Results 11 to 20 of about 2,139 (188)

Water Bodies’ Mapping from Sentinel-2 Imagery with Modified Normalized Difference Water Index at 10-m Spatial Resolution Produced by Sharpening the SWIR Band [PDF]

open access: yesRemote Sensing, 2016
Monitoring open water bodies accurately is an important and basic application in remote sensing. Various water body mapping approaches have been developed to extract water bodies from multispectral images.
Yun Du   +5 more
doaj   +6 more sources

Combining Satellite Optical and Radar Image Data for Streamflow Estimation Using a Machine Learning Method

open access: yesRemote Sensing, 2023
River water surface extent can be extracted from optical and radar satellite images; this is useful for estimating streamflow from space. The radiation characteristics of open water from the visible and microwave bands are different and provide ...
Xingcan Wang   +3 more
doaj   +2 more sources

Analysis of land surface temperature using Geospatial technologies in Gida Kiremu, Limu, and Amuru District, Western Ethiopia

open access: yesArtificial Intelligence in Agriculture, 2022
Degradation of vegetation cover and expansion of barren land are remained the leading environmental problem at global level. Land surface temperature (LST), Normalized Difference Vegetation Index (NDVI), Normalized Difference Barren Index (NDBaI), and ...
Mitiku Badasa Moisa   +4 more
doaj   +2 more sources

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

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   +2 more sources

Monitoring the Desiccation of Inland Wetland by Combining MNDWI and NDVI: A Case Study of Upo Wetland in South Korea

open access: yesSpatial Information Research, 2015
This research is primarily intended to explore a novel way to monitor desiccation of inland wetland by combining MNDWI (Modified Normalized Difference Water Index) and NDVI (Normalized Difference Vegetation Index). The changes for vegetation and water condition on Upo Wetland located at southeastern Korea were investigated by MNDWI and NDVI derived ...
Jung-Sup Um
exaly   +3 more sources

Evaluation of the Surface Water Distribution in North-Central Namibia Based on MODIS and AMSR Series

open access: yesRemote Sensing, 2014
Semi-arid North-central Namibia has high potential for rice cultivation because large seasonal wetlands (oshana) form during the rainy season. Evaluating the distribution of surface water would reveal the area potentially suitable for rice cultivation ...
Hiroki Mizuochi   +3 more
doaj   +2 more sources

Assessing the performance of remotely-sensed flooding indicators and their potential contribution to early warning for leptospirosis in Cambodia. [PDF]

open access: yesPLoS ONE, 2017
Remote sensing can contribute to early warning for diseases with environmental drivers, such as flooding for leptospirosis. In this study we assessed whether and which remotely-sensed flooding indicator could be used in Cambodia to study any disease for ...
Julia Ledien   +6 more
doaj   +3 more sources

A NOVEL METHOD FOR WATER AND WATER CANAL EXTRACTION FROM LANDSAT-8 OLI IMAGERY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Constituents of hydrologic network, River and water canals play a key role in Agriculture for cultivation, Industrial activities and urban planning. Remote sensing images can be effectively used for water canal extraction, which significantly improves ...
S. L. K. Reddy   +4 more
doaj   +3 more sources

FLOOD MONITORING USING NDWI AND MNDWI SPECTRAL INDICES: A CASE STUDY OF AGHQALA FLOOD-2019, GOLESTAN PROVINCE, IRAN [PDF]

open access: yesInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives, 2019
Abstract. Assessment of changes of water bodies and vegetation by traditional methods is very difficult and costly. The use of satellite data makes it possible to study water bodies and vegetation more accurately and cost effectively. Accordingly, various digital methods have been developed to discover and detect changes of earth's surface features ...
F. Khalifeh Soltanian   +2 more
exaly   +4 more sources

Assessment of Surface Water Dynamicsin Bangalore Using WRI, NDWI, MNDWI, Supervised Classification and K-T Transformation

open access: yesAquatic Procedia, 2015
Abstract Bangalore, the IT capital of India, is one of the fastest growing city of Asia. Rapid urbanization of Bangalore during the last two decades has posed a serious threat to the existence of ecological systems, specifically water bodies which play a crucial part in supporting life.
Gautam, Vivek Kumar   +3 more
exaly   +2 more sources

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