ETOPO1 Global Relief Model : Report

ETOPO1 is a 1 arc-minute global relief model provides a complete topographic and bathymetric coverage between -90° and +90°. Integrating land topography and ocean bathymetry. Built from global and regional data sets. It s available in "Ice Surface" (top of Antarctica and Greenland ice sheets) and "Bedrock" (base of the icesheets). Data can be downloaded directly from the source at the NOAA website. The data is available in either grid-registered or cell-registered files in netCDF and geotiff formats. A grid extraction tool is available to download a user selected area. Several versions of the data have been styled for public viewing by CPAWS-NL as part of a project to compile useful data within the Newfoundland and Labrador region into a data hub. The ETOPO1 Bedrock data was downloaded in grid registered geotiff format from the NOAA website. Newfoundland and Labrador are located between 46°N latitude and 60°N degrees latitude, the resolution of the data is latitude dependent and an ArcSecond converter may be a useful pre-analysis tool, https://www.opendem.info/arc2meters.html.