共查询到20条相似文献，搜索用时 390 毫秒
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1将气压简表制作成EXCEL表格使用地面测报业务软件制作好气压简表后,为了排版或使用的方便,有时需把气压简表导出到EXCEL表格中。可先按住鼠标左键拖动,选择所要复制的气压简表,如本站气压简表,数据表格选中后,点击菜单项"计算"—"本站气压计算",按Ctrl+C键复制内容。启动EXCEL软件,新建一个表格,按Ctrl+V就可将整张本站气压简表复制到EXCEL表中。 相似文献
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每当更换水银气压表时,往往由于器差的不同而需要重新制作本站气压简表。利用查表手工制作,即使是老同志也往往需要几个小时,甚至十几个小时。如果使用微机,就可以快速准确的打印出来。我们利用“APPLEⅡ”打印一份完整的本站气压简表只需要6分钟,打印一份完整的海平面气压简表只需要4分钟。利用PC—1500打印一份完整的本站气压简表,也不过40多分钟;打印一份海平面气压简表,30分钟也就足够了。打印结果完全符合地面气象观测规范的要求。 相似文献
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目前虽然微机投入测报业务使用多年，但是在日常测报工作中，仍然需要使用海平面气压简表，特别是当微机出现故障时，只能使用简表查算海平面气压。当更换观测值班室或水银槽拔海高度改变后，就得重新制作海平面气压简表。过去常常用手工制作，计算工作量相当大，每个数据需要反复计算好几遍，误差也较大，很难达到规范要求。随着微机的普及、更新，为实现微机制作海平面气压简表提供了有利的条件。一海平面气压甲表的制作设P0为海平面气压，Ph为本站气压，根据拉普拉斯压高方程其中，h为水银槽拔海高度（单位：m），tm为空气柱平均温度（… 相似文献
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针对人工制作海平面气压及本站气压查算表存在的不足,介绍了如何使用MicrosoftExcel2000电子表格来完成这一制作过程,大大缩短了制作时间,提高了准确度. 相似文献
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笔者在日常地面气象测报检查工作中发现,有的台站个别观测员把原机制的本站气压查算简表和现机制的本站气压查算简表混为一谈。本站气压订正简表由整数表和小数表两部分组成。原机制的查算简表,是把气压的仪器差计算在整数表部分,小数表固定不变,因此凡更换气压表,必... 相似文献
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本站气压订正简表和海平面气压订正简表是每个气象台站必不可少的查算表格。本文设计出一种本站气压和海平面气压订正简表制作程序,分别命名为PBJB—1和PHJB—1,两个程序均采用Turbo Basic语言编制（程序清单略）。具体操作过程如下: PBJB—1程序使用前的准备: 第一步,对本站气压数组P_(b)(i,j)进行定义,即根据本站的气压读数和附属温度出现范围,确定P_(b)(i,j)所排的行、列数。 相似文献
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根据本人的摸索,在这里给大家介绍一种用BA－SIC语言制本站气压和海平面气压的简单方法。本程序使用非常方便,简单准确。几年来经在巴州气象台、轮台县气象局等台（站）局使用,效果明显,目前全州发报台站已推广使用。本程序根据《地面气象观测规范》的规定,计算出基层气象台站使用的本站气压简表和海平面气压佝表。设本站气压读数为r,测站纬度为qq,气压表器差为PP,技海高度为hh,附属温度为T。水银气压表读数三步订正值为：（l）仪器差订正：PI＝P＋PP;（2）重力差订正（C。）分纬度重力差与高度重力差两种。纬度重力差订正… 相似文献
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用微机制作本站气压和海平面气压查算简表和程序设计王凤刚（九台市气象局）自１９８７年４月，吉林省各基层气象站在地面测业务中开始使用ＰＣ—１５００微机计算和编发电报。这样，大大减轻了观测员的工作量，错情率也相应减少。ＰＣ—１５００微机经过七年多的使用，许... 相似文献
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我局从1999～2003年,测报工作连续4年未出现错情,在此期间共有1个250个班,9个百班无错通过上级业务部门验收.在仪器保管、使用、维护上符合要求,对外报送的各种表、簿都能做好出门合格. 相似文献
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Summary Considering the effects of causal mechanics on geophysical problems enables us to explain a number of phenomena, which cannot
be explained from conventional positions. This paper shows that the introduction of the force of causality in a simple barotropic
hydrodynamic model of weather forecasts results in the outcomes, which, on the one hand, can not be described from the positions
of classical hydro-thermodynamics, whilst on the other hand, exist in nature. 相似文献
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A. A. Lavrova E. S. Glebova I. V. Trosnikov V. D. Kaznacheeva 《Russian Meteorology and Hydrology》2010,35(6):363-370
Due to the complex orography and the presence of the moisture-saturated air, the Mediterranean region is characterized by
the increased baroclinic and convective instability, that leads to the sudden cyclogenesis and the formation of dangerous
weather phenomena. The results are given of the investigation of formation mechanisms of Mediterranean cyclones, peculiarities
of stages of their evolution and dynamical processes, which occur throughout the atmosphere, using the regional numerical
ETA model of the atmosphere by the example of individual cases of the cyclogenesis over the Mediterranean Sea. It is revealed
that the cold Arctic air outbreak (the intrusion of the cold Arctic air) to the south of the Western Europe, leading to the
formation of the areas of the baroclinic instability and the increased moisture content of the air in the area of the vortex
origin, favors the cyclogenesis. The use of the vertical coordinate η in the model enabled to compute more precisely the vertical
wind speed, therefore, the influence of the orography on the moisture content and precipitation increase became pronounced.
The transformation of the structure of meteorological fields in the course of the development of vortexes is considered. The
computation of the helicity is made, and it is shown that this characteristic can be one of the earliest predictors of cyclogenesis. 相似文献
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Chunguang CUI Wen ZHOU Hao YANG Xiaokang WANG Yi DENG Xiaofang WANG Guirong XU Jingyu WANG 《大气科学进展》2023,40(4):711-724
Here, we analyze the characteristics and the formation mechanisms of low-level jets(LLJs) in the middle reaches of the Yangtze River during the 2010 mei-yu season using Wuhan station radiosonde data and the fifth generation of the European Centre for Medium-Range Weather Forecasts(ERA5) reanalysis dataset. Our results show that the vertical structure of LLJs is characterized by a predominance of boundary layer jets(BLJs) concentrated at heights of 900–1200 m.The BLJs occur most frequently at 230... 相似文献
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On the determination of the height of the Ekman boundary layer 总被引：1，自引：1，他引：1
S. S. Zilitinkevich 《Boundary-Layer Meteorology》1972,3(2):141-145
The heighth
of the Ekman turbulent boundary layer determined by the momentum flux profile is estimated with the aid of considerations of similarity and an analysis of the dynamic equations. Asymptotic formulae have been obtained showing that, with increasing instability,h
increases as ¦¦1/2 (where is the non-dimensional stratification parameter); with increasing stability, on the other hand,h decreases as –1/2. For comparison, a simple estimate of the boundary-layer heighth
u
determined by the velocity profile is given. As is shown, in unstable stratification,h
u
behaves asymptotically as ¦¦–1, i.e., in a manner entirely different from that ofh
. 相似文献
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流场配置及地形对西南低涡形成的动力作用 总被引：10，自引：8，他引：10
本文采用定常二层模式讨论较小地形及高、低层流场配置对西南低涡形成的动力作用。指出了西南低涡的形成是与盆地、河谷以及其上气流分层有关的一种定常态.在上、下为西风分层时期,低层的浅薄暖湿西风有利于西南低涡的形成.在上、下为东、西风分层时期,上层浅薄东风亦有利于西南低涡的形成.小型的凸起山脉对西南低涡的形成没有作用. 相似文献
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1引言我国执行接地降阻剂测试的技术标准是全国电力系统起草的:“接地降阻剂暂行技术条件修改稿”。在技术要求中要求接地降阻剂的酸碱值应在7￣12范围内。在实际使用中发现该技术要求对接地降阻剂的酸碱值要求范围并不合理,需要分析和讨论。2接地降阻剂的PH值接地降阻剂的酸碱性对地网的使用寿命至关重要,为了不让接地降阻剂腐蚀接地体或者减弱接地降阻剂对接地体的腐蚀,在接地降阻剂测试的技术要求中,对接地降阻剂的酸碱度有一定的限制。国内各厂家用于生产接地降阻剂的偏弱酸的盐类进行了对镀锌钢材腐蚀的试验,结果是这些镀锌钢材均受到… 相似文献
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Summary ?Some features of the climate system that can be considered predictors of the onset and end of the convective season over
the Amazon were identified using one-month lag correlations and field composites. The fields analyzed were sea surface temperature
(SST), outgoing long-wave radiation (OLR), vertical velocity and upper tropospheric winds.
Warm (cold) anomalies in the SST in the tropical North Atlantic and the Caribbean Sea tend to be associated with delayed (early)
onsets. Likewise, there is a tendency towards a delayed (early) end of the convective season with cold (warm) anomalies in
these ocean regions. In addition, the SST in the cold tongue region of the equatorial Pacific is negatively, though weakly
correlated with the onset date. The signal of this SST is more evident in the case of the end date, which is earlier with
respect to its mean date in most of El Ni?o cases.
The convective activity intensity itself conditions the onset and the end of the convective season, as it is evidenced by
the behavior of the OLR and the vertical velocity fields. The more (less) intense the convective activity over South America
during the preceding month, the earlier the onset and the later the end of the convective season on the Amazon region.
The prediction of the onset and end dates of the convective season in the Amazon region was explored using a simple multiple
regression technique based on the variables that have shown precursor signals with respect to these dates. The correlation
coefficient between the predicted and the observed onset date is 0.81, and in the case of the end date, it is 0.76. The skill
to predict early, delayed and normal categories was high, since in more than two thirds of the cases the category was successfully
predicted, and there were no predictions of categories opposed to those observed.
Received July 23, 2001; revised February 22, 2002; accepted April 26, 2002 相似文献
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文章选用阴山山脉山北乌拉特后旗、白云、达茂旗、苏尼特左旗、化德,山南杭后旗、包头、呼和浩特、察右前旗、兴和1971—2000年气温、降水量、天气现象等资料进行对比分析,得到阴山山脉对内蒙古自治区中部地区气象要素影响初步结论。 相似文献