| dc.description.abstract | Drought is one of the main
disasters that act as a silent killer among Sir
Lanka and it is the disaster that affects the
highest number of people over the country.
Further can identify different types of
droughts such as Meteorological drought,
Hydrological drought, Agricultural drought,
physical Drought, and Socio- economic
drought. Under the investigation explored
the agricultural drought of Sri Lanka since Sri
Lanka is an agricultural nation andit requires
systematic and scientific investigation to
study the magnitude of the Agricultural
drought. Sri Lanka is one of the Asian
countries which is often experienced in
drought risks, when drought has happened it
is constantly changed into disaster making
various antagonistic effects on the network.
The integration between Remote sensing
techniques and Geographic Information
Systems (GIS) was used for the investigation
which is sophisticated in environmental
studies rather than field data collection.
Integration between 10 years (2009 to 2019)
of Moderate Resolution Imaging
Spectroradiometer (MODIS) remote sensing
images were utilized for Agricultural drought
detection by using the Normalized Difference
Vegetation Index (NDVI) and Vegetation
Condition Index (VCI) for the study in
ArcMap 10.1 software environment. As a
result of the study presented an Agricultural
drought risk assessment map for 2019 in Sri
Lanka. Rendering to the results, it shows a
considerable increase in drought conditions
over the past decade of Sri Lanka while
showing the dominant type is still no drought
condition of 68% from the total area. | en_US |
