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Titolo:
A global measurement of lower thermosphere atomic oxygen densities
Autore:
Grossmann, KU; Kaufmann, M; Gerstner, E;
Indirizzi:
Berg Univ Gesamthsch Wuppertal, Dept Phys, D-42097 Wuppertal, Germany BergUniv Gesamthsch Wuppertal Wuppertal Germany D-42097 pertal, Germany
Titolo Testata:
GEOPHYSICAL RESEARCH LETTERS
fascicolo: 9, volume: 27, anno: 2000,
pagine: 1387 - 1390
SICI:
0094-8276(20000501)27:9<1387:AGMOLT>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
CRYOGENIC INFRARED SPECTROMETERS; ATMOSPHERE; TEMPERATURE; MIDDLE; TELESCOPES; RETRIEVAL; EMISSION; MODEL; MSIS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Grossmann, KU Berg Univ Gesamthsch Wuppertal, Dept Phys, D-42097 Wuppertal, Germany Berg Univ Gesamthsch Wuppertal Wuppertal Germany D-42097 y
Citazione:
K.U. Grossmann et al., "A global measurement of lower thermosphere atomic oxygen densities", GEOPHYS R L, 27(9), 2000, pp. 1387-1390

Abstract

The first global measurements of the atomic oxygen fine structure emissionline O(P-3(1)) --> O(P-3(2)) at a wavelength of 63 mu m were performed by the CRyogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) experiments in November 1994 and in August 1997. The measured limb radiances were converted to atomic oxygen densities in the altitude regime from 130 km to 175 km using a radiative transfer code and MSIS thermospheric temperatures. The resultant densities are on the average about 40% below thepredictions of the MSIS model for the low solar activity conditions of theCRISTA experiments and at all altitudes covered by the measurement. The densities exhibit considerable horizontal structures which are only in partial agreement with the MSIS predicted relative variations. The latitudinal distribution shows steeper decreases towards the poles than given in MSIS.

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Documento generato il 13/07/20 alle ore 07:44:03