电视气象节目的市场化运营     

张实  吕国君  李静 《黑龙江气象》2006,(3):40-41

在当今以受众者为核心的传播时代,电视气象节目的发展应与电视传媒的整体变革同步进行;逐步完善节目的内容和形式,逐步达到受众的欣赏要求,逐步实现节目的市场化运营.  相似文献   

编程实现在设备出现故障时气象资料的及时获取     

李兴宝 《黑龙江气象》2006,(4):41-41,43

1引言Micaps气象资料在天气预报业务工作中发挥着巨大的作用。各级气象台站使用PCVSAT单收站接收气象卫星广播资料,由于单收站计算机设备老化严重,又买不到支持PCVSAT卡的计算机主板,PCVSAT计算机无法更新,故障率不断提高,出现故障时卫星  相似文献   

气象信息网站后台管理技术研究     

王林香  陈爽  高宾勇 《气象与环境科学》2006,(3):78-79

对当前气象信息网站进行概述,就气象网站后台管理的开发应用从结构和技术上进行了分析.  相似文献   

高空气象探测的静态特征量     

张永亮 《气象与环境科学》2006,(3):88-89

根据高空气象探测系统的业务需求,较为详细地介绍了灵敏度、量程及测量范围、线性度、迟滞、重复性、准确度、分辨率、漂移等探测系统的静态特征量.  相似文献   

气象因子对金花梨生长发育的影响     

刘晓天  杨全勇 《气象与环境科学》2006,(4):52-53

通过试验研究,探讨主要气象因子在唐河县的变化规律和对金花梨生长发育的影响,研究金花梨在遭受灾害性天气影响时,采取相应的技术措施,确保金花梨的高产、稳产.  相似文献   

对临汾人工影响天气工作的调研报告          下载免费PDF全文

王智娟  薛廷枝  史海平  丁锐钦  李国强 《山西气象》2006,(2):4-5,11

人工增雨防雹是直接为工农业生产服务的公益性事业,有利于促进草木植被生长,可有效地扑救森林、草场火灾,是保护和改善生态环境的重要措施;可以减轻大气污染程度,改善空气质量,有益于人们的身心健康;可以缓解工业、农业和人民生活用水供需矛盾,促进社会经济可持续发展。分析表明,凡是降水量明显偏少的年份,粮食大都减产;年降雨量多的年份,粮食大都增产。这表明,人工增雨消雹对于经济建设和社会发展尤其是对农业生产有着重要的意义。  相似文献   

卫星气象资料在地面观测中的应用     

张红霞 《山西气象》2006,(2):39-39

测报是预报的基础，测报的质量直接关系到天气预报是否准确。目前PC-VSAT小站均配备到了县级观测站，因此，各地观测站都能通过小站接受到气象卫星下发的丰富的气象信息，如高空、地面常规资料，FY-2C卫星云图，欧洲中心、日本数值中心的数值预报产品，T213数值预报产品等。如果观测员能有效利用这些资料，在每次观测前对影响本地区的天气系统进行跟踪了解，将会大大提高测报技术质量。  相似文献   

The Impact of Atmospheric Heat Sources over the Eastern Tibetan Plateau and the Tropical Western Pacific on the Summer Rainfall over the Yangtze-River Basin   总被引：9，自引：0，他引：9  

简茂球  乔云亭  袁卓建  罗会邦 《大气科学进展》2006,23(1):149-155

The variability of the summer rainfall over China is analyzed using the EOF procedure with a new parameter （namely, mode station variance percentage） based on 1951-2000 summer rainfall data from 160 stations in China. Compared with mode variance friction, the mode station variance percentage not only reveals more localized characteristics of the variability of the summer rainfall, but also helps to distinguish the regions with a high degree of dominant EOF modes representing the analyzed observational variable. The atmospheric circulation diagnostic studies with the NCEP/NCAR reanalysis daily data from 1966 to 2000 show that in summer, abundant （scarce） rainfall in the belt-area from the upper-middle reaches of the Yangtze River northeastward to the Huaihe River basin is linked to strong （weak） heat sources over the eastern Tibetan Plateau, while the abundant （scarce） rainfall in the area to the south of the middle-lower reaches of the Yangtze River is closely linked to the weak （strong） heat sources over the tropical western Pacific.  相似文献   

Wind-Driven, Double-Gyre, Ocean Circulation in a Reduced-Gravity, 2.5-Layer, Lattice Boltzmann Model     

钟霖浩  冯士德  罗德海  高守亭 《大气科学进展》2006,23(4):561-578

A coupled lattice Boltzmann （LB） model with second-order accuracy is applied to the reduced-gravity, shallow water, 2.5-layer model for wind-driven double-gyre ocean circulation. By introducing the secondorder integral approximation for the collision operator, the model becomes fully explicit. The Coriolis force and other external forces are included in the model with second-order accuracy, which is consistent with the discretization accuracy of the LB equation. The feature of the multiple equilibria solutions is found in the numerical experiments under different Reynolds numbers based on this LB scheme. With the Reynolds number increasing from 3000 to 4000, the solution of this model is destabilized from the anti-symmetric double-gyre solution to the subtropic gyre solution and then to the subpolar gyre solution. The transitions between these equilibria states are also found in some parameter ranges. The time-dependent variability of the circulation based on this LB simulation is also discussed for varying viscosity regimes. The flow of this model exhibits oscillations with different timescales varying from subannual to interannual. The corresponding statistical oscillation modes are obtained by spectral analysis. By analyzing the spatiotemporal structures of these modes, it is found that the subannual oscillation with a 9-month period originates from the barotropic Rossby basin mode, and the interarmual oscillations with periods ranging from 1.5 years to 4.6 years originate from the recirculation gyre modes, which include the barotropic and the baroclinic recirculation gyre modes.  相似文献   

Boundary-Layer Wind Structure in a Landfalling Tropical Cyclone   总被引：1，自引：0，他引：1  

唐晓东  谈哲敏 《大气科学进展》2006,23(5):737-749

In this study, a slab boundary layer model with a constant depth is used to analyze the boundary-layer wind structure in a landfalling tropical cyclone. Asymmetry is found in both the tangential and radial components of horizontal wind in the tropical cyclone boundary layer at landfall. For a steady tropical cyclone on a straight coastline at landfall, the magnitude of the radial component is greater in the offshoreflow side and the tangential component is greater over the sea, slightly offshore, therefore the greater total wind speed occurs in the offshore-flow side over the sea. The budget analysis suggests that： （1） a greater surface friction over land produces a greater inflow and the nonlinear effect advects the maximum inflow downstream, and （2） a smaller surface friction over the sea makes the decrease of the tangential wind component less than that over land. Moreover, the boundary layer wind structures in a tropical cyclone are related to the locations of the tropical cyclone relative to the coastline due to the different surface frictions. During tropical cyclone landfall, the impact of rough terrain on the cyclone increases, so the magnitude of the radial component of wind speed increases in the offshore-flow side and the tangential component outside the radius of maximum wind speed decreases gradually.  相似文献