repetitive navigational links
L-Soft  -  Home of  the  LISTSERV  mailing list  manager LISTSERV(R) 14.5
Skip repetitive navigational links
Previous (more recent) messageNext (less recent) messagePrevious (more recent) in topicNext (less recent) in topicPrevious (more recent) by same authorNext (less recent) by same authorPrevious page (July 2006)Back to main SUBCOOR pageJoin or leave SUBCOORReplyPost a new messageSearchProportional fontNon-proportional fontLog in
Date:         Thu, 6 Jul 2006 09:38:01 -0400
Reply-To:     Subject Coordinates Discussion List <[log in to unmask]>
Sender:       Subject Coordinates Discussion List <[log in to unmask]>
From:         "Houghton,Andrew" <[log in to unmask]>
Subject:      Re: The proposal passed MARBI!
Content-Type: text/plain; charset="iso-8859-1"

> -----Original Message----- > From: Subject Coordinates Discussion List > [mailto:[log in to unmask]] On Behalf Of Joe Aufmuth > Sent: 03 July, 2006 09:43 > To: [log in to unmask] > Subject: Re: [SUBCOOR] The proposal passed MARBI! > > If we're going to use GPS for authority records, what level > of accuracy will be acceptable? Will there be a standardized > method of collection? Typical handheld "walmart" receivers > greatly vary in their measurements. Elevations in particular > can be quite poor. So, who will be generating the authority > records and the subsequent coordinates and elevations? > Surveyors? GNIS? NGA? Catalogers? Who will be testing the > accuracy of the coordinates used? The question is how important *is* accuracy? That handheld Wal-Mart receiver might be +/- 30 meters and a surveyor's unit in the centimeters range. Does that really make a difference when a patron wants to know the general vicinity someplace is? Now, these coordinates could be used for other purposes, where accuracy might be an issue. However, lets say there is a local place of historical significance to your community. It doesn't appear in any GNIS database. So are you going to pay a surveyor several hundred dollars to give you the coordinates or are you just going to send someone to the place with a handheld unit to take measurements? Certainly the answer to that question depends on a number of factors. The format should provide information on the collection method. When a more accurate method is available, then certainly it would be best to record that information or update the originally collected information. The point being, the format shouldn't dictate one collection method over another, but provide a place to record the type of collection method in addition to the actual coordinates. [in a separate subfield from the coordinates, please, which will make machine processing and indexing easier] Andy.

Back to: Top of message | Previous page | Main SUBCOOR page

LISTSERV.LOC.GOV CataList email list search Powered by LISTSERV email list manager