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DSD-INT 2017 Application of the SPHY model for the Ganga basin and integration in WFlow / Delft-FEWS - Lutz
The document discusses the application of the Spatial Processes in Hydrology (SPHY) model for the Ganga River Basin in India, highlighting its use for strategic basin planning and climate impact research. It details the objectives, methodologies, and stakeholder engagement involved in the project, alongside calibration and validation results for the model. The SPHY model is intended to improve river health and economic productivity through enhanced water resource management and accessibility to information.
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DSD-INT 2017 Application of the SPHY model for the Ganga basin and integration in WFlow / Delft-FEWS - Lutz
- 1. Application of theSPHY model for the Ganga basin and integration in WFlow / Delft-FEWS Arthur Lutz Delft, 24 October 2017
- 2. > Research andconsultancy for a sustainable future of our water resources > Offices: Wageningen (Netherlands), Cartagena (Spain): 12 staff members > Partners/Clients: World Bank, Asian Development Bank, Governments, River Basin Organizations, Research Entities > Geographical focus: Europe, Asia, Africa > Outputs: technical reports, policy reports, scientific publications, training, datasets, models, operational services About FutureWater
- 3. Expertise www.futurewater.eu: all projects,reports, papers
- 4. Spatial Processes inHydrology (SPHY) model > High-resolution raster based fully distributed cryospheric-hydrological model > Includes all major hydrological and cryospheric processes > Developed by FutureWater, available in public domain ─ www.sphy-model.org, GitHub: (github.com/FutureWater/SPHY) ─ Documentation, software, tutorials > PCRaster/Python framework > Graphical User Interface for open source QGIS
- 5. > Full detailsand documentation: > www.sphy-model.org > Open access journal paper: Spatial Processes in Hydrology (SPHY) model
- 6. > Strategic planning,operational services > Applications worldwide ─ Asia, Africa, but also in The Netherlands > Two quick examples ─ Climate Change impacts for high-mountain hydrology IDRC: Himalayan Adaptation, Water and Resilience (HI-AWARE) Research ICIMOD: Himalayan Climate Change Adaptation Programme (HICAP) ADB: Water and Adaptation in Central Asia ─ Soil moisture monitoring/forecasting Province of Brabant, Waterboards, Dutch National Institute for Public Health and the Environment (RIVM), GD Animal Health SPHY applications
- 7. Climate change impact:RCP8.5 2050 Lutz et al., 2014, Nature Climate Change
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- 10. Strategic Basin PlanningGanga River Basin
- 11. > Analytical Workand Technical Assistance to support Strategic Basin Planning for Ganga River Basin in India > Client: Central Water Commission / World Bank > Consortium: Deltares, AECOM, FutureWater > Objectives: ─ Strengthen the capability of central and state government agencies to undertake strategic basin planning ─ develop plausible scenarios that improve the health of the river and maintain an acceptable level of economic productivity ─ accessible information and knowledge base to facilitate dialogue around and management of the Ganga River basin ─ multi-stakeholder engagement to support strategic basin planning The project
- 12. > How: ─ Developinga detailed and robust water resources planning model for the entire Ganga basin in India and training central and state government engineers and planners in its use ─ Characterizing and analysing surface-groundwater interactions ─ A multi-scale environmental flow assessment ─ Developing, modelling and disseminating a series of plausible scenarios that explore alternative options for improving water management including improving river health ─ Establishing and facilitating a multi-stakeholder consultation process (inside and outside of government) to guide and share the work above ─ Ensuring wide access to the models and analyses and quality documentation of these The project
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- 17. SPHY setup > 1x 1 km spatial resolution > Daily time step > 1958-2014 > Elevation: HydroSheds > Soil: HiHydroSoil > Glaciers: Randolph Glacier Inventory > Land use: Globcover
- 18. Meteorological forcing > 1958-1978:EU-WATCH > 1979-2014: WATCH Forcing ERA-Interim (WFDEI) > IMD Precipitation data similar to WFDEI, Temperature data large biases WFDEI APHRODITE WATCH ERA-INTERIM Upper Ganga 1482 995 1409 1704 Lower Ganga 1130 964 1113 1106
- 19. Calibration/validation to observeddischarge Model calibration and validation to observed discharge: ─ 2 locations in India (CWC) ─ 2 locations in the Koshi basin, Nepal (DHM) Calibration Validation
- 20. Calibration/Validation to observeddischarge Model calibration and validation to observed discharge: ─ 2 locations in India (CWC) ─ 2 locations in the Koshi basin, Nepal (DHM) Location Cali/Vali Period NSE R2 Pbias Nepal C 1998-2007 0.92 0.94 2.7% Nepal V 1998-2007 0.87 0.89 9.2% India C 1986-2010 0.83 0.84 -6.1% India V 1986-2010 0.85 0.87 -12.5%
- 21. Calibration/Validation to observeddischarge > In general good performance for mountainous basin ─ In some locations difficulties in simulating peaks or low flows ─ Interannual variation difficult
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