基于ＶＣ＋＋的风云三号卫星实时遥感数据提取方法

分析了ＨＤＦ５文件和风云三号卫星实时遥感数据结构和特点,采用ＨＤＦ５文件最新的
Ｃ＋＋Ｃｌａｓｓｅｓ开发包、ＶＣ＋＋程序设计语言,开发一种实用性较强的风云三号卫星实时遥感数据
提取方法,并介绍合成风云三号卫星中分辨率真彩色图像的方法。

     

MAPS数值预报产品图形显示系统微机版的开发

介绍ＭＡＰＳ数值预报产品图形显示系统微机版的开发环境,设计思路,技术要点,主要功能和特点,该系统使用ＶｉｓｕａｌＣ＋＋４．０、ｆｏｒｔｒａｎ语言,并以ＮＣＡＲ绘图软件包作为开发工具。     

华南地区大气气溶胶质量谱与水溶性成分谱分布的初步研究

为了提供讨论华南地区酸性降水形成机制的背景资料，１９８８年１月与８－９月，在广州、柳州、韶关、南宁、阳朔、龙门使用Ａｎｄｅｒｓｅｎ气溶胶分级采样器采集了分级气溶胶样品，并对水溶性的Ｆ＾－、Ｃｌ＾－、ＮＯ３＾－、ＳＯ４＾－－、Ｎａ＾＋、ＮＨ４＾＋、Ｋ＾＋、Ｃａ＾＋＋、Ｍｇ＾＋＋进行了分析。结果表明，在工业城市中粗粒态粒子显著多于清洁地区。工业城市气溶胶水溶性成分中的ＳＯ４＾－－、Ｃａ＾＋＋显著高于清     

C语言处理气象资料初探

Ｃ语言处理气象资料初探梁立光（四川省绵阳气象局邮码６２１０００）我通过省局主办的微机应用进修班的学习，对Ｃ语言有了初步的认识；后经自学和实践，已能较为熟练地运用Ｃ语言来处理多种实用性问题。最近，我用Ｃ语言设计了一套预报业务上较为有用的资料处理程序，再...     

信号与系统辅助教学系统

通过信号与系统中部分典型实例，设计了在西文ＤＯＳ下用Ｃ语言实现中文界面提示的应用程序，由于该程序实用性强且生成的界面操作简单，可以脱离Ｃ语言环境，在ＤＯＳ下直接运行，并具有占用内存少和运行速度等优点。     

豫西森林火险天气等级监测预报系统

豫西森林火险天气等级监测预报系统是由Ｃ和Ｃ＋＋ＢＵＩＬＤＥＲ语言编写而成的适合于河南豫西地区的业务系统软件,系统建立在９２１０卫星通信基础上,自动采集ＭＩＣＡＰＳ系统的地面,高空和格点资料数据,经过加工处理、动态筛选所需每类气象要素的若干最佳因子,分别建立多因子权重回归方程,在此基础上按照森林火险天气等级数学模式,计算各相林区的森林火险监测及预报结果。     

灾害性天气预警系统的设计

以暴雨预警为例，介绍了在ＷＩＮＤＯＷＳ下用ＢＯＲＬＡＮＤＣ＋＋设计灾害性天气预警系统的方法。     

用VisualC#实现监视文件和文件夹系统变化

1 Visual C#语言介绍　Microsoft Visual Studio .NET开发工具中，微软提供了Visual Basic、Visual C#、Visual J#、Visual C＋＋编程语言，其中Visual C#语言是.NET平台的核心开发语言。C#看起来与Java有着惊人的相似，包括如单一继承、界面、与Java几乎同样的语法和编译成中间代码再运行的过程。但C#与Java有着明显的不同，它借鉴了Delphi的一个特点，与COM（组件对象模型） 是直接集成的。     

华东区域农业气象情报业务系统

针对华东区域地势差异大的特点,结合当前省级农业气象服务的工作重点,使用ＶＣ＋＋语言开发出一套华东区域六省一市使用的农业气象情报微机解译系统。该系统在Ｗｉｎｄｏｗｓ９５／９８／ＮＴ操作平台上灵活运行,解决了农业气象情报二期工程中软件升级问题,使报文的解译、制图、制表更加快捷方便、美观实用。     

用VC＋＋实现气象资料的FTP自动上传下载

主要介绍了在C＋＋语言中胛P基本程序的实现，包括远程登陆、上传、下载、定时执行、系统托盘等程序代码的实现。另外，介绍了一种字符串匹配算法——KMP算法，可以用于解决程序中模糊匹配检索的问题。FTP客户端软件正式运行的检验效果良好，该软件采用VisualC＋＋6．0开发，在WindowsXP环境中编译执行通过。     

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.     

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.     

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.     

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.