Surface flux and atmospheric boundary layer observations from the LAPS project over the middle stream of the Huaihe River basin in China
Surface flux and atmospheric boundary layer observations from the LAPS project over the middle stream of the Huaihe River basin in China
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DOI：
10.1002/hyp.6706
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发表时间：
2007-07
影响因子：
3.2
通讯作者：
Hiroki Tanaka;T. Hiyama;Koh Yamamoto;H. Fujinami;T. Shinoda;A. Higuchi;S. Endo;Shoichiro Ikeda-Shoichiro-Ike
中科院分区：
文献类型：
--
作者：
Hiroki Tanaka;T. Hiyama;Koh Yamamoto;H. Fujinami;T. Shinoda;A. Higuchi;S. Endo;Shoichiro Ikeda-Shoichiro-Ike
作为低层大气与降水研究（LAPS）的一部分，收集了对地表层和大气边界层（ABL）的观测数据，该研究调查了地表状况与大气边界层过程之间的关系。LAPS是日本科学技术振兴机构（JST）主持的创发科学技术核心研究（CREST）项目的一部分。观测于2003年8月在中国中纬度地区（北纬32.55°，东经116.78°）的一个平坦地表区域开始。在中国梅雨季节之前、期间和之后的观测为从相对干燥到湿润的地表状况提供了数据。对地表和大气边界层观测的初步分析表明了地表通量与大气边界层结构之间的关系。感热通量使大气边界层深度增加。大气边界层深度的波动与大气边界层内类似羽流的风结构相对应。在干燥时期，大气边界层深度的逐日变化主要受地表浮力通量控制。在湿润时期，它还受到大气边界层顶部垂直运动的影响。版权所有©2007约翰威立父子有限公司
Observations of the surface layer and the atmospheric boundary layer (ABL) were collected as part of the Lower Atmosphere and Precipitation Study (LAPS), which investigated the relationship between the surface conditions and the ABL processes. The LAPS was part of the Core Research for Evolutional Science and Technology (CREST) program, under the auspices of the Japan Science and Technology Agency (JST). Observations began in August 2003 over a flat surface region in mid‐latitude China at 32·55°N, 116·78°E. Observations before, during, and after the Meiyu season in China provided data for surface conditions varying from relatively dry to moist. Preliminary analysis of the surface and the ABL observations shows relationships between the surface fluxes and the ABL structure. ABL depth was enhanced by sensible heat flux. Fluctuations in the ABL depth corresponded to plume‐like wind structures within the ABL. Day‐to‐day variability in ABL depth was controlled mainly by buoyancy flux over the surface during dry periods. It was also affected by vertical motion at the top of the ABL, especially during wet periods. Copyright © 2007 John Wiley & Sons, Ltd.