1. The Climate and the Human Activities The Climate and the Human Activities Natural Variations of the Water Cycle Natural Variations of the Water Cycle Water Crisis in the 21 st Century Water Crisis in the 21 st Century The Human Impacts on the Water Cycle: The Human Impacts on the Water Cycle: Land Use Changes Land Use Changes Green House Gas Emission and Green House Gas Emission and Possible Changes in Extreme Events Possible Changes in Extreme Events Large Uncertainties Large Uncertainties An Intl. Water Cycle Research Initiative An Intl. Water Cycle Research Initiative 1

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3. CEOP EOP-1 METEOROLOGICAL PARAMETERS 3

4. Three types model outputs are offered by NWPCs Mdel Output Location Time Series (MOLTS) at the reference sites: high temporal resolution time-series output Gridded Output from operational global and regional prediction models Output from global and regional reanalysis Several Numerical Weather Prediction Centers (NWPCs), JMA, UK Met Office, NCEP, BoM, NASA/DAO, ECMWF, and ICMWF, provide model outputs to CEOP, and CEOP offers a globally consistent data sets for model validation and calibration. 4

5. Considering the launching Schedule of the New Satellites 5

6. New Data sets of the Entire Water Cycle by Integrating the New Generation Satellite Products 6

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