渤海海面太阳辐照强度的观测分析与计算方法研究
The observation analyses and calculation method studies of solar irradiation at sea surface for the Bohai Sea
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摘要: 对渤海海面(1998-09-24～10-07和1999-04-28～05-11)实测太阳辐射日总量同云量的关系和春、秋季的对比关系及其与插值计算出的晴日太阳辐射日总量的关系进行了分析,并同烟台(福山)测站的结果进行了对比分析.通过分析发现,渤海海面太阳辐射日总量春季远大于秋季,其无云条件下的太阳辐射日总量与插值计算出的晴日太阳辐射日总量的差异秋季大于春季.分析表明,海陆温差引起的海面大气垂直输送与水汽物的产生是造成这种差异的主要原因.采用经验公式对渤海海面太阳辐射日总量进行计算,计算结果与实测结果具有较好的一致性.结果表明所用经验公式及推算出的参数适合于春、秋季渤海海面太阳辐照度的计算.Abstract: Analyzed are the observations(24 September to 7 October 1998,28 April to 11 May 1999) of daily solar irradiation of the Bohai Sea area and cloud.It is found that the daily solar radiation of the Bohai Sea area in spring is much greater than in autumn,and the difference of clear-day solar radiation between the observed and the theoretically calculated results in autumn is greater than in spring.It is thought that the development of something like cloud and fog resulted from the vertical transportation of sea surface moisture is the main cause.Moreover,the daily solar radiation of the Bohai Sea is calculated by an empirical formulation mainly based on cloud parameters.There is a relatively good consistency between the observation and the calculation results.It indicates that the calculation method and the parameters used in the for mulation are suitable for calculating the daily solar radiation of the Bohai Sea area in spring and autumn.
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