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The Global Water System Project (GWSP)

The Global Water System Project (GWSP). Summary of Current Status Dennis P. Lettenmaier for GEWEX Hydrometeorology Panel Luneburg, Germany September 25, 2003. Global Water System Project IGBP – IHDP – WCRP - Diversitas. Definition :

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The Global Water System Project (GWSP)

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  1. The Global Water System Project (GWSP) Summary of Current Status Dennis P. Lettenmaier for GEWEX Hydrometeorology Panel Luneburg, Germany September 25, 2003

  2. Global Water System Project IGBP – IHDP – WCRP - Diversitas Definition: The Global Water System (GWS) is defined as the suite of physical, chemical, biological, and human components [of the global water cycle] and their interactions Rational: Humans have begun to affect the Global Water System significantly without adequate understanding of how the system works Mission: Improve knowledge of, andresponsible interaction with, the Global Water System e.g. global observation consolidation of global data sets predictive and coupled modelling

  3. Global Water System Project IGBP – IHDP – WCRP - Diversitas Central Tenet: Human-induced changes to the Global Water System are now globally significant and are being modified without adequate understanding of how the system works

  4. Global Water Project System IGBP – IHDP – WCRP - Diversitas

  5. Global Water System Project IGBP – IHDP – WCRP - Diversitas global signature of changing water cycle ?

  6. Global Water System Project IGBP – IHDP – WCRP - Diversitas Science questions I. What are the magnitudes of anthropogenic and environmental changes in the Global Water System and what are the key mechanisms by which they are induced? • What are the main linkages and feedbacks within the Earth system arising from a changing Global Water System? • How resilient and adaptable is the Global Water System to change, and what are sustainable management strategies?

  7. Joint Water Project IGBP – IHDP – WCRP - Diversitas Building blocks from the GEC programmes:

  8. Global Water System Project IGBP – IHDP – WCRP - Diversitas Global assessment of water scarcity Crisis of Global Water Resources in 2025: Climate or Population Growth Vörösmarty, 2000

  9. Global Water System Project IGBP – IHDP – WCRP - Diversitas Human modification of hydrological systems

  10. Global Water System Project IGBP – IHDP – WCRP - Diversitas

  11. Global Water System Project IGBP – IHDP – WCRP - Diversitas Riverine carbon fluxes Ludwig 1996

  12. Global Water System Project IGBP – IHDP – WCRP - Diversitas • Scoping team meetings: • January, 2002 Reading (initial meeting) • May, 2002 Paris (Scoping document finalized) • January 2003, Bethesda MD (Scientific framework initialized) • March 2003, Kyoto • May 2003, Amsterdam • October 2003, Portsmouth, NH (Open Science Conference) Scoping team: WCRP (2), IGBP (2), IHDP (2), Diversitas (1) • Post-OSC • Scientific Framework to be finalized • Chairs and Directors to appoint SSG?

  13. Global Water System Project IGBP – IHDP – WCRP - Diversitas • References: • Scoping Document: http://www.gwsp.org/ • Draft Scientific Framework: http://www.gwsp.org/ • Open Science Conference: http://gwsposc.sr.unh.edu/

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