Results 21 to 30 of about 3,376 (207)

Monitoring of the hydrological regime of the Saratov reservoir using the MNDWI index

IOP Conference Series: Earth and Environmental Science, 2021
Abstract The article analyzes the possibilities of using Earth remote sensing (ERS) indices for monitoring the state of the environment. The possibility of using remote sensing indices for monitoring and forecasting the state of water bodies and watercourses, their hydrological characteristics was assessed.
D N Sherstobitov, V V Ermakov, A A Bochkina, O V Tupitsyna, D E Bykov, K L Chertes   +5 more
openaire   +1 more source

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

Remote 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, Lei Wang, Kun Yang, Deliang Chen, Xiuping Li, Tian Zeng, Zhidan Hu   +6 more
doaj   +1 more source

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

Remote 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, Wenchao Sun, Fan Lu, Rui Zuo   +3 more
doaj   +1 more source

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

Journal 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

Analisis Dataran Banjir Menggunakan Spatial Computing MNDWI Dengan Sentinel 2 di Danau Rawa Pening

MAJALAH PEMBELAJARAN GEOGRAFI, 2023
Danau Rawa Pening menjadi sistem penyimpanan air yang penting bagi masyarakat Kabupaten Semarang. Danau Rawa Pening memiliki permasalahan terhadap pendangkalan yang disebabkan salah satunya karena faktor eutrofikasi oleh tanaman eceng gondok. Pendangkalan danau berdampak buruk terhadap kapasitas penyimpanan air, sehingga dapat berpotensi mengalami ...
Fahmi Arif Kurnianto, Edo Novandrian Syah, Dimas Andriyan, Fahrizal Maulana, Emy Khilmiah Khilmiah, Hindun Fatiniyah Rosyidi, Rahayu Gemilang Gemilang, Ikhlas Nur Muhammad   +7 more
openaire   +1 more source

Dynamics of Land Use and Land Cover Changes in Harare, Zimbabwe: A Case Study on the Linkage between Drivers and the Axis of Urban Expansion [PDF]

, 2019
With increasing population growth, the Harare Metropolitan Province has experienced accelerated land use and land cover (LULC) changes, influencing the city’s growth.
Marondedze, Andrew K., Schütt, Brigitta   +1 more
core   +1 more source

Analysis of dynamic change of Hongjiannao Lake based on MNDWI

IOP Conference Series: Earth and Environmental Science, 2017
In order to understand recent changes in inter-annual trends in water area of Hongjiannao Lake and to explore influence factors affecting the changes, the Landsat data during the year from 1988 to 2014 was processed by Modified Normalized Difference Water Index (MNDWI) and the water body boundary of Hongjiannao Lake was extracted.
Hui Yue, Ying Liu, Haoren Wang, Wei Zhang   +3 more
openaire   +1 more source

اندازه گیری نوسانات بهار و پاییز شاخص های کاربری زمین (LULC) با استفاده از روش ماشین بردار پشتیبانی (SVM) و تحلیل روابط همبستگی LST با شاخص های NDBI، MNDWI و NDVI T T، در محدوده گردنه حیران [PDF]

هیدروژئومورفولوژی
هدف از این تحقیق بررسی روابط بین LST و LULC در منطقه گردنه حیران می باشد. شاخص های LULC متشکل از شاخص های تفاوت نرمال شده پوشش گیاهی (NDVI) ، تفاوت نرمال شده ساخت و ساز (NDBI) و تفاوت نرمال شده و اصلاح شده آب (MNDWI) می باشد.
مهدی فیض اله پور
doaj   +1 more source

BRAZILIAN MIDWEST NATIVE VEGETATION MAPPING BASED ON GOOGLE EARTH ENGINE [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Google Earth Engine (GEE) platform is an online tool, which generates fast solutions in terms of image classification and does not require high performance computers locally.
N. V. Estrabis, L. Osco, A. P. Ramos, W. N. Gonçalves, V. Liesenberg, H. Pistori, J. Marcato Junior   +6 more
doaj   +1 more source

A new method for surface water extraction using multi-temporal Landsat 8 images based on maximum entropy model

European Journal of Remote Sensing, 2022
The spectral matching algorithm based on the discrete particle swarm optimization algorithm (SMDPSO) sometimes overestimates extracted surface water areas.
Wangping Li, Wanchang Zhang, Zhihong Li, Yu Wang, Hao Chen, Huiran Gao, Zhaoye Zhou, Junming Hao, Chuanhua Li, Xiaodong Wu   +9 more
doaj   +1 more source