1Climate Change 2007:Climate Change Impacts,Adaptation and Vulnerability--Selection from the IPCC Fourth Assessment ReportEditorials1-42Distinguishing of Fog or Haze and the Operational Criteria for Observation,Forecasting and Early Warning of Haze in Urban Areas of Guangdong,Hongkong and MacauWU Dui, DENG Xue-jiao, BI Xue-yan, LI Fei, TAN Hao-bo5-10,283Analysis on the Difference of SST Variations during Two Strongest El Nino Events of 20th Century in Pearl River EstuaryTANG Chao-lian, YOU Da-wei, DENG Song, ZHENG Zhao-yong, DENG Wen-jun11-134Impacts of Fujian-landfalling Tropical Cyclones on the Precipitation in GuangdongLIU Yan, LIN Liang-xun14-175Cause Analysis of High Temperature Weather during Summer in Jiangmen18-206500-hPa Height Variation of Shantou during Summer to Autumn in Recent 46 Years and its Relationship with Precipitation of Eastern GuangdongZENG Xia, ZHANG Jiang-yong, XIAO Jun21-237Extreme Climate Events Increasing in Guangzhou due to Significant Climate Warming24-258Wind Distribution over Different Areas of Yangjiang and Some Wind Resistance Issues under the Influence of Typhoon PrapiroonHUANG Xiao-dan, ZHOU Wu26-289Climate Change of Jiangmen in Recent 45 YearsGUAN Yong, HUANG Jiang-hui29-31,3510A Case Study on the Intensity and Location of a Westerly-trough Triggering Heavy Rain during Early Flood Season in Guangdong32-3511Cause Analysis on Drought Events in Shuixi and the CountermeasuresZHANG Qiong-xiong, CHEN Li-sen, DENG Hui36-3712Climate Change of Meixian in Recent 50 YearsLI Ling-zhi, HUANG Zhi-xing38-3913Structural Analysis on the First Torrential Rain Event of 2006 in Shantou using V3θ DiagramTANG Qiang, XU Wei, WEN Jia40-4114Analysis on the Abrupt-North-Turn Track of Strong Typhoon CHANCHUDUAN Zhao-xia, SU Bai-xing42-43 