Three different types of data are used as an input for the small area model. They are data from the 2001 agricultural census, wereda level data from the ministry of agriculture and the direct estimates from the annual agricultural survey. Different evaluations are being conducted to evaluate the result and this activity will also continue to improve the result.
Side by side to the pilot survey for area frame, data on cultivated area of land was collected on two different methods. These are the usual compass rope method and the other is using GPS. The result of the two methods was not significantly different. So, now CSA is planning to use GPS for area measurement starting from next year in one big region.
