Drought Risk Assessment Using Remote Sensing and GIS in Yemen
نویسندگان
چکیده
منابع مشابه
Mapping of Agriculture Drought using Remote Sensing and GIS
Agriculture drought occurs when moisture level in soils is insufficient to maintain average crop yields. Initial consequences are in the reduced seasonal output of crops & other related production. An extreme agricultural drought can lead to a famine, which is a prolonged shortage of food in a restricted region causing widespread diseases and deaths from starvation. Agriculture drought is mainl...
متن کاملSpatial Drought Assessment Using Remote Sensing and GIS techniques in Northwest region of Liaoning, China
In this study, we used the time series images of spectral reflectance from TERRA satellite to compute normalized difference vegetation index (NDVI) and normalized difference moisture index (NDMI) in the Chaoyang City, western Liaoning, north-eastern China. Time-series data of NDVI and NDMI derived from satellite images of the Moderate Resolution Imaging Spectroradiometer (MODIS) were used to sh...
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Drought disasters in Thailand have been occurring with increasing frequency in recent years. A drought is one weather hazard that is often underestimated for two reasons. (i) Droughts have a slow rate of onset and, (ii) They have less visual impact on us. However, the long term outcome of a drought can be widespread and very devastating. This drought risk area evaluation study involved the intr...
متن کاملDrought risk assessment in pasture arid Morocco through remote sensing
During the last three decades, Morocco has experienced several stern and extended episodes of drought that severely affected pasture production. To cope with this phenomenon, the policy makers have put emphasis on a reactive short term management approach rather than on pro-active risk-based management measures. The purpose of this study is the assessment of drought by remote sensing, which is ...
متن کاملDroughts & Floods Assessment and Monitoring Using Remote Sensing and Gis
Space technology has made substantial contribution in all the three phases such as preparedness, prevention and relief phases of drought and flood disaster management. The Earth Observation satellites which include both geostationary and polar orbiting satellites provide comprehensive, synoptic and multi temporal coverage of large areas in real time and at frequent intervals and ‘thus’ have bec...
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ژورنال
عنوان ژورنال: International Journal of Engineering & Technology
سال: 2018
ISSN: 2227-524X
DOI: 10.14419/ijet.v7i2.29.13823