Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Copernicus DEM"'
Publikováno v:
Geology, Ecology, and Landscapes, Vol 8, Iss 2, Pp 101-128 (2024)
ABSTRACTThe open source 30 m Copernicus DEM (COP-DEM) has been used to derive the geo-morphometric and topo-hydrological characteristics of Betwa River Basin. Drainage network with 7th order stream and mostly dendritic pattern has been delineated usi
Externí odkaz:
https://doaj.org/article/575379c8887343a89840b5cda2bae5c5
Autor:
Peter L. Guth, Sebastiano Trevisani, Carlos H. Grohmann, John Lindsay, Dean Gesch, Laurence Hawker, Conrad Bielski
Publikováno v:
Remote Sensing, Vol 16, Iss 17, p 3273 (2024)
At least 10 global digital elevation models (DEMs) at one-arc-second resolution now cover Earth. Comparing derived grids, like slope or curvature, preserves surface spatial relationships, and can be more important than just elevation values. Such com
Externí odkaz:
https://doaj.org/article/09492b430b7f4afc833ab2e1c54f58dd
Autor:
Vladimir Tabunshchik, Roman Gorbunov, Tatiana Gorbunova, Cam Nhung Pham, Aleksandra Klyuchkina
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
Since the end of the 20th century, the use of geographic information systems and digital elevation models has reduced the time required for and improved the quality of morphometric analysis of the relief within river basins. However, researchers are
Externí odkaz:
https://doaj.org/article/3a81baf7a32b49f2bdae8dd59f819c11
Publikováno v:
International Journal of Digital Earth, Vol 15, Iss 1, Pp 1149-1168 (2022)
A good understanding of the quality of digital elevation model (DEM) is a perquisite for various applications. This study investigates the accuracy of three most recently released 1-arcsec global DEMs (GDEMs, Copernicus, NASA and AW3D30) in five sele
Externí odkaz:
https://doaj.org/article/9e32aa4d729941c09ef3bc8b23e7effa
Akademický článek
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Publikováno v:
ISPRS International Journal of Geo-Information, Vol 12, Iss 3, p 99 (2023)
Recent Digital Surface, Elevation, and Bathymetric Models (DSM/DEM/DBM) aim to provide high-resolution and accurate height and depth information needed for a variety of surveying, geodetic, geophysical, and other applications. In this study, first we
Externí odkaz:
https://doaj.org/article/22d0f6c3b8ee4e84bcf005136a48d490
Autor:
Benjamin Purinton, Bodo Bookhagen
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
Quantitative geomorphic research depends on accurate topographic data often collected via remote sensing. Lidar, and photogrammetric methods like structure-from-motion, provide the highest quality data for generating digital elevation models (DEMs).
Externí odkaz:
https://doaj.org/article/2591b4ccaea24c228f51b57d5ee8922a
Akademický článek
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Autor:
Julio Garrote
Publikováno v:
Water, Vol 14, Iss 2, p 176 (2022)
Flood hazard and risk analysis in developing countries is a difficult task due to the absence or scarce availability of flow data and digital elevation models (DEMs) with the necessary quality. Up to eight DEMs (ALOS Palsar, Aster GDEM, Bare Earth DE
Externí odkaz:
https://doaj.org/article/3a2037587001470db2866b56ab5b9ff0
Autor:
Jana Marešová, Kateřina Gdulová, Petra Pracná, David Moravec, Lukáš Gábor, Jiří Prošek, Vojtěch Barták, Vítězslav Moudrý
Publikováno v:
Remote Sensing, Vol 13, Iss 19, p 3931 (2021)
Several global digital elevation models (DEMs) have been developed in the last two decades. The most recent addition to the family of global DEMs is the TanDEM-X DEM. The original version of the TanDEM-X DEM is, however, a nonedited product (i.e., it
Externí odkaz:
https://doaj.org/article/d332a5efeb79432c9786e67416804df7