Earth observation for a food secure South Africa Session 4 Stuart Martin Director AfriGEOSS Symposium 27 April 2016, Victoria Falls.

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Presentation transcript:

Earth observation for a food secure South Africa Session 4 Stuart Martin Director AfriGEOSS Symposium 27 April 2016, Victoria Falls

Department of Agriculture, Forestry & Fisheries Crop Estimates Liaison Committee (CELC) Crop Estimates Committee (CEC) National Crop Statistics Consortium Agricultural Research Council SiQ (Pty) Ltd GEOTERRAIMAGE (Pty) Ltd

Weather Station derived data relevant to the crop production

Extreme conditions that map impact crop production

Vegetation condition (NDVI)

In-season (13/14) SPOT 5 (06 -13) Field level analysis Field crop boundary Satellite image calibration Provincial - PICES LANDSAT 7/8, DMC, Sentinel

Stratification: Mapped agricultural fields

SA Field boundaries (14 million ha)

PICES: Crop verification Additional points used for image training Selected fields with identified crop types Vast improvement: survey efficiency Support image classification Statistical calculation of area

Crop calendar

Maize Comparison: 2009 versus 2010 Spatial Distribution Cultivated area Crop types

Summary: Crop Estimates Earth Observation

Tracking harvest progress: May to September

14 Thank you!

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