终年冰雪、酷寒无比的地球两极地区,其上空居然太阳能最丰富?图1是人教版普通高中课程标准实验教科书《地理①》(必修)2008年2月第3版第9页“活动”的“图1.8北半球大气上界太阳辐射的分布”。该图显示,到达地球大气上界的太阳辐射随纬度的增加而减少,赤道上超过1.3×10~(10)J/m~2,而90°N上却只有5.5×10~9J/m~2,赤道上 Figure 1 is the PEP ordinary high school curriculum standard textbook “geography” (compulsory) February 2008 the third edition page 9 “activities ”Figure 1.8 Distribution of solar radiation at the upper atmosphere in the northern hemisphere". The figure shows that the solar radiation reaching the upper bound of the Earth’s atmosphere decreases with increasing latitude, with an area of ​​more than 1.3 × 10 ~ (10) J / m ~ 2 on the equator, but only 5.5 × 10 ~ 9 J / m ~ 2, on the equator