Physics
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992georl..19.2325w&link_type=abstract
Geophysical Research Letters, Volume 19, Issue 23, p. 2325-2328
Physics
6
Geodesy And Gravity: General Or Miscellaneous, Planetology: Solid Surface Planets: General Or Miscellaneous, Information Related To Geographic Region: General Or Miscellaneous
Scientific paper
There has been no reasonably comprehensive survey of what digital, elevation models of the Earth's land surface exist in the public-domain. We have performed a survey of these data, and we report on the coverage and cost of the data we have established. To qualify for inclusion in our coverage, we required the data to be available to the general public, obtainable from a specific, identified institution, and to have a determined cost. We have established that at 100 m resolution coverge exists of most of the developed world. In the United States and Australia, the data are available at cost, at around 3000 km2 #-1. In the remaining countries, the data are available from mapping agencies with varying commercial pricing strategies. The total cost of the data we have identified is # 1,688,312. For much of the world we are unable to confirm the existence of such data, and our experience is that in these regions it will prove difficult to obtain digital, elevation data, if, indeed, it exists at all.
Wingham Duncan
Wolf Michael
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