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Ngvd 29 - PowerPoint PPT Presentation

Tidal and Geodetic Vertical Datums

Tidal and Geodetic Vertical Datums

Tidal and Geodetic Vertical Datums. Marti.Ikehara@noaa.gov State Geodetic Advisor, NGS National Ocean Service, NOAA Sacramento, CA October, 2005 Workshop. Vertical Control Datums. A set of fundamental elevations to which other elevations are referred. Vertical Datum Types

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932 views • 62 slides
GPS Derived Heights: A Height Modernization Primer May 8 and May 10, 2007 National Geodetic Survey

GPS Derived Heights: A Height Modernization Primer May 8 and May 10, 2007 National Geodetic Survey

GPS Derived Heights: A Height Modernization Primer May 8 and May 10, 2007 National Geodetic Survey. Renee Shields National Geodetic Survey National Oceanic and Atmospheric Administration. How to achieve accurate GPS heights. What types of heights are involved? Orthometric heights

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517 views • 50 slides
PRESENTATION TO THE CENTRAL VALLEY CHAPTER OF THE CALIFORNIA LAND SURVEYORS ASSOCIATION

PRESENTATION TO THE CENTRAL VALLEY CHAPTER OF THE CALIFORNIA LAND SURVEYORS ASSOCIATION

PRESENTATION TO THE CENTRAL VALLEY CHAPTER OF THE CALIFORNIA LAND SURVEYORS ASSOCIATION ON CURRENT ISSUES RELATED TO FLOOD CONTROL MATTERS IN THE CENTRAL VALLEY 2/22/12. FEMA MAP MODERNIZATION ( WHY MODERNIZE? 2005 )

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159 views • 15 slides
Vertical Control

Vertical Control

Vertical Control. Vertical Datums. A vertical datum is used for measuring the elevations of points on the earth's surface. Geodetic Datums (NGVD29, NAVD88) Hydrologic Datums (LWRP, IGLD) Tidal Datums (MSL or LMSL, MLLW, MHW) Local (Cario, Memphis Datum) Ellipsoid (Space-based) Surfaces.

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358 views • 11 slides
Vertical Control

Vertical Control

Vertical Control. Vertical Datums. A vertical datum is used for measuring the elevations of points on the earth's surface. Geodetic Datums (NGVD29, NAVD88) Hydrologic Datums (LWRP, IGLD) Tidal Datums (MSL or LMSL, MLLW, MHW) Local (Cario, Memphis Datum) Ellipsoid (Space-based) Surfaces.

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260 views • 11 slides

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