夏季大气热源位置较赤道偏北，而冬季较偏南。
The positions locate in the north of equator in summer , but is opposite in winter .
裂孔的位置在赤道部与锯齿缘之间者最多，占77%。
The site of holes was largely located in between the equator and the ora serrata ( 77 % ) .
位置赤道