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 | | Terrain modeling, the study of ground-surface relief and pattern by numerical methods, has become integral to hydrology, tectonics, oceanography, climatology, and geohazard assessment. |
 | | Many examples of terrain display are posted on the Internet; for this article two will suffice: the new high-resolution digital elevation map of Australia at http://www.agso.gov.au/geophysics/date050397.html, and Kevin Woolley's software for three-dimensional terrain rendering, Landscape Explorer, at http://www.woolleysoft.co.uk/index.html. |
 | | Terrain data are subject to several types of error, vary widely in accuracy, and must not be applied blindly. |
| www.agu.org /eos_elec/97260e.html (1755 words) |
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