South Africa

Project Overview

Crop identification and Crop Area Estimation

  • Operational crop area estimation for winter (Wheat, Barley) and summer (Maize, sunflower, sorghum, soya and dry beans) crops continue. This data is fed to the national Crop Estimations Committee. Operational systems are continually improved as technologies and systems become available. Satellite imagery is used to delineate and update the national cultivated field database as well as to selectively classify crop type.

  • Crop condition/ stress

The Umlindi system, based on course resolution imagery (Proba V and Modis) and in situ (weather station data) continues to issue its monthly newsletter on drought monitoring, crop condition and other relevant information. The system is continually improved as new indices are incorporated.

  • Soil moisture

The Umlindi system issues a monthly soil water product generated using the Topkapi model run by the University of KwaZulu-Natal. A number of soil water sensors have also been added to some of the automatic weather stations located in the JECAM site.

  • Yield prediction and forecasting

Yield data for wheat and maize is also operationally collected and all this data is fed to the national Crop Estimations Committee for monthly national production estimates. Operational systems are continually improved as technologies and systems become available.

  • Crop Residue, Tillage and Crop Cover Mapping

Not currently addressed due to resource constraints.

The mapping resolution is around 1:50 000. 

The timeliness (with regards to growing season) are:

  • Summer crops – Planted December, Harvest May/June

  • Winter Crops – Planted April May, Harvested October November

©2015 Joint Experiment for Crop Assessment and Monitoring
© HER MAJESTY THE QUEEN IN RIGHT OF CANADA SA MAJESTE LA REINE DU CHEF DU CANADA (2015)