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| Titel |
Differential absorption radar techniques: surface pressure |
| VerfasserIn |
L. Millán, M. Lebsock, N. Livesey, S. Tanelli, G. Stephens |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 7, no. 11 ; Nr. 7, no. 11 (2014-11-27), S.3959-3970 |
| Datensatznummer |
250115965
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| Publikation (Nr.) |
 copernicus.org/amt-7-3959-2014.pdf |
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| Zusammenfassung |
| Two radar pulses sent at different frequencies near the 60 GHz
O2 absorption band can be used to determine surface pressure
by measuring the differential absorption on and off the
band. Results of inverting synthetic data assuming an airborne radar
are presented. The analysis includes the effects of temperature,
water vapor, and hydrometeors, as well as particle size distributions and
surface backscatter uncertainties. Results show that an airborne
radar (with sensitivity of −20 and 0.05 dBZ speckle and
relative calibration uncertainties)
can estimate surface pressure with a precision of ~ 1.0 hPa
and accuracy better than 1.0 hPa for clear-sky and cloudy
conditions and better than 3.5 hPa for precipitating
conditions. Generally, accuracy would be around 0.5 and 2 hPa for
non-precipitating and precipitating conditions, respectively. |
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