Results 1 to 10 of about 957 (119)

Extracting Urban Water Bodies from Landsat Imagery Based on mNDWI and HSV Transformation

open access: yesRemote Sensing, 2022
Urban water bodies are critical for sustainable urban ecological and social development. However, the complex compositions of urban land cover and small water bodies pose considerable challenges to urban water surface delineation.
Chang Huang, Shujing Qin, Chenhao Fu
exaly   +3 more sources

Pemetaan Cepat Genangan Banjir Menggunakan Teknologi Remote Sensing

open access: yesRekayasa Sipil, 2022
The existence of a flood inundation rapid map is needed in flood mitigation. This research is intended to map flood inundation quickly by utilizing satellite image technology. Sentinel 2 Level 1C technology uses before and after the flood. The extraction
Tedy Pranadiarso   +2 more
doaj   +1 more source

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   +1 more source

A Seasonal Investigation on Land Surface Temperature and Spectral Indices in Imphal City, India

open access: yesJournal of Landscape Ecology, 2022
The study focused on investigating the seasonal and spatiotemporal relationship between the relationships of LST with four spectral indices (MNDWI, NDBaI, NDBI, and NDVI) in and around Manipur City of India using eight cloud-free Landsat data from the ...
Pandey Anupam   +4 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

Discharge Estimates for Ungauged Rivers Flowing over Complex High-Mountainous Regions Based Solely on Remote Sensing-Derived Datasets

open access: yesRemote Sensing, 2020
Reliable information about river discharge plays a key role in sustainably managing water resources and better understanding of hydrological systems.
Mulugeta Genanu Kebede   +6 more
doaj   +1 more source

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   +1 more source

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   +1 more source

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

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   +1 more source

مطالعه و پایش تغییرات سطح آب و تأثیر آن بر دمای سطح تالاب با استفاده از شاخص های NDWI، MNDWI و AWEI (مطالعه موردی: تالاب های شادگان و هورالعظیم) [PDF]

open access: yesعلوم و مهندسی آبیاری, 2021
پایش و حفاظت از تالاب­ها به­دلیل نقش مهم این منابع در حفظ اکوسیستم و تامین نیازهای افتصادی و اجتماعی جوامع بشری امری لازم و ضروری می­باشد. در این تحقیق با استفاده از سه شاخص NDWI، MNDWI و AWEI میزان سطح تالاب­های هورالعظیم و شادگان واقع در استان خوزستان ...
خدیجه امیری   +2 more
doaj   +1 more source

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