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  Soil Moisture from Metop ASCAT Data at High Latitudes

Bartsch, A., Melzer, T., Elger, K., Heim, B. (2012): Soil Moisture from Metop ASCAT Data at High Latitudes. - In: Hinkel, K. M. (Ed.), Proceedings of the Tenth International Conference on Permafrost Salekhard, Yamal-Nenets Autonomous District, Russia June 25–29, 2012; Volume 1: International Contributions, Salekhard : The Northern Publisher, 33-38.

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 Urheber:
Bartsch, Annett1, Autor
Melzer, Thomas1, Autor
Elger, Kirsten2, Autor              
Heim, Birgit1, Autor
Affiliations:
1External Organizations, ou_persistent22              
20 Pre-GFZ, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146023              

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Schlagwörter: remote sensing; active microwave; tundra; time series; soil moisture.
 Zusammenfassung: Several global satellite-derived soil moisture datasets exist to date. They are based on analyses of passive or active microwave data. Resolution is coarse at 25 km, but temporal sampling is very high. A monitoring service for applications at high latitudes is implemented within the European Space Agency (ESA) data User Element (DUE) initiative ‘Permafrost.’ Measurements are based on Metop ASCAT, a European active microwave instrument (scatterometer, C-band). This study discusses comparisons between these data and in situ measurements from Alaska. Weekly averaged values have been compared to soil moisture records at several USDA stations. Results show that in situ soil moisture measurements at shallow depths reflect variations of satellite-derived relative near-surface soil moisture although the used sensor provides data at only 25 km resolution. There are indications that this relationship is impacted by micro-topography and temporal offsets related to snowmelt and active layer dynamics.

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 Datum: 2012
 Publikationsstatus: Final veröffentlicht
 Seiten: 6
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: URI: http://hdl.handle.net/10013/epic.39832
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Titel: Proceedings of the Tenth International Conference on Permafrost Salekhard, Yamal-Nenets Autonomous District, Russia June 25–29, 2012 ; Volume 1: International Contributions
Genre der Quelle: Konferenzband
 Urheber:
Hinkel, Kenneth M., Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: Salekhard : The Northern Publisher
Seiten: 492 Band / Heft: Vol.1 Artikelnummer: - Start- / Endseite: 33 - 38 Identifikator: ISBN: 978-5-905911-01-9