A study of the relationship between stratospheric gravity waves and polar mesospheric clouds at Davis Antarctica

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

3

Atmospheric Processes: Middle Atmosphere Dynamics (0341, 0342), Atmospheric Processes: Acoustic-Gravity Waves, Atmospheric Processes: Tides And Planetary Waves

Scientific paper

We used a Rayleigh lidar located at Davis station, East Antarctica, to compare Polar Mesospheric Cloud (PMC) and stratospheric gravity wave (GW) strengths in the austral summer 2005-2006. Earlier similar studies from Greenland noted that intervals of large stratospheric GW activity appeared to coincide with reduced PMC strengths. We measure the stratospheric GW strength in the 30-45 km altitude range, for waves of vertical wavelength between ~2 and ~10 km, and of periods greater than 1 h. We find little consistency with the Greenland studies, as the occurrence of PMC over Davis appear to have little relationship to observed stratospheric gravity wave activity. Hemispheric differences, in both PMC strength and occurrence and in gravity wave strength, may have a role in explaining our results. Our data suggest that a significant controller of occurrence of PMC over Davis is related to diurnal tidal movement. We also investigate the potential influence of sampling biases in our data set.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A study of the relationship between stratospheric gravity waves and polar mesospheric clouds at Davis Antarctica 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 A study of the relationship between stratospheric gravity waves and polar mesospheric clouds at Davis Antarctica, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A study of the relationship between stratospheric gravity waves and polar mesospheric clouds at Davis Antarctica will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1325342

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.