广东省气象信息实时监视系统的开发及应用

介绍为满足广东气象业务发展需要而设计开发的一套新的业务系统,即广东省气象信息实时监视系统。该系统基于B／S架构,采用了Web2．0新技术和ORACLE数据库技术。其主要功能包括实时监视、信息查询和信息统计。通过使用广东省气象信息实时监视系统,观测站发报人员能快速、准确知道信息发送情况,有效地提高了本省实时资料传输时效和业务管理能力。     

基于Brio Intelligence的气象监测资料统计分析系统

利用Brio Intelligence Designer 6开发设计黄南州气象监测资料统计分析系统,集成了查询、分析、报表功能于一体,方便历史气象资料的查询统计,方法简单、方便、快捷。     

新疆省级农牧业气象数据库系统的建立

农牧业气象数据库是建立在农气服务系统上的应用系统，用C语言和FOXBASE＋专门建立一套多功能综合信息管理系统。该系统完成对基本气象资料，土壤湿度温度及其性状资料，农牧业生产有关资料，气象卫星遥感信息资料等的收集、存储、加工处理、检索查询、分析、统计、报表输出、图形管理等多种方式输出。本文将扼要介绍该系统的主要功能及结构特点。     

浙江省农业气象灾害监测系统

浙江省农业气象灾害监测系统是“浙江省农业气象业务系统”的子系统。系统集实时数据接收、数据转译和数据库的形成、旬气象资料查询、实时灾害监测、历史灾害查询、监测报告发送和报表打印等功能于一体,操作简便,自动化程度高。     

山东省GPS/MET实时监控报警系统

为了有效监控山东省气象部门GPS/MET数据的传输情况,及时发现资料传输异常情况并报警,开发了山东省 GPS/MET资料实时监控报警系统。介绍了系统的设计思路、结构模型、流程图等。该系统结合实际工作及应用需求开发,可实现实时监控、文件查询、数据库查询等功能。     

PCVSAT单收站数据收集实时监视系统

主要介绍了PCVSAT单收站数据收集实时监视系统的主要功能和技术特点。该系统直观、灵活地实现了对所有卫星信道发送、接收和缺收文件实时信息的详细查询、打印和保存等功能，同时具备了监视主要通道的状态和数据收集情况及实时报警的功能，满足了实时监视业务的需求。     

基于VBA的两要素自动气象站数据查询系统

两要素气象站原始数据的文本文件记录了各站点气温、降水量数据,文本文件数据复杂繁多。利用VBA面向对象的语法结构进行应用程序开发,该系统从原始数据文件中提取各站点气温、降水量数据,并实现了气温、降水量的日数据、日合计、月平均、年平均以及极值条件查询功能,极大地提高了两要素资料查询和统计工作效率。     

区域自动气象站实时监测查询统计系统设计与实现

近年来,随着"三农"气象服务专项以及山洪灾害防治等项目的实施,两要素自动站、多要素自动站、暴雨站等区域自动气象站迅速增加,为充分发挥区域自动气象站在气象灾害监测中的作用,开发了区域自动气象站实时监测查询统计系统,通过两年的运行表明该系统功能实用、运行稳定、查询速度快,适合在基层业务部门推广应用。     

用户自定义报表管理系统

针对MIS开发中的报表问题，结合RowerBuilder中Data Window的方式和数据库管理模式，利用PowerBuilder设计开发了一个用户自定义报表管理系统，可对多表、多字段进行任意组合查询、统计，并对报表进行了时效、权限、分类管理。本文介绍了软件的设计原理、开发方法及使用方法。     

气象资料分析服务子系统

气象情报业务系统是省气象台的主要业务系统之一。该系统首次实现了实时与历史气象资料的查询自动化。气温等气象资料分析服务子系统是该系统的主要构成之一。本系统提供了气温以及大风日数、日照时数、日照百分率、积温、积雪深度、高低温日数、积雪深度等各项气象资料的查询、检索、排序、极值查找、等值线分析、曲线分析等功能 ,同时还提供了图形分布显示、图形放大、切换、打印和查询结果保存等功能 ,操作界面友好、使用便捷。1　系统的主要功能1 1　平均气温查询功能可以查询任意时段内日平均气温实况 ,日历史平均气温 ,日平均气温距…     

COMPARATIVE ANALYSIS OF VARIOUS DATA OF AIR–SEA TEMPERATURE DIFFERENCE AND ITS VARIATION ACROSS SOUTH CHINA SEA IN THE PAST 35 YEARS

Using the International Comprehensive Ocean-Atmosphere Data Set(ICOADS) and ERA-Interim data, spatial distributions of air-sea temperature difference(ASTD) in the South China Sea(SCS) for the past 35 years are compared,and variations of spatial and temporal distributions of ASTD in this region are addressed using empirical orthogonal function decomposition and wavelet analysis methods. The results indicate that both ICOADS and ERA-Interim data can reflect actual distribution characteristics of ASTD in the SCS, but values of ASTD from the ERA-Interim data are smaller than those of the ICOADS data in the same region. In addition, the ASTD characteristics from the ERA-Interim data are not obvious inshore. A seesaw-type, north-south distribution of ASTD is dominant in the SCS; i.e., a positive peak in the south is associated with a negative peak in the north in November, and a negative peak in the south is accompanied by a positive peak in the north during April and May. Interannual ASTD variations in summer or autumn are decreasing. There is a seesaw-type distribution of ASTD between Beibu Bay and most of the SCS in summer, and the center of large values is in the Nansha Islands area in autumn. The ASTD in the SCS has a strong quasi-3a oscillation period in all seasons, and a quasi-11 a period in winter and spring. The ASTD is positively correlated with the Nio3.4 index in summer and autumn but negatively correlated in spring and winter.     

Could the Recent Taal Volcano Eruption Trigger an El Ni?o and Lead to Eurasian Warming?

正The Taal Volcano in Luzon is one of the most active and dangerous volcanoes of the Philippines. A recent eruption occurred on 12 January 2020(Fig. 1a), and this volcano is still active with the occurrence of volcanic earthquakes. The eruption has become a deep concern worldwide, not only for its damage on local society, but also for potential hazardous consequences on the Earth's climate and environment.     

VARIABILITY OF INTER-ANNUAL RELATIONSHIP BETWEEN INDIAN OCEAN DIPOLE AND HUAXI REGION’S AUTUMN PRECIPITATION

The moving-window correlation analysis was applied to investigate the relationship between autumn Indian Ocean Dipole (IOD) events and the synchronous autumn precipitation in Huaxi region, based on the daily precipitation, sea surface temperature (SST) and atmospheric circulation data from 1960 to 2012. The correlation curves of IOD and the early modulation of Huaxi region’s autumn precipitation indicated a mutational site appeared in the 1970s. During 1960 to 1979, when the IOD was in positive phase in autumn, the circulations changed from a “W” shape to an ”M” shape at 500 hPa in Asia middle-high latitude region. Cold flux got into the Sichuan province with Northwest flow, the positive anomaly of the water vapor flux transported from Western Pacific to Huaxi region strengthened, caused precipitation increase in east Huaxi region. During 1980 to 1999, when the IOD in autumn was positive phase, the atmospheric circulation presented a “W” shape at 500 hPa, the positive anomaly of the water vapor flux transported from Bay of Bengal to Huaxi region strengthened, caused precipitation ascend in west Huaxi region. In summary, the Indian Ocean changed from cold phase to warm phase since the 1970s, caused the instability of the inter-annual relationship between the IOD and the autumn rainfall in Huaxi region.     

IMPACT OF ATMOSPHERIC LOW-FREQUENCY OSCILLATION ON THE IMMIGRATION OF NILAPARVATA LUGENS(STL) IN HUNAN AND JIANGXI PROVINCES

Various features of the atmospheric environment affect the number of migratory insects, besides their initial population. However, little is known about the impact of atmospheric low-frequency oscillation(10 to 90 days) on insect migration. A case study was conducted to ascertain the influence of low-frequency atmospheric oscillation on the immigration of brown planthopper, Nilaparvata lugens(Stl), in Hunan and Jiangxi provinces. The results showed the following:(1) The number of immigrating N. lugens from April to June of 2007 through 2016 mainly exhibited a periodic oscillation of 10 to 20 days.(2) The 10-20 d low-frequency number of immigrating N. lugens was significantly correlated with a low-frequency wind field and a geopotential height field at 850 h Pa.(3) During the peak phase of immigration, southwest or south winds served as a driving force and carried N. lugens populations northward, and when in the back of the trough and the front of the ridge, the downward airflow created a favorable condition for N. lugens to land in the study area. In conclusion, the northward migration of N. lugens was influenced by a low-frequency atmospheric circulation based on the analysis of dynamics. This study was the first research connecting atmospheric low-frequency oscillation to insect migration.     

A COMPARATIVE ANALYSIS OF ATMOSPHERIC AND OCEANIC CONDITIONS BEFORE THE OCCURRENCE OF TWO TYPES OF EL NIO EVENTS

The atmospheric and oceanic conditions before the onset of EP El Ni?o and CP El Ni?o in nearly 30 years are compared and analyzed by using 850 hPa wind, 20℃ isotherm depth, sea surface temperature and the Wheeler and Hendon index. The results are as follows: In the western equatorial Pacific, the occurrence of the anomalously strong westerly winds of the EP El Ni?o is earlier than that of the CP El Ni?o. Its intensity is far stronger than that of the CP El Ni?o. Two months before the El Ni?o, the anomaly westerly winds of the EP El Ni?o have extended to the eastern Pacific region, while the westerly wind anomaly of the CP El Ni?o can only extend to the west of the dateline three months before the El Ni?o and later stay there. Unlike the EP El Ni?o, the CP El Ni?o is always associated with easterly wind anomaly in the eastern equatorial Pacific before its onset. The thermocline depth anomaly of the EP El Ni?o can significantly move eastward and deepen. In addition, we also find that the evolution of thermocline is ahead of the development of the sea surface temperature for the EP El Ni?o. The strong MJO activity of the EP El Ni?o in the western and central Pacific is earlier than that of the CP El Ni?o. Measured by the standard deviation of the zonal wind square, the intensity of MJO activity of the EP El Ni?o is significantly greater than that of the CP El Ni?o before the onset of El Ni?o.     

全球贸易隐含碳变化及其影响分析

基于最新的GTAP8 (Global Trade Analysis Project）数据库,使用投入产出法,分析了2004年到2007年全球贸易变化下南北集团贸易隐含碳变化及对全球碳排放的影响。结果显示,随着发展中国家进出口规模扩张,全球贸易隐含碳流向的重心逐渐向发展中国家转移。2004年到2007年,发达国家高端设备制造业和服务业出口以及发展中国家资源、能源密集型行业及中低端制造业出口的趋势加强,该过程的生产转移导致全球碳排放增长4.15亿t,占研究时段全球贸易隐含碳增量的63%。未来发展中国家的出口隐含碳比重还将进一步提高。贸易变化带来的南北集团隐含碳流动变化对全球应对气候变化行动的影响日益突出,发达国家对此负有重要责任。     

Analysis of Atmospheric Boundary Layer Height Characteristics over the Arctic Ocean Using the Aircraft and GPS Soundings

正ERRATUM to: Atmospheric and Oceanic Science Letters, 4(2011), 124-130 On page 126 of the printed edition (Issue 2, Volume 4), Fig. 2 was a wrong figure because the contact author made mistake giving the wrong one. The corrected edition has been updated on our website. The editorial office is sincerely sorry for any     

Index to Vol.31

正AN Junling;see LI Ying et al.;(5),1221—1232AN Junling;see QU Yu et al.;(4),787-800AN Junling;see WANG Feng et al.;(6),1331-1342Ania POLOMSKA-HARLICK;see Jieshun ZHU et al.;(4),743-754Baek-Min KIM;see Seong-Joong KIM et al.;(4),863-878BAI Tao;see LI Gang et al.;(1),66-84BAO Qing;see YANG Jing et al.;(5),1147—1156BEI Naifang;     

Information for Contributors

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,and research letters.Contributions from all over the world are welcome.