Key laboratory of the rain storm , drought and waterlog of ministry of education , department of atmospheric science , school of physics , peking university , beijing , 100871 北京大学物理学院大气科学系暴雨与旱涝灾害重点实验室，北京， 100871
Users of this lab include master and ph . d . students of iss / ncu and the third and forth years undergraduate students in the department of atmospheric science with space physics major 微电脑室的使用者主要为太空所硕士与博士研究生以及大气系太空组大三、大四学生。
Scope includes atmospheric sciences , climate , oceanography , solid - earth sciences , radioactive waste management , polar research , environmental science and toxicology , natural disasters , and water science -国内地震科学研究介绍，包括地震科学，地质科学，专家介绍，抗震知识，地震数据库等。
Group of atmospheric boundary layer physics and environment , ministry laboratory of drought and flood damages , department of atmospheric sciences , school of physics , peking university , beijing , 100871 北京大学物理学院大气科学系暴雨与旱涝灾害实验室大气边界层物理和大气环境研究组，北京， 100871
Group of atmospheric boundary layer physics and environment , ministry laboratory of storm , drought and flood damages , department of atmospheric sciences , school of physics , peking university , beijing , 100871 北京大学物理学院大气科学系，暴雨与旱涝灾害实验室，大气边界层物理和大气环境研究组，北京， 100871
The guest speakers are all world renowned scientists specializing in the various fields of atmospheric science . they have made remarkable contributions to the development of contemporary meteorology 主讲嘉宾都是世界知名气象学者，成就斐然，在有关科学领域内均有独特见解和贡献，难得他们到港演讲，机会难逢。
Lack of high space - and time - resolution and high quality data of atmospheric observations is still a big obstacle influencing the improvement of numerical weather prediction and further investigation in atmospheric sciences 摘要高时空精度大气观测资料的缺乏，仍是制约提高数值天气预报水平和深入开展大气科学研究的一个主要因素。
Liu xiaodong , an zhisheng , ai li , chen guangshan , and qin ningsheng , 2003 : possible variations of precipitation over the yellow river valley under the global - warming conditions , chinese journal of atmospheric sciences , 27 ( 3 ) , 228 - 236 刘晓东， 2003 ：青藏高原气候变化研究的若干新进展，青藏高原形成环境与发展，郑度主编，石家庄：河北科学出版社， 103 113 。
" i think that someone watching " the day after tomorrow " should realize that when they come out of the movie they should know , that is not going to happen , " said dr . john christy , professor of atmospheric science at the university of alabama in huntsville “我想观看后天的人应该意识到，当他们走出电影情节后，那些都不会发生。 ”阿拉巴马大学亨滋维尔分校的大气学教授约翰克里斯特博士说。
Evidence suggests that the prognostic ability of the new model with high stability , when hidden nodes changing nearby input nodes and training times changing at the certain extent , is significantly better than traditional step wise regression model mainly due to the new model condensing the more forecasting information , properly utilizing the ability of ann self - adaptive learning and nonlinear mapping . but the linear regression technique only selects several predictors by the f value , many predictors information with high relative coefficients is not included . so the new model proposed in this paper is effective and is of a very good prospect in the atmospheric sciences fields 进一步深入分析研究发现，本文提出的这种基于主成分的神经网络预报模型，预报精度明显高于传统的逐步回归方法，其主要原因是这种新的预报模型集中了众多预报因子的预报信息，并有效地利用了人工神经网络方法的自组织和自适应的非线性映射能力；而传统的逐步回归方法是一种线性方法，并且逐步回归方法只是根据f值大小从众多预报因子中选取几个预报因子，其余预报因子的预报信息被舍弃。
