权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Composition of Diffuse Solar Radiation Models in Different Weathers as a Part of Meteorological Data

作为气象数据一部分的不同天气太阳漫辐射模型的组成

基本信息

批准号：
03650472
负责人：
NAGATA Tadahiko
金额：
$ 1.09万
依托单位：
Fukui University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1992
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03650472/
关键词：
Solar Radiation Diffuse Solar Radiation Sky Radiance Sky Radiance Distribution

项目摘要

If the characteristics of sky radiance distribution in different weathers are well known, it is relatively easy to make up diffuse solar radiation models in respective weathers based on the knowledge of it.Taking account of that, the study has been carried out for the purpose of clarifying the characteristics of sky radiance distribution in different weathers.In the process of attaining the purpose, it is the first necessary step that a lot of data on sky radiance distribution in different weathers and different solar altitudes are collected by actual measurement. lowever, no convenient instruments for the measurement of sky radiance distribution have not been on the market. And so, the author tried to experimentally produce an apparatus for rapid acquisition of the data on sky radiance distribution in 1991 and improved it in 1992. As the result of it,the apparatus has become good enough to be relied upon for practical use.As for the radiance distribution on clear skies or on overcast skies, pretty reliable models expressed in the form of mathematical equations could be derived through the theoretical consideration about the respective phenomena and the examination of the collected data.The category of intermediate skies comprises of a wide variety of skies which are neither clear nor overcast, and the characteristics of radiance distribution on each sky are complicated. As for the radiance distribution on intermediate skies, the author thinks that the model should be composed in a form similar to but a little different from the model for clear skies. But detailed mathematical expression is still under consideration.

如果对不同天气的天空辐射分布特征有一定的了解，那么建立相应天气下的散射太阳辐射模型就比较容易。鉴于此，为了弄清不同天气下的天空辐射分布特征，进行了研究。在研究过程中，通过实际测量，获得大量的不同天气、不同太阳高度下的天空辐射分布数据，这是进行天空辐射测量的第一步。更低的是，市场上还没有用于测量天空辐射分布的方便的仪器。为此，作者于1991年尝试研制了一种快速获取天空辐射分布数据的装置，并于1992年对其进行了改进。结果表明，该装置性能良好，可供实际使用。至于晴天和阴天的辐射亮度分布，透过理论上的考虑和对收集到的数据的分析，我们可以推导出一个相当可靠的数学方程式。中间天空的类别包括多种天空，它们既不是晴天或阴天，各天空的辐亮度分布特征复杂。对于中间天空的辐射率分布，作者认为模式的组成形式应与晴空模式类似，但略有不同。但具体的数学表达式仍在考虑之中。