共查询到20条相似文献，搜索用时 62 毫秒
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气象服务主动融入精准扶贫的思考 总被引：1，自引：0，他引：1
为更好地将气象服务主动融入精准扶贫工作中,促进宁夏贫困地区早日脱贫,文章通过分析气象防灾减灾与精准脱贫的融合度、农村抵御气象灾害能力不足的主要原因、气象扶贫等方面问题,为气象工作提出建议。建议气象服务应从开展贫困群众气象服务需求调研、完善气象信息发布渠道、提高气象服务效益、提高贫困人群防灾减灾能力等4个方面开展,以将气象服务主动融入精准扶贫的工作中。 相似文献
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新型城镇化背景下基层气象部门为农服务对策研究 总被引：1，自引：0，他引：1
就当前新型城镇化进程中,基层气象部门如何做好为农服务进行分析和讨论,并着重从加强气象为农服务的组织体系建设,提升气象为农服务的特色、能力和水平,进一步增强农村气象灾害的防御能力,促进气象为农服务的保障机制建设等方面进行论述,提出了相应的对策及建议.将气象为农服务“两个体系”建设和“均等化”、“一体化”的公共气象服务与新型城镇化有机结合、共同推进,是基层气象部门当前及今后为农服务的重要任务. 相似文献
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1引言 2004年的气象服务工作以气象服务于“三农”和振兴吉林省工业基地为工作重点，以全面建设小康社会的气象服务为宗旨，认真贯彻落实“三大战略”，根据全国气象局长会议精神和全省气象局长会议确定的工作目标和工作任务，在气候异常、决策预报服务任务重、压力大的情况下，全年的预报服务工作取得显著成效。 相似文献
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气象工作的根本宗旨和核心任务就是为全社会提供高质量的公共服务产品和公共气象服务。提高公共气象服务能力的根本举措就是要大力推进气象现代化建设。坚定不移地推进气象现代化,提升公共气象服务能力是中国特色气象事业发展的基本经验,也是更好地服务浙江经济社会发展的根本任务。 相似文献
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民和县气象为农服务的现状与对策分析 总被引：1，自引：0，他引：1
《青海气象》2013,(4)
分析民和县当前气象为农服务工作的现状和存在的主要问题与不足,结合"农村气象灾害防御体系"和"农业气象服务体系"的建设,探索气象事业为全县农业生产服务的思路和方法,提出加强今后气象为农服务工作的对策,以期更好地为地方经济社会发展保驾护航。 相似文献
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如何做好农业气象服务 总被引：1，自引：0，他引：1
农业气象服务是我局的重要工作之一，在当前我县的农业产业结构调整中，如何发挥气象部门的职能作用，更好地为农业生产服务，帮助农民群众致富奔小康，是我们一项重要而光荣的任务。本文就如何做好农业气象服务的有关问题与注意事项作简单的探讨。 相似文献
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D. R. Butler 《Boundary-Layer Meteorology》1990,53(1-2):33-42
The boundary-layer resistance, r
d
, for water vapour transfer from single drops on a wheat leaf was derived from field measurements of the evaporation rate, drop temperature and air humidity. Parameters are estimated in an equation to calculate r
d
from drop diameter and wind speed. The relationship between resistance and wind speed is compared with that from other sources, and possible systematic errors in temperature measurements are examined using a model of the drop energy balance.On secondment from Department of Agricultural Sciences, University of Bristol, IACR, Long Ashton Research Station, Long Ashton, Bristol BS18 9AF, U.K. 相似文献
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K. O. Ogunjobi Y. J. Kim J. A. Adedokun S. Y. Ryu J. E. Kim 《Theoretical and Applied Climatology》2002,72(3-4):265-272
Summary ?Daily global and diffuse radiation measurements have been used to characterize the atmosphere optical conditions at Kwangju
(Lat.35.13N, Long.126.53E) and Seoul (Lat.37.57N, Long.126.98E) in South Korea and Ile-Ife (Lat.7.14N, Long.4.56E) in Nigeria.
The clearness index, (CI) which gives the percentage depletion by the sky of the incoming global radiation and the diffuse
ratio, (DR) which represents the effectiveness of the sky in scattering incoming radiation have been analyzed in this study. Results
show an average clearness index value of 0.57 for the year 1999 with maximum values occurring during the wet seasons at Ile-Ife.
The average clearness indexes for Kwangju and Seoul from 1998–2000 was 0.48 and 0.34, respectively, with both stations having
maximum clearness indexes in the winter seasons. The diffuse ratio was higher at Kwangju and Seoul than at Ile-Ife due to
heavy dust pollution from the Gobi desert in the Korea peninsula in spring, and high biomass burning at Kwangju in the fall.
Department of Physics, Obafemi Awolowo University, Ile-Ife, Nigeria
Received May 7, 2001; Revised November 24, 2001 相似文献
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《大气与海洋》2013,51(2):93-105
Abstract Global warming due to increased greenhouse gases is believed to result in not only higher surface temperatures but also an acceleration of the hydrological cycle leading to increased precipitation. Although climate models consistently predict increases in global temperatures due to increasing greenhouse gases and the accompanying global warming, observations at the climatic timescales necessary to confirm the models are rare. Multidecadal studies at global and regional scales are necessary to determine whether the presently observed changes in temperature and precipitation are due to short‐term fluctuations or long‐term trends. In this study, we address this issue by examining changes in temperature and precipitation on Long Island, New York over a 74‐year time period (1931 to 2004) using a network of rain gauges and temperature measurements. The mean annual temperature on Long Island has increased at a rate of 0.05°C per decade, which is less than that of observed global values and is most likely due to the urban warming effects of New York City, not large‐scale climate change. The mean total annual precipitation has increased at a rate of 0.71 cm per decade during the study period, which is consistent with global observations. Intra‐annual temperature fluctuations are decreasing at a rate of 0.36% per decade, while precipitation variations are increasing at a rate of 0.91% per decade. Empirical orthogonal function analysis indicates that variations in temperature and precipitation on Long Island are dominated by island‐wide fluctuations that are directly related to the North Atlantic Oscillation, the Arctic Oscillation, and the El Niño Southern Oscillation. 相似文献
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Climate Dynamics - Prospects for El Niño–Southern Oscillation (ENSO) predictability at long lead-times lie in the subsurface oceanic memory along the equatorial Pacific. Long considered... 相似文献
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中国气象科学研究院灾害天气国家重点实验室在广东、湖北、安徽与上海三省一市分别组建华南、华中、江淮以及长三角中尺度观测与应用试验基地,作者以华南基地为例详细介绍了中尺度基地(或中尺度天气业务平台)的实施情况以及新技术的应用,构成了试验性的中尺度天气业务平台,在华南基地建设的基础上分别组建华中、江淮以及长三角三大试验基地,探索提高中尺度灾害天气监测、预报与预警能力的有效途径。 相似文献
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S. Sethuraman 《Boundary-Layer Meteorology》1979,16(4):279-291
Momentum flux measurements by eddy correlation method and wave height measurements with a capacitance-type wave staff were carried out from a stable air-sea interaction buoy anchored 5 km off Tiana Beach, Long Island, New York State. A characteristic height of sea surfaceh
s was estimated from wave height spectra. A roughly linear variation of surface shear stress withh
s
was found for an aerodynamically rough sea surface. 相似文献
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凝结水作为干旱半干旱地区重要的组分,对生物土壤结皮具有重要的生态学作用。为阐明高寒沙区青海共和盆地生物土壤结皮表层5 cm凝结水水汽来源,利用2017年5—9月自制微渗仪对土壤表层5 cm不同类型生物土壤结皮(苔藓结皮、藻类结皮、物理结皮)和流沙凝结水进行了观测。结果表明:高寒沙区凝结水量随结皮发育程度变化呈增加趋势,表现为:苔藓结皮>藻类结皮>物理结皮>流沙;生物土壤结皮覆盖区凝结水量显著大于流沙凝结水量,即生物土壤结皮有利于凝结水的产生;凝结水主要由吸湿水和大气水汽凝结水与土壤凝结水两部分组成;观测期间,不同类型结皮日土壤凝结水量无显著性差异;吸湿水量和大气水汽凝结水总量显著高于土壤凝结水量(P<0. 05);随时间的变化,吸湿水和大气水汽凝结水与土壤凝结水对凝结水的贡献率呈波动性变化;吸湿水和大气水汽凝结水贡献率主要集中在65%～80%,土壤凝结水贡献率主要集中在20%～35%。 相似文献
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R. García T. Muñoz E. Hernández P. Ribera L. Gimeno 《Theoretical and Applied Climatology》2003,75(3-4):179-187
Summary ¶Long range forecasting of annual and seasonal average temperatures has been considered from two different approaches in an area centered over the Mediterranean Sea. They both are statistical approaches trying to forecast annual or seasonal mean temperature values several months in advance. The methods are Optimate Climate Normals and an extension of this called Climate Normal Functions. Both methods try to forecast temperature from the past behavior of the series. Their performances are examined and compared. The best results are obtained for Southern Europe, while Eastern Europe exhibits the poorest predictability. The results suggest that the North Atlantic Oscillation can be a major factor ruling predictability in some areas of the region considered.Received January 28, 2003; revised October 24, 2002; accepted December 7, 2002
Published online June 2, 2003 相似文献
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Petr Chýlek 《大气与海洋》2013,51(1):83-85
Abstract Long‐term observations of the water balance elements were carried out in the Izhora plateau located in northwest Russia. As a result of these investigations, the average recharge of the Leningrad artesian basin located south of the plateau was calculated. The infiltration to the karstic groundwater table was determined on the basis of groundwater fluctuations in the observations wells. 相似文献
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This article documents how Environment and Climate Change Canada’s Adjusted Daily Rainfall and Snowfall (AdjDlyRS) dataset was developed. The adjustments include (i) conversion of ruler measurements of snowfall to its water equivalent using a previously developed snow water equivalent (SWE) ratio map for Canada; (ii) corrections for gauge-related issues including undercatch and evaporation caused by wind effects and gauge-specific wetting loss, as well as for trace precipitation amounts, using previously developed procedures for Canada. Various data flags (e.g., accumulation flags) were also treated. This dataset contains all Canadian stations reporting daily rainfall and snowfall for which we have metadata to implement the adjustments. The length of the data record varies from one station to another, starting as early as 1840. The results show that the original unadjusted total precipitation data in Environment and Climate Change Canada’s digital archive underestimate the total precipitation in northeastern Canada by more than 25% and by about 10–15% in most of southern Canada. Such large underestimates make the original data unsuitable for water availability and/or balance studies or for numerical model validation, among many other applications. The use of the assumed 10:1 SWE ratio for the archived total precipitation data is the primary cause of the underestimate, which is most severe in northeastern Canada. The trace correction adds 5–20% to precipitation values in northern Canada but less than 5% in southern Canada. The gauge-related corrections do not show an organized spatial pattern but add 5–10% to the precipitation at 312 stations. Long runs (≥3 months) of miscoded missing values were also identified and corrected.
The latest version of the AdjDlyRS dataset is available from the Canadian Open Data Portal; currently it is version 2016, which contains 3346 stations and covers the period from station inception to February 2016. This dataset is suitable for producing gridded precipitation datasets, as well as other applications. 相似文献