Iraqi Geological Journal, 2022 Monitoring the propagation of dunes is essential for natural hazard management. Accurate dunes mapping is critical in this situation. Landscape elements such as vegetation, water, dunes, and built-up are commonly separated using spectral indices.
Ehsan Ali Al-Zubaidi +2 more
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Monitoring Land Cover Variation Using Some Spectral Indicators in Akre Region Based on Geospatial Techniques [PDF]
Mesopotamia Journal of AgricultureThe study was carried out in the Aqre area of northern Iraq, which represents lands with various agricultural uses and located between latitudes (37°2ˉ5.42˭ - 36°29ˉ59.26˭) N and longitudes (43°35ˉ56.84˭ -44°18ˉ31.56˭) E to study the ...
Shaymaa Akrawi, Khaled Alkhaled
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Recent glacial recession in the Rwenzori Mountains of East Africa due to rising air temperature [PDF]
, 2006 Based on field surveys and analyses of optical spaceborne images (LandSat5, LandSat7), we report recent decline in the areal extent of glaciers in the Rwenzori Mountains of East Africa from 2.01 +/- 0.56 km(2) in 1987 to 0.96 +/- 0.34 km(2) in 2003.
Majugu, A +5 more
core +1 more source
Comparison of NDVI, NDRE, MSAVI and NDSI Indices for Early Diagnosis of Crop Problems
Agricultural Engineering, 2023 Abstract In precision agriculture, it is possible to use satellite monitoring of fields. Satellite monitoring systems allow you to get free images with a resolution of up to 10 m per pixel, which is sufficient to determine the state of vegetation of plants on such indicators as the normalized vegetation index NDVI.
Andrii Voitik +5 more
openaire +1 more source
On the need for a time- and location-dependent estimation of the NDSI threshold value for reducing existing uncertainties in snow cover maps at different scales [PDF]
The Cryosphere, 2018 Knowledge of current snow cover extent is essential for characterizing energy and moisture fluxes at the Earth's surface. The snow-covered area (SCA) is often estimated by using optical satellite information in combination with the normalized ...
S. Härer +3 more
doaj +1 more source
Winter Wheat Take-All Disease Index Estimation Model Based on Hyperspectral Data
Applied Sciences, 2021 Wheat take-all, caused by two variants of the fungus Gaeumannomyces gramnis (Sacc.) Arx & D. Olivier, was common in spring wheat areas in northwest and north China and occurred in winter wheat areas in north China.
Wei Guo +8 more
doaj +1 more source
Estimation of Soil Organic Matter on Paddy Field using Remote Sensing Method
Sains Tanah: Journal of Soil Science and Agroclimatology, 2019 Soil organic matter (SOM) is one of the important parameters in agriculture management, thus estimating its distribution on the land will be essential. Remote sensing can be utilized to map the SOM distribution in the large-scale area.
Luthfan Nur Habibi +4 more
doaj +1 more source
Monitoring of seasonal glacier mass balance over the European Alps using low-resolution optical satellite images [PDF]
, 2016 We explore a new method to retrieve seasonal glacier mass balances (MBs) from low- resolution optical remote sensing. We derive annual winter and summer snow maps of the Alps during 1998–2014 using SPOT/VEGETATION 1 km resolution imagery.
Berthier, Etienne +4 more
core +1 more source
Remote Sensing, 2020 Cloud contamination has largely limited the application of the Moderate Resolution Imaging Spectroradiometer(MODIS) normalized difference snow index (NDSI).
Muyi Li +3 more
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Cloud–Snow Confusion with MODIS Snow Products in Boreal Forest Regions
Remote Sensing, 2022 Reliable cloud masks in Moderate Resolution Imaging Spectroradiometer (MODIS) snow cover products have a high potential to improve the retrieval of snow properties.
Xiaoyan Wang +6 more
doaj +1 more source