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毕力格达布希拉图苏立娟佟小林李静 《内蒙古气象》2017,(3):33-38
为了实现人工影响天气区域联防作业模式,利用Web GIS技术,设计研发了内蒙古人工影响天气区域联防平台,由综合监测、作业指导、空域申请、作业监控和效果分析等5个模块组成。平台满足了自治区、盟市、旗县和作业点的业务功能需求,涵盖了监测预报、作业监控指挥、效果计算和信息上报等人工影响天气各阶段业务功能,同时打通了相邻作业单位之间的信息传递通道,实现了天气系统上下游地区的互联互通和重点作业潜力区的联合作业模式,为提升人工影响天气作业能力提供了技术支撑。 相似文献
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威海市人工影响天气作业指挥管理系统 总被引：2，自引：1，他引：2
威海市人工影响天气作业指挥、管理系统将威海市人工影响天气的研究成果与作业经验结合在一起，使作业指挥规范化、作业流程标准化。系统的实时记忆功能为人工影响天气工作的管理、业务技术总结提供了丰富的信息和便利，系统提高了威海市人工影响天气工作的管理水平和作业指挥水平。 相似文献
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地市级人工影响天气业务技术系统 总被引：12，自引：1，他引：11
以GIS为基础,把人工增雨、防雹资料分析、作业指挥、数据传递、效果分析等项市级人工增雨、防雹业务,较完整地汇总到一个工作平台上,建立了可视化地市级人工影响天气业务技术系统。该系统依据雷达图像和增雨、防雹的不同特点,自动确定高炮作业参数,自动形成和发布作业指令并通过采用了GPRS（通用无线分组业务）技术的“固定型人工影响天气作业指令接收机”安全、无延迟地接收作业指令,形成了地市级指挥中心直接指挥作业点的作业模式。该系统较好地解决异地数据共享和异地事务处理问题,实现地市级人工影响天气指挥的业务化,具有可移植性。 相似文献
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根据毕节地区人工影响天气工作的发展现状和规模,分析出目前毕节地区存在着人员编制没有落实、科技含量没有明显增加、基层作业队伍不稳定、基层设施建设不完善、无法用科学手段进行作业效益评估等问题。结合新业务技术体制改革对毕节地区人工影响天气工作的发展进行思考,提出解决问题的办法。 相似文献
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省市县三级人工影响天气作业指挥体制探讨 总被引：2，自引：1，他引：1
为优化配置省、市、县三级人工影响天气指挥作业资源,依据各级人工影响天气办公室的职责范围和任务特点,进行省、市、县三级人工影响天气作业指挥体制探讨。提出省级主要负责全省飞机人工增雨作业和全省地面人工影响天气预警、作业信息收集、监测等工作,市级主要负责属地作业点的直接指挥作业工作,县级主要进行作业监测工作。该体系体现市级指挥中心直接指挥作业点作业的模式特长,发挥省级飞机作业和地面作业预警的技术优势,减少县级人工影响天气办公室因人员少、技术力量薄弱等带来的作业水平不高的问题。解决三级资源共享和作业指令接收中的时间延迟等问题,提高作业时效和水平。 相似文献
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长春市人工影响天气作业指挥系统简介 总被引：1，自引：0，他引：1
长春市人工影响天气作业指挥系统的方案设计和研制,主要根据长春市人工增雨防雹减灾作业和空中云水资源开发实际需求,结合吉林省现有气象业务系统,以新一代多普勒天气雷达为依托,建立了从数据资料采集、天气预警、作业条件判别、作业决策、作业指令发布、作业指挥、作业定位跟踪、作业效果评估,到作业信息统计、存储、上报等高度集成化、可视化、网络化的新一代业务技术平台,本系统对于地（市）级人工影响天气作业指挥系统建设具有一定的示范作用。 相似文献
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四川省人工影响天气业务系统功能 总被引：2，自引：0，他引：2
耿蔚 《高原山地气象研究》2012,32(2):91-94
介绍了四川省人工影响天气业务技术系统的组成功能及应用情况。该系统集成度和自动化程度比较高、实时性和实用性强、业务化运行稳定;实现了多种尺度和不同种类信息的实时采集、快速传输和直观显示,具有业务管理、作业预警信息发布、作业决策指挥、作业效果评估结果及时发布等多种功能。该系统的运用,加强了人工影响天气业务的管理,大大的提升了人影业务工作的效率。 相似文献
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安徽省人工影响天气信息管理与作业指挥系统设计与开发 总被引：1，自引：0，他引：1
为了提高人工影响天气信息管理和作业指挥能力,设计开发了针对省级人工影响天气信息管理与作业指挥的业务系统。系统应用数据库和网络技术,设计开发了人工影响大气信息数据库,并采用角色和极限双重管理模式,对人工影响天气信息数据库进行管理。系统针对安徽实际设计了合理的地面作业指挥流程,开发了地面作业指挥平台,提供了省级人工影响天气指导产品,并对作业流程中关键环节进行技术控制,为安徽全省人工影响天气地面作业安全提供了保障平台,在实际业务中发挥了重要的作用。 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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Comparing the theoretical versions of the Beaufort scale, the T-Scale and the Fujita scale 总被引：1，自引：0，他引：1
G. Terence Meaden S. Kochev L. Kolendowicz A. Kosa-Kiss Izolda Marcinoniene Michalis Sioutas Heino Tooming John Tyrrell 《Atmospheric Research》2007,83(2-4):446-449
2005 is the bicentenary of the Beaufort Scale and its wind-speed codes: the marine version in 1805 and the land version later. In the 1920s when anemometers had come into general use, the Beaufort Scale was quantified by a formula based on experiment. In the early 1970s two tornado wind-speed scales were proposed: (1) an International T-Scale based on the Beaufort Scale; and (2) Fujita's damage scale developed for North America. The International Beaufort Scale and the T-Scale share a common root in having an integral theoretical relationship with an established scientific basis, whereas Fujita's Scale introduces criteria that make its intensities non-integral with Beaufort. Forces on the T-Scale, where T stands for Tornado force, span the range 0 to 10 which is highly useful world wide. The shorter range of Fujita's Scale (0 to 5) is acceptable for American use but less convenient elsewhere. To illustrate the simplicity of the decimal T-Scale, mean hurricane wind speed of Beaufort 12 is T2 on the T-Scale but F1.121 on the F-Scale; while a tornado wind speed of T9 (= B26) becomes F4.761. However, the three wind scales can be uni-fied by either making F-Scale numbers exactly half the magnitude of T-Scale numbers [i.e. F′half = T / 2 = (B / 4) − 4] or by doubling the numbers of this revised version to give integral equivalence with the T-Scale. The result is a decimal formula F′double = T = (B / 2) − 4 named the TF-Scale where TF stands for Tornado Force. This harmonious 10-digit scale has all the criteria needed for world-wide practical effectiveness. 相似文献
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准两年振荡对大气中微量气体分布的影响 总被引：11，自引：5，他引：6
NCAR的包含化学、辐射、动力相互作用的两维模式（SOCRATES）移植回国后进行了初步的模拟试验,用以研究某些对环境问题重要的微量气体的化学、辐射、动力传输过程。在不考虑极地平流层云和气溶胶表面非均相化学等情况下,模式积分多年,计算结果稳定,模拟的风场、温度场显示出正常的季节变化,模拟的微量气体分布与卫星实测资料对照,结果也比较一致。为了探讨热带平流层风场的准两年周期振荡（QBO）对平流层微量气体分布的影响,我们做了QBO强迫的数值试验,即在模式中加入QBO强迫,并与不考虑QBO强迫的模拟结果对比。结果表明,QBO与其相关的次级环流所引起动力输送的变化,使平流层微量气体分布发生变化。 相似文献
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The impact of high resolution modern vegetation cover on the West African climate is examined using the International Centre for Theoretical Physics Regional Climate Model implementing the NCAR Community Land Model. Two high resolution 25 km long-term simulations driven by the output from a coarser 50-km resolution simulation are performed for the period 1998–2010. One high resolution simulation uses an earlier and coarser-resolution version of plant functional type distribution and leaf area index, while the other uses a more recent, higher-quality, and finer-resolution version of the data. The results indicate that the new land cover distribution substantially alters the distribution of temperature with warming in Central Nigeria, northern Gulf of Guinea and part of the Sahel due to the replacement of C4 grass with corn; and cooling along the coastlines of the Gulf of Guinea and in Central Africa due to the replacement of C4 grass with tropical broadleaf evergreen trees. Changes in latent heat flux appear to be largely responsible for these temperature changes with a net decrease (increase) in regions of warming (cooling). The improved land cover distribution also results in a wetter monsoon season. The presence of corn tends to favor larger precipitation amounts via more intense events, while the presence of tropical broadleaf evergreen trees tends to favor the occurrence of both more intense and more frequent events. The wetter conditions appear to be sustained via (1) an enhanced soil moisture feedback; and (2) elevated moisture transport due to increased low-level convergence in regions south of 10N where the most substantial land cover differences are present. Overall the changes induced by the improved vegetation cover improve, to some extent, the performance of the high resolution regional climate model in simulating the main West African summer monsoon features. 相似文献
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由中国历史气候记录对季风导致唐朝灭亡说的质疑 总被引：1，自引：0，他引：1
张德二 《气候变化研究进展》2008,4(2):126-130
2007年1月4日杂志发表了Yancheva等10人的题为"Influence of the intertropical convergence zone on the East-Asian monsoon"(热带辐合带对东亚季风的影响)的论文[1],这是德国波兹坦地学研究中心气候动力与沉积学科的主管豪格(G.H.Haug)率领的科研小组的一项成果,认为是季风的变化引起的长期干旱导致了唐朝的灭亡. 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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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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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