Universität zu Köln

Battaglia, A., Westbrook, C. D., Kneifel, S., Kollias, P., Humpage, N., Loehnert, U., Tyynela, J. and Petty, G. W. (2014). G band atmospheric radars: new frontiers in cloud physics. Atmos. Meas. Tech., 7 (6). S. 1527 - 1547. GOTTINGEN: COPERNICUS GESELLSCHAFT MBH. ISSN 1867-8548

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Abstract

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.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Battaglia, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Westbrook, C. D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kneifel, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kollias, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Humpage, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Loehnert, U. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tyynela, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Petty, G. W. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-451758
DOI:	10.5194/amt-7-1527-2014
Journal or Publication Title:	Atmos. Meas. Tech.
Volume:	7
Number:	6
Page Range:	S. 1527 - 1547
Date:	2014
Publisher:	COPERNICUS GESELLSCHAFT MBH
Place of Publication:	GOTTINGEN
ISSN:	1867-8548
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language DUAL-WAVELENGTH RADAR; LIQUID WATER PATH; DOPPLER RADAR; MICROPHYSICAL PROPERTIES; MICROWAVE-FREQUENCIES; PARTICLE-SIZE; ICE; SCATTERING; PRECIPITATION; RETRIEVALS Multiple languages Meteorology & Atmospheric Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/45175