Bonetto, SABRINA MARIA RITA

English

Institutional Research Information System University of Turin

Geophysical Research AbstractsVol. 18, EGU2016-16952-2, 2016EGU General Assembly 2016© Author(s) 2016. CC Attribution 3.0 License.An approach to integrate spatial and climatological data as support todrought monitoring and agricultural management problems in SouthSudanSabrina Bonetto (1), Anna Facello (2), Walther Camaro (3), Elena Isotta Cristofori (4), and Alessandro Demarchi(4)(1) University of Turin, Department of Earth Sciences, Turin, Italy(sabrina.bonetto@unito.it), (2) National Research Council,Research Institute for Geo-hydrological Protection, Torino, Italy (facelloanna@gmail.com), (3) ITHACA, Torino, Italy(walther.camaro@gmail.com), (4) Politecnico di Torino, DIST, Italy (ele.cristofori@gmail.com)Drought is a natural hazard characterized by an abnormally dry event in the hydrological cycle caused by insuffi-cient precipitation over an extended period of time, which affects more people than any other natural disaster andresults in social, economic and environmental costs.In Africa, the economic system is based primarily on natural resources for example farming. For this reason, cli-mate variability and events such as drought are phenomena that can represent significant disturbances and threatsin the agricultural systems.In particular, this study concerns the monitoring of environmental changes in the south sector of South Sudan.The climate and environment in the South Sudan have shown localised changes during the course of this centuryand recurrent wars and droughts in the last years determined a large food-crisis. Actually, the security situation isstabilised with sporadic fighting concentrated in Jonglei, Unity and Upper Nile States. With the stabilisation of theconflict, many refugees have returned to their regions, trying to recover the economic structure based mainly onagriculture. For this reason, it is important to monitoring and analysis the vegetation and drought trend over thelast years to support agricultural development and food security, in particular in post-conflict areas.This study focuses on the analysis of the relationship between the temporal variations of state of vegetation and theprecipitation patterns. A historical analysis of the vegetation behaviour (NDVI) and the drought during the year isdeveloped. In addition, with the aim to identify the wet and dry seasons, an analysis of precipitation is performed.Based on the vegetation and precipitation trends obtained, it is possible to characterize the best areas to start anagricultural system, giving priority to certain areas in order to plan the land use for agricultural purposes and pro-gramming crop (which and where). Consequently, with the aim to identify possible humanitarian emergencies, theprecipitation is used to monitoring potential drought events in the critical periods of the year.The methods employed and integrated different satellite data (Landsat and NASA-TRMM) in order to generatea proper database for the analysis of the seasonal movements according to climatological variations. Preliminaryresults will be presented and discussed.

An approach to integrate spatial and climatological data as support to drought monitoring and agricultural management problems in South Sudan

https://iris.unito.it/bitstream/2318/1638399/1/EGU2016-16952-2.pdf

An approach to integrate spatial and climatological data as support to drought monitoring and agricultural management problems in South Sudan

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