GEOtop 0.9375Kmackenzie
•Download as PPT, PDF•
0 likes•248 views
GEOtop is a model that simulates energy and water balances at the land surface. It includes the following components: 1) Meteo data inputs such as temperature, precipitation, and radiation that can come from measurements or be modeled. 2) An energy balance model that solves the heat equation for snow and soil and accounts for phase changes. 3) A water balance model that solves for soil moisture and flow. This is solved separately from energy and can become decoupled at small time steps. 4) The model compromises between precision, spatial scale, and simulation time by allowing some numerical instability and mass loss to enable larger time steps. Users can control parameters to balance these tradeoffs.
Report
Share
Report
Share
![Structure ,[object Object],[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Recommended
Fluvial response to climate change
1) The document describes experiments conducted in a flume to simulate the response of a river system to changes in climate and sea level over time.
2) Two climate change scenarios involving changes in river discharge were tested - one with a long, gradual change and one with a shorter pulse. These scenarios were superimposed on a simulated sea level curve.
3) The results showed that shorter, more frequent changes in discharge (scenario 2) enhanced sediment deposition downstream compared to a longer change (scenario 1). Both scenarios caused erosion upstream and reduced erosion rates overall.
SURE2011_Civil_TruongNicolas
The methodology used to create the liquefaction map of Laval was the HAZUS methodology developed by the US Department of Homeland Security. This methodology provides an equation with four variables to calculate the probability of liquefaction based on the earthquake magnitude, ground conditions, and liquefaction susceptibility of the map units. The map shows that the sediments in Laval have low to none liquefaction susceptibility. For a magnitude 6 earthquake, the highest probabilities of liquefaction are around 3% in low susceptibility zones.
Final Report
This document summarizes a final report on analyzing climate data from a network perspective. The report analyzes climate time series data from different locations as nodes in a network, connected by correlations between their temperature and precipitation values. Key findings include that the current set of climate indices may not be enough to represent the global climate given Earth's size and complexity, and that certain ocean and land regions show stronger connections in the network and could be candidates for additional climate indices.
crossroads powerpt 2015final
This document summarizes an investigation of recent rill erosion at a reclaimed mine site approaching geomorphic equilibrium. It outlines the derivation of model formulas to predict rill formation based on stream power and shear stress. Field data on precipitation rates, runoff coefficients, and hillslope were collected to constrain the independent variables in the models. Results from applying the stream power and shear stress models to different rainfall rates are presented. The stream power model appears better at controlling rill formation at the site. Future work is proposed to further validate and refine the models.
1.2 form 4 speed, velocity and acceleration
This document defines key motion terms like distance, displacement, speed, velocity, and acceleration. It also lists equations of motion and describes distance-time graphs and speed-time graphs. It explains that in a vacuum, all objects accelerate at the same rate due to gravity, but with air resistance lighter objects can accelerate faster than heavier ones. Acceleration due to gravity on different planets is provided. Finally, it defines terminal velocity as the constant speed an object reaches when air resistance equals the object's weight during free fall.
ÖNCEL AKADEMİ: INTRODUCTION TO SEISMOLOGY
The document discusses concepts related to earthquake statistics and analysis including:
1) Determining an earthquake's location by measuring seismic wave speeds and its magnitude by measuring ground shaking.
2) The Gutenberg-Richter frequency-magnitude relationship which finds that the number of earthquakes decreases exponentially with magnitude.
3) Challenges in applying this relationship including non-linearity at large magnitudes, largest earthquake events, and roll-off at lower magnitudes.
Ai ch e.2010.nieves_melting
The document discusses using enthalpy landscape analysis and molecular dynamics simulations to calculate the melting temperature of materials. It defines thermodynamic melting as a first-order phase transition between crystalline and liquid phases. For homogeneous melting in perfect crystals, the liquid phase must nucleate from within the bulk lattice. The analysis samples the energy landscape to determine the density of states and calculate an effective temperature from its growth rate. Comparing the effective temperature to the simulation temperature can indicate if a system is in solid, melting, or liquid states. The method is applied to study the effects of system size, pressure, and voids on melting behavior.
ÖNCEL AKADEMİ: INTRODUCTION TO GEOPHYSICS
The document discusses concepts related to isostasy and flexural rigidity. It explains that the lithosphere behaves elastically and bends under applied loads through a process called flexure. The type of isostatic compensation depends on the flexural rigidity of the supporting material - with no rigidity leading to local isostasy and rigidity allowing for regional isostasy. Flexural rigidity is a plate's resistance to bending and depends on its elastic thickness. Plates with higher flexural rigidity will show shallow but wide deflections, while weaker plates will have higher amplitude deflections over smaller wavelengths and may collapse into local isostasy if sufficiently weak. Examples of flexure include foreland basins formed by
Recommended
Fluvial response to climate change
1) The document describes experiments conducted in a flume to simulate the response of a river system to changes in climate and sea level over time.
2) Two climate change scenarios involving changes in river discharge were tested - one with a long, gradual change and one with a shorter pulse. These scenarios were superimposed on a simulated sea level curve.
3) The results showed that shorter, more frequent changes in discharge (scenario 2) enhanced sediment deposition downstream compared to a longer change (scenario 1). Both scenarios caused erosion upstream and reduced erosion rates overall.
SURE2011_Civil_TruongNicolas
The methodology used to create the liquefaction map of Laval was the HAZUS methodology developed by the US Department of Homeland Security. This methodology provides an equation with four variables to calculate the probability of liquefaction based on the earthquake magnitude, ground conditions, and liquefaction susceptibility of the map units. The map shows that the sediments in Laval have low to none liquefaction susceptibility. For a magnitude 6 earthquake, the highest probabilities of liquefaction are around 3% in low susceptibility zones.
Final Report
This document summarizes a final report on analyzing climate data from a network perspective. The report analyzes climate time series data from different locations as nodes in a network, connected by correlations between their temperature and precipitation values. Key findings include that the current set of climate indices may not be enough to represent the global climate given Earth's size and complexity, and that certain ocean and land regions show stronger connections in the network and could be candidates for additional climate indices.
crossroads powerpt 2015final
This document summarizes an investigation of recent rill erosion at a reclaimed mine site approaching geomorphic equilibrium. It outlines the derivation of model formulas to predict rill formation based on stream power and shear stress. Field data on precipitation rates, runoff coefficients, and hillslope were collected to constrain the independent variables in the models. Results from applying the stream power and shear stress models to different rainfall rates are presented. The stream power model appears better at controlling rill formation at the site. Future work is proposed to further validate and refine the models.
1.2 form 4 speed, velocity and acceleration
This document defines key motion terms like distance, displacement, speed, velocity, and acceleration. It also lists equations of motion and describes distance-time graphs and speed-time graphs. It explains that in a vacuum, all objects accelerate at the same rate due to gravity, but with air resistance lighter objects can accelerate faster than heavier ones. Acceleration due to gravity on different planets is provided. Finally, it defines terminal velocity as the constant speed an object reaches when air resistance equals the object's weight during free fall.
ÖNCEL AKADEMİ: INTRODUCTION TO SEISMOLOGY
The document discusses concepts related to earthquake statistics and analysis including:
1) Determining an earthquake's location by measuring seismic wave speeds and its magnitude by measuring ground shaking.
2) The Gutenberg-Richter frequency-magnitude relationship which finds that the number of earthquakes decreases exponentially with magnitude.
3) Challenges in applying this relationship including non-linearity at large magnitudes, largest earthquake events, and roll-off at lower magnitudes.
Ai ch e.2010.nieves_melting
The document discusses using enthalpy landscape analysis and molecular dynamics simulations to calculate the melting temperature of materials. It defines thermodynamic melting as a first-order phase transition between crystalline and liquid phases. For homogeneous melting in perfect crystals, the liquid phase must nucleate from within the bulk lattice. The analysis samples the energy landscape to determine the density of states and calculate an effective temperature from its growth rate. Comparing the effective temperature to the simulation temperature can indicate if a system is in solid, melting, or liquid states. The method is applied to study the effects of system size, pressure, and voids on melting behavior.
ÖNCEL AKADEMİ: INTRODUCTION TO GEOPHYSICS
The document discusses concepts related to isostasy and flexural rigidity. It explains that the lithosphere behaves elastically and bends under applied loads through a process called flexure. The type of isostatic compensation depends on the flexural rigidity of the supporting material - with no rigidity leading to local isostasy and rigidity allowing for regional isostasy. Flexural rigidity is a plate's resistance to bending and depends on its elastic thickness. Plates with higher flexural rigidity will show shallow but wide deflections, while weaker plates will have higher amplitude deflections over smaller wavelengths and may collapse into local isostasy if sufficiently weak. Examples of flexure include foreland basins formed by
GEOtop_Lafouly
The document provides an overview of the HYDROSYS project and its applications. The project aims to enable on-site data collection and visualization to support new ways of observing environmental processes. It provides an infrastructure for teams to monitor events and analyze natural resources using handheld devices and potentially UAVs. This improves monitoring for environmental scientists through integrating handhelds, sensor networks, and modeling. The document also describes applying the GEOtop modeling system to simulate rainfall-runoff for the instrumented La Fouly watershed in Switzerland, using available meteorological, soil, and water level data.
Presentatation given at the MRI intiative
Riccardo Rigon presents information on two hydrological models he develops: GEOtop and JGrass-NewAGE. GEOtop is a distributed hydrological model that simulates key processes like radiation balance, water balance, snow/glaciers, surface and soil energy balance. JGrass-NewAGE is an open-source modeling framework for hydrological components with GIS integration across multiple languages and platforms. Rigon is looking for potential collaborators on projects utilizing these models.
Danube floodrisk i
This is the first part of a work describing the Hazard Mapping Guidelines written for the Danube Flood Risk Project
Padua cathy meeting
The document discusses the structure and components of GEOtop, a hydrological model. It contains 6 components: 1) radiation, 2) water balance, 3) snow-glaciers, 4) surface energy balance, 5) soil energy balance, and 6) vegetation interaction. Richards++ extends the original Richards equation to better model saturated-unsaturated transitions, soil freezing, and their impact on soil water retention curves and hydraulic conductivity.
Presentation given at the second I
An improvement of my thinking about landslide triggering. If someone needs more explanations, please write to me at riccardo.rigon at unitn.it
On the channel head location using DEM
This document discusses a meeting held in Bari, Italy from September 22-24, 2009 regarding estimating the location of channel heads in a watershed using digital elevation models (DEMs). It presents several key assumptions about landscape geomorphology and erosion processes. Methods discussed include analyzing the DEM, slope-area plots, cumulative area distributions, and energy indexes to identify thresholds that indicate the transition from hillslopes to valleys and the start of the channel network. Results from applying these techniques to a pilot catchment in eastern Gargano, Italy are also presented.
Git,Travis,Gradle
This is a short introduction to Git, Travis, and Gradle, alls used at command line and jointly with Github. It contains some examples and a few simple exercises that make you to get use to the commands. For further information, please see https://www.blogger.com/blogger.g?blogID=6687556278632539882#editor/target=post;postID=5021188629184529191;onPublishedMenu=allposts;onClosedMenu=allposts;postNum=0;src=postname
Come scrivere un CV
Racconto agli studenti di Ingegneria come scrivere un resumè, distinguendolo da un curriculum vitae. Aggiungere un po' di riferimenti
Laura Gatel
This document discusses preparatory work for coupling reactive solute transport modeling with flow modeling in the Cathy model. The objectives are to develop a 3D coupled surface and subsurface flow and reactive solute transport model based on Cathy, validate it using field data from two hillslopes in France, and upscale the model from hillslope to catchment scale. An existing subsurface flow model (Cathy) and solute transport model (Tran3d) will be merged to allow modeling of non-steady state cases. The merged model will be validated using two test cases from literature and applied to a site in Beaujolais, France.
Precepitation
The document discusses precipitation measurement and analysis. It defines precipitation as water that reaches the earth from the atmosphere in forms such as rainfall, snowfall, hail, etc. Rainfall is the predominant form and is measured using rain gauges, which can be non-recording or recording. Rainfall data is analyzed spatially over areas using methods like Thiessen polygons to determine average rainfall over a catchment from point measurements. Temporal variation in rainfall is also examined from hourly to annual scales to understand precipitation patterns.
PhD Qualifying
Interannual and decadal variations of Antarctic ice shelves using multi-mission satellite radar altimetry, and links with oceanic and atmospheric forcings
Hydrological Modelling of Slope Stability
Landslides of any type, and particularly soil slips, pose a great threat in mountainous and steep terrain environ- ments. One of the major triggering mechanisms for slope failures in shallow soils is the build-up of soil pore water pressure resulting in a decrease of effective stress. However, infiltration may have other effects both before and after slope failure. Especially, on steep slopes in shallow soils, soil slips can be triggered by a rapid drop in the apparent cohesion following a decrease in matric suction when a wetting front penetrates into the soil without generating positive pore pressures. These types of failures are very frequent in pre-alpine and alpine landscapes. The key factor for a realistic prediction of rainfall-induced landslides are the interdependence of shear strength and suction and the monitoring of suction changes during the cyclic wetting (due to infiltration) and drying (due to percolation and evaporation) processes. The non-unique relationship between suction and water content, expressed by the Soil Water Retention Curve, results in different values of suction and, therefore, of soil shear strength for the same water content, depending on whether the soil is being wetted (during storms) or dried (during inter-storm periods). We developed a physically based distributed in space and continuous in time model for the simulation of the hydrological triggering of shallow landslides at scales larger than a single slope. In this modeling effort particular weight is given to the modeling of hydrological processes in order to investigate the role of hydrologi- cal triggering mechanisms on soil changes leading to slip occurrences. Specifically, the 3D flow of water and the resulting water balance in the unsaturated and saturated zone is modeled using a Cellular Automata framework. The infinite slope analysis is coupled to the hydrological component of the model for the computation of slope stability. For the computation of the Factor of Safety a unified concept for effective stress under both saturated and unsaturated conditions has been used (Lu Ning and Godt Jonathan, WRR, 2010). A test case of a serious landslide event in Switzerland is investigated to assess the plausibility of the model and to verify its perfomance.
Fundamentals of Heat and Mass Transfer, Theodore L. Bergman,.docx
Fundamentals of Heat and Mass Transfer,
Theodore L. Bergman, Adrienne S. Lavine, Frank P. Incropera, David
P. DeWitt,
John Wiley & Sons, Inc.
•Chapter 1: Introduction
Conduction Heat Transfer
•Chapter 2: Introduction to Conduction
•Chapter 3: 1D, Steady-State Conduction
•Chapter 4: 2D, Steady-State Conduction
•Chapter 5: Transient Conduction
Convection Heat Transfer
•Chapter 6: Introduction to Convection
•Chapter 7: External Flow
•Chapter 8: Internal Flow
•Chapter 9: Free Convection
•Chapter 10: Boiling and Condensation
•Chapter 11: Heat Exchangers
Radiation Heat Transfer
•Chapter 12: Radiation Processes and Properties
•Chapter 13: Radiation Exchange Between Surfaces
1 Mass Transfer
•Chapter 14: Diffusion Mass Transfer
Chapter-6
(Introduction to Convection)
2
Chapter-6: Introduction to Convection (1/2)
6.1 The Convection Boundary Layers 378
6.1.1 The Velocity Boundary Layer
6.1.2 The Thermal Boundary Layer
6.1.3 The Concentration Boundary Layer
6.1.4 Significance of the Boundary Layers
6.2 Local and Average Convection Coefficients
6.2.1 Heat Transfer
6.2.2 Mass Transfer
6.2.3 The Problem of Convection
6.3 Laminar and Turbulent Flow
6.3.1 Laminar and Turbulent Velocity Boundary Layers
6.3.2 Laminar and Turbulent Thermal and Species
Concentration Boundary Layers
3
Chapter-6: Introduction to Convection (2/2)
6.4 The Boundary Layer Equations
6.4.1 Boundary Layer Equations for Laminar Flow
6.4.2 Compressible Flow
6.5 Boundary Layer Similarity: The Normalized Boundary Layer Equations
6.5.1 Boundary Layer Similarity Parameters
6.5.2 Functional Form of the
Solution
s
6.6 Physical Interpretation of the Dimensionless Parameters
6.7 Boundary Layer Analogies
6.7.1 The Heat and Mass Transfer Analogy
6.7.2 Evaporative Cooling
6.7.3 The Reynolds Analogy
6.8 Summary
4
Boundary Layers: Physical
Features
• Velocity Boundary Layer
– A consequence of viscous effects
associated with relative motion
between a fluid and a surface.
– A region of the flow characterized by
shear stresses and velocity gradients.
– A region between the surface
and the free stream whose
thickness ( ) increases in
the flow direction.
– Why does increase in the flow direction?
– Manifested by a surface shear
stress that provides a drag
force (FD).
– How does vary in the flow
direction? Why?
Thermal Boundary Layer
– A consequence of heat transfer
between the surface and fluid.
– A region of the flow characterized
by temperature gradients and heat
fluxes.
– A region between the surface and
the free stream whose thickness
increases in the flow direction.
– Why does increase in the
flow direction?
– Manifested by a surface heat
flux qsʹʹ and a convection
heat transfer coefficient h.
– If is constant, how doand h
vary in the flow d ...
PERMAFROST RUNOFF
This seminar presentation summarizes a study on runoff generation processes during spring and autumn seasons in a permafrost catchment on the Qinghai-Tibet Plateau. The study develops an approach to simulate runoff based on soil water storage and active layer dynamics. During spring thaw, saturation excess runoff and subsurface interflow within the thawed active layer are dominant. In autumn, groundwater discharge from the suprapermafrost talik is the main source of runoff as the active layer freezes. The approach accurately simulates runoff with coefficients over 0.9, demonstrating its ability to model runoff in permafrost environments.
4946486.ppt
The document discusses the fixed anvil temperature (FAT) hypothesis, which proposes that tropical anvil clouds appear at a fixed temperature determined by fundamental radiative and thermodynamic considerations. It summarizes research using cloud-resolving models and climate models to test this hypothesis. The FAT hypothesis appears to explain the robust positive longwave cloud feedback seen in climate model simulations, as tropical high clouds may remain at approximately the same temperature as the climate warms.
Vol. 1 (1), 2014, 7–11
Numerical Study of Forced Convection in a Rectangular Channel
Original Research Article
Journal of Chemistry and Materials Research Vol. 1 (1), 2014, 7–11
Salim Gareh
lect9_geodyn_convect [Compatibility Mode] [Repaired].ppt
This document discusses heat transfer and convection in the Earth. It covers the three main types of heat transfer - conduction, convection, and radioactive heating - and where each is dominant within the Earth. Conduction occurs throughout where temperature gradients exist, convection occurs in the mantle, outer core, and possibly inner core, and radioactive heating occurs primarily in the mantle and continental crust due to radioactive elements. The document also discusses heat flux at the Earth's surface and potential contributors to the mantle heat budget, as well as concepts like buoyancy, viscosity, scaling parameters, and boundary layer theory in the context of mantle convection.
SImulating Past Flood Event using Nays 2D Flood
This study report summarizes a flood simulation analysis conducted for Surabaya City using the Nays2D flood model. The objectives were to simulate past flood events to identify flood routing, inundation areas, and flooded velocity magnitudes. The analysis used a 2D flood model with topographic data, roughness coefficients, and observed discharge data as boundary conditions. The initial results showed limitations in representing flood routing along rivers. Adjusting the river data and roughness coefficients improved routing but larger domains may be needed. Future tasks include validating results against additional data and tributaries to reduce biases.
Physical Basis of Boundary Layer
This document discusses physical processes in the boundary layer near surfaces. It is divided into four sections:
1. Exchanges and climatic response near surfaces - Defines the active surface and exchanges of energy and mass. Describes the division of the soil-atmosphere system into sublayers.
2. Sub-surface climates - Discusses soil heat flux, temperature, water flow, and moisture in the sub-surface layer.
3. Surface layer climates - Covers lapse rates and stability, momentum and heat fluxes, and their relationship to wind speed and air temperature in the surface layer.
4. Outer layer climates - Briefly mentions this outermost layer but provides
Lecture22012.pptx
This lecture discusses hydrologic systems and models. Key points include:
- Hydrologic systems transform inputs like precipitation into outputs like streamflow through physical processes.
- Deterministic and stochastic models are used to represent these transformations in different dimensions of space, time, and randomness.
- The Reynolds Transport Theorem and continuity equation provide a framework for applying conservation principles to fluid systems like watersheds.
- Continuous and discrete representations of time are important for conceptualizing hydrologic data and balances.
Groundwater movement
Henri Darcy conducted experiments on water flow through sand columns and developed Darcy's law, which states that the flow rate is proportional to the hydraulic gradient and permeability of the material. Darcy's law forms the basis for analyzing groundwater flow. Groundwater flows from areas of higher total hydraulic head to lower head, where total head is equal to the elevation head plus pressure and velocity heads. Hydraulic conductivity, K, is a measure of how easily water can flow through the material and can be estimated using correlation methods based on soil properties or determined directly through hydraulic tests. Darcy's law is only valid for laminar flow conditions.
More Related Content
Viewers also liked
GEOtop_Lafouly
The document provides an overview of the HYDROSYS project and its applications. The project aims to enable on-site data collection and visualization to support new ways of observing environmental processes. It provides an infrastructure for teams to monitor events and analyze natural resources using handheld devices and potentially UAVs. This improves monitoring for environmental scientists through integrating handhelds, sensor networks, and modeling. The document also describes applying the GEOtop modeling system to simulate rainfall-runoff for the instrumented La Fouly watershed in Switzerland, using available meteorological, soil, and water level data.
Presentatation given at the MRI intiative
Riccardo Rigon presents information on two hydrological models he develops: GEOtop and JGrass-NewAGE. GEOtop is a distributed hydrological model that simulates key processes like radiation balance, water balance, snow/glaciers, surface and soil energy balance. JGrass-NewAGE is an open-source modeling framework for hydrological components with GIS integration across multiple languages and platforms. Rigon is looking for potential collaborators on projects utilizing these models.
Danube floodrisk i
This is the first part of a work describing the Hazard Mapping Guidelines written for the Danube Flood Risk Project
Padua cathy meeting
The document discusses the structure and components of GEOtop, a hydrological model. It contains 6 components: 1) radiation, 2) water balance, 3) snow-glaciers, 4) surface energy balance, 5) soil energy balance, and 6) vegetation interaction. Richards++ extends the original Richards equation to better model saturated-unsaturated transitions, soil freezing, and their impact on soil water retention curves and hydraulic conductivity.
Presentation given at the second I
An improvement of my thinking about landslide triggering. If someone needs more explanations, please write to me at riccardo.rigon at unitn.it
On the channel head location using DEM
This document discusses a meeting held in Bari, Italy from September 22-24, 2009 regarding estimating the location of channel heads in a watershed using digital elevation models (DEMs). It presents several key assumptions about landscape geomorphology and erosion processes. Methods discussed include analyzing the DEM, slope-area plots, cumulative area distributions, and energy indexes to identify thresholds that indicate the transition from hillslopes to valleys and the start of the channel network. Results from applying these techniques to a pilot catchment in eastern Gargano, Italy are also presented.
Git,Travis,Gradle
This is a short introduction to Git, Travis, and Gradle, alls used at command line and jointly with Github. It contains some examples and a few simple exercises that make you to get use to the commands. For further information, please see https://www.blogger.com/blogger.g?blogID=6687556278632539882#editor/target=post;postID=5021188629184529191;onPublishedMenu=allposts;onClosedMenu=allposts;postNum=0;src=postname
Come scrivere un CV
Racconto agli studenti di Ingegneria come scrivere un resumè, distinguendolo da un curriculum vitae. Aggiungere un po' di riferimenti
Viewers also liked (9)
Similar to GEOtop 0.9375Kmackenzie
Laura Gatel
This document discusses preparatory work for coupling reactive solute transport modeling with flow modeling in the Cathy model. The objectives are to develop a 3D coupled surface and subsurface flow and reactive solute transport model based on Cathy, validate it using field data from two hillslopes in France, and upscale the model from hillslope to catchment scale. An existing subsurface flow model (Cathy) and solute transport model (Tran3d) will be merged to allow modeling of non-steady state cases. The merged model will be validated using two test cases from literature and applied to a site in Beaujolais, France.
Precepitation
The document discusses precipitation measurement and analysis. It defines precipitation as water that reaches the earth from the atmosphere in forms such as rainfall, snowfall, hail, etc. Rainfall is the predominant form and is measured using rain gauges, which can be non-recording or recording. Rainfall data is analyzed spatially over areas using methods like Thiessen polygons to determine average rainfall over a catchment from point measurements. Temporal variation in rainfall is also examined from hourly to annual scales to understand precipitation patterns.
PhD Qualifying
Interannual and decadal variations of Antarctic ice shelves using multi-mission satellite radar altimetry, and links with oceanic and atmospheric forcings
Hydrological Modelling of Slope Stability
Landslides of any type, and particularly soil slips, pose a great threat in mountainous and steep terrain environ- ments. One of the major triggering mechanisms for slope failures in shallow soils is the build-up of soil pore water pressure resulting in a decrease of effective stress. However, infiltration may have other effects both before and after slope failure. Especially, on steep slopes in shallow soils, soil slips can be triggered by a rapid drop in the apparent cohesion following a decrease in matric suction when a wetting front penetrates into the soil without generating positive pore pressures. These types of failures are very frequent in pre-alpine and alpine landscapes. The key factor for a realistic prediction of rainfall-induced landslides are the interdependence of shear strength and suction and the monitoring of suction changes during the cyclic wetting (due to infiltration) and drying (due to percolation and evaporation) processes. The non-unique relationship between suction and water content, expressed by the Soil Water Retention Curve, results in different values of suction and, therefore, of soil shear strength for the same water content, depending on whether the soil is being wetted (during storms) or dried (during inter-storm periods). We developed a physically based distributed in space and continuous in time model for the simulation of the hydrological triggering of shallow landslides at scales larger than a single slope. In this modeling effort particular weight is given to the modeling of hydrological processes in order to investigate the role of hydrologi- cal triggering mechanisms on soil changes leading to slip occurrences. Specifically, the 3D flow of water and the resulting water balance in the unsaturated and saturated zone is modeled using a Cellular Automata framework. The infinite slope analysis is coupled to the hydrological component of the model for the computation of slope stability. For the computation of the Factor of Safety a unified concept for effective stress under both saturated and unsaturated conditions has been used (Lu Ning and Godt Jonathan, WRR, 2010). A test case of a serious landslide event in Switzerland is investigated to assess the plausibility of the model and to verify its perfomance.
Fundamentals of Heat and Mass Transfer, Theodore L. Bergman,.docx
Fundamentals of Heat and Mass Transfer,
Theodore L. Bergman, Adrienne S. Lavine, Frank P. Incropera, David
P. DeWitt,
John Wiley & Sons, Inc.
•Chapter 1: Introduction
Conduction Heat Transfer
•Chapter 2: Introduction to Conduction
•Chapter 3: 1D, Steady-State Conduction
•Chapter 4: 2D, Steady-State Conduction
•Chapter 5: Transient Conduction
Convection Heat Transfer
•Chapter 6: Introduction to Convection
•Chapter 7: External Flow
•Chapter 8: Internal Flow
•Chapter 9: Free Convection
•Chapter 10: Boiling and Condensation
•Chapter 11: Heat Exchangers
Radiation Heat Transfer
•Chapter 12: Radiation Processes and Properties
•Chapter 13: Radiation Exchange Between Surfaces
1 Mass Transfer
•Chapter 14: Diffusion Mass Transfer
Chapter-6
(Introduction to Convection)
2
Chapter-6: Introduction to Convection (1/2)
6.1 The Convection Boundary Layers 378
6.1.1 The Velocity Boundary Layer
6.1.2 The Thermal Boundary Layer
6.1.3 The Concentration Boundary Layer
6.1.4 Significance of the Boundary Layers
6.2 Local and Average Convection Coefficients
6.2.1 Heat Transfer
6.2.2 Mass Transfer
6.2.3 The Problem of Convection
6.3 Laminar and Turbulent Flow
6.3.1 Laminar and Turbulent Velocity Boundary Layers
6.3.2 Laminar and Turbulent Thermal and Species
Concentration Boundary Layers
3
Chapter-6: Introduction to Convection (2/2)
6.4 The Boundary Layer Equations
6.4.1 Boundary Layer Equations for Laminar Flow
6.4.2 Compressible Flow
6.5 Boundary Layer Similarity: The Normalized Boundary Layer Equations
6.5.1 Boundary Layer Similarity Parameters
6.5.2 Functional Form of the
Solution
s
6.6 Physical Interpretation of the Dimensionless Parameters
6.7 Boundary Layer Analogies
6.7.1 The Heat and Mass Transfer Analogy
6.7.2 Evaporative Cooling
6.7.3 The Reynolds Analogy
6.8 Summary
4
Boundary Layers: Physical
Features
• Velocity Boundary Layer
– A consequence of viscous effects
associated with relative motion
between a fluid and a surface.
– A region of the flow characterized by
shear stresses and velocity gradients.
– A region between the surface
and the free stream whose
thickness ( ) increases in
the flow direction.
– Why does increase in the flow direction?
– Manifested by a surface shear
stress that provides a drag
force (FD).
– How does vary in the flow
direction? Why?
Thermal Boundary Layer
– A consequence of heat transfer
between the surface and fluid.
– A region of the flow characterized
by temperature gradients and heat
fluxes.
– A region between the surface and
the free stream whose thickness
increases in the flow direction.
– Why does increase in the
flow direction?
– Manifested by a surface heat
flux qsʹʹ and a convection
heat transfer coefficient h.
– If is constant, how doand h
vary in the flow d ...
PERMAFROST RUNOFF
This seminar presentation summarizes a study on runoff generation processes during spring and autumn seasons in a permafrost catchment on the Qinghai-Tibet Plateau. The study develops an approach to simulate runoff based on soil water storage and active layer dynamics. During spring thaw, saturation excess runoff and subsurface interflow within the thawed active layer are dominant. In autumn, groundwater discharge from the suprapermafrost talik is the main source of runoff as the active layer freezes. The approach accurately simulates runoff with coefficients over 0.9, demonstrating its ability to model runoff in permafrost environments.
4946486.ppt
The document discusses the fixed anvil temperature (FAT) hypothesis, which proposes that tropical anvil clouds appear at a fixed temperature determined by fundamental radiative and thermodynamic considerations. It summarizes research using cloud-resolving models and climate models to test this hypothesis. The FAT hypothesis appears to explain the robust positive longwave cloud feedback seen in climate model simulations, as tropical high clouds may remain at approximately the same temperature as the climate warms.
Vol. 1 (1), 2014, 7–11
Numerical Study of Forced Convection in a Rectangular Channel
Original Research Article
Journal of Chemistry and Materials Research Vol. 1 (1), 2014, 7–11
Salim Gareh
lect9_geodyn_convect [Compatibility Mode] [Repaired].ppt
This document discusses heat transfer and convection in the Earth. It covers the three main types of heat transfer - conduction, convection, and radioactive heating - and where each is dominant within the Earth. Conduction occurs throughout where temperature gradients exist, convection occurs in the mantle, outer core, and possibly inner core, and radioactive heating occurs primarily in the mantle and continental crust due to radioactive elements. The document also discusses heat flux at the Earth's surface and potential contributors to the mantle heat budget, as well as concepts like buoyancy, viscosity, scaling parameters, and boundary layer theory in the context of mantle convection.
SImulating Past Flood Event using Nays 2D Flood
This study report summarizes a flood simulation analysis conducted for Surabaya City using the Nays2D flood model. The objectives were to simulate past flood events to identify flood routing, inundation areas, and flooded velocity magnitudes. The analysis used a 2D flood model with topographic data, roughness coefficients, and observed discharge data as boundary conditions. The initial results showed limitations in representing flood routing along rivers. Adjusting the river data and roughness coefficients improved routing but larger domains may be needed. Future tasks include validating results against additional data and tributaries to reduce biases.
Physical Basis of Boundary Layer
This document discusses physical processes in the boundary layer near surfaces. It is divided into four sections:
1. Exchanges and climatic response near surfaces - Defines the active surface and exchanges of energy and mass. Describes the division of the soil-atmosphere system into sublayers.
2. Sub-surface climates - Discusses soil heat flux, temperature, water flow, and moisture in the sub-surface layer.
3. Surface layer climates - Covers lapse rates and stability, momentum and heat fluxes, and their relationship to wind speed and air temperature in the surface layer.
4. Outer layer climates - Briefly mentions this outermost layer but provides
Lecture22012.pptx
This lecture discusses hydrologic systems and models. Key points include:
- Hydrologic systems transform inputs like precipitation into outputs like streamflow through physical processes.
- Deterministic and stochastic models are used to represent these transformations in different dimensions of space, time, and randomness.
- The Reynolds Transport Theorem and continuity equation provide a framework for applying conservation principles to fluid systems like watersheds.
- Continuous and discrete representations of time are important for conceptualizing hydrologic data and balances.
Groundwater movement
Henri Darcy conducted experiments on water flow through sand columns and developed Darcy's law, which states that the flow rate is proportional to the hydraulic gradient and permeability of the material. Darcy's law forms the basis for analyzing groundwater flow. Groundwater flows from areas of higher total hydraulic head to lower head, where total head is equal to the elevation head plus pressure and velocity heads. Hydraulic conductivity, K, is a measure of how easily water can flow through the material and can be estimated using correlation methods based on soil properties or determined directly through hydraulic tests. Darcy's law is only valid for laminar flow conditions.
Program on Mathematical and Statistical Methods for Climate and the Earth Sys...
Program on Mathematical and Statistical Methods for Climate and the Earth Sys...The Statistical and Applied Mathematical Sciences Institute
Physical processes in the earth system are modeled with mathematical representations called parameterizations. This talk will describe some of the conceptual approaches and mathematics used do describe physical parameterizations focusing on cloud parameterizations. This includes tracing physical laws to discrete representations in coarse scale models. Clouds illustrate several of the complexities and techniques common to many physical parameterizations. This includes the problem of different scales, sub-grid scale variability. Discussions of mathematical methods for dealing with the sub-grid scale will be discussed. In-exactness or indeterminate problems for both weather and climate will be discussed, including the problems of indeterminate parameterizations, and inexact initial conditions. Different mathematical methods, including the use of stochastic methods, will be described and discussed, with examples from contemporary earth system models.Numerical study on free-surface flow
This document summarizes a numerical study on free-surface flow conducted using a computational fluid dynamics (CFD) solver. The study examines the wave profile generated by a submerged hydrofoil through several test cases varying parameters like the turbulence model, grid resolution, and hydrofoil depth. The document provides background on the governing equations solved by the CFD solver and the interface capturing technique used to model the free surface. Five test cases are described that investigate grid convergence, the impact of laminar vs turbulent models, the relationship between hydrofoil depth and wave height, and the effect of discretization schemes.
Hydrological Modelling of Shallow Landslides
An introductory presentation of my PhD research covering rainfall-induced landslides, subsurface hydrology, unsaturated soil mechanics, Ground Penetration Radars and some experimental data from a field campaign that I conducted.
Improving Distributed Hydrologocal Model Simulation Accuracy Using Polynomial...
Improving Distributed Hydrologocal Model Simulation Accuracy Using Polynomial...Putika Ashfar Khoiri
1) The document discusses applying the Polynomial Chaos Expansion (PCE) method to optimize parameters in distributed hydrological models and improve simulation accuracy.
2) PCE involves approximating a model output as a polynomial function of uncertain input parameters. It can efficiently estimate model outputs across the parameter space.
3) The author plans to use PCE to optimize soil-related parameters like layer thickness and hydraulic conductivity in a distributed hydrological model of the Ibo River catchment. Determining the optimal polynomial order for the model is a key future task.L13 Plume Rise, types, methods, applications
The document discusses various purposes and types of air quality modeling, including policy analysis, emergency planning, and new source review. It describes the basic mechanisms of atmospheric transport like advection and dispersion. Types of air quality models include emission rate, ambient concentration, physical/mathematical, historical, trend, and prototype models. The document also examines concepts like plume rise, penetration, stability parameters, analytical solutions, numerical models, and semi-empirical equations used to model pollutant dispersion in the atmosphere.
1.Solar-Radiation.Energy.Temp-09.ppt
The document discusses global patterns of climatic elements like solar energy and temperature. It explains that solar insolation is controlled by factors like sun angle, day length, cloud cover, and surface albedo. Land areas generally receive more solar energy than adjacent bodies of water. Horizontal temperature patterns are influenced by sun angle, land-sea contrasts, ocean currents, elevation, albedo effects, and atmospheric circulation. Isotherms on maps will shift equatorward over cold surfaces and poleward over warm surfaces.
1.Solar-Radiation.Energy.Temp-09.ppt
The document discusses global patterns of climatic elements like solar energy and temperature. It explains that solar insolation is controlled by factors like sun angle, day length, cloud cover, and surface albedo. Land areas generally receive more solar energy than adjacent bodies of water. Horizontal temperature patterns are influenced by sun angle, land-sea contrasts, ocean currents, elevation, albedo effects, and atmospheric circulation. Isotherms on maps will shift equatorward over cold surfaces and poleward over warm surfaces.
Similar to GEOtop 0.9375Kmackenzie (20)
Fundamentals of Heat and Mass Transfer, Theodore L. Bergman,.docx
Fundamentals of Heat and Mass Transfer, Theodore L. Bergman,.docx
lect9_geodyn_convect [Compatibility Mode] [Repaired].ppt
lect9_geodyn_convect [Compatibility Mode] [Repaired].ppt
Program on Mathematical and Statistical Methods for Climate and the Earth Sys...
Program on Mathematical and Statistical Methods for Climate and the Earth Sys...
Improving Distributed Hydrologocal Model Simulation Accuracy Using Polynomial...
Improving Distributed Hydrologocal Model Simulation Accuracy Using Polynomial...
More from Riccardo Rigon
Models for hazards mapping
This is a short introduction to understand just a little how hydrological models and some hydraulics works. Much relies on the oral presentation. Unfortunately this is is Italian
A short introduction to some hydrological extreme phenomena
For high School teachers. Kept at MUSE on October 20th 2017. It covers the typology of some phenomena giving a little of explanation of the diverse dynamics. Is a product of LIFE FRANCA EU project
EvaporAzione
This is the presentation given for the admission to his second year of Ph.D. studies by Michele Bottazzi. Besides sumamrizing the work done during the first year, Michele traces his pathways into the second year with an abrupt change of direction towards simulating and discussion transpiration from plants.
Francesco Serafin
This is the presentation for his admission to the third year of his Ph.D.. It talks about the several direction his work had taken and look forward to the conclusion of some task in form of code release and published papers.
Meledrio
This contains a summary of the data available for torrente Meledrio. We are using it for the project SteepsStreams, and we want to estimate its water and sediment budgets.
Lisbon talk for SteepStreams
This contains the talk given at the 2017 meeting of the SteepStream ERANET project. It is assumed to talk about the hydrological cycle of the Noce river in Val di Sole valley (Trentino, Italy). It is a preliminary view of what we are going to do in the project.
Grids implementation
This contains some hints and discussions about how to implement Grids in a Object Oriented language. Specifically the discussion is made with Java in mind, but obviosly, not limited to it.
Grids
How to implement unstructured grids in Java (or BTW in another OO language). First start from understanding what grids are and how they are described in algebraic topology. Mathematics first, can be a good idea. No explicit implementation here, but concept and literature to study and start from..
Some photos from the field
Anna Cestari depicts some situations she finds in developing countries regarding water management along her works with the World Bank.
Virtual water fem 07032017
Virtual water refers to the water used in the production of agricultural and industrial products. Large amounts of water are required to produce many goods - for example, 1kg of beef requires 16,000kg of water. Countries import virtual water when they import water-intensive goods produced elsewhere. This is important for water-stressed countries. For example, in Southern Africa the average annual runoff in South Africa is 45.2km3/year, while Lesotho contributes an additional 5.2km3/year through water transfers. Several countries in the region are already experiencing water stress according to common definitions. The document provides statistics on water availability and usage in several Southern African countries.
Dalton Prize Lecture 2017 by Dani Or
John Dalton established quantitative hydrology in 1799 by creating a water balance for England and Wales using rainfall and river flow data. He attributed the origin of springs to rainfall, rejecting long-held myths and laying the foundation for the modern understanding of the hydrological cycle. Recent work has focused on understanding soil evaporation dynamics at the pore scale, finding that as the soil surface dries, the spacing between pores increases, leading to higher evaporative flux per pore that can maintain an overall constant evaporation rate despite a decreasing surface area. This pore-scale model provides insights into evaporation rates, surface resistance, and energy partitioning during drying.
Projecting Climate Change Impacts on Water Resources in Regions of Complex To...
The title describes it all. Jeremy Pal's student Brianna Pagàn and coworkers put an impressive set of tools to estimate the impacts of land use and climate change on water resources of south California.
The modern flood forecasting
The document discusses modern approaches to flood forecasting. It begins by noting the importance of data collection and organization for hydrological modeling and forecasting. Key tools mentioned for hydrological modeling include HEC-HMS, SWAT, and SWMM. The document also discusses the importance of using multiple linked models to account for hydrological and hydraulic processes. Examples provided include systems used by ARPAE in Italy and the state of Iowa in the US. These contemporary approaches are characterized as using high-resolution data, multi-objective multi-process models, and cyberinfrastructure to run complex distributed hydrological models. However, the document notes that while such sophisticated systems provide valuable information, there are still open questions around verification at small scales
La moderna previsione delle piene
This describe how post-modern, contemporary and post-contemporary systems for flood forecasting work.
Hydrological Extremes and Human societies
This is the talk given by Giuliano di Baldassarre at the Summer School on Hydrological Modeling kept in Cagliari this here. The topic is very up-to-date and important. He presented an analysis of a few case studies and suggested some literature.
The Science of Water Transport and Floods from Theory to Relevant Application...
This is the presentation given by Ricardo Mantilla at University of Iowa in 2017. It talks about the system implemented in Iowa for flood forecasting in real time
The Science of Water Transport and Floods from Theory to Relevant Applications
This is the presentation given by Riccardo Mantilla at Univerisity of Illinois and about the System for forecasting floods in Iowa.
Climaware at the end
This is one (Riccardo Rigon's) contribution to the CLIMAWARE project. It contains a few paper on major journals and some research path to follow.
Hymod model for catchments
This describe how the Hymod (Moore 1985) model works. It is used as an example of catchment model which includes runoff production.
Egu2017 pico
These are the slides presented at EGU 2017 General Meeting, the Pico session was entlited: Monitoring and modelling flow paths, supply and quality in a changing mountain cryosphere
More from Riccardo Rigon (20)
A short introduction to some hydrological extreme phenomena
A short introduction to some hydrological extreme phenomena
Projecting Climate Change Impacts on Water Resources in Regions of Complex To...
Projecting Climate Change Impacts on Water Resources in Regions of Complex To...
The Science of Water Transport and Floods from Theory to Relevant Application...
The Science of Water Transport and Floods from Theory to Relevant Application...
The Science of Water Transport and Floods from Theory to Relevant Applications
The Science of Water Transport and Floods from Theory to Relevant Applications
Recently uploaded
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
“I’m still / I’m still / Chaining from the Block”
“An Outlook of the Ongoing and Future Relationship between Blockchain Technologies and Process-aware Information Systems.” Invited talk at the joint workshop on Blockchain for Information Systems (BC4IS) and Blockchain for Trusted Data Sharing (B4TDS), co-located with with the 36th International Conference on Advanced Information Systems Engineering (CAiSE), 3 June 2024, Limassol, Cyprus.
GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
Building RAG with self-deployed Milvus vector database and Snowpark Container...
This talk will give hands-on advice on building RAG applications with an open-source Milvus database deployed as a docker container. We will also introduce the integration of Milvus with Snowpark Container Services.
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdf
Discover how MongoDB Atlas and vector search technology can revolutionize your application's search capabilities. This comprehensive presentation covers:
* What is Vector Search?
* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
Securing your Kubernetes cluster_ a step-by-step guide to success !
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
A tale of scale & speed: How the US Navy is enabling software delivery from l...
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
Climate Impact of Software Testing at Nordic Testing Days
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
ここ3000字までしか入らないけどタイトルの方がたくさん文字入ると思います。
TrustArc Webinar - 2024 Global Privacy Survey
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdf
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AI
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AIVladimir Iglovikov, Ph.D.
Presented by Vladimir Iglovikov:
- https://www.linkedin.com/in/iglovikov/
- https://x.com/viglovikov
- https://www.instagram.com/ternaus/
This presentation delves into the journey of Albumentations.ai, a highly successful open-source library for data augmentation.
Created out of a necessity for superior performance in Kaggle competitions, Albumentations has grown to become a widely used tool among data scientists and machine learning practitioners.
This case study covers various aspects, including:
People: The contributors and community that have supported Albumentations.
Metrics: The success indicators such as downloads, daily active users, GitHub stars, and financial contributions.
Challenges: The hurdles in monetizing open-source projects and measuring user engagement.
Development Practices: Best practices for creating, maintaining, and scaling open-source libraries, including code hygiene, CI/CD, and fast iteration.
Community Building: Strategies for making adoption easy, iterating quickly, and fostering a vibrant, engaged community.
Marketing: Both online and offline marketing tactics, focusing on real, impactful interactions and collaborations.
Mental Health: Maintaining balance and not feeling pressured by user demands.
Key insights include the importance of automation, making the adoption process seamless, and leveraging offline interactions for marketing. The presentation also emphasizes the need for continuous small improvements and building a friendly, inclusive community that contributes to the project's growth.
Vladimir Iglovikov brings his extensive experience as a Kaggle Grandmaster, ex-Staff ML Engineer at Lyft, sharing valuable lessons and practical advice for anyone looking to enhance the adoption of their open-source projects.
Explore more about Albumentations and join the community at:
GitHub: https://github.com/albumentations-team/albumentations
Website: https://albumentations.ai/
LinkedIn: https://www.linkedin.com/company/100504475
Twitter: https://x.com/albumentations20240605 QFM017 Machine Intelligence Reading List May 2024
Everything I found interesting about machines behaving intelligently during May 2024
Full-RAG: A modern architecture for hyper-personalization
Mike Del Balso, CEO & Co-Founder at Tecton, presents "Full RAG," a novel approach to AI recommendation systems, aiming to push beyond the limitations of traditional models through a deep integration of contextual insights and real-time data, leveraging the Retrieval-Augmented Generation architecture. This talk will outline Full RAG's potential to significantly enhance personalization, address engineering challenges such as data management and model training, and introduce data enrichment with reranking as a key solution. Attendees will gain crucial insights into the importance of hyperpersonalization in AI, the capabilities of Full RAG for advanced personalization, and strategies for managing complex data integrations for deploying cutting-edge AI solutions.
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?
ABSTRACT: A prima vista, un mattoncino Lego e la backdoor XZ potrebbero avere in comune il fatto di essere entrambi blocchi di costruzione, o dipendenze di progetti creativi e software. La realtà è che un mattoncino Lego e il caso della backdoor XZ hanno molto di più di tutto ciò in comune.
Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile.
BIO: Sostenitrice del software libero e dei formati standard e aperti. È stata un membro attivo dei progetti Fedora e openSUSE e ha co-fondato l'Associazione LibreItalia dove è stata coinvolta in diversi eventi, migrazioni e formazione relativi a LibreOffice. In precedenza ha lavorato a migrazioni e corsi di formazione su LibreOffice per diverse amministrazioni pubbliche e privati. Da gennaio 2020 lavora in SUSE come Software Release Engineer per Uyuni e SUSE Manager e quando non segue la sua passione per i computer e per Geeko coltiva la sua curiosità per l'astronomia (da cui deriva il suo nickname deneb_alpha).
National Security Agency - NSA mobile device best practices
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
“Building and Scaling AI Applications with the Nx AI Manager,” a Presentation...
“Building and Scaling AI Applications with the Nx AI Manager,” a Presentation...Edge AI and Vision Alliance
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/building-and-scaling-ai-applications-with-the-nx-ai-manager-a-presentation-from-network-optix/
Robin van Emden, Senior Director of Data Science at Network Optix, presents the “Building and Scaling AI Applications with the Nx AI Manager,” tutorial at the May 2024 Embedded Vision Summit.
In this presentation, van Emden covers the basics of scaling edge AI solutions using the Nx tool kit. He emphasizes the process of developing AI models and deploying them globally. He also showcases the conversion of AI models and the creation of effective edge AI pipelines, with a focus on pre-processing, model conversion, selecting the appropriate inference engine for the target hardware and post-processing.
van Emden shows how Nx can simplify the developer’s life and facilitate a rapid transition from concept to production-ready applications.He provides valuable insights into developing scalable and efficient edge AI solutions, with a strong focus on practical implementation.Recently uploaded (20)
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024
GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024
GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024
Building RAG with self-deployed Milvus vector database and Snowpark Container...
Building RAG with self-deployed Milvus vector database and Snowpark Container...
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdf
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdf
Securing your Kubernetes cluster_ a step-by-step guide to success !
Securing your Kubernetes cluster_ a step-by-step guide to success !
A tale of scale & speed: How the US Navy is enabling software delivery from l...
A tale of scale & speed: How the US Navy is enabling software delivery from l...
Climate Impact of Software Testing at Nordic Testing Days
Climate Impact of Software Testing at Nordic Testing Days
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdf
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdf
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AI
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AI
20240605 QFM017 Machine Intelligence Reading List May 2024
20240605 QFM017 Machine Intelligence Reading List May 2024
Full-RAG: A modern architecture for hyper-personalization
Full-RAG: A modern architecture for hyper-personalization
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?
National Security Agency - NSA mobile device best practices
National Security Agency - NSA mobile device best practices
“Building and Scaling AI Applications with the Nx AI Manager,” a Presentation...
“Building and Scaling AI Applications with the Nx AI Manager,” a Presentation...