Results 1 to 10 of about 165,617 (285)

Temporal variation in glacier surface area and glacial lakes in glaciated river basins of Arunachal Pradesh

Journal of Water and Climate Change
Climate change-induced glacier recession has sparked a dynamic transformation of glaciers in high-mountain areas worldwide, resulting in genesis, expansion, and dissipation of glacial lakes that pose a potential threat to downstream communities ...
Rimum Murtem, Sameer Mandal, V. Nunchhani, Megozeno, Arnab Bandyopadhyay, Aditi Bhadra   +5 more
doaj   +1 more source

Drought Monitoring With Spectral Indices Calculated From Modis Satellite Images In Hungary

Journal of Environmental Geography, 2015
In this study a new remote sensing drought index called Difference Drought Index (DDI) was introduced. DDI was calculated from the Terra satellite’s MODIS sensor surface reflectance data using visible red, near-infrared and short-wave-infrared spectral ...
Gulácsi András, Kovács Ferenc
doaj   +1 more source

analysis of the relationship of land surface temperature with modified normalized difference water index and normalized difference built-up index in Hyderabad City, India

South African Journal of Geomatics
The study analyses the respective relationships between two independent variables, namely, modified normalized difference water index (MNDWI) and normalized difference built-up index (NDBI), and the dependent variable, land surface temperature (LST) in Hyderabad City, southern India.
Guha, Subhanil, Govil, Himanshu
openaire   +2 more sources

DELINEATION WATER OF PEARL RIVER BASIN USING LANDSAT IMAGES FROM GOOGLE EARTH ENGINE [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Surface water plays an important role in ecological circulation. Global climate change and urbanization affect the distribution and quality of water. In order to obtain surface water information quickly and accurately, this study uses Google Earth Engine
L. Bi, B. L. Fu, P. Q. Lou, T. Y. Tang
doaj   +1 more source

Effectiveness of normalized difference water index in modellingAedes aegyptihouse index

International Journal of Remote Sensing, 2011
The application of remotely sensed data to public health has increased in Argentina in the past few years, especially to study vector-borne viral diseases such as dengue. The normalized difference vegetation index (NDVI) has been widely used for remote sensing of vegetation as well as the brightness temperature (BT) for many years.
Estallo, Elizabet Lilia, Ludueña Almeida, Francisco, Visintin, Andrés Mario, Scavuzzo, Carlos Marcelo, Lamfri, Mario Alberto, Introini, María Virginia, Zaidenberg, Mario, Almiron, Walter Ricardo   +7 more
openaire   +2 more sources

Estimation of Groundnut Water Requirements using Arc-GIS Normalized Difference Vegetation Index

, 2022
Abstract The 83-day experimentation which covered four months (August-Aug., September-Sept., October-Oct., and November-Nov.) was conducted beside the mini-hydrological station at campus-one, Auchi Polytechnic to estimate the crop water requirements (CWR) of groundnut (Arachis hypogaea L.) using Normalized Difference Index (NDVI) on sandy loamy soil at
Olotu Y., Okudugha D.A., Izah N.L., Ikhide O., Ayilaran C.I.   +4 more
openaire   +1 more source

Comparing the Capability of Sentinel-2 and Landsat 9 Imagery for Mapping Water and Sandbars in the River Bed of the Lower Tagus River (Portugal)

Remote Sensing, 2023
Mapping river beds to identify water and sandbars is a crucial task for understanding the morphology and hydrodynamics of rivers and their ecological conditions.
Romeu Gerardo, Isabel P. de Lima
doaj   +1 more source

Spectral Indices to Improve Crop Residue Cover Estimation under Varying Moisture Conditions

Remote Sensing, 2016
Crop residues on the soil surface protect the soil against erosion, increase water infiltration and reduce agrochemicals in runoff water. Crop residues and soils are spectrally different in the absorption features associated with cellulose and lignin ...
Miguel Quemada, Craig S. T. Daughtry
doaj   +1 more source

PRELIMINARY STUDY NORMALIZED DIFFERENCE WATER INDEX IN THE RECHARGE AREA OF GROUND WATER OF BEKASI DISTRICT

Jurnal Geografi Gea, 2017
In term of groundwater conservation, the aim of this research is to identify normalized difference water index (NDWI) in rock composition region of Qav (conglomerate, sandstone, tuffaceous, tuff, and breccia) which is the recharge area of groundwater deposit in Kabupaten Bekasi, as identified by a stable isotope research in 2001. This research analyzes
Darul, Achmad, Irawan, Dasapta Erwin, Roekmi, Raden Ajeng Koesoemo, Oktavia, Putu   +3 more
openaire   +2 more sources

Monitoring of Inland Surface Water Quality Using Remote Sensing on the Example of Wigry Lake

E3S Web of Conferences, 2018
The study examines how LANDSAT images can be used to monitor inland surface water quality effectively by using correlations between various indicators. Wigry lake (area 21.7 km2) was selected for the study as an example. The study uses images acquired in
Lupa Michał, Adamek Katarzyna, Stypień Renata, Sarlej Wojciech   +3 more
doaj   +1 more source