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Mapping snow cover extent using optical and SAR data

Wendleder, Anna and Dietz, Andreas and Schork, Katharina (2018) Mapping snow cover extent using optical and SAR data. In: IEEE International Geoscience and Remote Sensing Symposium (IGARSS), pp. 5108-5111. IGARSS 2018, 22.-27. July 2018, Valenica, Spanien.

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Abstract

Snow cover plays an important role both globally and regionally as it is fundamental for local water availability, river run-off, and groundwater recharge. Hence, the exact knowledge of extent and dynamic of the snow coverage is essential. This study combines synergetic optical and SAR data with the main object to map the snow cover extent. As the Sentinel-Mission provides a wide swath width and a high revisit time (2-3 days at mid-latitudes with same acquisition geometry), the Sentinel-1 Interferometric Wide Swath Mode (IW) SAR data and Sentinel-2 multi-spectral data are used. Additionally, the TanDEM-X DEM is applied for the exact determination of the snow line as well as for snow classification. The mapping of the snow cover extent is applied on the three test sites Devon Island in Canada, Nordenskiöld, Svalbard, and French Alps, France which are characterized by different topography and land cover. The classification achieved an overall accuracy of 85% for Devon Island, 60% for Nordenskiöld and 88 % for the French Alps.

Item URL in elib:https://elib.dlr.de/121922/
Document Type:Conference or Workshop Item (Poster)
Title:Mapping snow cover extent using optical and SAR data
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wendleder, Annaanna.wendleder (at) dlr.deUNSPECIFIED
Dietz, AndreasAndreas.Dietz (at) dlr.deUNSPECIFIED
Schork, KatharinaKatharina.Schork (at) dlr.deUNSPECIFIED
Date:2018
Journal or Publication Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 5108-5111
Status:Published
Keywords:Snow cover extent, optical data, SAR, NDSI, Sentinel-1, Sentinel-2
Event Title:IGARSS 2018
Event Location:Valenica, Spanien
Event Type:international Conference
Event Dates:22.-27. July 2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Remote sensing and geoscience
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Land Surface
Deposited By: Wendleder, Anna
Deposited On:05 Nov 2018 13:31
Last Modified:31 Jul 2019 20:19

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