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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) 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: 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
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
Global Water Project System IGBP – IHDP – WCRP - Diversitas
Global Water System Project IGBP – IHDP – WCRP - Diversitas global signature of changing water cycle ?
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?
Joint Water Project IGBP – IHDP – WCRP - Diversitas Building blocks from the GEC programmes:
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
Global Water System Project IGBP – IHDP – WCRP - Diversitas Human modification of hydrological systems
Global Water System Project IGBP – IHDP – WCRP - Diversitas
Global Water System Project IGBP – IHDP – WCRP - Diversitas Riverine carbon fluxes Ludwig 1996
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?
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/