Global Energy and Water Cycle Experiment

1. Models Observations Products Global Energy and Water Cycle Experiment GOES User’s Conference Climate & Hydrology Applications Dr. Paul D. Try, Director International GEWEX Project Office

2. WV Flux Precipitation Evaporation Runoff Storage Energy and Water Cycle OBJECTIVES  Determine the Hydrological Cycle by Global Measurements  Model the Hydrological Cycle and its Effects  Predict Response to Environmental Change  Improve Observing Techniques and Data Assimilation Systems

3. PRIMARY FOCUS Role of Energy and Water in Climate Cooling Warming Water Clouds Vapor Aerosols Precipitation BRIDGING MULTISCALE GAP Evaporation INTEGRATING DISCIPLINES Cooling Warming

4. COMPONENTS GEWEX Continental-Scale Hydrometeorology Projects GCIP/GAPP LBA BALTEX GAME MAGS Surface Radiation Budget Project (SRB) Baseline Surface Radiation Network (BSRN) Role of Energy and Water in Climate Cooling Warming International Clouds Water * Satellite Cloud GEWEX Aerosols Climatology Project Vapor (ISCCP) Water Vapor Project GEWEX Cloud System Studies (GCSS) (GVaP) Global Precipitation Climatology Precipitation Project (GPCP) Evaporation Global Runoff Data Biogeochemistry Center (GRDC) Cooling Warming Land Surface Modeling / Data Projects * GACP - Global Aerosol Climo Project GLASS ISLSCP (PILPS/GSWP)

5. GEO/LEO VALUE ADDED PRODUCTION! ISCCP Merged into Global Datasets SRB CD-ROM GVaP Individual Sensors + RAOBS Sfc/Space ISLSCP + GAUGES GPCP PHYSICAL- BIOGEOPHYSICAL SCIENCES

6. GLOBAL DATA SETS New Satellite Launches 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 C1 and C2 ISCCP (Clouds) D1 and DX ISCCP 2 SRB (Radiation) Version 1.1 Version 2 GVAP (Water Vapor) NVAP GVAP GPCP (Precipitation) Version 2 ISLSCP (Land-Surface) Initiative I Initiative II III GACP (Aerosols) GACP *Hatched lines represent planned data sets

7. ISCCP PRODUCTS ISCCP Products Reanalyzed 17 yr data set ‘83 - ‘99 (0.5x0.5 deg) by Fall ‘01

8. ISCCP Addresses IPCC Climate Issue Global Aerosol Indirect Effect Large albedo increases over oceans -- little over land

9. Surface Radiation Budget (SRB) Project GEWEX SW Downwelling Radiation June 1992 • 17 yr ‘83-99 • SW & LW 1X1 deg 3hr/d/mo planned by late ’01 • Preliminary ‘85-88 CD ROM SW (only) available for 2.5X2.5 deg mnthly • Based on ISCCP input -- biomass burning corrections and validation (GEBA/BSRN) data included -- uncorrected & corrected fields planned

10. New SRB Ver 2 : 1x1o SW/LW Data Sets SW Downward Surface Fluxes SW Cloud Radiative Forcing October 11, 1986 @ 1800Z [ 1x1o, 3 hrly Data ] LW Downward Surface Fluxes LW Cloud Radiative Forcing

11. Global Precipitation Climatology Project 20 year pattern of global precipitation LAND OCEAN Three new GPCP products : -- 20 year monthly (2.5x2.5) -- 20 year Pentad (5 dy) ( shows MJO ) -- 1x1 degree daily since ‘97 TOTAL

12. GPCP New 20+ yr Monthly Product GPCP 1979 - Present shows interannual variability in tropical regions -- El Nino Events

13. GPCP New 20+ yr Pentad (5dy) Product Monthly Pentad GPCP Pentad data in tropical regions -- shows Madden-Julian Oscillation (MJO) Events [ Ref: P. Xie, NWS/NCEP/CPC ]

14. New 1x1 Degree GPCP daily Product GPCP Daily 1x1 degree images of Hurricane Mitch Daily Image legend

15. PERSIANN System for Hydrological Applications Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks [ Rainfall accumulation for 6 hrly, daily, 5 day and monthly ] Monthly 1x1 degree from 30 min 0.25 degree GOES-IR data

16. PERSIANN System for Hydrological Applications Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks GOES Input

17. Water Vapor Applications Water Vapor Transport Index Global UTH @ 6.7 By EUMETSAT

18. GPCP Results Support IPCC “... climate change will lead to an intensification of the global hydrological cycle and can have major impacts on regional water resources”. ‘95 IPCC -- Global Distribution of Observed Moisture Recycling Using GPCP & TOVS Pathfinder (also GVaP) data sets! [Ref: Chahine et al , 1997] Zonal Average Recycling Rate per Month

19. ISLSCPCD ROM 2 yr 1x1 deg “coregistered” data sets 10+ yr data set (87-96) planned for ‘02

20. Continental-Scale Experiments (CSEs) Tundra Rain Forest “CATCH” Semi-arid

21. Large-Scale Biosphere-Atmosphere Experimentsin Amazonia (LBA)

22. Regional CSE GOES Applications ( direct from www page for LBA ) WET AMC Campaign - LBA 99 Meteorological Satellites Applications Group - CPTEC/INPE Goes 8 Imagery Regions: Amazon and Experiment 99 field. Images for visible channel (VIS, #1), water vapour channel (WV, #3), thermal infrared (IR, #4) and composed (RGB coloured, channels 1+4). Winds over South America Routine product at CPTEC, based on GOES 8 imagery (channels IR and WV). Wind vectors Solar radiation Daily solar irradiation fields over Experiment area.

23. CONTINENTAL SCALEEXPERIMENTS New Satellite Launches 1996 1997 1999 2000 2002 2003 1998 2001 LSA-SW Coordinated Enhanced Observing Period (CEOP) LSA-NC GEWEX Continental Scale Experiment (GCIP) LSA-East LSA-NW Large-Scale Area (LSA) GAPP Mackenzie GEWEX Study (MAGS) CAGES MAGS II BRIDGE Baltic Sea Experiment (BALTEX) GAME-Tropics GAME-Subtropics GAME Phase II CEOP Asian Monsoon Project GEWEX Asian Monsoon Experiment (GAME) GAME-Tibet GAME-Siberia LBA Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA)

24. TERRA MAGS AQUA BALTEX TRMM GCIP GAME LBA ADEOS II ENVISAT “ Coordinated - EOP ” (CEOP) [ Enhanced Observational Period - 2001-2003 ] Impacts All of GEWEX > Global data sets > CSEs & Process studies > Modelling > Intra/Inter GEWEX/WCRP To address the influence of continental hydroclimate processes on the predictability of global atmospheric circulation and changes in water resources -- with particular focus on the heat source and sink regions .

25. CEOP Satellite Exploitation

26. Global Perspective Model Globally for Prediction Observe & Understand Apply Locally Local/Regional GEWEX CSEs