Results 21 to 30 of about 3,065 (186)

A REMOTE SENSING (RS) APPROACH USING NORMALIZED DIFFERENCE VEGETATION INDEX AND NORMALIZED DIFFERENCE WATER INDEX (NDVI & NDWI) FOR MAPPING THE ARCHAEOLOGICAL LANDSCAPE OF LORALAI DISTRICT, BALOCHISTAN.

open access: yes
The remote sensing imagery of Normalized Difference Vegetation Index and Normalized Difference Water Index (NDVI & NDWI), and field explorations has given a richer understanding of the archaeological landscape of the Loralai district in Balochistan, Pakistan. A systematic survey was conducted by the first author in 2020, 2021, and 2022, examining a
Khan, Zakir   +5 more
openaire   +4 more sources

Drought monitoring of large lakes in Iraq using remote sensing images and normalized difference water index (NDWI)

open access: yesResults in Engineering
Drought conditions bring many problems to water resources, especially in areas of low precipitation. This study employs the Normalized Difference Water Index (NDWI) to understand the severity of drought for effective and sustainable utilization and timely response.
Mohammed R. Mahmood   +4 more
openaire   +4 more sources

IDENTIFICATION OF INUNDATED AREA USING NORMALIZED DIFFERENCE WATER INDEX (NDWI) ON LOWLAND REGION OF JAVA ISLAND

open access: yesInternational Journal of Remote Sensing and Earth Sciences (IJReSES), 2014
Flood disaster is a major issues due to its frequently events on several areas in Indonesia. Delineation of inundated area caused by flood is needed to support disaster emergency response. The objective of this research was to identify inundated areas using NDWI methos from Landsat TM/ETM+ data on lowland regions of Java island.
- Suwarsono, Jalu Tejo Nugroho, - Wiweka
openaire   +3 more sources

Evaluation of dryness conditions in Babylon governorate Using the Standardized Precipitation Index (SPI) and the Normalized Difference Water Index (NDWI) [PDF]

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract Drought is an anomaly from normal climatic conditions, which affects most of the climatic zones worldwide. Drought monitoring is a very crucial step to detect drought vulnerable zones and to raise awareness about the future of development.
Qassim A. T. Al-Shujairy   +2 more
openaire   +1 more source

Assessment of drought severity in Khar Yamaat Nature Reserve Area using satellite derived drought indexes

open access: yesMongolian Journal of Biological Sciences, 2022
Mongolia has experienced several extreme climate events during the past decades, including severe extreme droughts. The issue of drought is of paramount significance in our country of nomadic culture and nomadic pastoralism. The eighteen years (2001-2018)
Munkhtur Davaagerel   +2 more
doaj   +1 more source

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

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

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

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

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