English
 
Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Book Chapter

Soil Moisture from Metop ASCAT Data at High Latitudes

Authors

Bartsch,  Annett
External Organizations;

Melzer,  Thomas
External Organizations;

/persons/resource/kelger

Elger,  Kirsten
0 Pre-GFZ, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Heim,  Birgit
External Organizations;

External Ressource
No external resources are shared
Fulltext (public)

1453933.pdf
(Publisher version), 769KB

Supplementary Material (public)
There is no public supplementary material available
Citation

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.


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_1453933
Abstract
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.