Results 1 to 10 of about 1,836 (134)

Comparative Analysis of Normalized Difference Water Index (NDWI) Methods in Continental Wetland [PDF]

open access: yesAnuário do Instituto de Geociências, 2018
The remote sensing data, like radiometric indices, represent alternative data generation sources that can help us understand the natural processes that occur in the Pantanal.
Luciana Escalante Pereira   +3 more
doaj   +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
exaly   +2 more sources

Assessing habitat suitability for wintering geese by using Normalized Difference Water Index (NDWI) in a large floodplain wetland, China

open access: yesEcological Indicators, 2021
Hydrological condition is one of the most important factors affecting the abundance and distribution of waterbirds in large freshwater floodplains, as it influences their habitat and food availability. The hydrological condition is commonly indicated with site-based hydrological data such as water level.
Jiakun Teng, Yu Liu, Houlang Duan
exaly   +3 more sources

A NEW MULTI-SPECTRAL THRESHOLD NORMALIZED DIFFERENCE WATER INDEX (MST-NDWI) WATER EXTRACTION METHOD – A CASE STUDY IN YANHE WATERSHED [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Accurate remote sensing water extraction is one of the primary tasks of watershed ecological environment study. Since the Yanhe water system has typical characteristics of a small water volume and narrow river channel, which leads to the difficulty for ...
Y. Zhou   +6 more
doaj   +3 more sources

Monitoring 2015 drought in West Java using Normalized Difference Water Index (NDWI)

open access: yesIOP Conference Series: Earth and Environmental Science, 2018
Drought is a slow developing phenomenon that accumulates over period and affecting various sectors. It is one of natural hazards that occurs each year, particularly in Indonesia over Australian Monsoon period. During drought event, vegetation's cover can be affected by water stress.
Luisa Febrina Amalo   +2 more
exaly   +2 more sources

Using the Normalized Difference Water Index (NDWI) within a Geographic Information System to Detect Swimming Pools for Mosquito Abatement: A Practical Approach [PDF]

open access: yesRemote Sensing, 2013
Mosquito-borne diseases affect millions of people worldwide. In the United States, since 1999, West Nile Virus (WNV) has infected 36,801 people and has caused the deaths of 1,580. In California, since 2002, nearly 3,600 people have been infected with WNV with an additional 124 fatalities.
exaly   +4 more sources

Retrieval of land surface temperature, normalized difference moisture index, normalized difference water index of the Ravi basin using Landsat data

open access: yesApplied Computing and Geosciences, 2021
Land surface temperature (LST) is an important parameter for the biosphere, cryosphere, and climate change studies. In this study, we estimate LST, NDMI, and NDWI over the Ravi basin, India, and parts of Pakistan, using Landsat-8 Operational Land Imager (
Ajay Kumar Taloor   +2 more
doaj   +3 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.
Hayder Alalwan
exaly   +3 more sources

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

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