Characteristics of Arctic winds at CANDAC-PEARL (80 degrees N, 86 degrees W) and Svalbard (78 degrees N, 16 degrees E) for 2006-2009: radar observations and comparisons with the model CMAM-DAS
Operation of a Meteor Wind Radar (MWR) at Eureka, Ellesmere Island (80° N, 86° W) began in February 2006; this is the location of the Polar Environmental and Atmospheric Research Laboratory (PEARL), operated by the "Canadian Network for the Detection of Atmospheric Change" (CANDAC). The fi...
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Online Access: | https://hdl.handle.net/10037/4085 https://doi.org/10.5194/angeo-29-1927-2011 |
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ftunivtroemsoe:oai:munin.uit.no:10037/4085 2023-05-15T13:05:48+02:00 Characteristics of Arctic winds at CANDAC-PEARL (80 degrees N, 86 degrees W) and Svalbard (78 degrees N, 16 degrees E) for 2006-2009: radar observations and comparisons with the model CMAM-DAS Hall, Chris Manson, Alan Meek, Chris Xu, X Aso, Takehiko Drummond, J. R. Hocking, W. K. Tsutsumi, Masaki Ward, W. E. 2011 https://hdl.handle.net/10037/4085 https://doi.org/10.5194/angeo-29-1927-2011 eng eng Copernicus Annales Geophysicae 29(2011) nr. 10 s. 1927-1938 FRIDAID 850827 doi:10.5194/angeo-29-1927-2011 0992-7689 https://hdl.handle.net/10037/4085 URN:NBN:no-uit_munin_3805 openAccess VDP::Mathematics and natural science: 400::Geosciences: 450::Meteorology: 453 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Meteorologi: 453 Journal article Tidsskriftartikkel Peer reviewed 2011 ftunivtroemsoe https://doi.org/10.5194/angeo-29-1927-2011 2021-06-25T17:53:11Z Operation of a Meteor Wind Radar (MWR) at Eureka, Ellesmere Island (80° N, 86° W) began in February 2006; this is the location of the Polar Environmental and Atmospheric Research Laboratory (PEARL), operated by the "Canadian Network for the Detection of Atmospheric Change" (CANDAC). The first 36 months of wind data (82–97 km) are here combined with contemporaneous winds from the Meteor Wind Radar at Adventdalen, Svalbard (78° N, 16° E), to provide the first evidence for substantial interannual variability (IAV) of longitudinally spaced observations of mean/background winds and waves at such High Arctic latitudes. The influences of "Sudden Stratospheric Warmings" (SSW) are also apparent. Monthly meridional (north-south, NS) 3-year means for each location/radar demonstrate that winds (82–97 km) differ significantly between Canada and Norway, with winter-equinox values generally northward over Eureka and southward over Svalbard. Using January 2008 as case study, these oppositely directed meridional winds are related to mean positions of the Arctic mesospheric vortex. The vortex is from the Canadian Middle Atmosphere Model, with its Data Assimilation System (CMAM-DAS). The characteristics of "Sudden stratospheric Warmings" SSW in each of the three winters are noted, as well as their uniquely distinctive short-term mesospheric wind disturbances. Comparisons of the mean winds over 36 months at 78 and 80° N, with those within CMAM-DAS, are featured. E.g. for 2007, while both monthly mean EW and NS winds from CMAM/radar are quite similar over Eureka (82–88 km), the modeled autumn-winter NS winds over Svalbard (73–88 km) differ significantly from observations. The latter are southward, and the modeled winds over Svalbard are predominately northward. The mean positions of the winter polar vortex are related to these differences. Article in Journal/Newspaper Adventdalen Arctic Ellesmere Island Svalbard University of Tromsø: Munin Open Research Archive Arctic Svalbard Ellesmere Island Canada Norway Eureka ENVELOPE(-85.940,-85.940,79.990,79.990) Adventdalen ENVELOPE(16.264,16.264,78.181,78.181) Annales Geophysicae 29 10 1927 1938 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450::Meteorology: 453 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Meteorologi: 453 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450::Meteorology: 453 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Meteorologi: 453 Hall, Chris Manson, Alan Meek, Chris Xu, X Aso, Takehiko Drummond, J. R. Hocking, W. K. Tsutsumi, Masaki Ward, W. E. Characteristics of Arctic winds at CANDAC-PEARL (80 degrees N, 86 degrees W) and Svalbard (78 degrees N, 16 degrees E) for 2006-2009: radar observations and comparisons with the model CMAM-DAS |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450::Meteorology: 453 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Meteorologi: 453 |
description |
Operation of a Meteor Wind Radar (MWR) at Eureka, Ellesmere Island (80° N, 86° W) began in February 2006; this is the location of the Polar Environmental and Atmospheric Research Laboratory (PEARL), operated by the "Canadian Network for the Detection of Atmospheric Change" (CANDAC). The first 36 months of wind data (82–97 km) are here combined with contemporaneous winds from the Meteor Wind Radar at Adventdalen, Svalbard (78° N, 16° E), to provide the first evidence for substantial interannual variability (IAV) of longitudinally spaced observations of mean/background winds and waves at such High Arctic latitudes. The influences of "Sudden Stratospheric Warmings" (SSW) are also apparent. Monthly meridional (north-south, NS) 3-year means for each location/radar demonstrate that winds (82–97 km) differ significantly between Canada and Norway, with winter-equinox values generally northward over Eureka and southward over Svalbard. Using January 2008 as case study, these oppositely directed meridional winds are related to mean positions of the Arctic mesospheric vortex. The vortex is from the Canadian Middle Atmosphere Model, with its Data Assimilation System (CMAM-DAS). The characteristics of "Sudden stratospheric Warmings" SSW in each of the three winters are noted, as well as their uniquely distinctive short-term mesospheric wind disturbances. Comparisons of the mean winds over 36 months at 78 and 80° N, with those within CMAM-DAS, are featured. E.g. for 2007, while both monthly mean EW and NS winds from CMAM/radar are quite similar over Eureka (82–88 km), the modeled autumn-winter NS winds over Svalbard (73–88 km) differ significantly from observations. The latter are southward, and the modeled winds over Svalbard are predominately northward. The mean positions of the winter polar vortex are related to these differences. |
format |
Article in Journal/Newspaper |
author |
Hall, Chris Manson, Alan Meek, Chris Xu, X Aso, Takehiko Drummond, J. R. Hocking, W. K. Tsutsumi, Masaki Ward, W. E. |
author_facet |
Hall, Chris Manson, Alan Meek, Chris Xu, X Aso, Takehiko Drummond, J. R. Hocking, W. K. Tsutsumi, Masaki Ward, W. E. |
author_sort |
Hall, Chris |
title |
Characteristics of Arctic winds at CANDAC-PEARL (80 degrees N, 86 degrees W) and Svalbard (78 degrees N, 16 degrees E) for 2006-2009: radar observations and comparisons with the model CMAM-DAS |
title_short |
Characteristics of Arctic winds at CANDAC-PEARL (80 degrees N, 86 degrees W) and Svalbard (78 degrees N, 16 degrees E) for 2006-2009: radar observations and comparisons with the model CMAM-DAS |
title_full |
Characteristics of Arctic winds at CANDAC-PEARL (80 degrees N, 86 degrees W) and Svalbard (78 degrees N, 16 degrees E) for 2006-2009: radar observations and comparisons with the model CMAM-DAS |
title_fullStr |
Characteristics of Arctic winds at CANDAC-PEARL (80 degrees N, 86 degrees W) and Svalbard (78 degrees N, 16 degrees E) for 2006-2009: radar observations and comparisons with the model CMAM-DAS |
title_full_unstemmed |
Characteristics of Arctic winds at CANDAC-PEARL (80 degrees N, 86 degrees W) and Svalbard (78 degrees N, 16 degrees E) for 2006-2009: radar observations and comparisons with the model CMAM-DAS |
title_sort |
characteristics of arctic winds at candac-pearl (80 degrees n, 86 degrees w) and svalbard (78 degrees n, 16 degrees e) for 2006-2009: radar observations and comparisons with the model cmam-das |
publisher |
Copernicus |
publishDate |
2011 |
url |
https://hdl.handle.net/10037/4085 https://doi.org/10.5194/angeo-29-1927-2011 |
long_lat |
ENVELOPE(-85.940,-85.940,79.990,79.990) ENVELOPE(16.264,16.264,78.181,78.181) |
geographic |
Arctic Svalbard Ellesmere Island Canada Norway Eureka Adventdalen |
geographic_facet |
Arctic Svalbard Ellesmere Island Canada Norway Eureka Adventdalen |
genre |
Adventdalen Arctic Ellesmere Island Svalbard |
genre_facet |
Adventdalen Arctic Ellesmere Island Svalbard |
op_relation |
Annales Geophysicae 29(2011) nr. 10 s. 1927-1938 FRIDAID 850827 doi:10.5194/angeo-29-1927-2011 0992-7689 https://hdl.handle.net/10037/4085 URN:NBN:no-uit_munin_3805 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.5194/angeo-29-1927-2011 |
container_title |
Annales Geophysicae |
container_volume |
29 |
container_issue |
10 |
container_start_page |
1927 |
op_container_end_page |
1938 |
_version_ |
1766394049965588480 |