ETPO2v2 global elevation data

Brief description

ETOPO2v2 is a global elevation data gridded at a 2 arc-minute of latitude-longitude. ETOPO2v2 is available in both a cell-centered version, named ETOPO2v2c (pixel registered, where the cell boundaries are lines of even minutes of latitude and longitude, centered on intersections of lines of odd minutes of latitude and longitude) and a grid-centered version ETOPO2v2g (with cell boundaries defined by lines of odd minutes of latitude and longitude, meaning that cells were centered on the integer multiples of 2 minutes [even minutes] of latitude and longitude). The cell-centered grid is the authoritative version. The grid-centered version was derived from the cell-centered grid and the conversion produces slightly flattened relief.