Londonderry Drysdale elevation grid geodetic

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This Londonderry Drysdale elevation grid geodetic is elevation data for the Drysdale, Londonderry, WA, 1994. This survey was acquired under the project No. 627 for the geological survey of WA. The grid has a cell size of 0.00083 degrees (approximately 91m). This grid contains the ground elevation relative to the geoid for the Drysdale, Londonderry, WA, 1994. It represents the vertical distance from a location on the Earth's surface to the geoid. The data are given in units of meters. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.