Universität zu Köln

Kulie, Mark S., Hiley, Michael J., Bennartz, Ralf, Kneifel, Stefan ORCID: 0000-0003-2220-2968 and Tanelli, Simone (2014). Triple-Frequency Radar Reflectivity Signatures of Snow: Observations and Comparisons with Theoretical Ice Particle Scattering Models. J. Appl. Meteorol. Climatol., 53 (4). S. 1080 - 1099. BOSTON: AMER METEOROLOGICAL SOC. ISSN 1558-8432

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Abstract

An observation-based study is presented that utilizes aircraft data from the 2003 Wakasa Bay Advanced Microwave Scanning Radiometer Precipitation Validation Campaign to assess recent advances in the modeling of microwave scattering properties of nonspherical ice particles in the atmosphere. Previous work has suggested that a triple-frequency (Ku-Ka-W band) reflectivity framework appears capable of identifying key microphysical properties of snow, potentially providing much-needed constraints on significant sources of uncertainty in current snowfall retrieval algorithms used for microwave remote sensing instruments. However, these results were based solely on a modeling framework. In contrast, this study considers the triple-frequency approach from an observational perspective using airborne radar observations from the Wakasa Bay field campaign. After accounting for several challenges with the observational dataset, such as beam mismatching and attenuation, observed dual-wavelength ratio results are presented that confirm both the utility of a multifrequency approach to snowfall retrieval and the validity of the unique signatures predicted by complex aggregate ice particle scattering models. This analysis provides valuable insight into the microphysics of frozen precipitation that can in turn be applied to more readily available single-and dual-frequency systems, providing guidance for future precipitation retrieval algorithms.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Kulie, Mark S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hiley, Michael J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bennartz, Ralf UNSPECIFIED UNSPECIFIED UNSPECIFIED Kneifel, Stefan UNSPECIFIED orcid.org/0000-0003-2220-2968 UNSPECIFIED Tanelli, Simone UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-441058
DOI:	10.1175/JAMC-D-13-066.1
Journal or Publication Title:	J. Appl. Meteorol. Climatol.
Volume:	53
Number:	4
Page Range:	S. 1080 - 1099
Date:	2014
Publisher:	AMER METEOROLOGICAL SOC
Place of Publication:	BOSTON
ISSN:	1558-8432
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SIZE SPECTRA; CLOUD ICE; MICROWAVE-FREQUENCIES; PRECIPITATION RADAR; WAKASA BAY; DISTRIBUTIONS; PARAMETERIZATION; APPROXIMATION; MIDLATITUDE; SNOWFLAKES Multiple languages Meteorology & Atmospheric Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/44105