Results 11 to 20 of about 6,410 (217)

A light-weight model to generate NDWI from Sentinel-1

open access: yesCoRR
The use of Sentinel-2 images to compute Normalized Difference Water Index (NDWI) has many applications, including water body area detection. However, cloud cover poses significant challenges in this regard, which hampers the effectiveness of Sentinel-2 ...
Jony, Saifur Rahman   +6 more
core   +6 more sources

Optimising NDWI supraglacial pond classification on Himalayan debris-covered glaciers [PDF]

open access: yesRemote Sensing of Environment, 2018
The ability of medium-resolution (10–30 m) satellite imagery to delineate the size and persistence of ponds on debris-covered glaciers is a topic of recent interest as it has become apparent through the use of fine-resolution products that smaller ponds ...
Miles, ES   +3 more
core   +4 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

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

open access: yesAnuário do Instituto de Geociências - UFRJ, 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.
Gustavo Amorim   +3 more
core   +3 more sources

Study of Fluctuations in Surface Area of Lake Haramaya using NDWI and MNDWI Methods

open access: yesJournal of Geospatial Information Science and Engineering, 2022
Lakes are of great value to human beings and important for various reasons like regulating the flow of river water, to maintain the eco-system and storage of water during the dry seasons. Lake Haramaya, which is situated at 14 km Northwest of Harer town (
Riyaz Khan N H
doaj   +3 more sources

ANALYSIS OF NDVI, NDWI, AND SAVI TRANSFORMATIONS FOR IDENTIFICATION OF MANGROVE DENSITY IN BENGKULU

open access: yesGeoEco
This study was conducted in the mangrove forest area of Bengkulu City, Indonesia, which is rich in ecosystem diversity and has a long coastline. By utilising remote sensing technology, this study aimed to provide accurate information on the condition of ...
Al Ikhsan Rama Komura   +2 more
doaj   +2 more sources

The PCA-NDWI Urban Water Extraction Model Based on Hyperspectral Remote Sensing

open access: yesWater
Accurate extraction of water bodies is the basis of remote sensing monitoring of water environments. Due to the complex types of ground objects around urban water bodies, high spectral and spatial resolution are needed to achieve accurate extraction of ...
Zitong Zhao   +7 more
core   +2 more sources

Revision of Vajiralongkorn Dam’s Reservoir Characteristic CurvesUsing NDWI Derived from Landsat8 Data

open access: yesEnvironment and Natural Resources Journal, 2019
Reservoir characteristics are the essential information for water management planning and reservoir operation. Regular monitoring and assessment of the reservoir characteristics can reduce risks associated with the ...
Yutthana Phankamolsil   +1 more
doaj   +3 more sources

Analysis of Rawa Pening Lake Morphometric Changes for Identification of Land Arises

open access: yesJambura Geoscience Review, 2023
Rawa Pening Lake is a natural lake with the status of a critical lake in Indonesia because there is an uncontrolled population of water hyacinths, so a layer of water hyacinths covers the surface of the water.
Nurhadi Bashit   +3 more
doaj   +1 more source

Otsu’s thresholding for NDWI and MNDWI.

open access: yes, 2022
Otsu’s thresholding for NDWI and MNDWI.
Kumar Arun Prasad (14249885)   +8 more
core   +1 more source

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