Vector > geoprocessing tools > intersect 1.7.3
I built a buffer around an airport of 10 miles. The buffer intersects 4
counties within the 10 mile radius buffer.
The resulting layer is a join of the airport attributes with each of the
county attributes resulting in 4 records. The geographic result is the a circle
of radius 10 miles identical to the overlaid buffer.
How would I get an estimate of say, the county populations that are within the
buffer, that is, an aerial overlay (assumes uniform distribution of population
with the county)?
If I knew the fraction of the area of each county within the circular buffer I could calculate it.
Also it would be useful to be able to have a sum (estimate) of the total population within the buffer.
Ideas?
Thanks -
Richard
Anchorage, AK
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