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DOI | 10.1029/2019JD030721 |
Validation of Microphysical Snow Models Using In Situ, Multifrequency, and Dual-Polarization Radar Measurements in Finland | |
Tyynela, J.1; von Lerber, Annakaisa1,2 | |
2019-12-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:23页码:13273-13290 |
文章类型 | Article |
语种 | 英语 |
国家 | Finland; Germany |
英文摘要 | As complex forward models for snow have become common in radar-based retrievals, there is a demand to validate these models in different environments. In this study, we perform a qualitative, general validation for nine different snow models that have been published and are available to users. The chosen models span a variety of different snow types, such as aggregates, rimed aggregates, melted aggregates, graupel, and single crystals, mainly because these particles are commonly observed in the Finnish climate. Fitted power law formulas for mass, fall velocity, aspect ratio, and area ratio are compared between the models and 5-year winter measurements in the Hyytiala forestry field station in Finland. We also compare the backscattering properties of the models to triple-frequency dual-polarization radar measurements during the Biogenic Aerosols Effects on Clouds and Climate campaign in 2014. We find that the denser models, regardless of the exact shapes, fit the in situ measurements best due to the prevalence of rime in the falling snow. However, when comparing also to the triple-frequency radar measurements at X, Ka, and W bands, and the linear depolarization ratio at Ka band, the physical snow models fit overall better than the empirical ones. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000505626200051 |
WOS关键词 | ICE-CLOUD PROPERTIES ; SCATTERING PROPERTIES ; WAVELENGTH RADAR ; MICROWAVE-SCATTERING ; SNOWFLAKES ; SIGNATURES ; PARTICLES ; AGGREGATE ; RETRIEVAL ; BACKSCATTERING |
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/225933 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Finnish Meteorol Inst, Helsinki, Finland; 2.Univ Cologne, Inst Geophys & Meteorol, Cologne, Germany |
推荐引用方式 GB/T 7714 | Tyynela, J.,von Lerber, Annakaisa. Validation of Microphysical Snow Models Using In Situ, Multifrequency, and Dual-Polarization Radar Measurements in Finland[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(23):13273-13290. |
APA | Tyynela, J.,&von Lerber, Annakaisa.(2019).Validation of Microphysical Snow Models Using In Situ, Multifrequency, and Dual-Polarization Radar Measurements in Finland.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(23),13273-13290. |
MLA | Tyynela, J.,et al."Validation of Microphysical Snow Models Using In Situ, Multifrequency, and Dual-Polarization Radar Measurements in Finland".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.23(2019):13273-13290. |
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