Aspect derived from 1" SRTM DEM-S

Aspect measures the direction in which a land surface slope faces. The direction is expressed in degrees from north. The aspect products were derived from the Smoothed Digital Elevation Model (DEM-S; ANZCW0703014016), which was derived from the 1 arc-second resolution SRTM data acquired by NASA in February 2000. The calculation of aspect from DEM-S accounted for the varying spacing between grid points in the geographic projection. The aspect data are available at 1 arc-second and 3 arc-second resolution The 3” resolution version of the aspect product has been masked by the 3” water and ocean mask datasets.