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利用ftp向远程上载或下载文件是网络业务的重要内容。在一般网络环境下,实现文件传输可以使用商用ftp软件或自由编程实现。商用软件一般需人工操作,不能实现文件定时自动传输,自由编程的程序控制,既可以人工控制,也可以自动控制,从而可以实现文件定时自动传输。编程实现ftp文件 相似文献
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气象仪器的设计,老式的是机械式的,六十年代到七十年代初设计的是电子式的。随着微处理机技术的发展,今天的仪器设计人员必须抛弃传统设计中的许多方法,采用新的设计观点和思路。一些不能胜任设计电子式仪器的人,只要具有基础软件知识和一般的无线电知识,也能利用微处理机设计出功能相当的系统来。这一点,在以前是不可想像的。现在,雷达回波的视频积分、气象资料的自动填图、量程的自动选通等都可以通过应用微机加以实现。气象资料的自动收集、加工、记录,自动传输,自动填图的工作,是实现气象装备自动化的重要方面。诚然,采用专用小型计算机来完成上述任务,在软件设计上并不是一件困难的事情。但成本较高,难以大量推广。近年来,国内外许多人应用单板机 相似文献
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当用自动站微机因病毒、硬盘损坏等问题不能恢复时,备份微机因启用需要从采集器下载资料而不能使自动站及时恢复运行,为此,找到利用双网卡连接现用、备份两微机和批处理文件及Windows任务计划功能轻松解决该问题的方法。 相似文献
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Gary A. Briggs 《Boundary-Layer Meteorology》1982,23(4):489-502
Past work on analyzing ground-source diffusion data in terms of surface-layer similarity theory is reviewed; these analyses assume that
z
/L orh/L is a function of u
*
x/L (where h = Q/ dy). It is argued that an alternative scaling, h
*/L versus x/L, is nearly as universal in that it is very weakly influenced by surface roughness, except for a modest influence in the free convective case (h
* = Q/u
* dy); the advantage of this scaling is that it eliminates the need to reassess as vertical diffusion progresses. The Prairie Grass data set is adjusted for the difference in source and sampling heights, and is plotted with this scaling. Simple analytic equations are suggested that fit the resultant data plots for stable and unstable conditions, and suggestions are made towards practical application of these results.On assignment from the National Oceanic and Atmospheric Administration, U.S. Department of Commerce. 相似文献
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Microsoft Excel电子表格帮助完成《地面测报质量报表》的编制工作,既准确无误,又提高工作效率。 相似文献
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《农业气象资料审核与报表制作系统》的研制成功和推广为基层台站的农气工作从手工制做报表到机制报表迈出了可喜的一步,经过系统细致的审核功能,减轻了农气测报人员的工作量,对提高农气报表质量起到了一定的作用,如在实际工作中能正确、合理、优化使用该系统,将能使工作效率和 相似文献
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Air temperature variations in Europe and northern Asia are strongly affected by atmospheric circulation. A large-scale study of temperature signals is presented, using a newly available global gridded daily temperature dataset. Major types of European Grosswetterlagen (large-scale weather patterns) and the Russian Vangengeim–Girs classification are compared in their spatial applicability to air temperatures within the past 110 years (1901–2010). The consistency of spatial patterns in the three most recent decades (1981–2010) is investigated, and temperature changes are interpreted against the backdrop of changes in character and frequency of circulation patterns. Both classifications largely explain the observed temperature variability. Spatial patterns are large-scale and strong in both regions, especially in winter. Both spatial extent and signal magnitude show a distinct seasonality with maximum values in winter and minimum ones in summer. Spatial patterns show little changes in Europe; yet the ability to explain temperature variability in northern Asia decreased within 1981–2010. European winter warming corresponds to increased maritime and to decreased continental air mass inflow, superimposed on the general warming trend. Northern Asian winter warming is partly explainable by circulation changes in January and February, but to a lesser extend in December. These results may be used to advance input variables of global climate models and to improve their performance in the European–Northern Asian area. 相似文献
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随着气象现代化建设的深入与发展,2003年黑龙江省大部分台站都安装了DYYZⅡ型地面气象综合有线遥测仪(Ⅱ型自动气象站),经过半年多的正式使用,在气表审核工作中遇到了一些问题,针对这些问题提出解决方法。 相似文献
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该文以连续10 a审核无错情经验为基础,从原始记录的审查、自记记录的检查、备注栏和记录要检的填写、微机审核报表等几方面,分析了基层台站如何做好气象报表的预审工作。 相似文献
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各级气象部门收集的乡镇(炮点)雨量,一般需要对其进行归纳整理,最后以报表的形式进行存档。采用手工统计和分析是很难办到的,为了提高乡镇(炮点)雨量报表制作、整理的工作效率,这里介绍了用Microsoft Visual Basic6.0(以下简称VB)编程来制作乡镇(炮点)雨量报表的技巧。 相似文献