OASIS Emergency Management TC

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RE: [emergency] Re: Circle and Polygon

  • 1.  RE: [emergency] Re: Circle and Polygon

    Posted 06-16-2005 03:28
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    Subject: RE: [emergency] Re: Circle and Polygon


    I didn't mean to imply that NATO C2 would be using CAP. I just meant
    that the military - having probably the most experience passing
    coordinates around - has learned that using one CRS works the best for
    passing coordinates. Although developed by the military - it's heavily
    used outside the military. The International Civil Aviation Organization
    (ICAO) has settled on WGS 84 for air navigation systems see
    www.WGS84.com and it's the CRS used by GPS.
    http://everything2.com/index.pl?node=WGS%2084
    
    I have seen it happen many times where people "forgot" or didn't realize
    their information was in a different reference system. I was just
    looking at this as a communication issue. In an emergency situation one
    may not have the time to realize there is a miscommunication and go back
    and fix it.
    
    I agree we need to get the opinions of users - we should also include
    some geodesist. I certainly don't know all the uses for CAP. It may very
    well be used for high precision positioning where a local system may
    work the best - we'll have to see what the users want.
    
    Dave
     
    
    David M. Danko
    GIS Standards
    Environmental Systems Research Institute, Inc.
    8620 Westwood Center Drive
    Vienna, VA 22182-2214
    USA
    E-mail: ddanko@esri.com
    Tel: 703-506-9515 x 8011
    Mobile: 703-989-1863
    Fax: 703-506 9514