UNESCO IHP, IGRAC and GWSP Project 
Groundwater Resources Assessment under the Pressures of Humanity and Climate Change (GRAPHIC)
| Top | Subjects | Methods | Regions | Summary | Member | Meeting | Link | Bibliography |
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| UNESCO IHP, IGRAC and GWSP Project Groundwater Resources Assessment under the Pressures of Humanity and Climate Change (GRAPHIC) |
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| Methods | ||||
| (1) Database and monitoring |  |
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| (2) Gravity recovery and climate experiment (GRACE) | ||||
| (3) Modeling and numerical simulation | ||||
| (4) Proxy data (paleohydrology) | ||||
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| Method 1 : Database and monitoring | |
| We are going to sort out the dates of existing databases such as the IGRAC database, based on the subjects (recharge, discharge, storage, etc.). In addition to these data bases, we are going to make (or nominate) some groundwater “Observatories” to monitor the changes in groundwater environments. CUAHSI (Consortium of Universities for the Advancement of Hydrologic Sciences, Inc.) may be one of the candidates for the observatory in the “North and South American region.” |  |
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| Method 2 : Gravity recovery and climate experiment (GRACE) | |
| The satellite Gravity Recovery and Climate Experiment (GRACE) provided data describing monthly changes in the geoid, which are closely related to changes in vertically integrated terrestrial water storage including groundwater. For regional- to global-scale groundwater analyses, GRACE will provide a useful, direct measure of seasonal water storage for river basins (e.g. Rodell and Famiglietti, 2002). |  Ramillien et al., 2004
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| Method 3 : Modeling and numerical simulation | |
| Modeling and numerical simulations are the third task of the project for estimating potential changes in recharge and discharge rates. For instance, changes in groundwater discharge into the ocean due to sea level changes will be simulated under the context of land-ocean interaction during the climate changes. Changes in groundwater recharge rates will be modeled regionally and globally under the context of land-atmosphere interaction (e.g. Taniguchi et al., 2002; Kooi and Groen, 2001; Green et al. 1997). |  Doll et al 2002
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| Method 4 : Proxy data (paleohydrology) | |
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| Organizations | Contact |
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Dr. Makoto TANIGUCHI Research Institute for Humanity and Nature (RIHN) 457-4 Motoyama, Kamigamo, Kita-ku, Kyoto 603-8047 Japan tel: +81-75-707-2255, fax: +81-75-707-2506 e-mail:  |
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