TY - JOUR
T1 - Observations of Stratospheric Gravity Waves Over Europe on 12 January 2016
T2 - The Role of the Polar Night Jet
AU - Bossert, Katrina
AU - Vadas, Sharon L.
AU - Hoffmann, Lars
AU - Becker, Erich
AU - Harvey, V. Lynn
AU - Bramberger, Martina
N1 - Funding Information:
Research by Dr. Bossert was supported under NSF grant AGS‐1822585, and Dr. Vadas was supported under NSF grant AGS‐822867. V. L. H. acknowledges support under NASA grant 80NSSC19K0834. We acknowledge Dr. Andreas Dörnbrack for thoughtful discussion and feedback.
Publisher Copyright:
©2020. American Geophysical Union. All Rights Reserved.
PY - 2020/11/16
Y1 - 2020/11/16
N2 - Observations during 12 January 2016 revealed a series of events of significant gravity wave (GW) activity over Europe. Analysis of derived temperatures from the Atmospheric InfraRed Sounder (AIRS) provides insight into the sources of these GWs, and include a new observation of stratosphere polar night jet (PNJ) generated GWs. Mountain waves were present during this time as well over the French Alps and the Carpathian Mountains and had maximum temperature perturbations, T′, as large as 27 K over the French Alps. Further investigation of the mountain waves that demonstrated their presence in the stratosphere was determined not only by stratospheric conditions but also by strong winds in the troposphere and at the surface. GWs generated in the stratosphere by the PNJ had maximum T′ of 7 K. These observations demonstrate multiple sources of GWs during a dynamically active period and implicate the role of the PNJ in both the vertical propagation of GWs generated in the troposphere and the generation of GWs from the PNJ itself.
AB - Observations during 12 January 2016 revealed a series of events of significant gravity wave (GW) activity over Europe. Analysis of derived temperatures from the Atmospheric InfraRed Sounder (AIRS) provides insight into the sources of these GWs, and include a new observation of stratosphere polar night jet (PNJ) generated GWs. Mountain waves were present during this time as well over the French Alps and the Carpathian Mountains and had maximum temperature perturbations, T′, as large as 27 K over the French Alps. Further investigation of the mountain waves that demonstrated their presence in the stratosphere was determined not only by stratospheric conditions but also by strong winds in the troposphere and at the surface. GWs generated in the stratosphere by the PNJ had maximum T′ of 7 K. These observations demonstrate multiple sources of GWs during a dynamically active period and implicate the role of the PNJ in both the vertical propagation of GWs generated in the troposphere and the generation of GWs from the PNJ itself.
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U2 - 10.1029/2020JD032893
DO - 10.1029/2020JD032893
M3 - Article
AN - SCOPUS:85095853997
SN - 2169-897X
VL - 125
JO - Journal of Geophysical Research: Atmospheres
JF - Journal of Geophysical Research: Atmospheres
IS - 21
M1 - e2020JD032893
ER -