Present research paper is an attempt to examine the dynamics of snow cover by using Normalized Difference Snow Index (NDSI) in Gori Ganga watershed, Kumaun Himalaya, Uttarakhand (India). For study Landsat satellite imageries three different time periods like TM 1990, 1999 and 2016 were used. Geographical distribution reveals that 1990 about 30.97% (678.87 km2), 25.77% (564.92 km2) area watershe...

A moment-magnitude 9.0 earthquake struck the area off the western coast of northern Sumatra on 26 December 2004, which triggered massive tsunamis inundating the coastal areas in the countries along the Indian Ocean Rim. Various moderateto high-resolution satellite images were obtained before and after the tsunami attack and used for emergency management. High-resolution satellite (e.g. IKONOS) ...

Land Use/Land Cover (LULC) changes have a significant impact on Surface Temperature (LST). The LST is an important parameter in various environmental and climatological studies, as it plays crucial role understanding the Earth’s surface–atmosphere interactions. LULC can modify surface energy balance alter radiation budget, leading to LST. Urbanization, deforestation, agricultural land use are s...

Praca ma na celu zbadanie, czy współcześnie wykorzystywane wskaźniki akustyczne mogą mieć zastosowanie w monitorowaniu krajobrazu dźwiękowego ze szczególnym zwróceniem uwagi ochronę enklaw ciszy występujących środowisku urbanistycznym. Badanymi współczynnikami były: ACI – wskaźnik złożoności akustycznej, NDSI znormalizowanej różnicy krajobrazie dźwiękowym, BI bioakustyczny, ADI różnorodności AE...

A primary goal of many remote sensing projects is to characterize the type, size and condition of vegetation present within a region. By combining data from two or more spectral bands we obtain what is commonly known as a vegetation index (VI), which enhances the vegetation signal, while minimizing solar irradiance and soil background effects. This study addresses the computation of Normalized ...

It is strongly desirable to accurately detect the clouds in hyperspectral images onboard 1 before compression. However, conventional onboard cloud detection methods are not appropriate 2 to all situation such as shadowed cloud or darken snow covered surfaces which are not identified 3 properly in the NDSI test. In this paper, we propose a new spectral–spatial classification strategy to 4 enhanc...

Snow cover in the Tibetan Plateau is highly variable in space and time and plays a key role in ecological processes of this cold-desert ecosystem. Resolution of passive microwave data is too low for regional-scale estimates of snow cover on the Tibetan Plateau, requiring an alternate data source. Optically derived snow indices allow for more accurate quantification of snow cover using higherres...

Concentrations of chlorophyll-a (Chl-a) and total suspended solids (TSS) are significant parameters used to assess water quality. The objective of this study is to establish a quantitative model for estimating the Chl-a and the TSS concentrations in irrigation ponds in Higashihiroshima, Japan, using field hyperspectral measurements and statistical analysis. Field experiments were conducted in s...