[Taxacom] Impossible geocodes

Fred Schueler bckcdb at istar.ca
Sat Jan 24 21:58:00 CST 2015

Quoting "Fautin, Daphne G." <fautin at ku.edu>:

> All users should be aware, however, of the huge errors that can be  
> introduced by conversion.  Tony Rees made a presentation to OBIS  
> once about this (since marine data were nearly always DMS -- and now  
> DD -- because the ocean lacks landmarks; only nearshore records may  
> refer to landmarks), and showed that a conversion moved his home  
> from the nice bayside locality it occupies outside Hobart to the  
> hills well inland.  I'd bet he has it archived somewhere that you  
> could find to caution people.

* this may be because of unrecorded or uncompensated-for map datums.  
Around here the old NAD27 map datum gives a position 200m from the  
position given by the modern NAD83 or WGS84 datums.

           Frederick W. Schueler & Aleta Karstad
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           RR#2 Bishops Mills, Ontario, Canada K0G 1T0
    on the Smiths Falls Limestone Plain 44* 52'N 75* 42'W
     (613)258-3107 <bckcdb at istar.ca> http://pinicola.ca/
"[The] two fundamental steps of scientific thought - the conjecture  
and refutation of Popper - have little place in the usual conception  
of intelligence. If something is to be dismissed as inadequate, it is  
surely not Darwin [, whose] works manifest the activity of a mind  
seeking for wisdom, a value which conventional philosophy has largely  
abandoned." Ghiselen, 1969. Triumph of the Darwinian Method, p 237.

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