Proposal for new PBL resistance laws for neutrally-stratified flow

The history of the development of Rossby-Number Similarity Theory for the neutral Planetary Boundary Layer (PBL) is reviewed. It is shown that the logarithmic profile derived by asymptotic matching is only valid in the matched layer and not in the surface layer proper. Derivation of the traditional PBL Resistance Laws from the theory is outlined. A best-fit polynomial through observations of geostrophic drag coefficients suggests that the traditional form of the Resistance Laws is inadequate. A new formulation is derived from a generalization of the theory that allows the logarithmic form of the wind profile in the matched layer to differ from that in the surface layer. This new formulation is evaluated against observations made during the 1967 Wangara Experiment. Finally, it is demonstrated how wind speed and wind shear profiles that are consistent with the new Resistance Laws may be obtained.     

天气与气候再分析的进展与前景

随着业务系统发展,用于数值预报的全球大气观测资料实时分析缺乏时间上的连续性,对观测资料的再分析——有更完整的资料,更高的质量控制,稳定、先进的同化模式和分析系统——极大地提高了记录的均一性,使其可用于监测气候变化。这一工作现在被称为“再分析（reanalysis）”。     

飞机人工增雨空地传输网络系统

利用陕西省人工影响天气中心和西安精博科技有限公司共同研制的飞机增雨空地传输系统,于2002～2003年在增雨飞机上进行了25架次的试验。该系统的结构特点是：采用无线和有线相结合的传输模式,克服了短波通信中信号不稳定的现象,达到了语音和数据传输基本正常。经对2003年9月19日增雨飞机上接收的温度、湿度、飞行高度、飞机轨迹图与地面实时接收的上述数据对比分析,发现在同一时间所传输的数据与飞机上的数据基本吻合,地面指挥人员能及时了解到增雨飞机的各种情况。该飞机增雨空地传输系统能实现地面指挥人员与空中作业人员的实时通话和数据传输,实际运行情况良好。     

抓管理促发展防灾减灾作贡献

随着社会经济的发展,遵义市人工影响天气工作规模不断扩大,在实际工作中,强化管理保安全,服务到位促发展,取得了较好的社会经济效益,受到社会各界的广泛关注和认可,得到各级政府的重视和支持,本文介绍了遵义市在开展人工影响天气工作中的一些具体做法.     

电厂空冷系统环境气象场要素分析中的几个关键技术

以山西省左权、王曲电厂等为期一年的铁塔气象观测资料和各邻近地面气象站同期观测资料为例,说明如何选取典型年以及相关性较好的对比气象站,通过对电厂空冷梯度的主要气象要素分析,结合选取的对比气象站长时间序列的逐时气象资料,采用相关统计分析并进行回归检验,重建厂址区域风、温场资料,并针对风资料转换中存在的问题进行了探讨.结果表明:在两地风资料相关较差时.利用条件概率结合线性回归以及风矢量相关等方法补充订正厂址区域风资料效果较好.其结果对风、温场历史资料的重建有一定的指导意义.     

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AIMS AND SCOPE Atmospheric and Oceanic Science Letters(AOSL) publishes short research letters on all disciplines of the atmosphere sciences and physical oceanography. Contributions     

Information for Authors

正AIMS AND SCOPE Atmospheric and Oceanic Science Letters(AOSL)publishes original letters on all disciplines of the atmosphere sciences and physical oceanography.It features fast publication and is full Open Access.Contributions from all over the world are welcome.OPEN ACCESS Each article published in AOSL is published Open Access,which means that,upon payment of an article publishing     

Information for Authors

<正>AIMS AND SCOPE Atmospheric and Oceanic Science Letters(AOSL)publishes original letters on all disciplines of the atmosphere sciences and physical oceanography.It features fast publication and is full Open Access.Contributions from all over the world are welcome.OPEN ACCESS Each article published in AOSL is published Open Access.which means that,upon payment of an article publishing     

Information for Authors

正AIMS AND SCOPE Atmospheric and Oceanic Science Letters(AOSL)publishes original letters on all disciplines of the atmosphere sciences and physical oceanography.It features fast publication and is full Open Access.Contributions from all over the world are welcome.OPEN ACCESS Each article published in AOSL is published Open Access,which means that,upon payment of an article publishing     

Information for Authors

正AIMS AND SCOPE Atmospheric and Oceanic Science Letters(AOSL)publishes original letters on all disciplines of the atmosphere sciences and physical oceanography.It features fast publication and is full Open Access.Contributions from all over the world are welcome.OPEN ACCESS Each article published in AOSL is published Open Access,which means that,upon payment of an article publishing     

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<正>Journal of Meteorological Research is an international academic journal in atmospheric sciences edited and published by Acta Meteorologica Sinica Press,sponsored by the Chinese Meteorological Society.It has been acting as a bridge of academic exchange between Chinese and foreign meteorologists and aiming at introduction of the current advancements in atmospheric sciences in China.The journal columns include Articles,Note and Correspondence,     

Information for Contributors

<正>Acta Meteorologica Sinica(English Edition) is an international academic journal in atmospheric sciences edited and published by Acta Meteorologica Sinica Press,sponsored by the Chinese Meteorological Society.It has been acting as a bridge of academic exchange between Chinese and foreign meteorologists and aiming at the introduction of the current advancements in atmospheric sciences in China.The journal columns include Articles,Note and Correspondence, and research letters.Contributions from all over the world arc welcome.     

Information for Contributors

Acta Meteorologica Sinica （English Edition） is an international academic journal in atmospheric sciences edited and published by Acta Meteorologica Sinica Press, sponsored by the Chinese Meteorological Society. It has been acting as a bridge of academic exchange between Chinese and foreign meteorologists and aiming at the introduction of the current advancemerits in atmospheric sciences in China. The journal columns include Articles, Note and Correspondence, and research letters. Contributions from all over the world are welcome.     

Information for Contributors

Acta Meteorologica Sinica (English Edition) is an international academic journal in atmospheric sciences edited and published by Acta Meteorologica Sinica Press,sponsored by the Chinese Meteorological Society. It has been acting as a bridge of academic exchange between Chinese and foreign meteorologists     

Information for Contributors

Acta Meteorologica Sinica(English Edition) is an international academic journal in atmospheric sciences edited and published by Acta Meteorologica Sinica Press,sponsored by the Chinese Meteorological Society.It has been acting as a bridge of academic exchange between Chinese and foreign meteorologists and aiming at the introduction of the current advancements in atmospheric sciences in China.The journal columns include Articles,Note and Correspondence, and research letters.Contributions from all over the...