Geography Reference
In-Depth Information
4.4.
Land Utilisation Survey of Great Britain National Summary Sheet (South):
color separation for the green (pasture) layer. The survey team in London collated the
information from the field survey sheets to create a set of maps at a scale of one inch to
one mile (1:63,360). They then further condensed the information to create two national
summary sheets at a scale of ten miles to one inch (1:625,000). The published maps are
difficult to process due to the mix of colors and overprinted names and topographical
features. Color separations such as this were created as a stage in the printing process
and contain just one of the color layers, making image processing much simpler. Most
separations were destroyed, but about 10 percent of the separations were preserved by a
member of the Survey's staff and passed to the London School of Economics Archives
by a relative. Reproduced by kind permission of Audrey N. Clark and Giles Clark.
by the Land Use UK project using the same methods as the LUSGB but
at a very similar date to the Land Cover data.
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If one conclusion is the need for HGIS to explore the potential of
raster-based GIS techniques, another is the need to balance contract
research with our own agenda. Our work on long-run land-use change,
