Measurement and Analysis of the Microphysical Properties of Arctic Precipitation Showing Frequent Occurrence of Riming
Measurement and Analysis of the Microphysical Properties of Arctic Precipitation Showing Frequent Occurrence of Riming
复制标题
频繁发生雾化的北极降水微物理特性的测量与分析
DOI:
10.1029/2021jd035980
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Garrett, Timothy J.
中科院分区:
文献类型:
--
作者:
Fitch, Kyle E.;Garrett, Timothy J.
Detailed ground‐based observations of snow are scarce in remote regions, such as the Arctic. Here, Multi‐Angle Snowflake Camera measurements of over 55,000 solid hydrometeors—obtained during a two‐year period from August 2016 to August 2018 at Oliktok Point, Alaska—are analyzed and compared to similar measurements from an earlier experiment at Alta, Utah. In general, distributions of hydrometeor fall speed, fall orientation, aspect ratio, flatness, and complexity (i.e., riming degree) were observed to be very similar between the two locations, except that Arctic hydrometeors tended to be smaller. In total, the slope parameter defining a negative exponential of the size distribution was approximately 50% steeper in the Arctic as at Alta. Sixty‐six percent of particles were observed to be rimed or moderately rimed with some suggestion that riming is favored by weak boundary layer stability. On average, the fall speed of rimed particles was not notably different from aggregates. However, graupel density and fall speed increase as cloud temperatures approach the melting point.
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影响因子:
3.1
作者:
T. Garrett
通讯作者:
T. Garrett
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
S. Lang;W. Tao;Xiping Zeng;Yaping Li
通讯作者:
Yaping Li
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
S. Brdar;A. Seifert
通讯作者:
A. Seifert
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Hugh Morrison;P. Zuidema;G. McFarquhar;Aaron R. Bansemer;A. Heymsfield
通讯作者:
A. Heymsfield
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
C. Praz;Y. Roulet;A. Berne
通讯作者:
A. Berne