Results 11 to 20 of about 1,769 (150)

Comparison of NDWI, MNDWI1 and MNDWI2 Indices from Sentinel-2 Satellite Images for Extracting Urban Surface Water Bodies in Khon Kaen

open access: yesวารสารวิทยาการสารสนเทศและเทคโนโลยีประยุกต์, 2021
The objective of this research is to compare methods for determining the Normalized Difference Water Index (NDWI) and the Modified Normalized Difference Water Index (MNDWI) and resistance to urban and urban disturbances.
Chaiyarit Sawetwong, Pipat Reungsang
doaj   +1 more source

Application of Remote Sensing on El Niño Extreme Effect in Normalized Difference Vegetation Index (NDVI) and Normalized Difference Water Index (NDWI)

open access: yesMalaysian Journal of Applied Sciences, 2021
The years 1997/1998 and 2015/2016 saw the worst El Niño occurrence in human history. The occurrence of El Niño causes extreme temperature events which are higher than usual, drought and prolonged drought. The incident caused a decline in the ability of plants in carrying out the process of photosynthesis.
Ricky Anak Kemarau   +1 more
openaire   +2 more sources

Evaluating crop water stress through satellite-derived crop water stress index (CWSI) in Marathwada region using Google Earth Engine

open access: yesJournal of Agrometeorology, 2023
Accurate information of crop water requirements is essential for optimal crop growth and yield. Assessing this information at the appropriate time, particularly during the vegetative and reproductive stages when water demand is highest, is crucial for ...
ANIL KUMAR SONI   +4 more
doaj   +1 more source

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

open access: yesThe 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

Detection of historical landscape changes in Lake Victoria Basin, Kenya, using remote sensing multi-spectral indices

open access: yesWatershed Ecology and the Environment, 2022
The Kenyan Lake Victoria basin has been experiencing land degradation and overexploitation as seen in various landscape changes. Quantifying and understanding the nature of these changes is essential for management decision-making.
Dancan O. Onyango, Stephen B. Opiyo
doaj   +1 more source

Land use changes and its impact on biophysical environment: Study on a river bank

open access: yesEgyptian Journal of Remote Sensing and Space Sciences, 2021
The rapidly changing land use from agriculture to aquaculture and its emerging adverse impact on various biophysical environments along the Rasulpur River bank, West Bengal, India have been quantified by using Landsat data from 2003 to 2017.
Suraj Kumar Mallick, Somnath Rudra
doaj   +1 more source

Pemetaan Cepat Genangan Banjir Menggunakan Teknologi Remote Sensing

open access: yesRekayasa Sipil, 2022
The existence of a flood inundation rapid map is needed in flood mitigation. This research is intended to map flood inundation quickly by utilizing satellite image technology. Sentinel 2 Level 1C technology uses before and after the flood. The extraction
Tedy Pranadiarso   +2 more
doaj   +1 more source

Distribusi Spasial Tingkat Kebasahan Lahan di Kota Pfdontianak Menggunakan Normalized Difference Water Index (NDWI)

open access: yesPRISMA FISIKA, 2023
Distribusi tingkat kebasahan lahan dapat dilakukan dengan menggunakan Normalized Difference WaterIndex (NDWI). NDWI merupakan indeks yang menunjukan tingkat kebasahan vegetasi pada suatu wilayah.NDWI merupakan fungsi kanal Near Infrared (NIR) dan Short Warelength Infrared (SWIR).
Febriana Diah Permata   +2 more
openaire   +1 more source

A Novel Method for River Bank Detection from Landsat Satellite Data: A Case Study in the Vietnamese Mekong Delta

open access: yesRemote Sensing, 2020
River bank (RB) erosion is a global issue affecting livelihoods and properties of millions of people. However, it has not received enough attention in the Vietnamese Mekong Delta (VMD), i.e., the world’s third largest delta, compared to salinity ...
Doan Van Binh   +8 more
doaj   +1 more source

Reservoir Sedimentation Assessment Using Geospatial Technology: A case Study of Dukan Reservoir, Sulaimani Governorate, Kurdistan Region, Iraq

open access: yesJournal of Engineering, 2023
The accumulation of sediment in reservoirs poses a major challenge that impacts the storage capacity, quality of water, and efficiency of hydroelectric power generation systems.
Haveen Muhammed Rashid
doaj   +1 more source

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