Monthly mean climatology of the prevailing winds and tides in the Arctic mesosphere/lower thermosphere
The Arctic MLT wind regime parameters measured at the ground-based network of MF and meteor radar stations (Andenes 69° N, Tromsø 70° N, Esrange 68° N, Dixon 73.5° N, Poker Flat 65° N and Resolute Bay 75° N) are discussed and compared with those observed in the mid-latitudes. The network of the grou...
Published in: | Annales Geophysicae |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2004
|
Subjects: | |
Online Access: | https://doi.org/10.5194/angeo-22-3395-2004 https://doaj.org/article/58515243c7cd46fca6bb905a61db43c7 |
id |
ftdoajarticles:oai:doaj.org/article:58515243c7cd46fca6bb905a61db43c7 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:58515243c7cd46fca6bb905a61db43c7 2023-05-15T13:25:13+02:00 Monthly mean climatology of the prevailing winds and tides in the Arctic mesosphere/lower thermosphere Y. I. Portnyagin T. V. Solovjova N. A. Makarov E. G. Merzlyakov A. H. Manson C. E. Meek W. Hocking N. Mitchell D. Pancheva P. Hoffmann W. Singer Y. Murayama K. Igarashi J. M. Forbes S. Palo C. Hall S. Nozawa 2004-11-01T00:00:00Z https://doi.org/10.5194/angeo-22-3395-2004 https://doaj.org/article/58515243c7cd46fca6bb905a61db43c7 EN eng Copernicus Publications https://www.ann-geophys.net/22/3395/2004/angeo-22-3395-2004.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-22-3395-2004 0992-7689 1432-0576 https://doaj.org/article/58515243c7cd46fca6bb905a61db43c7 Annales Geophysicae, Vol 22, Pp 3395-3410 (2004) Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 article 2004 ftdoajarticles https://doi.org/10.5194/angeo-22-3395-2004 2022-12-31T08:29:25Z The Arctic MLT wind regime parameters measured at the ground-based network of MF and meteor radar stations (Andenes 69° N, Tromsø 70° N, Esrange 68° N, Dixon 73.5° N, Poker Flat 65° N and Resolute Bay 75° N) are discussed and compared with those observed in the mid-latitudes. The network of the ground-based MF and meteor radars for measuring winds in the Arctic upper mesosphere and lower thermosphere provides an excellent opportunity for study of the main global dynamical structures in this height region and their dependence from longitude. Preliminary estimates of the differences between the measured winds and tides from the different radar types, situated 125-273km apart (Tromsø, Andenes and Esrange), are provided. Despite some differences arising from using different types of radars it is possible to study the dynamical wind structures. It is revealed that most of the observed dynamical structures are persistent from year to year, thus permitting the analysis of the Arctic MLT dynamics in a climatological sense. The seasonal behaviour of the zonally averaged wind parameters is, to some extent, similar to that observed at the moderate latitudes. However, the strength of the winds (except the prevailing meridional wind and the diurnal tide amplitudes) in the Arctic MLT region is, in general, less than that detected at the moderate latitudes, decreasing toward the pole. There are also some features in the vertical structure and seasonal variations of the Arctic MLT winds which are different from the expectations of the well-known empirical wind models CIRA-86 and HWM-93. The tidal phases show a very definite longitudinal dependence that permits the determination of the corresponding zonal wave numbers. It is shown that the migrating tides play an important role in the dynamics of the Arctic MLT region. However, there are clear indications with the presence in some months of non-migrating tidal modes of significant appreciable amplitude. Article in Journal/Newspaper Andenes Arctic Resolute Bay Tromsø Directory of Open Access Journals: DOAJ Articles Arctic Tromsø Resolute Bay ENVELOPE(-94.842,-94.842,74.677,74.677) Esrange ENVELOPE(21.117,21.117,67.883,67.883) Annales Geophysicae 22 10 3395 3410 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 Y. I. Portnyagin T. V. Solovjova N. A. Makarov E. G. Merzlyakov A. H. Manson C. E. Meek W. Hocking N. Mitchell D. Pancheva P. Hoffmann W. Singer Y. Murayama K. Igarashi J. M. Forbes S. Palo C. Hall S. Nozawa Monthly mean climatology of the prevailing winds and tides in the Arctic mesosphere/lower thermosphere |
topic_facet |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
description |
The Arctic MLT wind regime parameters measured at the ground-based network of MF and meteor radar stations (Andenes 69° N, Tromsø 70° N, Esrange 68° N, Dixon 73.5° N, Poker Flat 65° N and Resolute Bay 75° N) are discussed and compared with those observed in the mid-latitudes. The network of the ground-based MF and meteor radars for measuring winds in the Arctic upper mesosphere and lower thermosphere provides an excellent opportunity for study of the main global dynamical structures in this height region and their dependence from longitude. Preliminary estimates of the differences between the measured winds and tides from the different radar types, situated 125-273km apart (Tromsø, Andenes and Esrange), are provided. Despite some differences arising from using different types of radars it is possible to study the dynamical wind structures. It is revealed that most of the observed dynamical structures are persistent from year to year, thus permitting the analysis of the Arctic MLT dynamics in a climatological sense. The seasonal behaviour of the zonally averaged wind parameters is, to some extent, similar to that observed at the moderate latitudes. However, the strength of the winds (except the prevailing meridional wind and the diurnal tide amplitudes) in the Arctic MLT region is, in general, less than that detected at the moderate latitudes, decreasing toward the pole. There are also some features in the vertical structure and seasonal variations of the Arctic MLT winds which are different from the expectations of the well-known empirical wind models CIRA-86 and HWM-93. The tidal phases show a very definite longitudinal dependence that permits the determination of the corresponding zonal wave numbers. It is shown that the migrating tides play an important role in the dynamics of the Arctic MLT region. However, there are clear indications with the presence in some months of non-migrating tidal modes of significant appreciable amplitude. |
format |
Article in Journal/Newspaper |
author |
Y. I. Portnyagin T. V. Solovjova N. A. Makarov E. G. Merzlyakov A. H. Manson C. E. Meek W. Hocking N. Mitchell D. Pancheva P. Hoffmann W. Singer Y. Murayama K. Igarashi J. M. Forbes S. Palo C. Hall S. Nozawa |
author_facet |
Y. I. Portnyagin T. V. Solovjova N. A. Makarov E. G. Merzlyakov A. H. Manson C. E. Meek W. Hocking N. Mitchell D. Pancheva P. Hoffmann W. Singer Y. Murayama K. Igarashi J. M. Forbes S. Palo C. Hall S. Nozawa |
author_sort |
Y. I. Portnyagin |
title |
Monthly mean climatology of the prevailing winds and tides in the Arctic mesosphere/lower thermosphere |
title_short |
Monthly mean climatology of the prevailing winds and tides in the Arctic mesosphere/lower thermosphere |
title_full |
Monthly mean climatology of the prevailing winds and tides in the Arctic mesosphere/lower thermosphere |
title_fullStr |
Monthly mean climatology of the prevailing winds and tides in the Arctic mesosphere/lower thermosphere |
title_full_unstemmed |
Monthly mean climatology of the prevailing winds and tides in the Arctic mesosphere/lower thermosphere |
title_sort |
monthly mean climatology of the prevailing winds and tides in the arctic mesosphere/lower thermosphere |
publisher |
Copernicus Publications |
publishDate |
2004 |
url |
https://doi.org/10.5194/angeo-22-3395-2004 https://doaj.org/article/58515243c7cd46fca6bb905a61db43c7 |
long_lat |
ENVELOPE(-94.842,-94.842,74.677,74.677) ENVELOPE(21.117,21.117,67.883,67.883) |
geographic |
Arctic Tromsø Resolute Bay Esrange |
geographic_facet |
Arctic Tromsø Resolute Bay Esrange |
genre |
Andenes Arctic Resolute Bay Tromsø |
genre_facet |
Andenes Arctic Resolute Bay Tromsø |
op_source |
Annales Geophysicae, Vol 22, Pp 3395-3410 (2004) |
op_relation |
https://www.ann-geophys.net/22/3395/2004/angeo-22-3395-2004.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-22-3395-2004 0992-7689 1432-0576 https://doaj.org/article/58515243c7cd46fca6bb905a61db43c7 |
op_doi |
https://doi.org/10.5194/angeo-22-3395-2004 |
container_title |
Annales Geophysicae |
container_volume |
22 |
container_issue |
10 |
container_start_page |
3395 |
op_container_end_page |
3410 |
_version_ |
1766384214747381760 |