Results 61 to 70 of about 1,026 (165)

Quantifying river morphological changes using multi‐satellite observations and in situ measurements

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
This study integrates optical, radar and altimetry satellite data with river gauge measurements to estimate periodically submerged riverbed topography and quantify morphological change. By linking how often water covers the riverbed with water‐level variations, erosion and deposition patterns are mapped across a reach of Jamuna River.
Tek Narayan Bhattarai   +5 more
wiley   +1 more source

Long-Term Phase Changes In The South Aral Sea Region Lakes

open access: yesВодное хозяйство России: проблемы, технологии, управление
A detailed study of the hydrological regime of lakes is an urgent task, however, it should be noted that this issue is complicated by the lack of systematic observations on lakes.
Farida Y. Artykova, Salauat B. Kalabaev
doaj   +1 more source

A novel framework for analysing river planform characteristics in data‐scarce regions using remote sensing data

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
Using a three‐step framework of data preprocessing, analysis and interpretation, we provide insights into the seasonal and annual pattern of morphological changes, the overall bed form and dynamics and the location of morphological uniform river sections to assess the current morphological river state in data‐scarce regions.
Hannah Schwedhelm   +4 more
wiley   +1 more source

Evaluating the stability of the relationship between land surface temperature and land use/land cover indices: a case study in Hyderabad city, India

open access: yesGeology, Ecology, and Landscapes
The study focuses on evaluating the relationship between land surface temperature (LST) with four land use/land cover (LULC) indices (MNDWI, NDBaI, NDBI, and NDVI) in Hyderabad City of India using four Landsat 8 data from the winter season of 2020–21 ...
Subhanil Guha, Himanshu Govil
doaj   +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

بررسی تطبیقی روش‌های استخراج سطح آب خلیج گرگان و پایش تغییرات آن با استفاده از داده‌های ماهواره ای چند زمانه [PDF]

open access: yesهیدروژئومورفولوژی
خلیج گرگان، یکی از مهم‌ترین تالاب‌های شمالی ایران است که تغییرات سطح آب آن پیامدهای زیست‌محیطی متعددی برای مناطق اطراف دارد. مطالعه حاضر به بررسی تطبیقی تغییرات سطح آب خلیج گرگان با استفاده از شاخص های طیفی آب می پردازد.
حمید عمونیا   +2 more
doaj   +1 more source

Spatio-temporal evolution of surface water resources in the Brazilian semi-arid: a case study in the Sertão of Pernambuco [PDF]

open access: yesRBRH
The research analyzed the evolution of surface water in Serra Talhada, Brazil, over 31 years using remote sensing data from Google Earth Engine (GEE).
Geovane de Andrade Silva   +7 more
doaj   +1 more source

An integrated study on change detection and environment evaluation of surface water

open access: yesApplied Water Science, 2019
Surface water pollution is one of the serious environment pollution problems, posing threat to human and other creatures. Extraction, change detection and environment evaluation of surface water are prerequisite for water resource management. Undoubtedly,
Qiaozhen Guo   +5 more
doaj   +1 more source

Changes in the Lake Area of Tonle Sap: Possible Linkage to Runoff Alterations in the Lancang River?

open access: yesRemote Sensing, 2018
Tonle Sap Lake is the largest freshwater lake in Southeast Asia. Water development infrastructures are increasingly being constructed in the Lancang–Mekong River Basin, which is a major concern considering its potential impact on Tonle Sap Lake ...
Xuan Ji, Yungang Li, Xian Luo, Daming He
doaj   +1 more source

Spatiotemporal Analysis of Hydrological and Land Cover Transformations in the Upper Indus Basin Insights from MNDWI

open access: yesEvidence in Earth Science
The Upper Indus Basin (UIB) is a crucial freshwater source for millions of people in South Asia, although its water resources are increasingly threatened by climate change, population increase, and land-use changes. Effective monitoring and management of these resources are essential for long-term sustainability.
Hafiz Waseem Sajjad   +5 more
openaire   +1 more source

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