Warmedinger, Leena Julia und Huber, Martin und Anand, Mira und Lehner, Bernhard und Walper, Carolin und Gorzawski, Larissa und Thieme, Michele und Wessel, Birgit (2023) The new hydrographic HydroSHEDS database derived from the TanDEM-X DEM. International Geoscience and Remote Sensing Symposium IGARSS 2023, 2023-07-16 - 2023-07-21, Pasadena, USA.
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Kurzfassung
The HydroSHEDS database provides seamless hydrographic data to support hydro-ecological research and applications on a regional to global scale. A steadily increasing availability and accuracy of remote sensing data promotes the development of a second and refined version of HydroSHEDS, which is based on the TanDEM-X dataset. To derive hydrographic information from the topographic data, the TanDEM-X digital elevation model (DEM) requires editing, which is summarized in the so-called hydrologic pre-conditioning. The processing steps include an infill of voids and outliers in the DEM and the delineation of a global high-resolution coastline. Furthermore, a global water mask is generated to edit rough and noisy appearing open water surfaces in the DEM. An urban correction layer is calculated to reduce distortions in river flow paths due to built-up areas. Within the HydroSHEDS workflow, the pre-conditioning will be complemented with refined hydrological optimization and correction algorithms. Compared to HydroSHEDS v1, the resulting hydrologically conditioned DEM ensures a more accurate derivation of flow direction and flow accumulation maps.
elib-URL des Eintrags: | https://elib.dlr.de/196501/ | ||||||||||||||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||||||||||
Titel: | The new hydrographic HydroSHEDS database derived from the TanDEM-X DEM. | ||||||||||||||||||||||||||||||||||||
Autoren: |
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Datum: | 2023 | ||||||||||||||||||||||||||||||||||||
Referierte Publikation: | Nein | ||||||||||||||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||||||||||
Status: | akzeptierter Beitrag | ||||||||||||||||||||||||||||||||||||
Stichwörter: | Digital Elevation Model, TanDEM-X, Hydrographie | ||||||||||||||||||||||||||||||||||||
Veranstaltungstitel: | International Geoscience and Remote Sensing Symposium IGARSS 2023 | ||||||||||||||||||||||||||||||||||||
Veranstaltungsort: | Pasadena, USA | ||||||||||||||||||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||||||||||||||
Veranstaltungsbeginn: | 16 Juli 2023 | ||||||||||||||||||||||||||||||||||||
Veranstaltungsende: | 21 Juli 2023 | ||||||||||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||||||||||||||
HGF - Programmthema: | Erdbeobachtung | ||||||||||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Fernerkundung u. Geoforschung, R - Unterstützung TerraSAR-X/TanDEM-X Betrieb | ||||||||||||||||||||||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||||||||||||||||||||||
Institute & Einrichtungen: | Deutsches Fernerkundungsdatenzentrum > Dynamik der Landoberfläche | ||||||||||||||||||||||||||||||||||||
Hinterlegt von: | Warmedinger, Leena Julia | ||||||||||||||||||||||||||||||||||||
Hinterlegt am: | 19 Okt 2023 09:31 | ||||||||||||||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:56 |
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