Circumpolar mapping of permafrost temperature and thaw depth in the ESA Permafrost CCI project
Permafrost is an Essential Climate Variable (ECV) within the Global Climate Observing System (GCOS), which is characterized by subsurface temperatures and the depth of the seasonal thaw layer. Complementing ground-based monitoring networks, the Permafrost CCI project funded by the European Space Age...
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ftawi:oai:epic.awi.de:50814 2023-05-15T15:12:28+02:00 Circumpolar mapping of permafrost temperature and thaw depth in the ESA Permafrost CCI project Westermann, Sebastian Strozzi, Tazio Wiesmann, Andreas Aalstad, Kristoffer Fiddes, Joel Kääb, Andreas Obu, Jaroslav Seifert, Frank Martin Grosse, Guido Heim, Birgit Matthes, Heidrun Nitze, Ingmar Rinke, Annette Hugelius, Gustaf Palmtag, Juri Barboux, Chloe Delaloye, Reynald Kroisleitner, Christine Bartsch, Annett 2018-12-12 https://epic.awi.de/id/eprint/50814/ https://hdl.handle.net/10013/epic.bf00b219-d155-4d5c-93a7-531a89e2c3d7 unknown AGU Westermann, S. orcid:0000-0003-0514-4321 , Strozzi, T. , Wiesmann, A. , Aalstad, K. , Fiddes, J. , Kääb, A. , Obu, J. , Seifert, F. M. , Grosse, G. orcid:0000-0001-5895-2141 , Heim, B. orcid:0000-0003-2614-9391 , Matthes, H. orcid:0000-0001-9913-7696 , Nitze, I. orcid:0000-0002-1165-6852 , Rinke, A. orcid:0000-0002-6685-9219 , Hugelius, G. , Palmtag, J. , Barboux, C. , Delaloye, R. , Kroisleitner, C. and Bartsch, A. (2018) Circumpolar mapping of permafrost temperature and thaw depth in the ESA Permafrost CCI project , AGU Fall Meeting 2018, Washington, D.C., USA, 10 December 2018 - 14 December 2018 . hdl:10013/epic.bf00b219-d155-4d5c-93a7-531a89e2c3d7 EPIC3AGU Fall Meeting 2018, Washington, D.C., USA, 2018-12-10-2018-12-14Washington, D.C., USA, AGU Conference notRev 2018 ftawi 2021-12-24T15:45:09Z Permafrost is an Essential Climate Variable (ECV) within the Global Climate Observing System (GCOS), which is characterized by subsurface temperatures and the depth of the seasonal thaw layer. Complementing ground-based monitoring networks, the Permafrost CCI project funded by the European Space Agency (ESA) 2018-2021 will establish Earth Observation (EO) based products for the permafrost ECV spanning the last two decades. Since ground temperature and thaw depth cannot be directly observed from space-borne sensors, we will ingest a variety of satellite and reanalysis data in a ground thermal model, which allows to quantitatively characterize the changing permafrost systems in Arctic and High-Mountain areas. As recently demonstrated for the Lena River Delta in Northern Siberia, the algorithm uses remotely sensed data sets of Land Surface Temperature (LST), Snow Water Equivalent (SWE) and landcover to drive the transient permafrost model CryoGrid 2, which yields ground temperature at various depths, in addition to thaw depth. For the circumpolar CCI product, we aim for a spatial resolution between 10 and 1km, but ensemble runs will be performed for each pixel to represent the subgrid variability of snow and land cover. The performance of the transient algorithm crucially depends on the correct representation of ground properties, in particular ice and organic contents. Therefore, the project will compile a new subsurface stratigraphy product which also holds great potential for improving Earth System Model results in permafrost environments. We report on simulation runs for various permafrost regions and characterize the accuracy and ability to reproduce trends against ground-based data. Finally, we evaluate the feasibility of future “permafrost reanalysis” products, exploiting the information content of various satellite products to deliver the best possible estimate for the permafrost thermal state over a range of spatial scales. Conference Object Arctic Ice lena river permafrost Siberia Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic |
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Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Permafrost is an Essential Climate Variable (ECV) within the Global Climate Observing System (GCOS), which is characterized by subsurface temperatures and the depth of the seasonal thaw layer. Complementing ground-based monitoring networks, the Permafrost CCI project funded by the European Space Agency (ESA) 2018-2021 will establish Earth Observation (EO) based products for the permafrost ECV spanning the last two decades. Since ground temperature and thaw depth cannot be directly observed from space-borne sensors, we will ingest a variety of satellite and reanalysis data in a ground thermal model, which allows to quantitatively characterize the changing permafrost systems in Arctic and High-Mountain areas. As recently demonstrated for the Lena River Delta in Northern Siberia, the algorithm uses remotely sensed data sets of Land Surface Temperature (LST), Snow Water Equivalent (SWE) and landcover to drive the transient permafrost model CryoGrid 2, which yields ground temperature at various depths, in addition to thaw depth. For the circumpolar CCI product, we aim for a spatial resolution between 10 and 1km, but ensemble runs will be performed for each pixel to represent the subgrid variability of snow and land cover. The performance of the transient algorithm crucially depends on the correct representation of ground properties, in particular ice and organic contents. Therefore, the project will compile a new subsurface stratigraphy product which also holds great potential for improving Earth System Model results in permafrost environments. We report on simulation runs for various permafrost regions and characterize the accuracy and ability to reproduce trends against ground-based data. Finally, we evaluate the feasibility of future “permafrost reanalysis” products, exploiting the information content of various satellite products to deliver the best possible estimate for the permafrost thermal state over a range of spatial scales. |
format |
Conference Object |
author |
Westermann, Sebastian Strozzi, Tazio Wiesmann, Andreas Aalstad, Kristoffer Fiddes, Joel Kääb, Andreas Obu, Jaroslav Seifert, Frank Martin Grosse, Guido Heim, Birgit Matthes, Heidrun Nitze, Ingmar Rinke, Annette Hugelius, Gustaf Palmtag, Juri Barboux, Chloe Delaloye, Reynald Kroisleitner, Christine Bartsch, Annett |
spellingShingle |
Westermann, Sebastian Strozzi, Tazio Wiesmann, Andreas Aalstad, Kristoffer Fiddes, Joel Kääb, Andreas Obu, Jaroslav Seifert, Frank Martin Grosse, Guido Heim, Birgit Matthes, Heidrun Nitze, Ingmar Rinke, Annette Hugelius, Gustaf Palmtag, Juri Barboux, Chloe Delaloye, Reynald Kroisleitner, Christine Bartsch, Annett Circumpolar mapping of permafrost temperature and thaw depth in the ESA Permafrost CCI project |
author_facet |
Westermann, Sebastian Strozzi, Tazio Wiesmann, Andreas Aalstad, Kristoffer Fiddes, Joel Kääb, Andreas Obu, Jaroslav Seifert, Frank Martin Grosse, Guido Heim, Birgit Matthes, Heidrun Nitze, Ingmar Rinke, Annette Hugelius, Gustaf Palmtag, Juri Barboux, Chloe Delaloye, Reynald Kroisleitner, Christine Bartsch, Annett |
author_sort |
Westermann, Sebastian |
title |
Circumpolar mapping of permafrost temperature and thaw depth in the ESA Permafrost CCI project |
title_short |
Circumpolar mapping of permafrost temperature and thaw depth in the ESA Permafrost CCI project |
title_full |
Circumpolar mapping of permafrost temperature and thaw depth in the ESA Permafrost CCI project |
title_fullStr |
Circumpolar mapping of permafrost temperature and thaw depth in the ESA Permafrost CCI project |
title_full_unstemmed |
Circumpolar mapping of permafrost temperature and thaw depth in the ESA Permafrost CCI project |
title_sort |
circumpolar mapping of permafrost temperature and thaw depth in the esa permafrost cci project |
publisher |
AGU |
publishDate |
2018 |
url |
https://epic.awi.de/id/eprint/50814/ https://hdl.handle.net/10013/epic.bf00b219-d155-4d5c-93a7-531a89e2c3d7 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice lena river permafrost Siberia |
genre_facet |
Arctic Ice lena river permafrost Siberia |
op_source |
EPIC3AGU Fall Meeting 2018, Washington, D.C., USA, 2018-12-10-2018-12-14Washington, D.C., USA, AGU |
op_relation |
Westermann, S. orcid:0000-0003-0514-4321 , Strozzi, T. , Wiesmann, A. , Aalstad, K. , Fiddes, J. , Kääb, A. , Obu, J. , Seifert, F. M. , Grosse, G. orcid:0000-0001-5895-2141 , Heim, B. orcid:0000-0003-2614-9391 , Matthes, H. orcid:0000-0001-9913-7696 , Nitze, I. orcid:0000-0002-1165-6852 , Rinke, A. orcid:0000-0002-6685-9219 , Hugelius, G. , Palmtag, J. , Barboux, C. , Delaloye, R. , Kroisleitner, C. and Bartsch, A. (2018) Circumpolar mapping of permafrost temperature and thaw depth in the ESA Permafrost CCI project , AGU Fall Meeting 2018, Washington, D.C., USA, 10 December 2018 - 14 December 2018 . hdl:10013/epic.bf00b219-d155-4d5c-93a7-531a89e2c3d7 |
_version_ |
1766343146279534592 |