| 日照迹线位置移动原理和软件设计 |
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| 引用本文： | 徐琼芳,高庆九.日照迹线位置移动原理和软件设计[J].气象科技,2011,39(2):207-211. |
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| 作者姓名： | 徐琼芳 高庆九 |
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| 作者单位： | 1. 南京信息工程大学大气科学学院,南京,210044;湖北省潜江市气象局,潜江,433100
2. 南京信息工程大学大气科学学院,南京,210044 |
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| 摘 要： | 根据地球自转和绕太阳公转轨迹规律,分析了黄赤交角、太阳赤纬、经度和太阳高度角对日照迹线形成的影响,解释了春分、秋分、夏至、冬至几个具有代表性日期日照迹线形成的规律,阐述了暗筒式日照计日照迹线位置随季节变化的原理。地球运动轨迹固定,以地球作为参照物,地球相对静止,太阳围绕地球转,太阳光在无任何遮挡的情况下,每日的日照迹线可严格求出。用严谨的理论依据,导出日照迹线公式,并设计出软件,每日日照迹线可任意全真显示。
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| 关 键 词： | 日照迹线 地球自转 太阳赤纬 软件设计 |
| 收稿时间： | 2009/12/19 0:00:00 |
| 修稿时间： | 2010/8/23 0:00:00 |
Principles of Sunlight Line Location Displacement and Software Design |
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| Xu Qiongfang and Gao Qingjiu.Principles of Sunlight Line Location Displacement and Software Design[J].Meteorological Science and Technology,2011,39(2):207-211. |
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| Authors: | Xu Qiongfang and Gao Qingjiu |
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| Institution: | 1 School of Atmospheric Sciences,Nanjing University of Information Science ＆ Technology,Nanjing 210044;2 Qianjiang Meteorological Bureau,Hubei Province,Qianjiang 433100) |
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| Abstract: | Based on the principles of earth rotation and revolution,the effects of the obliquity of the ecliptic plane,solar declination,longitude,and solar elevation angle on the formation of the sunlight line on a dark tube sunshine recorder are analyzed.The principles of sunlight-line location displacement with seasonal variation are described,and the regularities of sunlight-line formation at spring equinox,autumnal equinox,winter solstice and summer solstice are discussed.Under the condition of the fixed earth motion trajectory,the day-to-day sunshine path line can be obtained.With the theoretical basis,the software for sunlight line formation are designed and introduced. |
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| Keywords: | sunlight line earth rotation solar declination software design |
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