Thermal structure and gravity waves in the Antarctic middle atmosphere observed by lidar
The IAP iron Doppler lidar has been operated at the Antarctic station Davis (69°S, 78°E) between December 2010 and December 2012. Seasonal variations in the thermal structure above Davis are studied and wave-induced temperature perturbations are analyzed on different time scales. Gravity wave potent...
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Other Authors: | , , |
Format: | Doctoral or Postdoctoral Thesis |
Language: | unknown |
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Universität Rostock Rostock
2014
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Online Access: | https://rosdok.uni-rostock.de/resolve/id/rosdok_disshab_0000001173 https://doi.org/10.18453/rosdok_id00001352 http://nbn-resolving.org/urn:nbn:de:gbv:28-diss2014-0104-4 http://purl.uni-rostock.de/rosdok/id00001352 |
Summary: | The IAP iron Doppler lidar has been operated at the Antarctic station Davis (69°S, 78°E) between December 2010 and December 2012. Seasonal variations in the thermal structure above Davis are studied and wave-induced temperature perturbations are analyzed on different time scales. Gravity wave potential energy densities (GWPED) are computed from stratospheric and mesospheric lidar observations and compared to a simple gravity wave model. It is shown that observed seasonal variations in GWPED are caused by selective filtering of zonally propagating gravity waves. |
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