- Journal of Physics: Conference SeriesVolume 1279, Issue 1, 31 July 2019, Article number 0120471st International Scientific Conference Al-Ayen University; Al-Ayen UniversityAl Nasiriya, Thi-Qar; Iraq; 30 March 2019 through 31 March 2019; Code 150120
Estimating snow cover area in south of Turkey using the Normalized Difference Snow Index (NDSI) form MODIS Satellite Images
College of Health and Medical Technology, Al-Ayen University, Thi-Qar, Iraq
Abstract
Snow and Ice-cover area information is important for a wide variety of scientific climate studies, water source and management applications. The NASA Earth Observing System (EOS) Moderate Resolution Imaging Spectroradiometer (MODIS) satellite, provides improved capabilities to observe snow-ice coverarea from space and has been successfully using a Normalized Difference Snow Index (NDSI) methodes, This technique is the same procedure for the Normalized Difference Vegetation Index (NDVI), along with threshold tests, to provide global, automated binary maps of snow cover. The NDSI is a
spectral band ratio that takes advantage of the spectral differences of snow in short-wave infrared and visible. MODIS spectral bands to identify snow versus other features in a scene. This methodes has evaluated whether there is a “signal” in the NDSI that could be used to estimate the area of snow satellite images within a 500 m MODIS pixel, the percentage of snow cover was calculated for 500 m cells. Snow cover area in the head water sourse of the rivers can be useful to estimating the amount and the quantity of the water for the rivers. The south of Turkey area have the basin of the two rivers (Tigris and Euphrates). The main fresh water sorce to Syria and Iraq. © Published under licence by IOP Publishing Ltd.