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Validation of groun...
Validation of ground-based microwave radiometers at 22 GHz for stratospheric and mesospheric water vapor
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- Haefele, A. (författare)
- Universität Bern,University of Bern
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- De Wachter, E. (författare)
- Universität Bern,University of Bern
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- Hocke, K. (författare)
- Universität Bern,University of Bern
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- Kämpfer, N. (författare)
- Universität Bern,University of Bern
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- Nedoluha, G.E. (författare)
- Naval Research Laboratory
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- Gomez, R.M. (författare)
- Naval Research Laboratory
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- Eriksson, Patrick, 1964 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Forkman, Peter, 1959 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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Lambert, A. (författare)
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Schwartz, M.J. (författare)
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(creator_code:org_t)
- 2009
- 2009
- Engelska.
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Ingår i: Journal of Geophysical Research. - 0148-0227 .- 2156-2202. ; 114:23
- Relaterad länk:
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http://dx.doi.org/10...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- We present a detailed intercomparison of five ground-based 22 GHz microwave radiometers for stratospheric and mesospheric water vapor. Four of these instruments are members of the Network for the Detection of Atmospheric Composition Change (NDACC). The global measurements of middle atmospheric water vapor of the Microwave Limb Sounder (MLS) onboard the Aura satellite serve as reference and allow intercomparison of the ground-based systems that are located between 45 degrees S and 57 degrees N. The retrievals of water vapor profiles from the ground-based radiation measurements have been made consistent to a large extent: for the required temperature profiles, we used the global temperature measurements of MLS and we agreed on one common set of spectroscopic parameters. The agreement with the reference measurements is better than +/- 8% in the altitude range from 0.01 to 3 hPa. Strong correlation is found between the ground-based and the reference data in the mesosphere with respect to seasonal cycle and planetary waves. In the stratosphere the measurements are generally more noisy and become sensitive to instrumental instabilities toward lower levels (pressures greater than 3 hPa). We further present a compilation of a NDACC data set based on the retrieval parameters described herein but using a temperature climatology derived from the MLS record. This makes the ground-based measurements independent of additional information and allows extension of the data set for years in a homogeneous manner.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik -- Annan naturresursteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering -- Other Environmental Engineering (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Haefele, A.
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De Wachter, E.
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Hocke, K.
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Kämpfer, N.
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Nedoluha, G.E.
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Gomez, R.M.
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visa fler...
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Eriksson, Patric ...
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Forkman, Peter, ...
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Lambert, A.
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Schwartz, M.J.
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visa färre...
- Om ämnet
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Naturresurstekni ...
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och Annan naturresur ...
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- NATURVETENSKAP
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NATURVETENSKAP
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och Geovetenskap och ...
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och Klimatforskning
- Artiklar i publikationen
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Journal of Geoph ...
- Av lärosätet
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Chalmers tekniska högskola