|
FREE PRODUCTS TNTlite TNTatlas TNTsim3D
DOWNLOADS |
ETOPO5World Elevation Geodata
ETOPO5 was generated from a digital data base of land and sea- floor elevations on a 5-minute latitude/longitude grid. The resolution of the gridded data varies from true 5-minute for the ocean floors, the USA., Europe, Japan, and Australia to 1 degree in data-deficient parts of Asia, South America, northern Canada, and Africa. Data sources are as follows: Ocean Areas: US Naval Oceanographic Office; USA., W. Europe, Japan/Korea: US Defense Mapping Agency; Australia: Bureau of Mineral Resources, Australia; New Zealand: Department of Industrial and Scientific Research, New Zealand; balance of world land masses: US Navy Fleet Numerical Oceanographic Center. These various data bases were originally assembled in 1988 into the worldwide 5-minute grid by Margo Edwards, then at Washington University, St. Louis, MO.
etopo5.zip (11 Megabytes)
©MicroImages, Inc. 2008 Published in the United States of America11th Floor - Sharp Tower, 206 South 13th Street, Lincoln NE 68508-2010 USA Business & Sales: (402)477-9554 Support: (402)477-9562 Fax: (402)477-9559 Business info@microimages.com Support support@microimages.com Web webmaster@microimages.com |
