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DOI10.1175/JCLI-D-16-0608.1
Cirrus Cloud Properties as Seen by the CALIPSO Satellite and ECHAM-HAM Global Climate Model
Gasparini, B.1; Meyer, A.2; Neubauer, D.1; Munch, S.1; Lohmann, U.1
2018-03-01
发表期刊JOURNAL OF CLIMATE
ISSN0894-8755
EISSN1520-0442
出版年2018
卷号31期号:5页码:1983-2003
文章类型Article
语种英语
国家Switzerland
英文摘要

Cirrus clouds impact the planetary energy balance and upper-tropospheric water vapor transport and are therefore relevant for climate. In this study cirrus clouds at temperatures colder than -40 degrees C simulated by the ECHAM-Hamburg Aerosol Module (ECHAM-HAM) general circulation model are compared to Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite data. The model captures the general cloud cover pattern and reproduces the observed median ice water content within a factor of 2, while extinction is overestimated by about a factor of 3 as revealed by temperature-dependent frequency histograms. Two distinct types of cirrus clouds are found: in situ-formed cirrus dominating at temperatures colder than -55 degrees C and liquid-origin cirrus dominating at temperatures warmer than -55 degrees C. The latter cirrus form in anvils of deep convective clouds or by glaciation of mixed-phase clouds, leading to high ice crystal number concentrations. They are associated with extinction coefficients and ice water content of up to 1 km(-1) and 0.1 gm(-3), respectively, while the in situ-formed cirrus are associated with smaller extinction coefficients and ice water content. In situ-formed cirrus are nucleated either heterogeneously or homogeneously. The simulated homogeneous ice crystals are similar to liquid-origin cirrus, which are associated with high ice crystal number concentrations. On the contrary, heterogeneously nucleated ice crystals appear in smaller number concentrations. However, ice crystal aggregation and depositional growth smooth the differences between several formation mechanisms, making the attribution to a specific ice nucleation mechanism challenging.


领域气候变化
收录类别SCI-E
WOS记录号WOS:000427438100017
WOS关键词TROPICAL TROPOPAUSE LAYER ; ICE WATER-CONTENT ; GENERAL-CIRCULATION MODEL ; IN-SITU OBSERVATIONS ; MICROPHYSICAL PROPERTIES ; NUCLEATION ; LIDAR ; PARAMETERIZATION ; SIMULATIONS ; SCALE
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/20673
专题气候变化
作者单位1.ETH, Zurich, Switzerland;
2.MeteoSwiss, Fed Off Meteorol & Climatol, Atmospher Data Div, Payerne, Switzerland
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GB/T 7714
Gasparini, B.,Meyer, A.,Neubauer, D.,et al. Cirrus Cloud Properties as Seen by the CALIPSO Satellite and ECHAM-HAM Global Climate Model[J]. JOURNAL OF CLIMATE,2018,31(5):1983-2003.
APA Gasparini, B.,Meyer, A.,Neubauer, D.,Munch, S.,&Lohmann, U..(2018).Cirrus Cloud Properties as Seen by the CALIPSO Satellite and ECHAM-HAM Global Climate Model.JOURNAL OF CLIMATE,31(5),1983-2003.
MLA Gasparini, B.,et al."Cirrus Cloud Properties as Seen by the CALIPSO Satellite and ECHAM-HAM Global Climate Model".JOURNAL OF CLIMATE 31.5(2018):1983-2003.
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