Flow accumulation grid generated from 10 meter DEM, Andrews Experimental Forest, 1998

Flow accumulation grid generated from 10 meter DEM, Andrews Experimental Forest. This grid is useful for determining the area of land that drains to a point. The user selects a point on the grid, and the value of that point represents the area (in 100 square meters) that drain to the point. This grid can also be used for generating watershed boundaries and stream networks.

由10米分辨率数字高程模型（Digital Elevation Model, DEM）生成的水流累积栅格，数据集取自安德鲁兹实验森林（Andrews Experimental Forest）。该栅格可用于测算汇至任意指定点位的上游集水面积：用户可在栅格上选取目标点位，该点位的栅格值即代表汇至该点的集水总面积，单位为100平方米。此外，该栅格还可用于生成流域边界与河网水系。