Gravity wave impacts on mesospheric forcing during Stratospheric Sudden Warming studied with a parameterization scheme

Details Gravity wave impacts on mesospheric forcing during Stratospheric Sudden Warming studied with a parameterization scheme Gravity wave impacts on mesospheric forcing during Stratospheric Sudden Warming studied with a parameterization scheme

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsa32a..08y&link_type=abstract

American Geophysical Union, Fall Meeting 2008, abstract #SA32A-08

Physics

3319 General Circulation (1223), 3332 Mesospheric Dynamics, 3333 Model Calibration (1846), 3334 Middle Atmosphere Dynamics (0341, 0342), 3362 Stratosphere/Troposphere Interactions

Scientific paper

Mesospheric cooling during Stratospheric Sudden Warming (SSW) has been observed by instruments and simulated by various models. While TIME-GCM successfully simulates the cooling effect, the simulated cooling layer thickness is larger than observed. Gravity waves are considered as the primary contributor to the mesospheric cooling and the lower thermosphere warming during SSW through changing the meridional circulation. The aforementioned discrepancies could be caused by the unrealistic gravity wave parameterization. To improve the parameterization for TIME-GCM, we use a gravity wave parameterization model (the Lindzen scheme) to investigate how the mesospheric and lower-thermospheric forcing response to different gravity wave parameters. The background temperature and wind profiles are taken from the NCAR TIME-GCM simulation of the 2008 SSW in Northern Hemisphere. By varying gravity wave spectrum shape, horizontal wavelength, and amplitude as the input to the Lindzen scheme, the mesospheric forcing during the 2008 SSW will be quantified and the gravity wave impacts on the meridional circulation will be assessed.

Affiliated with

Also associated with

No associations

Rating

Gravity wave impacts on mesospheric forcing during Stratospheric Sudden Warming studied with a parameterization scheme does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gravity wave impacts on mesospheric forcing during Stratospheric Sudden Warming studied with a parameterization scheme, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravity wave impacts on mesospheric forcing during Stratospheric Sudden Warming studied with a parameterization scheme will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1244477