热带西太平洋表层暖水和次表层冷水的年际变异   总被引：1，自引：0，他引：1  

郭忠信  符淙斌 《热带海洋学报》1989,(3)

对从亦道至19°N之间的137°E断面上持续18个冬季的温度、盐度、动力高度等一系列资料进行异常值的统计、分析,并利用傅里叶级数对所研究的参数作谱估计,初步揭示了西太平洋海域表层暖水和次表层冷水年际变异的重要特点和规律。  相似文献   

A Diagnostic Analysis of Winter Atmospheric Circulation during the 1982-1983 ENSO Event     

滕星林  符淙斌 《大气科学进展》1990,(1)

In this paper, the winter atmospheric circulation, the convection along the equator and their variations of 1982 and 1983 are investigated. It is suggested that there was a well organized three dimensional structure of anomalies of the atmospheric circulations during 1982 winter which may be related to the variations of the convection in the equatorial region.  相似文献   

LARGE SIGNALS OF CLIMATIC VARIATION OVER THE OCEAN IN THE ASIAN MONSOON REGION     

符淙斌  J. Fletcher 《大气科学进展》1988,(4)

The aim of this paper is to identify and delineate large signals of climatic variation in the Asian monsoon region and try to understand the nature of transformation from one climate regime to another.It is found that the summer monsoon over the Indian and western Pacific oceans shows distinct climatic regimes with changes occurring in the years around 1875, 1900, 1940 and 1960. The change of about 1900 is the largest one, which occurs in step with the variation of global oceanic climate pointed out by Fletcher, et al.(1982).The main characteristics of the transformation from one regime to another is an alternation of meridio-nality of monsoon current. The transformation occurs most strongly in the western Pacific convergence zone, where monsoon has strong interaction with the trade wind systems.The variability of monsoon rainfall over India and East China also exhibits some large signals which are synchronous with those of wind field over the ocean: the monsoon rainfall increases (decreases) during the  相似文献   

Comparison of Products from ERA-40, NCEP-2, and CRU with Station Data for Summer Precipitation over China   总被引：4，自引：0，他引：4  

赵天保  符淙斌 《大气科学进展》2006,23(4):593-604

Summer precipitation products from the 45-Year European Centre for Medium-Range Weather Forecast (ECMWF) Reanalysis (ERA-40), and NCEP-Department of Energy (DOE) Atmospheric Model Intercomparison Project (AMIP-II) Reanalysis (NCEP-2), and Climatic Research Unit (CRU) TS 2.1 dataset are compared with the corresponding observations over China in order to understand the quality and utility of the reanalysis datasets for the period 1979–2001. The results reveal that although the magnitude and location of the rainfall belts differ among the reanalysis, CRU, and station data over South and West China, the spatial distributions show good agreement over most areas of China. In comparison with the observations in most areas of China, CRU best matches the observed summer precipitation, while ERA-40 reports less precipitation and NCEP-2 reports more precipitation than the observations. With regard to the amplitude of the interannual variations, CRU is better than either of the reanalyses in representing the corresponding observations. The amplitude in NCEP-2 is stronger but that of ERA-40 is weaker than the observations in most study domains. NCEP-2 has a more obvious interannual variability than ERA-40 or CRU in most areas of East China. Through an Empirical orthogonal function (EOF) analysis, the main features of the rainfall belts produced by CRU agree better with the observations than with those produced by the reanalyses in the Yangtze-Huaihe River valley. In East of China, particularly in the Yangtze-Huaihe River valley, CRU can reveal the quasi-biennial oscillation of summer precipitation represented by the observations, but the signal of ERA-40 is comparatively weak and not very obvious, whereas that of NCEP-2 is also weak before 1990 but very strong after 1990. The results also suggest that the magnitude of the precipitation difference between ERA-40 and the observations is smaller than that between NCEP-2 and the observations, but the variations represented by NCEP-2 are more reasonable than those given by ERA-40 in most areas of East China to some extent.  相似文献   

Inter-Comparison of lO-year Precipitation Simulated by Several RCMs for Asia     

冯锦明  符淙斌 《大气科学进展》2006,23(4):531-542

In phase Ⅱ of the Regional Climate Model Inter-comparison Project （RMIP） for Asia, the regional climate has been simulated for July 1988 through December 1998 by five regional climate models and one global variable resolution model. Comparison of the 10-year simulated precipitation with the observations was carried out. The results show that most models have the capacity to reproduce the basic spatial pattern of precipitation for Asia, and the main rainbelt can be reproduced by most models, but there are distinctions in the location and the intensity. Most models overestimate the precipitation over most continental regions. Interannual variability of the precipitation can also be basically simulated, while differences exist between various models and the observations. The biases in the stream field are important reasons behind the simulation errors of the Regional Climate Models （RCMs）. The cumulus scheme and land surface process have large influences on the precipitation simulation. Generally, the Grell cumulus scheme produces more precipitation than the Kuo scheme.  相似文献   

不同区域气候模式对中国地区温度和降水的长期模拟比较   总被引：19，自引：9，他引：19  

冯锦明  符淙斌 《大气科学》2007,31(5):805-814

利用亚洲区域模式比较计划RMIP第二阶段五个区域模式和一个变网格全球模式，对中国地区1988年12月～1998年11月十年模拟的平均温度和降水结果，分析比较了不同区域气候模式对中国地区温度和降水的模拟能力。研究结果表明:几乎所有模式都能模拟出中国地区多年平均温度和降水的基本空间分布形态，但模式模拟的温度普遍偏低，在大部分区域，大多数模式模拟的降水偏多，而且不同模式之间存在较大差别。模式能较好地反映出中国地区温度的年际变化，对夏季降水的年际变化模拟较差，对冬季模拟较好。  相似文献   

全球变化科学进展与未来趋势   总被引：63，自引：8，他引：63  

叶笃正  符淙斌  董文杰 《地球科学进展》2002,17(4):467-469

概括介绍了国际全球变化研究进展及其最新发展方向，提出了21世纪初我国全球变化科学的发展战略，对推动我国全球变化研究具有一定的指导意义。  相似文献   

北半球副高带的长期变化(一)   总被引：2，自引：0，他引：2       下载免费PDF全文

符淙斌  王金根  吴达铭 《气象》1980,6(3):3-5

一、前言 近两年我们就北半球副热带高压带(以下称副高带)长期变化的基本规律进行了分析。在这里介绍的是这一工作的初步结果。 绕球的北半球副高带是大气环流中的一个重要成员,它对于副热带及邻近地区的天气气候有十分明显的作用。在副高带盘据的大部分地区,是降水少、天气干热的干旱和半干旱区,世界上几个有名的大沙漠,如撒哈拉沙漠,中亚西亚沙漠等正是处于副热带区。由于海陆分布、地形等原因,北半球副高带常常分裂成几个单体,在对流层中部主要有太平洋高压、大西洋高压、北非高压等,其中太平洋高压对我国天气气候的影响尤为重要。所以以往对西太平洋副高的研究较多,而对整个副高带的分析却较少。 天气实践和大气环流理论研究表明,作为一个环  相似文献   

区域气候模式侧边界的处理对东亚夏季风降水模拟的影响   总被引：27，自引：3，他引：24  

魏和林  符淙斌  王维强 《大气科学》1998,22(5):779-790

在区域气候模式模拟中,侧边界的作用是引入大尺度强迫场。如何处理好侧边界,即大尺度强迫场和区域气候模式本身之间的关系问题,对于区域气候模式模拟和预报东亚夏季风降水具有重要意义。本文利用美国纽约州立大学Albany分校的区域气候模式（SUNYA-ReCM）,设计了两种不同的侧边界处理方法,来探讨侧边界对东亚夏季风降水模拟的影响。驱动区域模式的大尺度强迫场来自欧洲中期天气预报中心（ECMWF）及热带海洋大气研究计划（TOGA）的分析资料场。试验结果表明:（1）当模式的区域较大时,采用较小的侧边界缓冲区会在缓冲区与模式内部的交界处产生不连续;扩大缓冲区并且考虑不同尺度强迫在垂直方向上的不同作用,可以避免这一缺陷。（2）更重要的是采用后一种方案,即减少了区域气候模式在模拟大尺度环流场方面所起的作用,使得模式更多地依赖侧边界来得到更真实的、对东亚夏季风降水起重大影响的一些气流,如副高、西南季风和南海季风,对东亚夏季风降水无论是在大小上还是在雨带位置的演变上都能进行更好的模拟。  相似文献   

Seasonal and Spatial Variation of Radiative Effects of Anthropogenic Sulfate Aerosol     

钱云  汪宏七  符淙斌  王自发 《大气科学进展》1998,(3)

ＳｅａｓｏｎａｌａｎｄＳｐａｔｉａｌＶａｒｉａｔｉｏｎｏｆＲａｄｉａｔｉｖｅＥｆｅｃｔｓｏｆＡｎｔｈｒｏｐｏｇｅｎｉｃＳｕｌｆａｔｅＡｅｒｏｓｏｌＱｉａｎＹｕｎ（钱云）,ＷａｎｇＨｏｎｇｑｉ（汪宏七）ＦｕＣｏｎｇｂｉｎ（符淙斌）,ＷａｎｇＺｉｆａ（王...  相似文献