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The LEAP software January 21, 2008 Peter Hoefsloot consultant to WB and WFP

The LEAP software January 21, 2008 Peter Hoefsloot consultant to WB and WFP. A bit of History. Assumption behind LEAP: In rural areas in Ethiopia people largely depend on crops and livestock (rangeland) for their livelihood Monitoring Rainfall during season is too crude as an indicator.

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The LEAP software January 21, 2008 Peter Hoefsloot consultant to WB and WFP

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  1. The LEAP software January 21, 2008 Peter Hoefsloot consultant to WB and WFP

  2. A bit of History • Assumption behind LEAP: In rural areas in Ethiopia people largely depend on crops and livestock (rangeland) for their livelihood • Monitoring Rainfall during season is too crude as an indicator. • In Ethiopia crop yields are to a large extend predicted by the amount of available water compared to water requirement. • Monitoring crop yields provides an early indicator of livelihood crises • A simple Water Balance Model correlates well to yields

  3. From rain and crops to indicators with a water balance model

  4. General Philosophy of LEAP tool • Compatibility with AgroMetShell • Grid based, resolution 0.1 degrees • Different input and output datasets • Dataset priority • Many indexes pre-calculated. • Flexible number of crops • Specific Import functions for all data • Internet update for new data (RFE2 etc..)

  5. The FAO Water Balance Model • Main output: Water Requirements Satisfaction Index (essentially ETa / ET0) • Small set of input data • Transparent • In use (with small variations) by: • FewsNET (Africa) • JRC of EU (worldwide) • FAO (Africa and Asia); AgrometShell • (…)

  6. LEAP comes with lots of data • Crops • FAO WHC • 15 crops and crop coefficients • Rainfall estimates • RFE1 (1995 to 2000) • RFE2 (2000 to present) • TAMSAT (Univ. of Reading) • ARC (Africa Rainfall Estimate Climatology) • SEDI • National Meteorological Agency ground data • ET0 • FAO average dekadal ET0

  7. Getting LEAP and getting support • Tool (regularly new versions) • vam.wfp.org/leap • Technical Support Mathewos Hunde m_hunde@hotmail.com mattewos.hunde@wfp.org Peter Hoefsloot peter.hoefsloot@wxs.nl

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