This document analyzes the pattern of discharge at the SMART (Stormwater Management and Road Tunnel) in Klang Valley, Malaysia. The SMART Tunnel was constructed in 2006 to divert flood waters from heavy rainfall and storms. The analysis found that the discharge pattern at the SMART Tunnel was not fully dependent on rainfall patterns, as some major flood events did not match theoretical models. This was due to factors like uncontrolled development near rivers, obstructions in river systems, and rivers with inadequate cross-sections. While 8 of 14 major floods matched rainfall patterns, 6 did not due to these additional physical factors affecting flood discharges. The document recommends further research to address these issues and improve the SMART Tunnel's ability to manage stormwater
Prediction of Flood Risk under the Impact of Climate Change on the Thermal Po...Tuu Nguyen
In Gangwon Province, the rainy season with an extremely high precipitation caused extreme flood event in the summer in 2006. A one dimensional (1D) hydraulic model was developed for mountainous river reaches located closely to the Yeongwol thermal power plant. Input data, including topographical data and river flow measured every 10 minutes from July 1st to September 30th, 2013 by Han River Flood Control Office (HRFCO), were imported to a 1D hydraulic model. The results were the simulated water levels, water discharges and average flow velocities at each cross-section. The simulated water levels in different years (including 2011, 2012 and 2014) were used to calibrate and validate the applied model. Climate change scenarios were estimated by referencing the climate change adaptation strategies of the Korean government and historical information about the extreme flood events.
DETERMINATION OF NET FLOWS INTO ALMATTI RESERVOIR FROM CWC GAUGE DATA AND RES...IAEME Publication
This paper presents the determination of net flows into Almatti reservoir from CWC data and reservoir data. From the study it can be concluded that the average flow in to Almatti will be 574.86 TMC, the maximum inflow will be 1196.8 TMC and the minimum flow will be 166.99 TMC. The flows in annual in deficit years may reduce by about 50 TMC but there is no variation in the good years in the good years as the storage effects will take care of this aspect during good years. It can be concluded that there will be reduction of flows in the June and July flows in the ultimate scenario except in very good years.
This document describes a procedure for developing a conceptual model of a river system for flood control purposes using a case study of the Demer River in Belgium. Key points:
- A conceptual model was developed based on simulations from a detailed full hydrodynamic model to reduce computation time for real-time flood control applications.
- The conceptual model was developed through identifying representative discharges, storage points, and hydraulic structures from the river network and calibrating it using a limited number of full model simulations.
- The performance of the conceptual model was evaluated against historical flood events and showed close agreement with the full model, enabling its use for real-time flood control applications requiring many model iterations.
This document summarizes a study that evaluated the behavior of the Gelabar Earth Dam in Iran during construction and first watering using numerical modeling and comparison with data from instruments installed on the dam. The study used the Plaxis software to model pore water pressure, stresses, and other parameters in two dimensions. Results from the numerical model were compared to measurements from piezometers, soil pressure instruments, and subsidence monitors to calibrate the model parameters. The study found generally good agreement between the model and instrument data, indicating the dam was behaving safely and as expected during initial filling.
This document outlines the syllabus for an irrigation and drainage engineering course over two semesters. The first semester covers open channel flow topics like channel types, flow types, uniform flow equations, Manning's coefficient, best hydraulic sections, rating curves, specific energy, critical flow and hydraulic jumps, and gradually varied flow. The second semester covers soil-water relationships, permeability, conveyance efficiency, infiltration, wells, drainage definitions and equations, and irrigation methods like sprinklers. References for the course include several textbooks on open channel hydraulics, irrigation engineering, drainage, and sprinkler irrigation. Assessment includes seminars, homework, quizzes, and attendance. Contact information is provided for the instructor.
The document describes calibrating and validating the parameters of the HEC-HMS hydrological model for the Kharkai River Basin in eastern India. The objectives are to calibrate parameters like initial loss, constant rate, impervious area, lag time and peaking coefficient that affect rainfall-runoff processes. The validated model is used to compute flood peaks and times to peak from rainfall events. Model performance is evaluated using statistical measures for the study area. Calibration results show the model can accurately predict peak flood volumes and times to peak, indicating HEC-HMS is suitable for modeling the Kharkai catchment.
Data Requirements for Groundwater ModellingC. P. Kumar
Groundwater modeling requires data on the physical and hydrological framework of the aquifer. The physical framework data defines the aquifer geometry and properties, including topography, geology, aquifer thickness and boundaries. The hydrological framework data describes the flow in and out of the aquifer, such as water table elevations, recharge and discharge rates and areas. Collecting these types of data from existing sources and monitoring programs is the first step of any groundwater modeling study.
Prediction of Flood Risk under the Impact of Climate Change on the Thermal Po...Tuu Nguyen
In Gangwon Province, the rainy season with an extremely high precipitation caused extreme flood event in the summer in 2006. A one dimensional (1D) hydraulic model was developed for mountainous river reaches located closely to the Yeongwol thermal power plant. Input data, including topographical data and river flow measured every 10 minutes from July 1st to September 30th, 2013 by Han River Flood Control Office (HRFCO), were imported to a 1D hydraulic model. The results were the simulated water levels, water discharges and average flow velocities at each cross-section. The simulated water levels in different years (including 2011, 2012 and 2014) were used to calibrate and validate the applied model. Climate change scenarios were estimated by referencing the climate change adaptation strategies of the Korean government and historical information about the extreme flood events.
DETERMINATION OF NET FLOWS INTO ALMATTI RESERVOIR FROM CWC GAUGE DATA AND RES...IAEME Publication
This paper presents the determination of net flows into Almatti reservoir from CWC data and reservoir data. From the study it can be concluded that the average flow in to Almatti will be 574.86 TMC, the maximum inflow will be 1196.8 TMC and the minimum flow will be 166.99 TMC. The flows in annual in deficit years may reduce by about 50 TMC but there is no variation in the good years in the good years as the storage effects will take care of this aspect during good years. It can be concluded that there will be reduction of flows in the June and July flows in the ultimate scenario except in very good years.
This document describes a procedure for developing a conceptual model of a river system for flood control purposes using a case study of the Demer River in Belgium. Key points:
- A conceptual model was developed based on simulations from a detailed full hydrodynamic model to reduce computation time for real-time flood control applications.
- The conceptual model was developed through identifying representative discharges, storage points, and hydraulic structures from the river network and calibrating it using a limited number of full model simulations.
- The performance of the conceptual model was evaluated against historical flood events and showed close agreement with the full model, enabling its use for real-time flood control applications requiring many model iterations.
This document summarizes a study that evaluated the behavior of the Gelabar Earth Dam in Iran during construction and first watering using numerical modeling and comparison with data from instruments installed on the dam. The study used the Plaxis software to model pore water pressure, stresses, and other parameters in two dimensions. Results from the numerical model were compared to measurements from piezometers, soil pressure instruments, and subsidence monitors to calibrate the model parameters. The study found generally good agreement between the model and instrument data, indicating the dam was behaving safely and as expected during initial filling.
This document outlines the syllabus for an irrigation and drainage engineering course over two semesters. The first semester covers open channel flow topics like channel types, flow types, uniform flow equations, Manning's coefficient, best hydraulic sections, rating curves, specific energy, critical flow and hydraulic jumps, and gradually varied flow. The second semester covers soil-water relationships, permeability, conveyance efficiency, infiltration, wells, drainage definitions and equations, and irrigation methods like sprinklers. References for the course include several textbooks on open channel hydraulics, irrigation engineering, drainage, and sprinkler irrigation. Assessment includes seminars, homework, quizzes, and attendance. Contact information is provided for the instructor.
The document describes calibrating and validating the parameters of the HEC-HMS hydrological model for the Kharkai River Basin in eastern India. The objectives are to calibrate parameters like initial loss, constant rate, impervious area, lag time and peaking coefficient that affect rainfall-runoff processes. The validated model is used to compute flood peaks and times to peak from rainfall events. Model performance is evaluated using statistical measures for the study area. Calibration results show the model can accurately predict peak flood volumes and times to peak, indicating HEC-HMS is suitable for modeling the Kharkai catchment.
Data Requirements for Groundwater ModellingC. P. Kumar
Groundwater modeling requires data on the physical and hydrological framework of the aquifer. The physical framework data defines the aquifer geometry and properties, including topography, geology, aquifer thickness and boundaries. The hydrological framework data describes the flow in and out of the aquifer, such as water table elevations, recharge and discharge rates and areas. Collecting these types of data from existing sources and monitoring programs is the first step of any groundwater modeling study.
This document describes using an artificial neural network (ANN) model to predict groundwater levels 30 days in the future near a public well field in Montville Township, New Jersey. The ANN model uses inputs like daily pumping rates, precipitation, and temperature. Analysis of historical data showed climatic factors influence water levels over short periods. The ANN was trained on data from 1999-2001 and accurately predicted water levels in testing and validation data, outperforming a linear regression model. A sensitivity analysis found initial water level and precipitation were the most important predictors of future water levels. The conclusions state ANNs can accurately predict water levels for areas with limited data and do not require expensive aquifer tests.
Groundwater models are simplified representation of large and real hydrogeologic systems like river basins or watersheds. GWM is attempted to analyse the mechanisms which control the occurrence and movement of groundwater and to evaluate the policies, actions and designs which may affect the systems. These models are less complex prototypes of complex hydrogeologic systems developed using spatially varying aquifer parameters, hydrologic properties, geologic boundary conditions and positions of withdrawal wells or recharging structures. These are designed to compute how pumping or recharge might affect the local or regional groundwater levels.
This document summarizes the implementation of a Real Time Simulation (RTS) model using HEC software for a large hydroelectric power project. Key aspects include:
1) The RTS model integrates HEC-HMS, HEC-ResSim, and HEC-RAS models to simulate rainfall-runoff, reservoir operations, and river stages in real-time using meteorological forecasts.
2) The project area includes a 1,640 square mile watershed with 9 power houses, 6 reservoirs, tunnels, and open channels modeled.
3) The RTS model runs automatically every 6 hours using 2 weeks of observed data and 1 week of forecasts to generate custom reports for reservoir operations decisions.
This document discusses applications of integrated surface water/groundwater modeling techniques using the GSFLOW model. It summarizes three case studies: 1) assessing the hydrologic impacts of a large urban development, 2) evaluating interactions between a municipal wellfield and nearby surface water features, and 3) determining linkages between groundwater recharge and surface water features. The case studies demonstrate how GSFLOW can be used as a practical tool to solve complex water resource management problems through integrated modeling of hydrologic and groundwater systems.
River flood modelling with mike 11 case of nzoia river (budalangi) in kenyaAlexander Decker
This document presents a study that uses the one-dimensional MIKE 11 hydrodynamic model to simulate flooding in the lower Nzoia River basin in Kenya. The study area focuses on the Budalangi floodplains. The objectives are to implement the MIKE 11 model for this river reach and investigate the 2008 Budalangi floods. The model is set up using surveyed river cross-section data and boundary conditions. Two scenarios are modeled - an intact dyke case and a breached dyke case. The results show that the 2008 flooding was mainly caused by dyke breach. The optimal computational time step and spatial step for model stability are found to be 1 minute and 500m, respectively.
This document provides an introduction and overview of groundwater modeling. It discusses why groundwater modeling is needed for effective groundwater management. It outlines the modeling process, including developing a conceptual model, selecting governing equations, model design, calibration, validation, and using the model for prediction. It describes different types of mathematical models, including analytical, finite difference, and finite element models. It emphasizes that a modeling protocol should establish the modeling purpose and ensure the conceptual model adequately represents the system behavior. The document stresses the importance of calibration, verification, and sensitivity analysis to evaluate a model's ability to reproduce measured conditions and the effects of uncertainty.
The document provides an overview of the update to the Northern Trinity/Woodbine Groundwater Availability Model (NTWO GAM) being conducted by Mullican & Associates for four groundwater conservation districts in Groundwater Management Area 8. Key points:
- The project aims to overhaul a critical modeling tool for the districts to aid in joint groundwater planning.
- It will address limitations in the existing NTWO GAM through expanding the calibration period to 2010, providing more accurate predictions at the county scale, and developing a new GAM compatible with the joint planning process.
- The work involves tasks such as conceptual model development, model construction, calibration, and documentation.
- Over 1,400 wells have been
Upstream Suburban Philadelphia Sub-Watershed Cluster Modeling OverviewKim Beidler
Upstream Suburban Philadelphia Sub-Watershed Cluster Modeling Overview by Jeffrey Featherstone, Ph.D., Director, Center for Sustainable Communities, Temple University
Runoff modelling using hec hms for rural watershedEditorIJAERD
This document summarizes a study that used the HEC-HMS hydrological model to simulate runoff in the rural Brandu River watershed in Buner District, Pakistan. The study area and available rainfall and flow data are described. Land use, soil type, sub-catchment delineation, and climatic factors like rainfall, temperature, and their variability are analyzed. Deficit and constant loss methods with Clark transform methods were selected in the HEC-HMS model. The calibrated model was validated using data from 1986-1988 and 2009-2013. The results showed that the HEC-HMS model can be used as a decision support tool for infrastructure design and operations in the watershed.
An integrated groundwater-surface water model was developed for the proposed Babcock Ranch development site in Lee County, Florida using the GSFLOW code. The model was calibrated to streamflow, groundwater levels, and wetland stage data. Model results showed that the proposed stormwater management system is expected to improve wetland hydroperiods and buffer peak flows compared to current and natural conditions. The calibrated integrated model provides a tool to evaluate the impacts of land development and climate change on the groundwater and surface water system.
This document discusses the use of numerical groundwater modeling to analyze dewatering for the Southeast Collector Trunk Sewer project in York Region. It summarizes how a MODFLOW model was developed using site geology and hydrogeology data to simulate baseline groundwater flow and potential impacts of tunnel construction dewatering. The model was calibrated against water level and streamflow observations and used to assess drawdown, pumping rates, and effects on nearby wells and baseflow to streams under normal and contingency construction scenarios.
This document discusses the need to account for spatial heterogeneity in topography when modeling distributed groundwater recharge and evapotranspiration. A lumped model assumes homogeneity, while semi-distributed and fully distributed models can account for variability related to factors like topography. The authors argue that considering topographic effects is important when assessing impacts to ecological systems through integrated surface water and groundwater models like GSFLOW, which can predict flows and recharge/discharge at various scales from climate to subsurface processes. Accounting for spatial variability provides greater insight into processes like wetland hydrology and groundwater-surface water interactions.
Hydrology and hydraulics for design designavirup naskar
This document provides an overview of hydrology and hydraulic considerations for bridge design. It discusses calculating design discharges using USGS reports, collecting channel and bridge characteristics through field surveys, performing hydraulic analysis using HEC-RAS software, meeting requirements of the National Flood Insurance Program, analyzing scour, and ODOT submittal requirements. The key steps involve estimating flood flows, modeling water surface profiles, evaluating flood risks and impacts, and designing protections against scour.
This document describes SiteFX and VIEWLOG software systems for environmental data management, hydrogeologic modeling, and integrated groundwater/surface water modeling using GSFLOW. The key capabilities mentioned include database management, data analysis and visualization tools, borehole logging, contour mapping, time series analysis, and integrated groundwater/surface water modeling to simulate processes like recharge, discharge, streamflow, and water table fluctuations.
This document discusses using the fully-integrated GSFLOW model to analyze the impact of low impact development (LID) strategies on surface water and groundwater flow. It presents a case study of a proposed urban development and evaluates the ability of LID strategies like green roofs, bioswales, infiltration galleries and permeable pavement to mitigate impacts to groundwater levels and discharge. The results show that with LID implementation, groundwater drawdowns were reduced by 86%, groundwater discharge to streams increased by 42%, and urban runoff generation was reduced by 80% compared to development without LIDs.
This document summarizes an integrated surface water and groundwater model developed for the MacKay River watershed in Alberta, Canada to assess cumulative effects of oil sands operations on water resources. The model was calibrated against streamflow and groundwater level observations over a 38-year period. Key features included a 400m groundwater grid, 200m surface hydrology grid, representation of geology, climate inputs, vegetation/wetlands, and frozen ground processes. The calibrated model will be used to simulate current and future conditions to evaluate sustainability.
- The document summarizes modeling work done in the Choptank Watershed using the Hydrologic Simulation Program – Fortran (HSPF) and Generalized Water Loading Function (GWLF) models previously, as well as new modeling approaches.
- The new approach uses high resolution multi-sensor precipitation estimates and a gridded, spatially-distributed hydrologic model called the Research Distributed Hydrologic Model (RDHM) to simulate runoff at a higher resolution.
- RDHM outputs will be used as inputs to the Hydraulic Engineering Center – River Analysis System (HEC-RAS) model to simulate flows and stages throughout the river network.
- The goals are to support fertil
El documento analiza la falta de inversión en el desarrollo científico y tecnológico en Colombia. Señala que Colombia debería invertir más en educación y ciencia como lo hizo Corea del Sur para lograr un desarrollo similar. El estudio encontró que los principales obstáculos son la falta de apoyo estatal y estrategias claras para otorgar fondos que impulsan la investigación y el desarrollo tecnológico en el país.
This document describes using an artificial neural network (ANN) model to predict groundwater levels 30 days in the future near a public well field in Montville Township, New Jersey. The ANN model uses inputs like daily pumping rates, precipitation, and temperature. Analysis of historical data showed climatic factors influence water levels over short periods. The ANN was trained on data from 1999-2001 and accurately predicted water levels in testing and validation data, outperforming a linear regression model. A sensitivity analysis found initial water level and precipitation were the most important predictors of future water levels. The conclusions state ANNs can accurately predict water levels for areas with limited data and do not require expensive aquifer tests.
Groundwater models are simplified representation of large and real hydrogeologic systems like river basins or watersheds. GWM is attempted to analyse the mechanisms which control the occurrence and movement of groundwater and to evaluate the policies, actions and designs which may affect the systems. These models are less complex prototypes of complex hydrogeologic systems developed using spatially varying aquifer parameters, hydrologic properties, geologic boundary conditions and positions of withdrawal wells or recharging structures. These are designed to compute how pumping or recharge might affect the local or regional groundwater levels.
This document summarizes the implementation of a Real Time Simulation (RTS) model using HEC software for a large hydroelectric power project. Key aspects include:
1) The RTS model integrates HEC-HMS, HEC-ResSim, and HEC-RAS models to simulate rainfall-runoff, reservoir operations, and river stages in real-time using meteorological forecasts.
2) The project area includes a 1,640 square mile watershed with 9 power houses, 6 reservoirs, tunnels, and open channels modeled.
3) The RTS model runs automatically every 6 hours using 2 weeks of observed data and 1 week of forecasts to generate custom reports for reservoir operations decisions.
This document discusses applications of integrated surface water/groundwater modeling techniques using the GSFLOW model. It summarizes three case studies: 1) assessing the hydrologic impacts of a large urban development, 2) evaluating interactions between a municipal wellfield and nearby surface water features, and 3) determining linkages between groundwater recharge and surface water features. The case studies demonstrate how GSFLOW can be used as a practical tool to solve complex water resource management problems through integrated modeling of hydrologic and groundwater systems.
River flood modelling with mike 11 case of nzoia river (budalangi) in kenyaAlexander Decker
This document presents a study that uses the one-dimensional MIKE 11 hydrodynamic model to simulate flooding in the lower Nzoia River basin in Kenya. The study area focuses on the Budalangi floodplains. The objectives are to implement the MIKE 11 model for this river reach and investigate the 2008 Budalangi floods. The model is set up using surveyed river cross-section data and boundary conditions. Two scenarios are modeled - an intact dyke case and a breached dyke case. The results show that the 2008 flooding was mainly caused by dyke breach. The optimal computational time step and spatial step for model stability are found to be 1 minute and 500m, respectively.
This document provides an introduction and overview of groundwater modeling. It discusses why groundwater modeling is needed for effective groundwater management. It outlines the modeling process, including developing a conceptual model, selecting governing equations, model design, calibration, validation, and using the model for prediction. It describes different types of mathematical models, including analytical, finite difference, and finite element models. It emphasizes that a modeling protocol should establish the modeling purpose and ensure the conceptual model adequately represents the system behavior. The document stresses the importance of calibration, verification, and sensitivity analysis to evaluate a model's ability to reproduce measured conditions and the effects of uncertainty.
The document provides an overview of the update to the Northern Trinity/Woodbine Groundwater Availability Model (NTWO GAM) being conducted by Mullican & Associates for four groundwater conservation districts in Groundwater Management Area 8. Key points:
- The project aims to overhaul a critical modeling tool for the districts to aid in joint groundwater planning.
- It will address limitations in the existing NTWO GAM through expanding the calibration period to 2010, providing more accurate predictions at the county scale, and developing a new GAM compatible with the joint planning process.
- The work involves tasks such as conceptual model development, model construction, calibration, and documentation.
- Over 1,400 wells have been
Upstream Suburban Philadelphia Sub-Watershed Cluster Modeling OverviewKim Beidler
Upstream Suburban Philadelphia Sub-Watershed Cluster Modeling Overview by Jeffrey Featherstone, Ph.D., Director, Center for Sustainable Communities, Temple University
Runoff modelling using hec hms for rural watershedEditorIJAERD
This document summarizes a study that used the HEC-HMS hydrological model to simulate runoff in the rural Brandu River watershed in Buner District, Pakistan. The study area and available rainfall and flow data are described. Land use, soil type, sub-catchment delineation, and climatic factors like rainfall, temperature, and their variability are analyzed. Deficit and constant loss methods with Clark transform methods were selected in the HEC-HMS model. The calibrated model was validated using data from 1986-1988 and 2009-2013. The results showed that the HEC-HMS model can be used as a decision support tool for infrastructure design and operations in the watershed.
An integrated groundwater-surface water model was developed for the proposed Babcock Ranch development site in Lee County, Florida using the GSFLOW code. The model was calibrated to streamflow, groundwater levels, and wetland stage data. Model results showed that the proposed stormwater management system is expected to improve wetland hydroperiods and buffer peak flows compared to current and natural conditions. The calibrated integrated model provides a tool to evaluate the impacts of land development and climate change on the groundwater and surface water system.
This document discusses the use of numerical groundwater modeling to analyze dewatering for the Southeast Collector Trunk Sewer project in York Region. It summarizes how a MODFLOW model was developed using site geology and hydrogeology data to simulate baseline groundwater flow and potential impacts of tunnel construction dewatering. The model was calibrated against water level and streamflow observations and used to assess drawdown, pumping rates, and effects on nearby wells and baseflow to streams under normal and contingency construction scenarios.
This document discusses the need to account for spatial heterogeneity in topography when modeling distributed groundwater recharge and evapotranspiration. A lumped model assumes homogeneity, while semi-distributed and fully distributed models can account for variability related to factors like topography. The authors argue that considering topographic effects is important when assessing impacts to ecological systems through integrated surface water and groundwater models like GSFLOW, which can predict flows and recharge/discharge at various scales from climate to subsurface processes. Accounting for spatial variability provides greater insight into processes like wetland hydrology and groundwater-surface water interactions.
Hydrology and hydraulics for design designavirup naskar
This document provides an overview of hydrology and hydraulic considerations for bridge design. It discusses calculating design discharges using USGS reports, collecting channel and bridge characteristics through field surveys, performing hydraulic analysis using HEC-RAS software, meeting requirements of the National Flood Insurance Program, analyzing scour, and ODOT submittal requirements. The key steps involve estimating flood flows, modeling water surface profiles, evaluating flood risks and impacts, and designing protections against scour.
This document describes SiteFX and VIEWLOG software systems for environmental data management, hydrogeologic modeling, and integrated groundwater/surface water modeling using GSFLOW. The key capabilities mentioned include database management, data analysis and visualization tools, borehole logging, contour mapping, time series analysis, and integrated groundwater/surface water modeling to simulate processes like recharge, discharge, streamflow, and water table fluctuations.
This document discusses using the fully-integrated GSFLOW model to analyze the impact of low impact development (LID) strategies on surface water and groundwater flow. It presents a case study of a proposed urban development and evaluates the ability of LID strategies like green roofs, bioswales, infiltration galleries and permeable pavement to mitigate impacts to groundwater levels and discharge. The results show that with LID implementation, groundwater drawdowns were reduced by 86%, groundwater discharge to streams increased by 42%, and urban runoff generation was reduced by 80% compared to development without LIDs.
This document summarizes an integrated surface water and groundwater model developed for the MacKay River watershed in Alberta, Canada to assess cumulative effects of oil sands operations on water resources. The model was calibrated against streamflow and groundwater level observations over a 38-year period. Key features included a 400m groundwater grid, 200m surface hydrology grid, representation of geology, climate inputs, vegetation/wetlands, and frozen ground processes. The calibrated model will be used to simulate current and future conditions to evaluate sustainability.
- The document summarizes modeling work done in the Choptank Watershed using the Hydrologic Simulation Program – Fortran (HSPF) and Generalized Water Loading Function (GWLF) models previously, as well as new modeling approaches.
- The new approach uses high resolution multi-sensor precipitation estimates and a gridded, spatially-distributed hydrologic model called the Research Distributed Hydrologic Model (RDHM) to simulate runoff at a higher resolution.
- RDHM outputs will be used as inputs to the Hydraulic Engineering Center – River Analysis System (HEC-RAS) model to simulate flows and stages throughout the river network.
- The goals are to support fertil
El documento analiza la falta de inversión en el desarrollo científico y tecnológico en Colombia. Señala que Colombia debería invertir más en educación y ciencia como lo hizo Corea del Sur para lograr un desarrollo similar. El estudio encontró que los principales obstáculos son la falta de apoyo estatal y estrategias claras para otorgar fondos que impulsan la investigación y el desarrollo tecnológico en el país.
Este documento describe la osteomielitis, una infección del hueso y la médula ósea causada por la inoculación de un microorganismo. Explica la fisiopatología, clasificación, diagnóstico y tratamiento de la osteomielitis aguda y crónica, incluyendo antibióticos, drenaje quirúrgico y desbridamiento óseo.
This document summarizes the turnaround of Roche Applied Science US from 2002 to mid-2006. Key points include:
- Custom business grew from shrinking to growing through partnerships, flexible structures, and workforce education/skills shifting. New custom business showed strong returns within a year.
- Service levels improved dramatically through better manufacturing planning, new metrics, and personnel changes, reducing stock-outs and impacted customers.
- Product and process quality improved as resources were freed up, reflected in higher first-pass acceptance rates.
- Gross margins improved through cost controls, automation, skills shifting, and spending controls despite shrinking volumes from some products. R&D performance and costs were brought to best-in-class levels
This document discusses regulatory, economic, physical, and competitive environments relevant for microfinance institutions. It notes that the regulatory environment includes factors like trade policy, monetary policy, fiscal policy, labor policies, and direct regulatory controls. The economic environment considers the wealth and inflation levels of a nation. The physical environment and other factors like social conditions and population density are also mentioned. Competitive factors include the stages of pre-competition and competition. Target markets for microfinance institutions are the unserved and underserved enterprises and households. Direct targeting of funds versus indirect targeting through product design is outlined.
Dokumen tersebut merangkum tentang teknik tenaga listrik, termasuk jenis-jenis pembangkit listrik seperti tenaga air, angin, uap dan nuklir. Juga dijelaskan tentang sumber tegangan listrik, arus listrik, dan komponen dasar seperti voltmeter, resistor, dan jembatan Wheatstone.
This document provides a resume for Sanmita M. Shetty seeking a position as a teacher. She has over 10 years of experience teaching pre-primary and primary students, as well as students with special needs. She has a Bachelor's degree in Special Education and Child Development. Her experience includes teaching at several schools and working as a special educator and counselor. She is proficient in curriculum development, lesson planning, assessment, and communication with parents. References are provided.
This document presents a mini project studying the water discharge rate and sediment transport in river systems at Hutan Rekreasi Sungai Tekala, Semenyih Selangor. Methodology includes measuring cross-sectional areas, water velocity, and collecting data samples. Results found the average water discharge is 2.5 cubic meters per second, highest in rainy season, and the average sediment transport is 100 tons per year, also highest in rainy season. Conclusions state this information can aid environmental management, and recommendations call for increased monitoring, developing flow models, and raising community awareness.
The document provides details of a study conducted on the management of floods in the urban environment of Bengaluru, India. It includes an abstract, introduction, problem statement, study area description, literature review, objectives and methodology, results and discussion, conclusion, and future work. The study analyzed hydrological parameters like rainfall and evapotranspiration to understand flood patterns. Land use, drainage characteristics, slope, and soil properties were examined using geospatial tools. Structural measures like subsurface drainage systems and stepped aprons were designed and evaluated.
journal of engineering and applied science 18.pdfnareshkotra
The International Journal of Mechanical Engineering Research and Technology is an international online journal in English published Quarterly offers a speed publication schedule with whilst maintaining rigorous peer review and the use of recommended electronic formats for article delivery of expedites the process of All submitted research articles are subjected to immediate rapid screening by the editors consultation with the Editorial Board or others working in the field as appropriate to ensure that they are as same as to be the level of interest and importance appropriate for the journal.
journal of applied science and engineering.pdfnareshkotra
The International Journal of Mechanical Engineering Research and Technology is an international online journal in English published Quarterly offers a fast publication schedule with maintaining rigorous peer review and the use of recommended electronic formats of article delivery expedites the process of All submitted research articles are subjected to immediate rapid screening by the editors consultation with the Editorial Board or others working in the field of appropriate to ensure that they are likely to be the level of interest and importance of appropriate for the journal.
Hydraulic Model Studies for Evaluating the Performance of Energy Dissipater’s...IRJET Journal
This document discusses a case study of hydraulic model studies conducted to evaluate the performance of an energy dissipater in the form of a curved stilling basin to protect the right bank of a river near a dam. A physical model was constructed at a scale of 1:70 to study the hydraulic parameters of the spillway design such as discharge capacity, water surface profiles, pressure distributions, and to finalize the design of the curved stilling basin energy dissipater. A literature review discussed previous studies on energy dissipation from spillways. The methodology of the study including collecting prototype data, model construction, installation of instrumentation, and conducting tests is described.
This document presents a case study of coupling surface water and groundwater models in the Netravathi river basin located in southern India. It summarizes the data collected and methodology used. Key data included a digital elevation model, soil data, land use/land cover maps, rainfall and weather data, hydrological data including streamflow, and groundwater levels. The methodology involved using SWAT to model surface water hydrology and estimate groundwater recharge, then coupling the SWAT outputs to a MODFLOW groundwater model to allow a more complete analysis of the regional hydrological system.
Climate Change Impacts on Reservoir based Hydropower Generation in Nepal: A c...Manjeet Dhakal
This result shows that winter is becoming dryer and rainy season is getting more and more rain that signifies essential need of reservoir based hydro powers also with greater water holding capacity in its reservoir. Similarly, there is temporal variation of different climate characteristics such as amount and intensity of rainfall, temperature and discharge in the river in study area. With the change in precepetatin pattern, Kulekhani in monsoon is receiving more rainfall on lesser number of days, this shows the chances of more sediment production in the watershed that lead to shorten lifespan of the reservoir.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
This document provides an overview of a presentation on MODFLOW given by Nisha Belbase and Prabin Banstola. It discusses the history and development of MODFLOW as a groundwater flow model developed by the USGS. It then describes key aspects of MODFLOW including its governing equations, inputs, outputs, versions, advantages, and disadvantages. Finally, it provides examples of MODFLOW being used for numerical modeling of groundwater in the Kathmandu Valley in Nepal.
THE APPLICATION OF MATHEMATICAL MODELS IN MANAGEMENT OF AQUIFERAnonymouslVQ83F8mC
Before feeling water -shortage crisis human has understood the importance of water From the
religious texts. Considering recent conditions of the world the water will replace most recent
boundaries, at future. Imamzadeh Jaafar plain is located 5 kilometers northeast of Gachsaran, south
of Kohgilooye and Boerahmad province. The plain has 61km 2 area extents and contains two,
alluvial and carbonate aquifers. These aquifers supply the water needs, agricultural, industrial and
domestic. Highly exploitation and transportation of groundwater resources, especially by National Oil
Company, caused highly drawdown in alluvial aquifer, 1.85m in a 5 years period from 1361 to
1365 as reported by Mahab Ghods Consulting Engineers. There are two artificial recharge
projects, 1 flood spreading system and 1 recharge ponds system, in the plain. To present the future
water resources management program the hydrogeological behaviors of the alluvial aquifer and the
effects of artificial recharge must be evaluated. edrock, hydrodynamic coefficients, topography, water
resources and were collected, field surveys were performed and required maps were prepared. Using
conceptual model and MODFLOW PMWIN code the mathematical model of the plain was
calibrated against water year 1380 -81 and then verified against water year 1384 - 85. The verified
model was used to predict future conditions of aquifer. The results implied the rapid response of
aquifer to precipitation due to high aquifer ransmissivity, positive water budget at year 1385
comparing year 65, change of direction of groundwater flow from plain outlet to the center of
plain in response to highly exploitation at the center of plain, water level in the wells located
downward the flood spreading system will raise as 1 to 6m and water level in t he wells located
downward the recharge pond system will lower as 1 to 4m.
THE APPLICATION OF MATHEMATICAL MODELS IN MANAGEMENT OF AQUIFERamsjournal
Before feeling water -shortage crisis human has understood the importance of water From the
religious texts. Considering recent conditions of the world the water will replace most recent
boundaries, at future. Imamzadeh Jaafar plain is located 5 kilometers northeast of Gachsaran, south
of Kohgilooye and Boerahmad province. The plain has 61km 2 area extents and contains two,
alluvial and carbonate aquifers. These aquifers supply the water needs, agricultural, industrial and
domestic. Highly exploitation and transportation of groundwater resources, especially by National Oil
Company, caused highly drawdown in alluvial aquifer, 1.85m in a 5 years period from 1361 to
1365 as reported by Mahab Ghods Consulting Engineers. There are two artificial recharge
projects, 1 flood spreading system and 1 recharge ponds system, in the plain. To present the future
water resources management program the hydrogeological behaviors of the alluvial aquifer and the
effects of artificial recharge must be evaluated. edrock, hydrodynamic coefficients, topography, water
resources and were collected, field surveys were performed and required maps were prepared. Using
conceptual model and MODFLOW PMWIN code the mathematical model of the plain was
calibrated against water year 1380 -81 and then verified against water year 1384 - 85. The verified
model was used to predict future conditions of aquifer. The results implied the rapid response of
aquifer to precipitation due to high aquifer ransmissivity, positive water budget at year 1385
comparing year 65, change of direction of groundwater flow from plain outlet to the center of
plain in response to highly exploitation at the center of plain, water level in the wells located
downward the flood spreading system will raise as 1 to 6m and water level in t he wells located
downward the recharge pond system will lower as 1 to 4m.
THE APPLICATION OF MATHEMATICAL MODELS IN MANAGEMENT OF AQUIFERamsjournal1
Before feeling water -shortage crisis human has understood the importance of water From the
religious texts. Considering recent conditions of the world the water will replace most recent
boundaries, at future. Imamzadeh Jaafar plain is located 5 kilometers northeast of Gachsaran, south
of Kohgilooye and Boerahmad province. The plain has 61km 2 area extents and contains two,
alluvial and carbonate aquifers. These aquifers supply the water needs, agricultural, industrial and
domestic. Highly exploitation and transportation of groundwater resources, especially by National Oil
Company, caused highly drawdown in alluvial aquifer, 1.85m in a 5 years period from 1361 to
1365 as reported by Mahab Ghods Consulting Engineers. There are two artificial recharge
projects, 1 flood spreading system and 1 recharge ponds system, in the plain. To present the future
water resources management program the hydrogeological behaviors of the alluvial aquifer and the
effects of artificial recharge must be evaluated. edrock, hydrodynamic coefficients, topography, water
resources and were collected, field surveys were performed and required maps were prepared. Using
conceptual model and MODFLOW PMWIN code the mathematical model of the plain was
calibrated against water year 1380 -81 and then verified against water year 1384 - 85. The verified
model was used to predict future conditions of aquifer. The results implied the rapid response of
aquifer to precipitation due to high aquifer ransmissivity, positive water budget at year 1385
comparing year 65, change of direction of groundwater flow from plain outlet to the center of
plain in response to highly exploitation at the center of plain, water level in the wells located
downward the flood spreading system will raise as 1 to 6m and water level in t he wells located
downward the recharge pond system will lower as 1 to 4m.
THE APPLICATION OF MATHEMATICAL MODELS IN MANAGEMENT OF AQUIFERpijans
Before feeling water -shortage crisis human has understood the importance of water From the
religious texts. Considering recent conditions of the world the water will replace most recent
boundaries, at future. Imamzadeh Jaafar plain is located 5 kilometers northeast of Gachsaran, south
of Kohgilooye and Boerahmad province. The plain has 61km 2 area extents and contains two,
alluvial and carbonate aquifers. These aquifers supply the water needs, agricultural, industrial and
domestic. Highly exploitation and transportation of groundwater resources, especially by National Oil
Company, caused highly drawdown in alluvial aquifer, 1.85m in a 5 years period from 1361 to
1365 as reported by Mahab Ghods Consulting Engineers. There are two artificial recharge
projects, 1 flood spreading system and 1 recharge ponds system, in the plain. To present the future
water resources management program the hydrogeological behaviors of the alluvial aquifer and the effects of artificial recharge must be evaluated. edrock, hydrodynamic coefficients, topography, water resources and were collected, field surveys were performed and required maps were prepared. Using
conceptual model and MODFLOW PMWIN code the mathematical model of the plain was calibrated against water year 1380 -81 and then verified against water year 1384 - 85. The verified model was used to predict future conditions of aquifer. The results implied the rapid response of
aquifer to precipitation due to high aquifer ransmissivity, positive water budget at year 1385 comparing year 65, change of direction of groundwater flow from plain outlet to the center of
plain in response to highly exploitation at the center of plain, water level in the wells located downward the flood spreading system will raise as 1 to 6m and water level in t he wells located
downward the recharge pond system will lower as 1 to 4m.
THE APPLICATION OF MATHEMATICAL MODELS IN MANAGEMENT OF AQUIFERpijans
Before feeling water -shortage crisis human has understood the importance of water From the
religious texts. Considering recent conditions of the world the water will replace most recent
boundaries, at future. Imamzadeh Jaafar plain is located 5 kilometers northeast of Gachsaran, south
of Kohgilooye and Boerahmad province. The plain has 61km 2 area extents and contains two,
alluvial and carbonate aquifers. These aquifers supply the water needs, agricultural, industrial and
domestic. Highly exploitation and transportation of groundwater resources, especially by National Oil
Company, caused highly drawdown in alluvial aquifer, 1.85m in a 5 years period from 1361 to
1365 as reported by Mahab Ghods Consulting Engineers. There are two artificial recharge
projects, 1 flood spreading system and 1 recharge ponds system, in the plain. To present the future
water resources management program the hydrogeological behaviors of the alluvial aquifer and the
effects of artificial recharge must be evaluated. edrock, hydrodynamic coefficients, topography, water
resources and were collected, field surveys were performed and required maps were prepared. Using
conceptual model and MODFLOW PMWIN code the mathematical model of the plain was
calibrated against water year 1380 -81 and then verified against water year 1384 - 85. The verified
model was used to predict future conditions of aquifer. The results implied the rapid response of
aquifer to precipitation due to high aquifer ransmissivity, positive water budget at year 1385
comparing year 65, change of direction of groundwater flow from plain outlet to the center of
plain in response to highly exploitation at the center of plain, water level in the wells located
downward the flood spreading system will raise as 1 to 6m and water level in t he wells located
downward the recharge pond system will lower as 1 to 4m.
THE APPLICATION OF MATHEMATICAL MODELS IN MANAGEMENT OF AQUIFERpijans
Groundwater models are often developed to obtain predictions of societal importance. Such
predictions might be the response of an aquifer to future groundwater pumping, or the
groundwater transport of contaminants from a source location. Because the groundwater flow
system characteristics represented in such models are always unknown to some degree, model
predictions are uncertain. To reduce this prediction uncertainty, it is necessary to improve the
model so that it more accurately represents the flow system
ANALYSIS OF WATER LOGGING AT SJCET CAMPUS AND ITS REMEDIAL MEASURESIRJET Journal
The document analyzes water logging issues at SJCET campus in Kerala, India. It discusses collecting data on rainfall and soil infiltration rates. The existing drainage system and rainwater harvesting system are studied. Issues identified include inadequate drainage, low soil infiltration rates, and insufficient capacity of the drainage system. The document proposes remedial measures to address water logging such as improving drainage schemes, adding deep drains, excavating new channels, and enhancing the existing drainage system and rainwater harvesting system. The overall goal is to develop a modern drainage system to reduce water logging on campus.
Storm Water Drain Network System in Bengaluru IRJET Journal
This document summarizes a study analyzing the storm water drainage network in Bengaluru, India. The study finds that rapid urban development has altered natural drainage systems and increased surface runoff. This has overwhelmed existing storm drains, leading to flooding. The study uses modeling software to analyze flow quantities and velocities in drains, finding most are prone to failure from excess capacity, erosion, or sediment deposition. It recommends redesigning drains to address these issues and prevent further flooding from extreme rain events.
DSD-INT 2022 Modelling the impact of dam operation on flood management using ...Deltares
Presentation by Pavan Kumar Yeditha (IHE, Netherlands), at the Delft3D User Days, during Delft Software Days - Edition 2022. Tuesday, 15 November 2022.
A REVIEW ON RESERVOIR SEDIMENTATION STUDIES USING SATELLITE REMOTE SENSING TE...ijiert bestjournal
Sedimentation in the reservoir gradually reduces it s storage capacity. By keeping a check on the sedimentation and by providing control measures for the same,the reservoir life can be maintained. Uj jani dam was constructed for irrigation,water supply an d power generation schemes. It lies in Solapur dist rict which is a drought prone area. This makes Ujjani a socially and economically significant project for t he state. In the present study,reservoir sedimentatio n for Ujjani reservoir is assessed for monitoring p urpose. Two techniques namely Satellite Remote Sensing Tech nique (SRST) and mathematical modeling using HEC RAS,were used in the study for estimating sedi mentation. Owing to advantages like low cost,time saving,less manpower requirement,accuracy in esti mation and capability of carrying out past surveys,the Satellite Remote Sensing Technique is gaining impor tance over the time consuming and high cost conventional hydrographic surveys. The water spread areas for different reservoir levels were delineat ed from the satellite images of Ujjain Reservoir using ARC GIS software. Volume between two water levels was calculated using prismoidul formula. The presen t volume of reservoir was compared with the initial volume during impoundment of reservoir. This gave t he loss of volume which was due to sedimentation.
Climate change impact assessment on hydrology on river basinsAbhiram Kanigolla
The document discusses applying remote sensing and GIS techniques to assess the impacts of climate change on hydrology in river basins. It describes using the SWAT hydrological model to simulate the water balance of the Krishna River basin in India under current and future climate scenarios from regional climate models. Key steps involved gathering spatial data on terrain, land use and soils, calibrating and validating SWAT using historical weather data, and running the model for control and climate change scenarios to analyze changes in stream flows, runoff and groundwater. The results show increases in annual discharge and surface runoff in the basin in future climate scenarios.