An approach to generate river cross-sections from the Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Digital Elevation Model (ASTER GDEM) is discussed. The low resolution and the inadequate vertical accuracy of such global data present difficulties in differentiating features of hydraulic importance, which necessitate pre-processing of the DEMs before they are used. A ver...

The main aim of this research was to improve risk mapping of heavy metals by taking account of erosion effects. A new spatiotemporal index, namely the G2met index, is introduced, with integration of pre-existing methodologies (Hakanson, EPM, and G2). The G2met index is depicted as a series of risk maps for each heavy metal on a month-time step. The southern part of Cyprus Island was selected as...

The article analyzes changes in steppe agricultural landscapes the central part of Azov-Kuban Plain over period 2000–2020 using satellite imagery and DEM ASTER GDEM data. terms changing structure land use hydrographic characteristics. Most Krasnodar territory, occupying 61.4 % region’s is located on plain river basins. territory under consideration with an area 6268 km², covering basins Chelbas...

Recent Digital Surface, Elevation, and Bathymetric Models (DSM/DEM/DBM) aim to provide high-resolution accurate height depth information needed for a variety of surveying, geodetic, geophysical, other applications. In this study, first we validate in two test areas some the most used models, i.e., ASTER GDEM; AW3D30 DSM; Copernicus DEM; EU-DEM; GEBCO 2020; NASADEM HGT; SRTM15+ SRTM Global, usin...

The Open-Source Digital Elevation Model (DEM) is fundamental data of the geoscientific community. However, variation its accuracy with land cover type and topography has not been thoroughly studied. This study evaluates five globally covered open-accessed DEM products (TanDEM-X90 m, SRTEM, NASADEM, ASTER GDEM, AW3D30) in mountain area using ICESat/GLAS as GCPs. robust evaluation indicators were...

Although mechanisms that contribute to microtubule (MT) aster positioning have been extensively studied, still little is known on how asters move inside cells to faithfully target a cellular location. Here, we study sperm aster centration in sea urchin eggs, as a stereotypical large-scale aster movement with extreme constraints on centering speed and precision. By tracking three-dimensional ast...

Freshwater resources present in the Upper Indus Basin (UIB) supply water to Pakistan’s irrigation. Half of annual discharge UIB is contributed from glacier and snow-fed basins Hindu Kush, Karakoram, Himalaya (HKH) region, it currently under threat climate change. Therefore, very necessary study monitor spatiotemporal changes snow cover area (SCA) its response variables efficiently manage reserv...