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| Titel |
G band atmospheric radars: new frontiers in cloud physics |
| VerfasserIn |
A. Battaglia, C. D. Westbrook, S. Kneifel, P. Kollias, N. Humpage, U. Löhnert, J. Tyynelä, G. W. Petty |
| 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. 6 ; Nr. 7, no. 6 (2014-06-02), S.1527-1546 |
| Datensatznummer |
250115806
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| Publikation (Nr.) |
 copernicus.org/amt-7-1527-2014.pdf |
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| Zusammenfassung |
Clouds and associated precipitation are the largest source of
uncertainty in current weather and future climate
simulations. Observations of the microphysical, dynamical and
radiative processes that act at cloud scales are needed to improve
our understanding of clouds. The rapid expansion of ground-based
super-sites and the availability of continuous profiling and
scanning multi-frequency radar observations at 35 and 94 GHz have
significantly improved our ability to probe the internal structure
of clouds in high temporal-spatial resolution, and to retrieve
quantitative cloud and precipitation properties. However, there are
still gaps in our ability to probe clouds due to large uncertainties
in the retrievals.
The present work discusses the potential of G band (frequency
between 110 and 300 GHz) Doppler radars in combination with
lower frequencies to further improve the retrievals of microphysical
properties. Our results show that, thanks to a larger dynamic range
in dual-wavelength reflectivity, dual-wavelength attenuation and
dual-wavelength Doppler velocity (with respect to a Rayleigh
reference), the inclusion of frequencies in the G band can
significantly improve current profiling capabilities in three key
areas: boundary layer clouds, cirrus and mid-level ice clouds, and
precipitating snow. |
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