new geometric datum plans l.
Download
Skip this Video
Download Presentation
New Geometric Datum: plans

Loading in 2 Seconds...

play fullscreen
1 / 11

New Geometric Datum: plans - PowerPoint PPT Presentation


  • 88 Views
  • Uploaded on

New Geometric Datum: plans. Modernizing the U.S. National Spatial Reference System. FGCS San Diego, California Monday 11 July 2011. Joe.Evjen@noaa.gov. Source: Zurich-American Insurance Group. Coordination begins with good coordinates . Geodetic control is the foundation

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'New Geometric Datum: plans' - hila


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
new geometric datum plans

New Geometric Datum: plans

Modernizing the U.S.National Spatial Reference System

FGCS

San Diego, California

Monday 11 July 2011

Joe.Evjen@noaa.gov

slide2

Source: Zurich-American Insurance Group

Coordination begins with good coordinates

  • Geodetic control is the foundation
  • for all geospatial products.

Geodetic Control is the critical “basemap” layer for GIS applications

crustal velocities passive networks are aging instability accessibility loss

How accurate is the NSRS?

Crustal velocitiesPassive networks are aging(instability, accessibility, loss)

slide4

NAD83vsGNSS

Earth’s

Surface

world avg.

ITRF

Origin

stable N.A.

2.2 meters

NAD 83

( Identically shaped ellipsoids )

Origin

1 6 meter shift on a 1 25 000 map
1.6 meter shift on a 1:25,000 map

modern users abuse map scale

NAD83 and GNSS lat/lon lattices are 0.006 cm apart

Accurate and seamless!!

Optimized for my project!!

the path to a new geospatial datum
the path to a new geospatial datum
  • SCIENCE:
    • participate in international geodesy
    • maintain core geodetic infrastructure
    • define stable North America, plate motions, local issues
  • OUTREACH:
    • illustrate limitations of current system
    • geospatial summits with FGCS, ACSM, ION, etc.
    • assist key stakeholders to identify use cases, issues
  • TOOLS:
    • dependable models
    • GEOID, NADCON, H(+V) TDP exploitable via vendor toolkits
    • services for RTN operators
the path to a new geospatial datum10
the path to a new geospatial datum
  • DEFINE:
    • Fixed to plate at what epoch? Update frequency/tolerance?
    • Coordination with international community, Canada, Mexico, etc.
    • FGDC vote to adopt, Federal Register Notice, formal report, & FAQ
  • IMPLEMENT:
    • Products (datasheets, OPUS, GEOIDs, maps, charts, projects)
    • Toolkit (NADCON, TDP) and best practices
    • Legacy plan: how much support for USSD, NAD27, NAD83
  • TIME FRAME:
    • Follow in synch with geopotential datum effort
    • Note, NAD27 is still in use.
geospatial summit 2012
Geospatial summit 2012
  • What do you want to talk about?
  • geodesy.noaa.gov/2010Summit/
      • Presentations
      • Handouts
      • Proceedings