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NGS and the NSRS, Geodetic Control

History and context: A look at the National Geodetic Survey and the National Spatial Reference System, and an overview of geodetic control.

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    The Modernized National Spatial Reference System

    Part 1: History and Context

    • NGS and the NSRS, Geodetic Control
    • Datums and Reference Frames
    • Decision to Modernize

    Part 2: The Modernized NSRS

    • Guiding Principles of Modernization
    • Geometric Reference Frames
    • Geometric Reference Frames, Part 2
    • Geopotential Datums
    • Coordinates and Database
    • Accessing the NSRS and the NOAA CORS Network
    • 'Bluebooking' with OPUS and New Surveying Specifications
    • Transformations, Conversions, and State Plane Coordinates
    • Known Concerns, Modernization Delay, and Summary
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