DOI: 10.1002/2017JD027717
Scopus记录号: 2-s2.0-85042610843
论文题名: Toward Exploring the Synergy Between Cloud Radar Polarimetry and Doppler Spectral Analysis in Deep Cold Precipitating Systems in the Arctic
作者: Oue M. ; Kollias P. ; Ryzhkov A. ; Luke E.P.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 5 起始页码: 2797
结束页码: 2815
语种: 英语
英文关键词: ice particles
; mixed-phase clouds
; Polarimetric radar
; radar Doppler spectra
Scopus关键词: air temperature
; cloud microphysics
; complexity
; Doppler radar
; particle size
; polarization
; quantitative analysis
; reflectivity
; spectral analysis
; Arctic
英文摘要: The study of Arctic ice and mixed-phase clouds, which are characterized by a variety of ice particle types in the same cloudy volume, is challenging research. This study illustrates a new approach to qualitative and quantitative analysis of the complexity of ice and mixed-phase microphysical processes in Arctic deep precipitating systems using the combination of Ka-band zenith-pointing radar Doppler spectra and quasi-vertical profiles of polarimetric radar variables measured by a Ka/W-band scanning radar. The results illustrate the frequent occurrence of multimodal Doppler spectra in the dendritic/planar growth layer, where locally generated, slower-falling particle populations are well separated from faster-falling populations in terms of Doppler velocity. The slower-falling particle populations contribute to an increase of differential reflectivity (ZDR), while an enhanced specific differential phase (KDP) in this dendritic growth temperature range is caused by both the slower and faster-falling particle populations. Another area with frequent occurrence of multimodal Doppler spectra is in mixed-phase layers, where both populations produce ZDR and KDP values close to 0, suggesting the occurrence of a riming process. Joint analysis of the Doppler spectra and the polarimetric radar variables provides important insight into the microphysics of snow formation and allows the separation of the contributions of ice of different habits to the values of reflectivity and ZDR. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114293
Appears in Collections: 气候减缓与适应
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作者单位: School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, United States; Environmental and Climate Sciences Department, Brookhaven National Laboratory, Upton, NY, United States; Cooperative Institute for Mesoscale Meteorological Studies/National Severe Storms Laboratory, Moss Landing, CA, United States
Recommended Citation:
Oue M.,Kollias P.,Ryzhkov A.,et al. Toward Exploring the Synergy Between Cloud Radar Polarimetry and Doppler Spectral Analysis in Deep Cold Precipitating Systems in the Arctic[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(5)