气候变化领域集成服务门户(CCPortal): Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy

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DOI	10.5194/acp-19-4105-2019
	Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy
	Nomokonova T.; Ebell K.; Löhnert U.; Maturilli M.; Ritter C.; O'Connor E.
发表日期	2019
ISSN	16807316
起始页码	4105
结束页码	4126
卷号	19 期号:6
英文摘要	French-German Arctic research base AWIPEV (the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research - AWI - and the French Polar Institute Paul Emile Victor - PEV) at Ny-Ålesund, Svalbard, is a unique station for monitoring cloud-related processes in the Arctic. For the first time, data from a set of groundbased instruments at the AWIPEV observatory are analyzed to characterize the vertical structure of clouds. For this study, a 14-month dataset from Cloudnet combining observations from a ceilometer, a 94 GHz cloud radar, and a microwave radiometer is used. A total cloud occurrence of ∼ 81 %, with 44.8% multilayer and 36% single-layer clouds, was found. Among single-layer clouds the occurrence of liquid, ice, and mixed-phase clouds was 6.4 %, 9 %, and 20.6 %, respectively. It was found that more than 90% of single-layer liquid and mixed-phase clouds have liquid water path (LWP) values lower than 100 and 200 gm-2, respectively. Mean values of ice water path (IWP) for ice and mixed-phase clouds were found to be 273 and 164 gm-2, respectively. The different types of single-layer clouds are also related to in-cloud temperature and the relative humidity under which they occur. Statistics based on observations are compared to ICOsahedral Non-hydrostatic (ICON) model output. Distinct differences in liquid-phase occurrence in observations and the model at different environmental temperatures lead to higher occurrence of pure ice clouds. A lower occurrence of mixedphase clouds in the model at temperatures between -20 and -5 °C becomes evident. The analyzed dataset is useful for satellite validation and model evaluation. © Author(s) 2019.
语种	英语
scopus关键词	cloud cover; cloud microphysics; data set; ground-based measurement; model validation; relative humidity; satellite data; statistical analysis; thermodynamics; vertical distribution; Arctic; Ny-Alesund; Spitsbergen; Svalbard; Svalbard and Jan Mayen
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144533
作者单位	Institute for Geophysics and Meteorology, University of Cologne, Cologne, Germany; Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, Germany; Finnish Meteorological Institute, Helsinki, Finland; Meteorology Department, University of Reading, Reading, United Kingdom
推荐引用方式 GB/T 7714	Nomokonova T.,Ebell K.,Löhnert U.,et al. Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy[J],2019,19(6).
APA	Nomokonova T.,Ebell K.,Löhnert U.,Maturilli M.,Ritter C.,&O'Connor E..(2019).Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy.Atmospheric Chemistry and Physics,19(6).
MLA	Nomokonova T.,et al."Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy".Atmospheric Chemistry and Physics 19.6(2019).