Impact of snow accumulation on CryoSat-2 range retrievals over Arctic sea ice: An observational approach with buoy data
Radar altimetry measurements of the current satellite mission CryoSat-2 show an increase of Arctic sea ice thickness in autumn 2013, compared to previous years but also related to March 2013. Such an increase over the melting season seems unlikely and needs to be investigated. Recent studies show th...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Wiley
2015
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/39672/ https://doi.org/10.1002/2015GL064081 https://hdl.handle.net/10013/epic.46821 |
id |
ftawi:oai:epic.awi.de:39672 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:39672 2023-05-15T14:27:06+02:00 Impact of snow accumulation on CryoSat-2 range retrievals over Arctic sea ice: An observational approach with buoy data Ricker, Robert Hendricks, Stefan Perovich, Donald K. Helm, Veit Gerdes, Rüdiger 2015 https://epic.awi.de/id/eprint/39672/ https://doi.org/10.1002/2015GL064081 https://hdl.handle.net/10013/epic.46821 unknown Wiley Ricker, R. orcid:0000-0001-6928-7757 , Hendricks, S. orcid:0000-0002-1412-3146 , Perovich, D. K. , Helm, V. and Gerdes, R. (2015) Impact of snow accumulation on CryoSat-2 range retrievals over Arctic sea ice: An observational approach with buoy data , Geophysical Research Letters, 42 (11), pp. 4447-4455 . doi:10.1002/2015GL064081 <https://doi.org/10.1002/2015GL064081> , hdl:10013/epic.46821 EPIC3Geophysical Research Letters, Wiley, 42(11), pp. 4447-4455 Article peerRev 2015 ftawi https://doi.org/10.1002/2015GL064081 2021-12-24T15:41:05Z Radar altimetry measurements of the current satellite mission CryoSat-2 show an increase of Arctic sea ice thickness in autumn 2013, compared to previous years but also related to March 2013. Such an increase over the melting season seems unlikely and needs to be investigated. Recent studies show that the influence of the snow cover is not negligible and can highly affect the CryoSat-2 range retrievals if it is assumed that the main scattering horizon is given by the snow-ice interface. Our analysis of Arctic ice mass balance buoy records and coincident CryoSat-2 data between 2012 and 2014 adds observational evidence to these findings. Linear trends of snow and ice freeboard measurements from buoys and nearby CryoSat-2 freeboard retrievals are calculated during accumulation events. We find a positive correlation between buoy snow freeboard and CryoSat-2 freeboard estimates, revealing that early snow accumulation might have caused a bias in CryoSat-2 sea ice thickness in autumn 2013. Article in Journal/Newspaper Arctic Arctic Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Geophysical Research Letters 42 11 4447 4455 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Radar altimetry measurements of the current satellite mission CryoSat-2 show an increase of Arctic sea ice thickness in autumn 2013, compared to previous years but also related to March 2013. Such an increase over the melting season seems unlikely and needs to be investigated. Recent studies show that the influence of the snow cover is not negligible and can highly affect the CryoSat-2 range retrievals if it is assumed that the main scattering horizon is given by the snow-ice interface. Our analysis of Arctic ice mass balance buoy records and coincident CryoSat-2 data between 2012 and 2014 adds observational evidence to these findings. Linear trends of snow and ice freeboard measurements from buoys and nearby CryoSat-2 freeboard retrievals are calculated during accumulation events. We find a positive correlation between buoy snow freeboard and CryoSat-2 freeboard estimates, revealing that early snow accumulation might have caused a bias in CryoSat-2 sea ice thickness in autumn 2013. |
format |
Article in Journal/Newspaper |
author |
Ricker, Robert Hendricks, Stefan Perovich, Donald K. Helm, Veit Gerdes, Rüdiger |
spellingShingle |
Ricker, Robert Hendricks, Stefan Perovich, Donald K. Helm, Veit Gerdes, Rüdiger Impact of snow accumulation on CryoSat-2 range retrievals over Arctic sea ice: An observational approach with buoy data |
author_facet |
Ricker, Robert Hendricks, Stefan Perovich, Donald K. Helm, Veit Gerdes, Rüdiger |
author_sort |
Ricker, Robert |
title |
Impact of snow accumulation on CryoSat-2 range retrievals over Arctic sea ice: An observational approach with buoy data |
title_short |
Impact of snow accumulation on CryoSat-2 range retrievals over Arctic sea ice: An observational approach with buoy data |
title_full |
Impact of snow accumulation on CryoSat-2 range retrievals over Arctic sea ice: An observational approach with buoy data |
title_fullStr |
Impact of snow accumulation on CryoSat-2 range retrievals over Arctic sea ice: An observational approach with buoy data |
title_full_unstemmed |
Impact of snow accumulation on CryoSat-2 range retrievals over Arctic sea ice: An observational approach with buoy data |
title_sort |
impact of snow accumulation on cryosat-2 range retrievals over arctic sea ice: an observational approach with buoy data |
publisher |
Wiley |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/39672/ https://doi.org/10.1002/2015GL064081 https://hdl.handle.net/10013/epic.46821 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Sea ice |
genre_facet |
Arctic Arctic Sea ice |
op_source |
EPIC3Geophysical Research Letters, Wiley, 42(11), pp. 4447-4455 |
op_relation |
Ricker, R. orcid:0000-0001-6928-7757 , Hendricks, S. orcid:0000-0002-1412-3146 , Perovich, D. K. , Helm, V. and Gerdes, R. (2015) Impact of snow accumulation on CryoSat-2 range retrievals over Arctic sea ice: An observational approach with buoy data , Geophysical Research Letters, 42 (11), pp. 4447-4455 . doi:10.1002/2015GL064081 <https://doi.org/10.1002/2015GL064081> , hdl:10013/epic.46821 |
op_doi |
https://doi.org/10.1002/2015GL064081 |
container_title |
Geophysical Research Letters |
container_volume |
42 |
container_issue |
11 |
container_start_page |
4447 |
op_container_end_page |
4455 |
_version_ |
1766300680575778816 |