G'day Frank,
Just in case you haven't already received an answer yet:
"Frank Bilki"
<[EMAIL PROTECTED] To: <[EMAIL PROTECTED]>
om.au> cc:
Sent by: Subject: FW: Indonesian Map Datum's
ermapper-l-owner@er
mapper.com
07/08/01 16:51
Please respond to
ermapper-l
Folks,
I should have studied the marginalia of the map a little more closely. GRS
67 is in fact a SPHEROID and not a datum, therefore I'm worse off because I
don't know what datum was used...
Does anyone know what datum is implied on these maps (1:50,000 scale of
Sumatra, jointly mapped in the mid-1970's by the Indonesian and Australian
governments) and therefore what the Bursa Wolfe parameters to WGS 84 are?
My understanding is that GRS (Geodetic Reference Spheroid?) 67 is/was the
immediate ancestor of WGS84, and as such you should be able to treat it as if it
was WGS84 - no transformation required as long as you can tolerate imprecision
of the order of metres at most.
Dr Mark Duffett
Geophysicist
Northern Territory Geological Survey
PO Box 2655 Alice Springs 0871
Telephone (08) 8951 5393
Fax (08) 8952 7762
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- FW: Indonesian Map Datum's Frank Bilki
- Mark . Duffett
