COSPAR International Reference Atmosphere
COSPAR International Reference Atmosphere is one of the first projects of the Committee on Space Research (COSPAR) founded in 1958 by the International Council for Science and has the task of representing the mean data of the upper atmosphere in a model that is always based on the latest experimental results is adjusted.
history
The task group set up by COSPAR under the direction of Hildegard Kallmann-Bijl developed a set of vertical profiles, which was based on the results of the deceleration measurements on the first satellite , as CIRA 1961. It soon became apparent that this method would fail in the thermosphere must because the composition of the air there changes greatly with altitude. Later, in-situ measurements with mass spectrometers made it possible to overcome this difficulty. In addition, there were results from observations of the scattering of strong radio signals on the air molecules there . With the results of both techniques, the MSIS 86 model was created, which was adopted in the CIRA-86 for the thermosphere.
literature
- Karin Labitzke et al: Middle Atmosphere Program, manual MAP 16 . Urbana 1985 (English)
- MJ Rycroft et al .: Upper Atmosphere Models and Research . Adv.Space Research 10 # 6 1988 (English)
Web links
- The atmosphere of the earth on klima-der-erde.de
- http://www.astronomie.de/sonnensystem/erde/atme.htm
- http://ccmc.gsfc.nasa.gov/modelweb/atmos/cospar1.html (basic text English)
- http://badc.nerc.ac.uk/data/cira/ (English)