| ACSAD |
Arab Center for the Studies of Arid Zones and Drylands |
| AQUASTAT |
FAO's global information system on water and agriculture |
| EMWIS |
Euro-Mediterranean Information System on know-how in the Water sector |
| EUROSTAT |
Statistical office of the European Union |
| GEOSS |
The Global Earth Observation System of Systems |
| GCMD |
Global Change Master Discovery (NASA) |
| HOA |
Hydrological Observatory of Athens |
| ICARDA |
The International Center for Agricultural Research in the Dry Areas |
| PHG |
Palestinian Hydrology Group |
| Plan Bleu |
Regional Activity Center |
| WRI |
EarthTrends Environmantal Information |