Observation of melt onset in an Arctic Tundra landscape using high resolution TerraSAR-X and RADARSAT-2 data
Melt and thaw of snow, ice, and soil are important processes for the hydrological cycle as well as for energy fluxes. Remote sensing from space allows the monitoring of vast uninhabitated regions like the Siberian Arctic. This study presents results from monitoring of snowmelt events during spring,...
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ftawi:oai:epic.awi.de:30918 2024-09-15T17:50:59+00:00 Observation of melt onset in an Arctic Tundra landscape using high resolution TerraSAR-X and RADARSAT-2 data Sobiech, Jennifer Boike, Julia Dierking, Wolfgang 2012-07-25 https://epic.awi.de/id/eprint/30918/ https://hdl.handle.net/10013/epic.39820 unknown Sobiech, J. , Boike, J. orcid:0000-0002-5875-2112 and Dierking, W. orcid:0000-0002-5031-648X (2012) Observation of melt onset in an Arctic Tundra landscape using high resolution TerraSAR-X and RADARSAT-2 data , IGARSS, Munich, Germany, 22 July 2012 - 27 July 2012 . hdl:10013/epic.39820 EPIC3IGARSS, Munich, Germany, 2012-07-22-2012-07-27 Conference notRev 2012 ftawi 2024-06-24T04:05:07Z Melt and thaw of snow, ice, and soil are important processes for the hydrological cycle as well as for energy fluxes. Remote sensing from space allows the monitoring of vast uninhabitated regions like the Siberian Arctic. This study presents results from monitoring of snowmelt events during spring, the thaw of the active layer on different geomorphological units on tundra land surfaces, as well as lake-ice decay from high resolution TerraSAR-X and quad-pol RADARSAT-2 timeseries acquired over the central Lena Delta, Siberia. The main findings are that X-band data do not show a backscatter difference between frozen and thawed soils, whereas the C-band backscatter rises in the order of 3\,dB. Polarimetric decompositions show the spatial extend of snowmelt events and help to distinguish between different geomorphological units. The high spatial resolution of the TerraSAR-X images is extremely helpful to distinguish between land surfaces and the frequent ponds in the investigation area. Conference Object Arctic lena delta Tundra Siberia Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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description |
Melt and thaw of snow, ice, and soil are important processes for the hydrological cycle as well as for energy fluxes. Remote sensing from space allows the monitoring of vast uninhabitated regions like the Siberian Arctic. This study presents results from monitoring of snowmelt events during spring, the thaw of the active layer on different geomorphological units on tundra land surfaces, as well as lake-ice decay from high resolution TerraSAR-X and quad-pol RADARSAT-2 timeseries acquired over the central Lena Delta, Siberia. The main findings are that X-band data do not show a backscatter difference between frozen and thawed soils, whereas the C-band backscatter rises in the order of 3\,dB. Polarimetric decompositions show the spatial extend of snowmelt events and help to distinguish between different geomorphological units. The high spatial resolution of the TerraSAR-X images is extremely helpful to distinguish between land surfaces and the frequent ponds in the investigation area. |
format |
Conference Object |
author |
Sobiech, Jennifer Boike, Julia Dierking, Wolfgang |
spellingShingle |
Sobiech, Jennifer Boike, Julia Dierking, Wolfgang Observation of melt onset in an Arctic Tundra landscape using high resolution TerraSAR-X and RADARSAT-2 data |
author_facet |
Sobiech, Jennifer Boike, Julia Dierking, Wolfgang |
author_sort |
Sobiech, Jennifer |
title |
Observation of melt onset in an Arctic Tundra landscape using high resolution TerraSAR-X and RADARSAT-2 data |
title_short |
Observation of melt onset in an Arctic Tundra landscape using high resolution TerraSAR-X and RADARSAT-2 data |
title_full |
Observation of melt onset in an Arctic Tundra landscape using high resolution TerraSAR-X and RADARSAT-2 data |
title_fullStr |
Observation of melt onset in an Arctic Tundra landscape using high resolution TerraSAR-X and RADARSAT-2 data |
title_full_unstemmed |
Observation of melt onset in an Arctic Tundra landscape using high resolution TerraSAR-X and RADARSAT-2 data |
title_sort |
observation of melt onset in an arctic tundra landscape using high resolution terrasar-x and radarsat-2 data |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/30918/ https://hdl.handle.net/10013/epic.39820 |
genre |
Arctic lena delta Tundra Siberia |
genre_facet |
Arctic lena delta Tundra Siberia |
op_source |
EPIC3IGARSS, Munich, Germany, 2012-07-22-2012-07-27 |
op_relation |
Sobiech, J. , Boike, J. orcid:0000-0002-5875-2112 and Dierking, W. orcid:0000-0002-5031-648X (2012) Observation of melt onset in an Arctic Tundra landscape using high resolution TerraSAR-X and RADARSAT-2 data , IGARSS, Munich, Germany, 22 July 2012 - 27 July 2012 . hdl:10013/epic.39820 |
_version_ |
1810292793893978112 |