全球不同纬度的太阳周日视运动规律解析  

Unraveling the Sun's Diurnal Apparent Movement at Different Latitudes on the Earth

作　　者：晏路明[1] 

机构地区：[1]福建师范大学地理科学学院,福建福州350117

出　　处：《福建师范大学学报（自然科学版）》2014年第5期117-124,共8页Journal of Fujian Normal University：Natural Science Edition

基　　金：国家社会科学基金资助项目(03BTJ004);福建省自然科学基金资助项目(2011J01265)

摘　　要：为系统地探寻全球不同纬度的太阳周日视运动规律,首先从北半球中、高纬度地区的北屋夏季能否晒进太阳光这一困惑入手,基于北半球从地球晨昏圈和天球这两个视角来考察太阳在一年中的周日运动;进而引入球面三角基础知识对不同纬度的日出方位偏角和正午太阳高度进行量化,由此解析太阳在全球各地全年的周日视运动,获得有关太阳周日视运动规律的3个方面的9点结论.Trying to answer the puzzling question of whether the north side of a house in mid or high latitude area of northern hemisphere could receive sunlight during summer, the study observes the sun＇s daily movement in a year on the northern hemisphere from the perspectives of the earth＇s solar terminator circle and celestial sphere. It goes further to explain the sun＇s diurnal apparent movement around the globe at all seasons through the basic spherical triangle to quantify both the declination of sunrise azimuth and the solar noontime altitude at different latitudes. In three aspects, the study is concluded with nine observations of the regularity of the solar diurnal apparent movement.

关 键 词：晨昏圈 天球 太阳周日视运动轨迹 日出方位偏角 正午太阳高度 

分 类 号：P183[天文地球—天文学] C42[社会学]