Circumpolar patterns of potential mean annual ground temperature based on surface state obtained from microwave satellite data

Kroisleitner, Christine; Bartsch, Annett; Bergstedt, Helena

doi:https://doi.org/10.5194/tc-12-2349-2018

Articles | Volume 12, issue 7

https://doi.org/10.5194/tc-12-2349-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Changing Permafrost in the Arctic and its Global Effects in...

https://doi.org/10.5194/tc-12-2349-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 7

Research article

|

18 Jul 2018

Research article |

| 18 Jul 2018

Circumpolar patterns of potential mean annual ground temperature based on surface state obtained from microwave satellite data

Christine Kroisleitner, Annett Bartsch, and Helena Bergstedt

Data sets

ESA DUE GlobPermafrost project webgis and catalogue AWI http://maps.awi.de/map/map.html?cu=globpermafrost_arctic

Circumpolar Landscape Units, links to GeoTIFFs A. Bartsch, C. Kroisleitner, and B. Heim https://doi.org/10.1594/PANGAEA.864508

Short summary

Knowledge about permafrost extent is required with respect to climate change. We used borehole temperature records from across the Arctic for the assessment of surface status information (frozen or unfrozen) derived from space-borne microwave sensors for permafrost extent mapping. The comparison to mean annual ground temperature (MAGT) at the coldest sensor depth revealed that not only extent but also temperature can be obtained from C-band-derived surface state with a residual error of 2.22 °C.