请问cell-centered registration和grid-centered registration区别是什么啊？

rosedream22

Forms:1)ETOPO2v2c is in a cell-centered registration (pixel registered); the cell   boundaries are lines of even minutes of latitude and longitude, and they are   centered on intersections of lines of odd minutes of latitude and longitude. 2)ETOPO2v2g is in a grid-centered registration (pixel registered); the cell  boundaries are lines of odd minutes of latitude and longitude, and they are  centered on intersections of lines of even minutes of latitude and longitude.  This is the same as the original ETOPO2, which was grid-registered, meaning  that cells were centered on the integer multiples of 2 minutes (even minutes)  of latitude and longitude and the cell boundaries were consequently defined by  lines of odd minutes of latitude and longitude. The first row of 10,801 (360 x  30) cells in ETOPO2 redundantly repeated the same data value, centered on the  north pole. A data row, centered on the South Pole, was not included in the  original ETOPO2, but exists in ETOPO2v2g.

jstzysq

每个像素网格的边界线或中心所对应的经纬度。cell-centered的中心对应奇数经纬度（度分秒里的分为奇数）（比如120度11分），两边的边界线对应偶数经纬度（比如120度10分和120度12分）；grid-centered正好相反，中心为偶数，两边为奇数。个人觉得是这样

rosedream22

jstzysq 发表于 2017-12-23 11:03
每个像素网格的边界线或中心所对应的经纬度。cell-centered的中心对应奇数经纬度（度分秒里的分为奇数）（ ...

好的，谢谢！