Food and Agriculture Organization (FAO)

FAO GeoNetwork OGC Web Map Server

annual_water_requirement_shallow_ponds annual_water_requirement_shallow_ponds annual_water_requirement_shallow_ponds
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Food and Agriculture Organization (FAO) (unverified)

Contact information:

Jeroen Ticheler

Food and Agriculture Organization (FAO)

Viale delle Terme di Caracalla, 00153 Rome, Italy


Phone: +39-06 57051

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Available map layers (2)

FAO GeoNetwork OGC Web Map Server (GNW)

Net annual water requirement for shallow ponds (annual_water_requirement_shallow_ponds)

Total amount of water required for fishponds during the dry season. This net annual water requirement was computed using a water budget equation for each grid cell. The equation is based on the difference amongst precipitation, potential evapotranspiration and seepage and these calculations were derived from monthly evaluations. Mean monthly gridded values for precipitation were obtained from the Centre for Resource and Environmental Studies (CRES) at the Australian National University. GRID files containing monthly potential evapotranspiration values according to Penman-Monteith method for the whole world were obtained from the International Institute for Applied Systems Analysis (IIASA). Seepage was a coefficient in the water budget equation.

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