A 10 year fog and low stratus climatology for Europe based on Meteosat Second Generation data
A 10 year fog and low stratus climatology for Europe based on Meteosat Second Generation data
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DOI：
10.1002/qj.2941
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发表时间：
2017-01-01
影响因子：
8.9
通讯作者：
Bendix, J.
中科院分区：
文献类型：
--
作者：
Egli, S.;Thies, B.;Bendix, J.
由于雾和低层云（FLS）对经济、生态和交通系统的重大影响，人们对FLS发生的高分辨率信息的需求越来越大。在这项研究中，FLS h天（-1）的基线气候基础上记录的数据从2006年至2015年由气象卫星第二代卫星上的旋转增强可见光和红外成像仪系统（SEVIRI）计算欧洲提供所需的信息。这是第一个10年，空间明确的气候FLS的时间分辨率为15分钟的数据为基础的数据集进行验证，对气象航空常规天气报告（METAR），并显示良好的一致性，平均海德克技能得分为0.45。分析了FLS频率的时空变化和年际变化趋势。冬季FLS发生率最高，但在调查期间普遍下降。春季、夏季和秋季的趋势不太明显，平均FLS频率也较低。这些分布的可能原因进行了讨论。
Due to the significant impact of fog and low stratus (FLS) on economy, ecology and traffic systems, there is a growing demand for high-resolution information on FLS occurrence. In this study, a baseline climatology of FLS h day(-1) based on data recorded from 2006-2015 by the Spinning Enhanced Visible and Infrared Imager system (SEVIRI) aboard the Meteosat Second Generation satellites is computed for Europe to provide the requested information. It is the first 10 year, spatially explicit climatology for FLS based on data with a temporal resolution of 15 min. The dataset is validated against Meteorological Aviation Routine Weather Reports (METAR) and shows good accordance with an average Heidke Skill Score of 0.45. Temporal and spatial variations in FLS frequency as well as interannual trends are analyzed. Winter shows the highest FLS occurrence, but a general decrease over the investigated period. Spring, summer and autumn show less pronounced trends and lower average FLS frequencies. Possible reasons for these distributions are discussed.