Impact of a Fram Strait cyclone on ice edge, drift, divergence, and concentration: Possibilities and limits of an observational analysis
This study aims at the determination of a Fram Strait cyclone track and of the cyclone's impact on ice edge, drift, divergence, and concentration. A 24 h period on 13–14 March 2002 framed by two RADARSAT images is analyzed. Data are included from autonomous ice buoys, a research vessel, Special...
Published in: | Journal of Geophysical Research: Oceans |
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Language: | English |
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AGU (American Geophysical Union)
2008
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Online Access: | https://oceanrep.geomar.de/id/eprint/28485/ https://oceanrep.geomar.de/id/eprint/28485/1/Bruemmer_et_al-2008-Journal_of_Geophysical_Research__Oceans_%281978_2012%29.pdf https://doi.org/10.1029/2007JC004149 |
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ftoceanrep:oai:oceanrep.geomar.de:28485 2023-05-15T16:18:04+02:00 Impact of a Fram Strait cyclone on ice edge, drift, divergence, and concentration: Possibilities and limits of an observational analysis Brümmer, Burghard Schröder, David Müller, Gerd Spreen, Gunnar Jahnke-Bornemann, Annika Launiainen, Jouko 2008 text https://oceanrep.geomar.de/id/eprint/28485/ https://oceanrep.geomar.de/id/eprint/28485/1/Bruemmer_et_al-2008-Journal_of_Geophysical_Research__Oceans_%281978_2012%29.pdf https://doi.org/10.1029/2007JC004149 en eng AGU (American Geophysical Union) https://oceanrep.geomar.de/id/eprint/28485/1/Bruemmer_et_al-2008-Journal_of_Geophysical_Research__Oceans_%281978_2012%29.pdf Brümmer, B., Schröder, D., Müller, G., Spreen, G., Jahnke-Bornemann, A. and Launiainen, J. (2008) Impact of a Fram Strait cyclone on ice edge, drift, divergence, and concentration: Possibilities and limits of an observational analysis. Journal of Geophysical Research-Oceans, 113 (C12). DOI 10.1029/2007JC004149 <https://doi.org/10.1029/2007JC004149>. doi:10.1029/2007JC004149 cc_by_nc_3.0 Article PeerReviewed 2008 ftoceanrep https://doi.org/10.1029/2007JC004149 2023-04-07T15:18:46Z This study aims at the determination of a Fram Strait cyclone track and of the cyclone's impact on ice edge, drift, divergence, and concentration. A 24 h period on 13–14 March 2002 framed by two RADARSAT images is analyzed. Data are included from autonomous ice buoys, a research vessel, Special Sensor Microwave Imager (SSM/I) and QuikSCAT satellite, and the operational European Centre for Medium-Range Weather Forecasts (ECMWF) model. During this 24 h period the cyclone moved northward along the western ice edge in the Fram Strait, crossed the northern ice edge, made a left-turn loop with 150 km diameter over the sea ice, and returned to the northern ice edge. The ECMWF analysis places the cyclone track 100 km too far west over the sea ice, a deviation which is too large for representative sea ice simulations. On the east side of the northward moving cyclone, the ice edge was pushed northward by 55 km because of strong winds. On the rear side, the ice edge advanced toward the open water but by a smaller distance because of weaker winds there. The ice drift pattern as calculated from the ice buoys and the two RADARSAT images is cyclonically curved around the center of the cyclone loop. Ice drift divergence shows a spatial pattern with divergence in the loop center and a zone of convergence around. Ice concentration changes as retrieved from SSM/I data follow the divergence pattern such that sea ice concentration increased in areas of divergence and decreased in areas of convergence. Article in Journal/Newspaper Fram Strait Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Journal of Geophysical Research: Oceans 113 C12 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
This study aims at the determination of a Fram Strait cyclone track and of the cyclone's impact on ice edge, drift, divergence, and concentration. A 24 h period on 13–14 March 2002 framed by two RADARSAT images is analyzed. Data are included from autonomous ice buoys, a research vessel, Special Sensor Microwave Imager (SSM/I) and QuikSCAT satellite, and the operational European Centre for Medium-Range Weather Forecasts (ECMWF) model. During this 24 h period the cyclone moved northward along the western ice edge in the Fram Strait, crossed the northern ice edge, made a left-turn loop with 150 km diameter over the sea ice, and returned to the northern ice edge. The ECMWF analysis places the cyclone track 100 km too far west over the sea ice, a deviation which is too large for representative sea ice simulations. On the east side of the northward moving cyclone, the ice edge was pushed northward by 55 km because of strong winds. On the rear side, the ice edge advanced toward the open water but by a smaller distance because of weaker winds there. The ice drift pattern as calculated from the ice buoys and the two RADARSAT images is cyclonically curved around the center of the cyclone loop. Ice drift divergence shows a spatial pattern with divergence in the loop center and a zone of convergence around. Ice concentration changes as retrieved from SSM/I data follow the divergence pattern such that sea ice concentration increased in areas of divergence and decreased in areas of convergence. |
format |
Article in Journal/Newspaper |
author |
Brümmer, Burghard Schröder, David Müller, Gerd Spreen, Gunnar Jahnke-Bornemann, Annika Launiainen, Jouko |
spellingShingle |
Brümmer, Burghard Schröder, David Müller, Gerd Spreen, Gunnar Jahnke-Bornemann, Annika Launiainen, Jouko Impact of a Fram Strait cyclone on ice edge, drift, divergence, and concentration: Possibilities and limits of an observational analysis |
author_facet |
Brümmer, Burghard Schröder, David Müller, Gerd Spreen, Gunnar Jahnke-Bornemann, Annika Launiainen, Jouko |
author_sort |
Brümmer, Burghard |
title |
Impact of a Fram Strait cyclone on ice edge, drift, divergence, and concentration: Possibilities and limits of an observational analysis |
title_short |
Impact of a Fram Strait cyclone on ice edge, drift, divergence, and concentration: Possibilities and limits of an observational analysis |
title_full |
Impact of a Fram Strait cyclone on ice edge, drift, divergence, and concentration: Possibilities and limits of an observational analysis |
title_fullStr |
Impact of a Fram Strait cyclone on ice edge, drift, divergence, and concentration: Possibilities and limits of an observational analysis |
title_full_unstemmed |
Impact of a Fram Strait cyclone on ice edge, drift, divergence, and concentration: Possibilities and limits of an observational analysis |
title_sort |
impact of a fram strait cyclone on ice edge, drift, divergence, and concentration: possibilities and limits of an observational analysis |
publisher |
AGU (American Geophysical Union) |
publishDate |
2008 |
url |
https://oceanrep.geomar.de/id/eprint/28485/ https://oceanrep.geomar.de/id/eprint/28485/1/Bruemmer_et_al-2008-Journal_of_Geophysical_Research__Oceans_%281978_2012%29.pdf https://doi.org/10.1029/2007JC004149 |
genre |
Fram Strait Sea ice |
genre_facet |
Fram Strait Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/28485/1/Bruemmer_et_al-2008-Journal_of_Geophysical_Research__Oceans_%281978_2012%29.pdf Brümmer, B., Schröder, D., Müller, G., Spreen, G., Jahnke-Bornemann, A. and Launiainen, J. (2008) Impact of a Fram Strait cyclone on ice edge, drift, divergence, and concentration: Possibilities and limits of an observational analysis. Journal of Geophysical Research-Oceans, 113 (C12). DOI 10.1029/2007JC004149 <https://doi.org/10.1029/2007JC004149>. doi:10.1029/2007JC004149 |
op_rights |
cc_by_nc_3.0 |
op_doi |
https://doi.org/10.1029/2007JC004149 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
113 |
container_issue |
C12 |
_version_ |
1766004130735718400 |