The document introduces JAMS (Jena Adaptable Modelling System), an open-source modelling framework for developing integrated eco-hydrological simulation models. JAMS allows for modular construction of models from reusable components. It includes components and models for hydrological processes, nutrient transport, glaciers, and more. JAMS aims to provide flexible, scalable and easy to use tools to support environmental management through integrated modelling of land and water systems.
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Develop a replicable integrated model (methodology) for evaluating the extent and development potential of renewable (non-renewable) groundwater resources in arid lands, with the Eastern Desert of Egypt as a pilot site.
The model will be replicable for similar arid areas; North of Sudan, Tibesty, Yemen, and Saudi Arabia.
Building national capacities.
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Stephen Bathgate from Forest research on how implementing a GIS delivered savings and efficiencies to a small workforce. Presented at 6th Scottish QGIS UK user group meeting.
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De primaire taak van Vitens is ervoor zorgen dat klanten te allen tijde kunnen beschikken over topkwaliteit drinkwater. Met een netwerk van meer dan 49.000 km relatief oude pijpleiding, is het kostenefficiënt onderhouden van het netwerk een voortdurende uitdaging. Veelal wordt gekozen voor preventief onderhoud waardoor pijpleiding vaak eerder wordt vervangen dan strikt nodig is. Desondanks treden er regelmatig lekken op met soms grote schade en bedreiging van de leveringszekerheid.
Het lokaliseren van lekken gebeurt handmatig, wat veel tijd en geld kost omdat het zoekgebied vaak kan oplopen tot tientallen kilometers. Vitens vroeg CGI en IBM om met behulp van een big-datatoepassing een methode te ontwikkelen voor het lokaliseren van lekken. In een proof of value werd historische data geanalyseerd waarbij de helft van de geanalyseerde lekken tot op 2,5 km nauwkeurig kon worden gelokaliseerd.
Door sneller lekken te lokaliseren of zelfs te voorspellen, kan Vitens niet alleen direct besparen op inzet van medewerkers voor lokalisatie en bezetting van het callcenter. Het maakt het ook mogelijk om de effectieve levensduur van pijpleidingen te verlengen of, bij minder kritische delen van het netwerk, zelfs te kiezen voor de maximale levensduur waarbij pas leiding pas wordt vervangen bij het daadwerkelijk optreden van lekken.
John McGaughey, CEO/President of Mira Geoscience offers his thoughts and the practices of integrated geophysical interpretation at the 3D Interest Group
MOSAICC:An inter-disciplinary system of models to evaluate the impact of cli...FAO
MOSAICC:An inter-disciplinary system of models to evaluate the impact of climate change on agriculture, By Francois Delobel and Oscar Rojas ,Land and Water Days in Near East & North Africa, 15-18 December 2013, Amman, Jordan
Objectives:
Develop a replicable integrated model (methodology) for evaluating the extent and development potential of renewable (non-renewable) groundwater resources in arid lands, with the Eastern Desert of Egypt as a pilot site.
The model will be replicable for similar arid areas; North of Sudan, Tibesty, Yemen, and Saudi Arabia.
Building national capacities.
Decision support tools for forestry using open source softwareRoss McDonald
Stephen Bathgate from Forest research on how implementing a GIS delivered savings and efficiencies to a small workforce. Presented at 6th Scottish QGIS UK user group meeting.
BA Summit 2014 Predictive maintenance: Met big data het lek dichtenDaniel Westzaan
Predictive maintenance is een van de big-datatoepassingen met enorme potentie. Voor Vitens, het grootste waterbedrijf van Nederland met meer dan 5,5 miljoen klanten, toonden CGI en IBM in een proof of value aan dat sneller en nauwkeuriger lekken lokaliseren in potentie miljoenen kan besparen.
De primaire taak van Vitens is ervoor zorgen dat klanten te allen tijde kunnen beschikken over topkwaliteit drinkwater. Met een netwerk van meer dan 49.000 km relatief oude pijpleiding, is het kostenefficiënt onderhouden van het netwerk een voortdurende uitdaging. Veelal wordt gekozen voor preventief onderhoud waardoor pijpleiding vaak eerder wordt vervangen dan strikt nodig is. Desondanks treden er regelmatig lekken op met soms grote schade en bedreiging van de leveringszekerheid.
Het lokaliseren van lekken gebeurt handmatig, wat veel tijd en geld kost omdat het zoekgebied vaak kan oplopen tot tientallen kilometers. Vitens vroeg CGI en IBM om met behulp van een big-datatoepassing een methode te ontwikkelen voor het lokaliseren van lekken. In een proof of value werd historische data geanalyseerd waarbij de helft van de geanalyseerde lekken tot op 2,5 km nauwkeurig kon worden gelokaliseerd.
Door sneller lekken te lokaliseren of zelfs te voorspellen, kan Vitens niet alleen direct besparen op inzet van medewerkers voor lokalisatie en bezetting van het callcenter. Het maakt het ook mogelijk om de effectieve levensduur van pijpleidingen te verlengen of, bij minder kritische delen van het netwerk, zelfs te kiezen voor de maximale levensduur waarbij pas leiding pas wordt vervangen bij het daadwerkelijk optreden van lekken.
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A numerical model is a system of mathematical equations that depict the functioning of the system and its variables. A useful model must identify the factors that can influence the course of a particular decision and shows the impacts. A good model becomes a tool for decision making and predictions. A model helps in simulating the system for finding out some solutions . To simulate something physical, you will first need to create a mathematical model which represents that physical object. Models can take many forms including declarative, functional, constraint, spatial or multimodel.
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In this deck from the Blue Waters Summit, Susan Bates from NCAR presents: Blue Waters Enabled Advances in the Fields of Atmospheric Science, Climate, and Weather.
For the past five years, the Blue Waters Project has provided an invaluable platform for research in the fields of atmospheric science, climate, and weather. The computationally intensive numerical models running on Blue Waters push the limits of model resolution and/or capability in first-of-their-kind simulations. These projects span the full breadth of spatial and temporal scales, from discrete events such as tropical cyclones and tornadoes, to regional analyses of extreme events, to global-scale research on the effects of climate change. In this talk, we will explore progress in these research areas enabled by Blue Waters and demonstrate why this particular resource has been so important.
Watch the video: https://wp.me/p3RLHQ-iYR
Learn more: https://bluewaters.ncsa.illinois.edu/blue-waters-symposium-2018
Sign up for our insideHPC Newsletter: http://insidehpc.com/newsletter
Environmental Management Modeling Activities at Los Alamos National Laborator...Velimir (monty) Vesselinov
esselinov, V.V., et al., Environmental Management Modeling Activities at Los Alamos National Laboratory (LANL), Department of Energy Technical Exchange Meeting, Performance Assessment Community of Practice, Hanford, April 13-14, 2010.
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1. JAMS Modelling System
open-source eco-hydrological simulation models
Part 1: Introduction
Sven Kralisch
Geographic Information Science
Institute for Geography
6. • Pressures on River Basins
– Overexploitation & pollution
(population growth, deforestation, intense
agriculture)
– Climate Change
• Impacts
– Degradation of land and water
resources (e.g. soil, wetlands) and
hydrological ecosystem services
– Floods, droughts, water scarcity, water
pollution, soil erosion, landslides, …
Background
6
7. …to provide knowledge-based support for
integrated land and water resources management
Objective
1. Understand eco-hydrological
processes and their interactions
2. Create computer models of
integrated eco-hydrological systems
3. Evaluate scenarios and assess their
impacts using computer models
7
8. • Data & information management
• Model/data integration
• Modelling of new processes
• Big data processing
• Complex workflows
• Communication of results
Methodological Challenges
8
13. The Modelling Workflow @
Design
Prepare data
Parameterize
Run
Calibrate
Analyze
Library Model
Design
Prepare data
Parameterize
Run
Calibrate
Analyze
Design
Prepare data
Parameterize
Run
Calibrate
Analyze
13
14. JAMS System Layout
Expert Knowledge
Model definition
Component
repository
System core
GUI
Model
•Creation
•Calibration
•Analysis
Runtime system
•Model setup & execution
•Process communication
•Data I/O
API
•Data types
•Common functions
•Data I/O interfaces
Data
•Management
•Exploration
•Visualization
14
15. Type 1: Component
• Properties:
– parameter (P) and initial state (X0)
– inner state (X)
– Slots for input (I) and
output (O) data
• Behavior:
– calculate output and new state from input and old state
• Purpose:
– physical process simulation
– data I/O, aggregation, …
– visualization
Model Building Blocks
I O
X
X0
P
15
16. Type 2: Context
• Are containers for other (child) components
• Take control of
– child component execution (e.g. iterative, conditional)
– data exchange between child components
• Examples:
Model Building Blocks
Component
Context
Sequence
Selector
Iterator
n-times
16
17. • Contexts control spatial & temporal iteration
Space & Time?
Space: discrete modelling units
(e.g. rasters or polygons)
Time: discrete points in time
(e.g. time interval + step size)
Start: 01/11/1980
End: 31/10/2000
Step: 1 day
17
18. Discrete space-time simulation in JAMS
Generic Model Layout
Temporal Context
Time
Spatial Context
Space
Process simulation &
data processing, e.g.
• Radiation
• ET & Interception
• Snow processes
• Soil infiltration,
storage, percolation
• Lateral flow
• Data aggregation
• …
Spatial iteration
Temporal iteration
18
21. • JAMS comes with a rich set of components which form the basis
for the J2000 hydrological model family:
– Quantitative hydrology daily/monthly (J2000/J2000g)
– Nutrient transport (J2000-S)
– Glacier processes (J2000-Glacier)
– Floodplain inundation (J2000-Flood)
• JAMS models can be easily adapted to specific needs
– Lakes and reservoirs
– Irrigation
– Soil salinity and soil erosion
– Urban/peri-urban influences (sewer systems, rain water storage, sealing)
Component Library
21
22. • Hydrological model
• Process-oriented, timed-
event type
• Spatially distributed (HRUs)
• Spatio-temporal scope:
– lower meso-scale to lower
macro-scale catchments
(~101 – 105 km²)
– timed event modelling in
hourly, daily or monthly
time steps
(Krause, 2001)
JAMS Models: J2000
Delineation of
Hydrological Response Units (HRUs)
22
(Flügel, 1996)
(Bongartz, 2001)
GIS
Overlay
Topography
Landuse, land-cover
Soil-types
Hydrogeology
23. J2000 Process Simulation
Driving data: P, T, …
ET
Interception Snow
Unsaturated zone
Saturated zone
Upper zone
Lower zone
Additional drivers: Radiation …
Runoff
Surface RO
Interflow 1
Interflow 2
Baseflow
Infiltration DPS
MPS LPS
MPS LPS
MPS LPS
1. Process simulation on each HRU 2. Simulation of routing processes
between HRUs/river reaches
23
HRU 1
HRU 4
HRU 2 HRU 3
HRU 5
HRU 6
Reach 1 Reach 3
Reach 2
24. • Model context: reading model
entities (HRU and reach
elements)
• Temporal context: iteration in
time, reading temporal input data
(e.g. climate) and aggregating/
writing result data (e.g. runoff)
• Spatial context: iteration in space
(HRUs/reaches), simulation of
hydrological processes at each
point in time/space (e.g.
interpolation of climate data, ET
and snow simulation)
J2000 Model in JAMS
Temporal
Context
Model
Context
Spatial
Context
Climate data
Interpolation
Potential ET
Snow
Radiation
Soil Water
Groundwater
Spatial data input: model entities with landuse, soil,
geology, topography
Climate data input: P, Tmin, Tavg, Tmax,
sunshine, windspeed, rel. humidity
Result output: act. ET, runoff, …
24
25. • Nitrate model based on
– SWAT (Arnold et al., 1998)
– J2000 (Krause, 2001)
• J2000-S = J2000 + SWAT processes:
– soil temperature, soil nitrate balance,
plant growth, land-use management,
groundwater nitrate accounting
• Spatially distributed (HRUs)
• Spatio-temporal scope:
– lower to upper meso-scale catchments
(~101 – 104 km²)
– timed event modelling in daily steps
(Fink et al., 2007)
JAMS Models: J2000-S
N
observed
N
modelled
(SWAT)
N
modelled
(J2K-S)
Spatial resolution of N load
25
26. J2000-S Process Simulation
Driving data: P, T, …
ET
Interception Snow
Unsaturated zone
Saturated zone
Upper zone
Lower zone
Additional drivers: Radiation …
Runoff
Surface RO
Interflow 1
Interflow 2
Baseflow
Infiltration DPS
MPS LPS
MPS LPS
MPS LPS
N
N
N
N
Soil Temperature
Module
Plant Growth
Module
Biomass
Rooting depth
LAI
Landuse
Management
Module
Fertilization
Tillage
Harvest
Soil Nitrogen
Module
Nitrification
Denitrification
Volatilisation
Plant uptake
26
27. • Core structure of the J2000
model
• Additional components for
– agricultural management (tilling,
fertilizing, harvesting, …)
– plant growth
– soil temperature
– soil nitrogen balance
J2000-S Model in JAMS
^^
Temporal
Context
Model
Context
Spatial
Context
Spatial data input: model entities with landuse, soil,
geology, topography
Climate data
Interpolation
Potential ET
Snow
Radiation
Soil Water
Groundwater
Routing
Management
Soil Temp.
Soil Nitrogen
Plant Growth
Result output: act. ET, runoff,
Nitrogen load, …
Climate data input: P, Tmin, Tavg, Tmax,
sunshine, windspeed, rel. humidity
27
31. • Flexible model data I/O
– Varying data sources
– Transparent data output
• Fast processing of large data sets
• Data visualization & analysis
– time series & geo data
Model Data Exploration (JADE)
31
e.g.
x: time
y: space
z: attributes
34. Uncertainty analysis
Objective:
• Estimate uncertainty
of model simulation
• Apportion output
uncertainty to input
factor uncertainty
• Validate model
• Model Calibration
• Sensitivity/uncertainty analysis
Optimization Assistant (OPTAS)
Sensitivity analysis
Objective:
• Identify influencial
and non-influencial
input-factors
• Quantify parameter
interactions
• Analyse temporal
patterns of sensitivity
Step
1
Step
2
Objective:
• Fit model simulation to
observations
Challenges:
• Ill-posed multi-
objective
parameter optimization
problem
• Determine realisitic
values automatically
Optimization
Step
3
Calibrated model
Uncalibrated model
• Sensitivity analysis
• Optimization
• Solution evaluation
• Uncertainty analysis
Model
validation
34
35. JAMS Cloud Server Environment
REST interface:
• Exchange of libraries, input and
result data between clients and
server
• Job control / information
• User permission management
Advantages:
• Remote model simulation
• High-performance processing
• Load balancing
• Easy deployment from JAMS interface
35
40. • Download available at JAMS website (http://jams.uni-
jena.de) for various platforms (JAVA based)
• Online documentation, tutorials and papers available
cover
– JAMS installation and configuration
– Tutorials covering creation of JAMS models
– Articles on setting up a development environment for
components
– Tutorials on JAMS tools
Download & Documentation
40
42. 42
Kralisch, S. & Fischer, C. (2012). Model representation, parameter calibration and parallel computing –
the JAMS approach. Proceedings of the International Congress on Environmental Modelling and
Software, Sixth Biennial Meeting (R. Seppelt, A. A. Voinov, S. Lange & D. Bankamp, eds.). Leipzig,
Germany.
Kralisch, S. & Krause, P. (2006). JAMS - A Framework for Natural Resource Model Development and
Application. Proceedings of the iEMSs Third Biannual Meeting (A. Voinov, A. Jakeman & A. E. Rizzoli,
eds.). Burlington, USA.
References