对流边界层对巴格达机场站上空无线电探空仪飞行路径的影响(案例研究)

IF 1.1 Q3 AGRICULTURE, MULTIDISCIPLINARY IRAQI JOURNAL OF AGRICULTURAL SCIENCES Pub Date : 2023-12-29 DOI:10.36103/ijas.v54i6.1861
A. F. Hassoon, T. O. Roomi
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引用次数: 0

摘要

这项研究的目的是调查不同天气条件下地表加热产生的对流条件对辐射计移动轨迹的影响。本研究使用的数据分为来自巴格达机场站的当地地表天气和来自欧洲中期天气预报中心(ECMWF)的再分析天气地表数据,后者还包含显热通量和边界层高度等先行参数,在巴格达省内外都有大量精确的空间分布。第三类数据来自无线电探空仪,用于观测冬季(1 月)和夏季(7 月)上午 12 时的大气高层。安装在无线电探空仪上的软件用于重新编码风速、温度和其他参数,如全球定位系统 (GPS),所有数据均由 ArcGISpro 绘制和表示。结果显示,在对流和非常规条件下,无线电探空仪的路径有所不同。对流限制了无线电探空仪路径的移动(上层的风速剖面很低,达不到 30 米/秒,这与非常规情况相反,风速达到 65 米/秒以上),因为不同方向上的湍流和随机性,这种情况与非常规情况相反,有很大的自由移动,气球在非常规情况下(1 月的情况)达到很大的上层距离。
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EFFECT OF THE CONVECTIVE BOUNDARY LAYER ON RADIOSONDE FLIGHT PATH OVER BAGHDAD AIRPORT STATION (CASE STUDY)
This research was aimed to investigate effect of the convection conditions resulted from surface heating at different weather condition on movement track of radiosonde. Data used in this study divided to surface local weather from Baghdad airport station and reanalysis weather surface data from European center medium weather forecast (ECMWF) that contain also advance parameter parameters such as sensible heat flux and boundary layer height and other, all have large accurate spatial distribution inside and outside Baghdad province. Third type data from radiosonde used to observed atmospheric upper layer through selected days from winter season (January month) and summer season (July month) all at time 12AM. Software installed in radiosonde used to recoded wind speed, temperature and other parameter such as global position system (GPS) all plotted and represented by ArcGISpro. Results show different in the radiosone path at convection and nonconventional conditions. Convection constraint movement of radiosonde path (wind speed profiles very low don’t reach to 30m/s in upper layer, this is opposite to nonconventional case, it reach to more than 65m/s) because turbulent and random in different directions, this case is opposite to the nonconventional condition there is large free movement, where balloon reach to large and upper distance in nonconventional (Jan. cases).
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来源期刊
IRAQI JOURNAL OF AGRICULTURAL SCIENCES
IRAQI JOURNAL OF AGRICULTURAL SCIENCES AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
2.30
自引率
50.00%
发文量
140
审稿时长
6 weeks
期刊介绍: IRAQI JOURNAL OF AGRICULTURAL SCIENCES (IJAS)is the first agric. scientific and refereed journal established in Iraq. The first volume was published in 1966. IJAS is registered in the number 137 in 1988 of the Baghdad National Library. Years ago, it was published with one issue a year. For the time being, it is published bimonthly (6 issues for a volume). IJAS Deal with: Field Crops. Plant Breeding. Agricultural Economics. Agricultural Extension. Agricultural Mechanization. Basic sciences. Hort. Sciences. Animal Husbandry. Food Technology, Plant Pathology. Plant Entomology. Poultry Sciences. Soil Sciences. Water Resources. Veterinary. Biology.
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