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GEWEX, needs of the water cycle modeling community and SWOT

GEWEX, needs of the water cycle modeling community and SWOT. Presentation for SWOT Workshop, September 15-17, 2008, The Ohio State University, Columbus Ohio. Peter van Oevelen (Eric Wood). Outline. GEWEX structure Introduction: where, what, why, how etc.

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GEWEX, needs of the water cycle modeling community and SWOT

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  1. GEWEX, needs of the water cycle modeling community and SWOT Presentation for SWOT Workshop, September 15-17, 2008, The Ohio State University, Columbus Ohio Peter van Oevelen (Eric Wood)

  2. Outline • GEWEX structure • Introduction: where, what, why, how etc. • Rationale for SWOT and links to GEWEX’s Panels and activities • Other international bodies to be considered

  3. The Tools GEWEX achieves its goals through data set development and analysis, process studies and model improvement

  4. GEWEX Regional Data Sets PANELS Working Groups And Projects Data projects and centers under the GEWEX umbrella Related information can be found at: http://www.gewex.org

  5. Some of the Rationale • Global Data Sets of surface water (rivers and lakes) level data • By itself useful for monitoring purposes e.g. flood mapping, lake storage etc. • Contribution to the Global Runoff Data Centre global discharge data sets • Counter measure against diminishing numbers of run-off gauges • Closure of regional and global water budgets • Evaluation/Verification of Hydrological Models – output • Calibration of Hydrological Models • Input to Hydraulic Models • River and lake information for Ungauged Basins

  6. GRP – GEWEX Radiation Panel • Land Flux Initiative: • Global data sets of turbulent fluxes over land (LE, SM, etc.) • Follow-up to ISLSCP (International Satellite Land Surface Climatology Program) • GRP aims at long term data sets with strict data quality control • Both integrated and single sensor data sets

  7. CEOP • GRDC – Global Runoff Data Center (Affiliated with GEWEX-CEOP) • Regional Data Sets • Regional Hydroclimate Projects (Former CSE’s) • Hydrological Applications Project • Hydrological Test beds • CEOP Cross-cutting activities: • Monsoons, High Elevation, Modelling, Water and Energy Budget Studies

  8. GMPP • GMPP is GEWEX Model Development Panel • New land surface schemes and parameterizations based upon ‘new’ type of data • Assimilation procedures • At what scales will SWOT data be most useful and applicable -> which models (local hydrological models to NWP)

  9. GCOS Terrestrial Climate variables • River discharge, Water use, Ground water, Lake levels, • Snow cover, Glaciers and ice caps, Permafrost and seasonally-frozen ground, • Albedo, Land cover (including vegetation type), Fraction of absorbed photosynthetically active radiation (fAPAR), Leaf area index (LAI), Biomass, Fire disturbance, • Soil moisture[Emerging].

  10. Other Obvious International Links • GTN-H: Global Terrestrial Network – Hydrology • GWSP : Global Water Systems Project as part of the Earth System Science Partnership (ESSP) • UNESCO-IHP and PUB • GEO and its GEOSS • …

  11. SWOT needs a higher profile in international programs to help provide visibility for the mission.

  12. Thank You

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