Coupling between the Arctic middle and upper atmosphere during the IPY 2007-2008 winter [presentation]
Rayleigh lidars at Chatanika, Alaska (65N, 147W) and Kangerlussuaq, Greenland (67N, 51W) have measured the middle atmospheric density and temperature structure during the 2007-2008 winter. These lidars are part of the Arctic Observing Network during the fourth International Polar Year (IPY). The lid...
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ftncar:oai:drupal-site.org:conference_866 2023-10-01T03:53:25+02:00 Coupling between the Arctic middle and upper atmosphere during the IPY 2007-2008 winter [presentation] AGU Fall Meeting 2008 Thurairajah, B. (author) Collins, R. (author) Harvey, V. (author) Lieberman, R. (author) Atkinson, D. (author) Livingston, J. (author) Mizutani, K. (author) Liu, Han-Li (author) American Geophysical Union (sponsor) 2008-12-15-2008-12-19 http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-249 en eng http://www.agu.org/cgi-bin/sessions5?meeting=fm08&part=SA32A&maxhits=400 http://www.agu.org/cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=fm08&database=%2Fdata%2Fepubs%2Fwais%2Findexes%2Ffm08%2Ffm08&maxhits=200&=%22SA32A-06%22 http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-249 ark:/85065/d75h7fbc Copyright Author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. Text conference material 2008 ftncar 2023-09-04T18:33:58Z Rayleigh lidars at Chatanika, Alaska (65N, 147W) and Kangerlussuaq, Greenland (67N, 51W) have measured the middle atmospheric density and temperature structure during the 2007-2008 winter. These lidars are part of the Arctic Observing Network during the fourth International Polar Year (IPY). The lidar observations have yielded measurements of mean profiles and the gravity wave activity in the upper stratosphere and mesosphere. TIMED-SABER satellite geopotential data are used to quantify the planetary wave activity in the middle atmosphere. UKMO and GEOS reanalysis data are used to describe the structure and evolution of the Arctic stratospheric-mesospheric vortex and Aleutian anticyclone. The lidars sampled both inside and outside the vortex and anticyclone characterizing the gravity wave activity under different synoptic regimes. A stratospheric warming occurred in late February 2008. A TIME-GCM simulation (with a model lower boundary specified by ECMWF) has been conducted for the November 2007-March 2008 period. This study allows us to characterize the planetary and gravity wave activity in the Arctic middle atmosphere during the IPY. These measurements and analyses will be compared with the TIME-GCM simulations to study the wave coupling between the middle and upper atmosphere and the expected response of the high latitude ionosphere to a stratospheric warming during the IPY. Conference Object Arctic Greenland International Polar Year IPY Kangerlussuaq Alaska OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Greenland Kangerlussuaq ENVELOPE(-55.633,-55.633,72.633,72.633) |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
Rayleigh lidars at Chatanika, Alaska (65N, 147W) and Kangerlussuaq, Greenland (67N, 51W) have measured the middle atmospheric density and temperature structure during the 2007-2008 winter. These lidars are part of the Arctic Observing Network during the fourth International Polar Year (IPY). The lidar observations have yielded measurements of mean profiles and the gravity wave activity in the upper stratosphere and mesosphere. TIMED-SABER satellite geopotential data are used to quantify the planetary wave activity in the middle atmosphere. UKMO and GEOS reanalysis data are used to describe the structure and evolution of the Arctic stratospheric-mesospheric vortex and Aleutian anticyclone. The lidars sampled both inside and outside the vortex and anticyclone characterizing the gravity wave activity under different synoptic regimes. A stratospheric warming occurred in late February 2008. A TIME-GCM simulation (with a model lower boundary specified by ECMWF) has been conducted for the November 2007-March 2008 period. This study allows us to characterize the planetary and gravity wave activity in the Arctic middle atmosphere during the IPY. These measurements and analyses will be compared with the TIME-GCM simulations to study the wave coupling between the middle and upper atmosphere and the expected response of the high latitude ionosphere to a stratospheric warming during the IPY. |
author2 |
AGU Fall Meeting 2008 Thurairajah, B. (author) Collins, R. (author) Harvey, V. (author) Lieberman, R. (author) Atkinson, D. (author) Livingston, J. (author) Mizutani, K. (author) Liu, Han-Li (author) American Geophysical Union (sponsor) |
format |
Conference Object |
title |
Coupling between the Arctic middle and upper atmosphere during the IPY 2007-2008 winter [presentation] |
spellingShingle |
Coupling between the Arctic middle and upper atmosphere during the IPY 2007-2008 winter [presentation] |
title_short |
Coupling between the Arctic middle and upper atmosphere during the IPY 2007-2008 winter [presentation] |
title_full |
Coupling between the Arctic middle and upper atmosphere during the IPY 2007-2008 winter [presentation] |
title_fullStr |
Coupling between the Arctic middle and upper atmosphere during the IPY 2007-2008 winter [presentation] |
title_full_unstemmed |
Coupling between the Arctic middle and upper atmosphere during the IPY 2007-2008 winter [presentation] |
title_sort |
coupling between the arctic middle and upper atmosphere during the ipy 2007-2008 winter [presentation] |
publishDate |
2008 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-249 |
long_lat |
ENVELOPE(-55.633,-55.633,72.633,72.633) |
geographic |
Arctic Greenland Kangerlussuaq |
geographic_facet |
Arctic Greenland Kangerlussuaq |
genre |
Arctic Greenland International Polar Year IPY Kangerlussuaq Alaska |
genre_facet |
Arctic Greenland International Polar Year IPY Kangerlussuaq Alaska |
op_relation |
http://www.agu.org/cgi-bin/sessions5?meeting=fm08&part=SA32A&maxhits=400 http://www.agu.org/cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=fm08&database=%2Fdata%2Fepubs%2Fwais%2Findexes%2Ffm08%2Ffm08&maxhits=200&=%22SA32A-06%22 http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-249 ark:/85065/d75h7fbc |
op_rights |
Copyright Author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
_version_ |
1778519996864921600 |