ETOPO1: Topography and Bathymetry

ETOPO1: Topography and Bathymetry thumbnail


ETOPO1 is a 1 arc-minute global relief model of Earth's surface that integrates land topography and ocean bathymetry. It was built from numerous global and regional data sets, and is available in "Ice Surface" (top of Antarctic and Greenland ice sheets) and "Bedrock" (base of the ice sheets) versions. The "Ice Surface" version is available for Science On a Sphere®. This dataset is a higher resolution version of ETOPO2, which is a 2 arc-minute global relief model of Earth's surface. An arc-minute is 1/60 of a degree. Scientists use high resolution maps like ETOPO1 to improve accuracy in tsunami forecasting, modeling, and warnings, and also to enhance ocean circulation modeling and Earth visualization. For more information on the creation of the map visit: NOAA NGDC ETOPO1

See the ETOPO2: Earth Topography and Bathymetry dataset here

Notable Features

  • Mount Everest: tallest point on Earth at 29,035 ft
  • Marianas Trench: deepest point on Earth at 36,201 ft
  • Mountain Ranges: Himalayas, Rockies, Andes, Alps
  • Global mid-oceanic ridge system: longest mountain range

Related Datasets