Mesoscale meteorological modelling for Hong Kong-application of the MC2 model

ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｉｓｐａｐｅｒｃｏｎｃｅｒｎｓｔｈｅａｄａｐｔａｔｉｏｎａｎｄａｐｐｌｉｃａｔｉｏｎｏｆａｍｅｓｏｓｃａｌｅｍｅｔｅｏｒｏｌｏｇｉｃａｌｍｏｄｅｌｆｏｒｇｅｎｅｒａｔｉｎｇｔｈｅｗｉｎｄｆｉｅｌｄｓａｎｄｏｔｈｅｒｍｅｔｅｏｒｏｌｏｇｉｃａｌｐａｒａｍｅｔｅｒｓｆｏｒｆｕｔｕｒｅｓｔｕｄｉｅｓｏｆａｉｒｐｏｌｌｕｔｉｏｎｉｎｔｈｅｃｏｍｐｌｅｘｔｅｒｒａｉｎｏｆＨｏｎｇＫｏｎｇＳｐｅｃｉａｌＡｄｍｉｎｉｓｔｒａｔｉｖｅＲｅｇｉｏｎ (ＨＫＳＡＲ) .Ｔｈｅｍａｉｎａｒｅａ…     

Emission characteristics of carbon dioxide in the semiarid Stipa grandis steppe in Inner Mongolia, China

Introduction The emission and absorption of greenhouse gases such as carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) etc. by soil is one of the hot topics on global change research, more and more attention has been paid to the flux measurement…     

试论辽阳冬季气象条件对二氧化硫污染的影响

以大气环境质量标准为依据，对辽阳冬季SO2监测结果进行定量分析，绘制SO2污染浓度时空分布图，从中寻找SO2超标区域，结果发现，2001年冬季的交通区与清洁区和2002年冬季的清洁区与居民区出现了SO2严重污染。在此基础上，利用当地气象资料，同步分析SO2浓度变化与气象因子变化关系，从而得出SO2严重污染的气象因素。     

“厄尔尼诺”今年会不会来

据有关资料：西太平洋水域已发现“厄尔尼 诺”征兆，“厄尔尼诺”现象有可能在今年再次再现吗？ 让我们先回过头来看看近年的有关预测。 ２００１ 年５月１５日。中国国家海洋环境预报中心的专家认为，“厄尔尼诺”现象在近期出现的可能性比较小。根据他们的监测，东太平洋冷水区变暖的趋势远没有１９９７至１９９８年那么明显，而且这种趋势目前正在逐步减弱。因此，还不具备“厄尔尼诺”产生的条件。 ２００１年５月２５日。日本海洋科学技术中心发表观测报告，称设置在赤道太平洋上的观测浮标观测到海流变化，预示１２月份有可能发生２…     

青藏高原希夏邦马冰芯中阴阳离子的研究

本文对希夏邦马浅冰芯的资料进行了分析,发同离子含量变化显示强烈的周期性变化,反映了季节变化的特征。离子浓度高低变化将指示气候的冷暖变化。并与降水量变化有着反相关关系,与δ＾１８Ｏ存在着对应关系,但δ＾１８Ｏ对气候变化的反映没有各咱郭反映灵敏。     

乌鲁木齐-奎屯高等级公路沿线污染气象分析

就乌鲁木齐－奎屯高等级公路沿线的污染气象条件进行分析，为研究道路二侧汽车尾气污染提供必要的参数。     

A review on the generation, determination and mitigation of Urban Heat Island

Urban Heat Island （UHI） is considered as one of the major problems in the 21st century posed to human beings as a result of urbanization and industrialization of human civilization. The large amount of heat generated from urban structures, as they consume and re-radiate solar radiations, and from the anthropogenic heat sources are the main causes of UHI. The two heat sources increase the temperatures of an urban area as compared to its surroundings, which is known as Urban Heat Island Intensity （UHII）. The problem is even worse in cities or metropolises with large population and extensive economic activities. The estimated three billion people living in the urban areas in the world are directly exposed to the problem, which will be increased significantly in the near future. Due to the severity of the problem, vast research effort has been dedicated and a wide range of literature is available for the subject. The literature available in this area includes the latest research approaches, concepts, methodologies, latest investigation tools and mitigation measures. This study was carded out to review and summarize this research area through an investigation of the most important feature of UHI. It was concluded that the heat re-radiated by the urban structures plays the most important role which should be investigated in details to study urban heating especially the UHI. It was also concluded that the future research should be focused on design and planning parameters for reducing the effects of urban heat island and ultimately living in a better environment.     

青海省气候异常的部分事实揭示

利用青海省均一性、代表性都较好的５个气象站点自建站至１９９６年历年１月和７月平均气温和降水量资料，分析了省内各主要气候区的温度、降水异常状况。结果表明各地气温异常偏高或偏低的年份较为一致，而水降水异常则呈现出很强的局地性特点。     

环境气象学中的方向数据统计

在环境气象学中,方向数据具有它的特点,统计与普通的数理统计不同。本文将方向数据统计用于环境科学,用风向玫瑰图直观地表达了风向数据,介绍了平均风向的概念和计算方法及风向标准差的合理计算。最后给出厦门市风向研究实例。