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Temperature profile determination from microwave oxygen emissions in limb sounding geometry
Universität Bremen, Institute of Environmental Physics.
2002 (English)In: Journal of Geophysical Research, ISSN 0148-0227, E-ISSN 2156-2202, Vol. 107, no 19, 12-1 p.Article in journal (Refereed) Published
Abstract [en]

We present a theoretical investigation of the temperature profile retrieval capabilities of oxygen emission lines in the microwave. The main focus is on two strong lines, both allowing temperature retrieval throughout the mesosphere. One is within the oxygen cluster at 61.15 GHz, the other one is isolated at 118.75 GHz. A thorough comparison of these two lines is presented. Several instrumental parameters such as system noise temperature, antenna beam width, filter width, and coverage of the line are assessed, as well as the possible impact of an error in the spectroscopic parameters. The instrumental setup follows roughly the specifications for the Millimeter Wave Acquisitions for Stratosphere/Troposphere Exchange Research (MASTER) instrument, serving as a basis for a modern passive microwave instrument. The instrumental parameters have also been varied in order to allow comparisons with two instruments that use the 118.75-GHz line for temperature profile determination, the Odin submillimeter radiameter (SMR) and the EOS microwave limb sounder (MLS). Simultaneous retrieval of temperature and pointing bias is performed with the Optimal Estimation Method. We find temperature retrieval errors of

Place, publisher, year, edition, pages
2002. Vol. 107, no 19, 12-1 p.
URN: urn:nbn:se:ltu:diva-237DOI: 10.1029/2001JD001029Local ID: 00ec8540-fd3b-11db-b816-000ea68e967bOAI: diva2:972349

Upprättat; 2002; 20070508 (pafi)

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