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| Subject: | RE: GISList: 80% of data having spatial reference? |
| Date: |
12/07/2001 10:34:42 AM |
| From: |
Gillespie,Ian [Burlington\ |
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OK it was me, I first stated the 80% amount......and now I'm very sorry. :o)
----------------------------------------------------------------
Ian Gillespie, Geomatics Unit Coordinator
Meteorological Service of Canada
IT Division - Ontario Region
Environment Canada
867 Lakeshore Road
Burlington, Ontario, L7R 4A6
Phone: 905-336-4527
Fax: 905-336-4906
email: ian.gillespie@ec.gc.ca
-----Original Message-----
From: Christopher Quinn [mailto:lordofhades@lycos.com\
Sent: Friday, November 30, 2001 9:15 AM
To: gislist@geocomm.com
Subject: Re: GISList: 80% of data having spatial reference?
On Thu, 29 Nov 2001 23:07:35
>Steven Ramage wrote:
>> I believe it is generally attributed to the "Handling of Geographic
>> Information" - Report of the Committee of Enquiry chaired by Lord Chorley
in
>> 1987.
There doesnt seem to be a reference to the specific quote in Chorleys report
either. The nearest I could find was on p54, section 3.3.1 "ICL estimate
that typically 60% of data in local authorities could be used for more than
one function."
Which is not the same thing at all.
But again, it doesnt give a reference as to how ICL came up with this
figure, neither is it mentioned in the written evidence submitted by ICL.
>"70 to 80 percent of the activities and information your agency is
>concerned with are related to location"
>Somers, Rebecca. 1987. "Geographic Information Systems in Local
>Government: A Commentary." "Photogrammetric Engineering and Remote
>Sensing." 53(10): p. 1379.
Hmmm must go look that up. I`ll have to check out the old GIS books in the
UCD library as well. Its quite possable that they still have some editions
stored away from the 1980s there.
>Can anyone here peel back the layers of history and legend and find
>a documented reference that pins this concept/revelation to an
>earlier date?
I havent come across any earlier references myself. However some
possabilites are
"Remote Sensing and Digital Mapping" HMSO, 1984
"General Information Systems for Planning", DOE 1972.
HMSO = Her Majestys Stationary Office
DOE = Department of Environment
both of which are referenced in Chorleys report. However given the age of
the documents, I seriously doubt that there will be a version online (I
couldnt find Chorley in the HMSO homepage). I dont have time to check for
hardcopies this week, I`ll get round to it next week at some stage. But in
the meantime, if anyone else has read these reports, and know for sure if
they do or do not contain a reference, that would be a great help :)
regards
Chris Quinn
University College Dublin
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