Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-18-0243.1 |
Ice Microphysical Properties near the Tops of Deep Convective Cores Implied by the GPM Dual-Frequency Radar Observations | |
Ni, Xiang1,2; Liu, Chuntao2; Zipser, Edward3 | |
2019-09-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2019 |
卷号 | 76期号:9页码:2899-2917 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Using three years of observations from the Dual-Frequency Precipitation Radar (DPR) aboard the Global Precipitation Measurement (GPM) Core Observatory, properties of the cores of deep convection are examined. First, deep convective systems are selected, defined as GPM precipitation features with maximum 20-dBZ echo-top heights above 10 km. The cores of deep convection are described by the profiles of Ku- and Ka-band radar reflectivity at the location of the highest echo top in each deep convective system. Then the dual-frequency ratio (DFR) profile is derived by subtracting Ka-band from Ku-band radar reflectivity. It is found that values of DFR are larger over land than over ocean in general near the top of the convection, which is consistent with larger ice particles in stronger updrafts in continental convection. The magnitude of DFR at 12 km is positively correlated with the convection intensity indicated by 20- and 30-dBZ echo tops. The microphysical properties including volume-weighted mean diameter, ice water content, and total ice particle number concentration are derived using a simple lookup table approach. Under the same particle size distribution assumption, the cores of deep convection over land have larger ice particle size, higher ice water content, and lower particle concentration than those over ocean at levels above 10 km, but with some distinct regional variations. |
英文关键词 | Cloud microphysics Convective storms Ice particles Radars Radar observations Satellite observations |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000484501400002 |
WOS关键词 | MICROWAVE RADIATIVE PROPERTIES ; FLORIDA CUMULONIMBUS ; SQUALL-LINE ; ORGANIZED CONVECTION ; RETRIEVAL ALGORITHM ; MULTIPLE-SCATTERING ; GLOBAL DISTRIBUTION ; PRECIPITATION ; BAND ; MESOSCALE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/186804 |
专题 | 地球科学 |
作者单位 | 1.Southwest Univ, Sch Geog Sci, Chongqing Jinfo Mt Field Sci Observat & Res Stn K, Chongqing, Peoples R China; 2.Texas A&M Univ Corpus Christi, Dept Phys & Environm Sci, Corpus Christi, TX 78412 USA; 3.Univ Utah, Dept Atmospher Sci, Salt Lake City, UT USA |
推荐引用方式 GB/T 7714 | Ni, Xiang,Liu, Chuntao,Zipser, Edward. Ice Microphysical Properties near the Tops of Deep Convective Cores Implied by the GPM Dual-Frequency Radar Observations[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2019,76(9):2899-2917. |
APA | Ni, Xiang,Liu, Chuntao,&Zipser, Edward.(2019).Ice Microphysical Properties near the Tops of Deep Convective Cores Implied by the GPM Dual-Frequency Radar Observations.JOURNAL OF THE ATMOSPHERIC SCIENCES,76(9),2899-2917. |
MLA | Ni, Xiang,et al."Ice Microphysical Properties near the Tops of Deep Convective Cores Implied by the GPM Dual-Frequency Radar Observations".JOURNAL OF THE ATMOSPHERIC SCIENCES 76.9(2019):2899-2917. |
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