Aspect (3" resolution) 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 product was derived from the Smoothed Digital Elevation Model (DEM-S; ANZCW0703014016), which was derived from the 1 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. This 3” resolution version of the aspect product has been masked by the 3” water and ocean mask datasets.