地理研究

地理研究 ›› 1989, Vol. 8 ›› Issue (1): 66-71.doi: 10.11821/yj1989010009

• 研究报告 • 上一篇    下一篇

复杂遮蔽区域日照条件的研究

林少君   

  1. 南京农业大学
  • 收稿日期:1988-02-26 修回日期:1988-09-23 出版日期:1989-03-15 发布日期:1989-03-15

A STUDY ON THE DAY LENGTH OF A COMPLICATED SHADING REGION

Lin Shaojun   

  1. Department of Plant Protection, Nanjing Agricultural University
  • Received:1988-02-26 Revised:1988-09-23 Online:1989-03-15 Published:1989-03-15

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被引次数

3

摘要： 本文提出,利用遮蔽区域中二个测点的同步遮蔽角和方位角资料,就可计算出所测区域中任意一点的遮蔽角和方位角序列,并清除了经纬仪高度对遮蔽角的影响。配合太阳视运动轨迹,用图解法或数值计算法即可求出相应点的实际日出、日落时间和可照时数。

关键词: 日照条件, 遮蔽区域, 复杂地型

Abstract: A measuring method was proposed to calculate the sequences of shielding angle and azimuth of any point in the shading region, and to eliminate the measuring error of shielding angle caused by the theodolite height, by using the synchronous data of shielding angle and azimuth of two points in the area. Therefore,it is possible to obtain the sunrise time and the day length of any point in the shading region graphically or numerically, with the apparent motion locus of the sun and the above calculation of the corresponding point.

Key words: Day length, Shading region, Complicated Geography