June 5, 2007
6:00 PM
Antarctica in it's "Austral Winter"
Title :: The Evolution of the Southern Polar Region During Austral Winter/Spring 2006
Authors :: Babakaeva, T. A.; McCormick, M. P.; Grose, W. L.; Kovacs, T.
Affiliation :: AA(Hampton University, 23 Tyler Street, Hampton, VA 23668 United States
Publication :: American Geophysical Union, Fall Meeting 2006 (click here), abstract #A54B-03
Publication Date :: 12/2006
Origin :: AGU
AGU Keywords :: 0305 Aerosols and particles (0345, 4801, 4906), 0340 Middle atmosphere: composition and chemistry, 0341 Middle atmosphere: constituent transport and chemistry (3334), 3311 Clouds and aerosols
Abstract Copyright:(c) 2006: American Geophysical Union
Bibliographic Code:2006AGUFM.A54B..03B
Abstract :: A preliminary investigation of the South polar vortex region in the lower stratosphere during austral winter and spring of 2006 will be presented using CALIPSO, AURA/MLS, and UKMO assimilated data. The dynamical evolution of the polar region will be described using winds, temperatures, and potential vorticity obtained from the UKMO data. Concurrent attenuated backscatter data from the CALIOP instrument on CALIPSO will be used to infer the presence and pervasiveness of polar stratospheric clouds (PSCs) during this period and to demonstrate the correlation of the PSCs with temperature. In addition, the evolution of the ozone (O3) and chlorine monoxide (ClO) distributions in the polar region and the relationship to the PSCs during this period will be discussed using data obtained from the AURA/MLS instrument. The results illustrate the potential benefits of exploiting the synergy among the various data sets and instruments.
The continent is freezing this week.
The coldest spot:
12:00 AM VOST
Vostok, Antarctica
Elevation :: 11220 ft / 3420 m
Temperature :: -72 °F / -58 °C
Humidity :: 24%
Dew Point :: -82 °F / -64 °C
Wind :: 12 mph / 18 km/h / from the SSE
Wind Gust :: -
Pressure :: in / hPa (Rising)
Visibility :: 12.0 miles / 20.0 kilometers
Aviation Flight Rule :: VFR ()
Wind Speed :: 12 mph / 18 km/h /
Wind Dir :: 160° (SSE)
Ceiling :: 100000 ft / 100000 m
The warmest spot:
2:00 PM CLT
Palmer Station, Antarctica
Elevation :: 26 ft / 8 m
Temperature :: 29 °F / -2 °C
Humidity :: 70%
Dew Point :: 23 °F / -5 °C
Wind :: 9 mph / 14 km/h / from the SW
Wind Gust :: -
Pressure :: 29.44 in / 997 hPa (Rising)
Visibility :: 10.0 miles / 16.0 kilometers
Aviation Flight Rule :: VFR ()
Wind Speed :: 9 mph / 14 km/h /
Wind Dir :: 220° (SW)
Ceiling :: 100000 ft / 100000 m
continued...
