Ethiopia 2015 drought - Vegetation productivity analysis

Map
from ITHACA
Published on 29 Dec 2015 View Original

According to FewsNet. following the worst drought in more than 50 years. a major food security emergency is ongoing in central and eastern Ethiopia. Rainfall in central and eastern Ethiopia was very poor during 2015. February to May Belg rains were erratic and well below average; and the subsequent June to September Kinemt rains started late and were also significantly below average. As a result. a major food security emergency is expected to persist through 2016.

The vegetation productivity in Ethiopia and Horn of Africa for the 2015 vegetation growing seasons is described here using the Seasonal Smal Integral (SS!) parameter extracted from MODlS NDVI time-series (2011-present). For cultivated areas. vegetation productivity reduction may lead to reductions in crop yield. For pastoral area, vegetation productivity reductions may indicate a decrease of the available resource as wel. Results at the original spatial resolution (005°) are presented.

Left map shows vegetation productivity observed where the vegetation growing season was already finished on December 2nd. whereas the right map shows the areas where the growing season was still ongoing on the same date. In this latter case. the analysis supplies results about the vegetation productivity expected at the end of the season. based on the current observed vegetation status. Areas where SSI deviations were mapped in both maps are those registering two growing seasons in 2015 crop calendar (i.e.. the maps reier to the first and second season encountered from the start of the year respectively). It should be noted that. each considered growing season may have started during ditlerent periods of the year according to the specific agro-ciimatic zone each investigated area belongs.

Forests and areas presenting no vegetation growing seaon have been excluded from the analysis.

These maps are derived only from satellite data analysis and are not based on official governmental surveys.

Sources: Esri, DeLorme, USGS, NPS; Sources: Esri, USGS, NOAA