Mapping agricultural drought hazard

N/A

Modelled data from a hydrologic model (with the Soil and Water Assessment Tool (SWAT) model) are used initially to compute soil water in the root zone on a weekly basis.

eng

Not relevant

Not relevant

Mapping agricultural drought hazard

Data requirements to use: Modelled data from a hydrologic model (with the Soil and Water Assessment Tool (SWAT) model) are used initially to compute soil water in the root zone on a weekly basis.;

Data used: Evapotranspiration data;

Data format: N/A;

Data access: N/A;

Concise description:

A weekly product that is helpful for identifying water stress for crops. ETDI is calculated along with the Soil Moisture Deficit Index (SMDI), in which a water stress ratio is calculated that compares actual evapotranspiration with reference crop evapotranspiration. The water stress ratio is then compared with the median calculated over a long-term period.

eng

Evapotranspiration Deficit Index (ETDI)

ISO 19115:2003/19139

1.0

http://www.droughtmanagement.info/indices/