Simultaneous Measurements of Temperatures, Waves, and PSCs in the Polar Winter-Stratosphere on both Sides of the Scandinavian Mountains

Updated 2003-03-10

Polar stratospheric clouds play a key-role in polar ozone destruction. Cold temperatures in the vortex allow formation of these clouds. Depending on the PSC-type different formation-temperatures have to be reached. Synoptic temperatures do not always fall to these formation-temperatures, but waves in the atmosphere can lead to additional cooling of several 10 K, which allows PSC-formation. Whereas the wave-activity at the ESRANGE is very high due to hilly surrounding area, the orographic wave-activity at ALOMAR is expected to be rather small. Waves with long wavelengths will be present at both stations simultaneously. Coordinated measurements of temperature and aerosols will show both the large-scale wave-part and also the locally induced wave-part. Such measurements should allow identification of the different wavelngth scales and in addition contribute to a better estimate of the importance of wave-induced clouds for PSC-formation.

Time frame

Status
Completed
Project time span
2002 - 2002
Data collection
not specified
Data processing
not specified
Data reporting
not specified

Contact information

Contact person
J Lunde
Address
ALOMAR Observatory And√łya Rocket Range P.O Box 54 8483 Andenes
Phone
+47 76 14 11 00
Fax
+47 76 14 44 01
Email
on.egnartekcor@ramola

Parameters and Media

Not specified

Geography

Regions studied
ALOMAR Observatory
Norway
Other areas
Scandinavian Mountains
Stations or areas where observations are made

ALOMAR ESRANGE

Data availability

Samples/specimens archived in specimen banks?
No

Methods & Procedures

Not specified

Additional Information

Is this a bi- AND multi-lateral project (i.e. a project involving cooperation between different countries)?
No
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