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2011年西安世园会花卉气象服务探索与实践 总被引：1，自引：0，他引：1
根据2011年西安世界园艺博览会气象服务需求,收集整理206种参展花卉的相关信息,建立花卉生长习性气象指标、分科属种植信息、灾害敏感性、展园种植信息等数据库;运用模糊综合评判方法和专家打分方法分别建立了艳丽指数、移栽指数、喷洒指数、遮蔽指数等花卉气象指数模型和花期、果期、生育期适宜气象条件预报模型;开发了基于信息检索和预报服务为主要功能的西安世园会花卉气象服务系统,为西安世界园艺博览会提供花卉的生长和管理等方面的气象服务,并取得了较好的服务效果。 相似文献
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气象为社会主义新农村建设服务大有可为 总被引：5，自引：3，他引：5
根据江西省气象局和江西省委农工部联合开展的“气象为建设社会主义新农村服务“专题调研活动结果,进行了气象为社会主义新农村建设服务的需求分析,并针对存在的差距和问题,提出了相应的对策和措施.研究结果认为,社会主义新农村建设需要更优质的气象服务,气象为社会主义新农村建设服务可以有更大作为.扎实做好社会主义新农村建设中的各项气象服务工作,是气象部门围绕中心、服务大局的具体行动和应尽职责.各级气象部门应以贯彻落实2006年国务院三号文件为契机,牢固树立“公共气象、安全气象、资源气象“新理念,不断深化业务技术体制改革,致力于实现为社会主义新农村建设服务的气象科技新突破,将气象为社会主义新农村建设服务纳入新农村公共服务体系,进一步健全农村气象信息传播网络,努力提供优质气象服务,提高农村和农民利用气象科技趋利避害的能力. 相似文献
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北京空气污染气象条件的预报试验 总被引：3，自引：0，他引：3
空气污染与气象条件之间的关系十分密切,开展空气污染气象预报将为控制与减少污染,避免危险污染事件的发生,以及利用有利气象条件进行自然净化提供气象服务的科学依据。因此,空气污染气象预报是气象部门为环境保护服务的重要内容之一。 气象科学研究院、北京气象科学研究所等单位自 相似文献
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<正>1引言农业历来是国民经济的基础,靠天吃饭是我国的国情,农业是最易受气象条件影响的脆弱行业,农民仍然是最需要提供专业气象服务保障的弱势群体。近几年黑龙江省气象部门通过开展"三农"气象服务专项建设,显著提高了县级农业气象服务能力,取得了较明显的经济效益和社会效益。但是,在农业产业化格局调整和气候变化背景下,与现代农业越来越高的服务需求相比,仍然存在较大的差距。进一步提高气象为农服务能力,实现气象服务现代化,使 相似文献
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文章系统基于地理信息技术支持,采用Arc Gis地图引擎、VS2010、SQL Server2008软件开发,采用B/S+C/S的模式设计。集成葡萄气象指标、葡萄生产管理、气象条件分析和评价、信息化处理等现代化技术,开发乌海市葡萄特色气象服务系统软件。以葡萄气象指标为基础,深入调查了解葡萄生产与气象条件和气象灾害之间的关系;采用气象资料分析和评价的方法,开展当地葡萄特色产业气象信息服务;根据气象情况和葡萄实际生长发育信息,分析葡萄生长发育周期与气象条件的匹配状况,对葡萄生长发育将造成的影响或危害,给出相对应的葡萄生产管理对策措施;以此对葡萄种植产业建立多层面、全方位的气象信息综合保障,为乌海市葡萄特色产业提供强有力的气象信息技术支撑,增强气象信息服务于葡萄特色产业的综合能力。 相似文献
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通过在民丰县安迪尔河一带种植的中晚熟甜瓜栽培模式的调查与当地气象条件的统计分析，总结了甜瓜栽培与气象服务指标，分析了甜瓜各发育期的气象条件及气象灾害。 相似文献
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2001年小麦全生育期气象条件分析 总被引：1，自引：0，他引：1
通过对2000－2001年度小麦全生育期的气象条件分析，发现不良的气象条件和气象灾害、病虫害等是导致平阴县小麦减产的主要因素。评价了气象条件对小麦生长和产量的影响，为小麦的优质高产提供依据。 相似文献
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气象与"三农"工作关系密切,气象条件直接关系到农业的收成和农民的收入。通过调研现阶段宁海农业发展对气象服务的需求,分析了气象为农服务现状,着重从机制体制、服务效益、人才队伍等方面进行了剖析,针对存在的问题提出了相应的对策建议。 相似文献
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The spatial and temporal variations of daily maximum temperature(Tmax), daily minimum temperature(Tmin), daily maximum precipitation(Pmax) and daily maximum wind speed(WSmax) were examined in China using Mann-Kendall test and linear regression method. The results indicated that for China as a whole, Tmax, Tmin and Pmax had significant increasing trends at rates of 0.15℃ per decade, 0.45℃ per decade and 0.58 mm per decade,respectively, while WSmax had decreased significantly at 1.18 m·s~(-1) per decade during 1959—2014. In all regions of China, Tmin increased and WSmax decreased significantly. Spatially, Tmax increased significantly at most of the stations in South China(SC), northwestern North China(NC), northeastern Northeast China(NEC), eastern Northwest China(NWC) and eastern Southwest China(SWC), and the increasing trends were significant in NC, SC, NWC and SWC on the regional average. Tmin increased significantly at most of the stations in China, with notable increase in NEC, northern and southeastern NC and northwestern and eastern NWC. Pmax showed no significant trend at most of the stations in China, and on the regional average it decreased significantly in NC but increased in SC, NWC and the mid-lower Yangtze River valley(YR). WSmax decreased significantly at the vast majority of stations in China, with remarkable decrease in northern NC, northern and central YR, central and southern SC and in parts of central NEC and western NWC. With global climate change and rapidly economic development, China has become more vulnerable to climatic extremes and meteorological disasters, so more strategies of mitigation and/or adaptation of climatic extremes,such as environmentally-friendly and low-cost energy production systems and the enhancement of engineering defense measures are necessary for government and social publics. 相似文献
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Yuepeng PAN Mengna GU Yuexin HE Dianming WU Chunyan LIU Linlin SONG Shili TIAN Xuemei Lü Yang SUN Tao SONG Wendell W. WALTERS Xuejun LIU Nicholas A. MARTIN Qianqian ZHANG Yunting FANG Valerio FERRACCI Yuesi WANG 《大气科学进展》2020,37(9):933-938
正While China’s Air Pollution Prevention and Control Action Plan on particulate matter since 2013 has reduced sulfate significantly, aerosol ammonium nitrate remains high in East China. As the high nitrate abundances are strongly linked with ammonia, reducing ammonia emissions is becoming increasingly important to improve the air quality of China. Although satellite data provide evidence of substantial increases in atmospheric ammonia concentrations over major agricultural regions, long-term surface observation of ammonia concentrations are sparse. In addition, there is still no consensus on 相似文献
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Observed daily precipitation data from the National Meteorological Observatory in Hainan province and daily data from the National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanalysis-2 dataset from 1981 to 2014 are used to analyze the relationship between Hainan extreme heavy rainfall processes in autumn (referred to as EHRPs) and 10–30 d low-frequency circulation. Based on the key low-frequency signals and the NCEP Climate Forecast System Version 2 (CFSv2) model forecasting products, a dynamical-statistical method is established for the extended-range forecast of EHRPs. The results suggest that EHRPs have a close relationship with the 10–30 d low-frequency oscillation of 850 hPa zonal wind over Hainan Island and to its north, and that they basically occur during the trough phase of the low-frequency oscillation of zonal wind. The latitudinal propagation of the low-frequency wave train in the middle-high latitudes and the meridional propagation of the low-frequency wave train along the coast of East Asia contribute to the ‘north high (cold), south low (warm)’ pattern near Hainan Island, which results in the zonal wind over Hainan Island and to its north reaching its trough, consequently leading to EHRPs. Considering the link between low-frequency circulation and EHRPs, a low-frequency wave train index (LWTI) is defined and adopted to forecast EHRPs by using NCEP CFSv2 forecasting products. EHRPs are predicted to occur during peak phases of LWTI with value larger than 1 for three or more consecutive forecast days. Hindcast experiments for EHRPs in 2015–2016 indicate that EHRPs can be predicted 8–24 d in advance, with an average period of validity of 16.7 d. 相似文献
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Based on the measurements obtained at 64 national meteorological stations in the Beijing–Tianjin–Hebei (BTH) region between 1970 and 2013, the potential evapotranspiration (ET0) in this region was estimated using the Penman–Monteith equation and its sensitivity to maximum temperature (Tmax), minimum temperature (Tmin), wind speed (Vw), net radiation (Rn) and water vapor pressure (Pwv) was analyzed, respectively. The results are shown as follows. (1) The climatic elements in the BTH region underwent significant changes in the study period. Vw and Rn decreased significantly, whereas Tmin, Tmax and Pwv increased considerably. (2) In the BTH region, ET0 also exhibited a significant decreasing trend, and the sensitivity of ET0 to the climatic elements exhibited seasonal characteristics. Of all the climatic elements, ET0 was most sensitive to Pwv in the fall and winter and Rn in the spring and summer. On the annual scale, ET0 was most sensitive to Pwv, followed by Rn, Vw, Tmax and Tmin. In addition, the sensitivity coefficient of ET0 with respect to Pwv had a negative value for all the areas, indicating that increases in Pwv can prevent ET0 from increasing. (3) The sensitivity of ET0 to Tmin and Tmax was significantly lower than its sensitivity to other climatic elements. However, increases in temperature can lead to changes in Pwv and Rn. The temperature should be considered the key intrinsic climatic element that has caused the "evaporation paradox" phenomenon in the BTH region. 相似文献
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Storms that occur at the Bay of Bengal (BoB) are of a bimodal pattern, which is different from that of the other sea areas. By using the NCEP, SST and JTWC data, the causes of the bimodal pattern storm activity of the BoB are diagnosed and analyzed in this paper. The result shows that the seasonal variation of general atmosphere circulation in East Asia has a regulating and controlling impact on the BoB storm activity, and the “bimodal period” of the storm activity corresponds exactly to the seasonal conversion period of atmospheric circulation. The minor wind speed of shear spring and autumn contributed to the storm, which was a crucial factor for the generation and occurrence of the “bimodal pattern” storm activity in the BoB. The analysis on sea surface temperature (SST) shows that the SSTs of all the year around in the BoB area meet the conditions required for the generation of tropical cyclones (TCs). However, the SSTs in the central area of the bay are higher than that of the surrounding areas in spring and autumn, which facilitates the occurrence of a “two-peak” storm activity pattern. The genesis potential index (GPI) quantifies and reflects the environmental conditions for the generation of the BoB storms. For GPI, the intense low-level vortex disturbance in the troposphere and high-humidity atmosphere are the sufficient conditions for storms, while large maximum wind velocity of the ground vortex radius and small vertical wind shear are the necessary conditions of storms. 相似文献
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《大气和海洋科学快报》2013,(4):227
正AIMS AND SCOPE Atmospheric and Oceanic Science Letters (AOSL) publishes short research letters on all disciplines of the atmosphere sciences and physical oceanography. 相似文献
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《大气和海洋科学快报》2014,7(6):F0003-F0003
AIMS AND SCOPE
Atmospheric and Oceanic Science Letters （AOSL） publishes short research letters on all disciplines of the atmosphere sciences and physical oceanography. Contributions from all over the world are welcome. 相似文献
Atmospheric and Oceanic Science Letters （AOSL） publishes short research letters on all disciplines of the atmosphere sciences and physical oceanography. Contributions from all over the world are welcome. 相似文献
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《大气和海洋科学快报》2014,(5):F0003-F0003
AIMS AND SCOPE Atmospheric and Oceanic Science Letters （AOSL） pub- lishes short research letters on all disciplines of the atmos- phere sciences and physical oceanography. Contributions from all over the world are welcome. 相似文献
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《大气科学进展》2014,(6)
正Aims Scope Advances in Atmospheric Sciences(AAS)is an international journal on the dynamics,physics,and chemistry of the atmosphere and ocean with papers across the full range of the atmospheric sciences,co-published bimonthly by Science Press and Springer.The journal includes Articles,Note and Correspondence,and Letters.Contributions from all over the world are welcome. 相似文献