The Modernized National Spatial Reference System (NSRS)

NGS has developed a set of powerpoint slides to explain the background and guiding principles for modernizing the National Spatial Reference System, and the tools and services that NGS is building to implement the new system. These slides are presented below as a series of short videos recorded by Dave Zenk, the Northern Plains Regional Geodetic Advisor.

Part 1: History and Context

NGS and the NSRS, Geodetic Control

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

8
Min

3
MB

Datums and Reference Frames

An overview of horizontal datums and referene frames, vertical datums and historic datums of the U.S.

10
Min

4
MB

Decision to Modernize

Discussion of NGS' decision to modernize the National Spatial Reference System.

7
Min

3
MB

Part 2: The Modernized NSRS

Guiding Principles of Modernization

A look at the guiding principles of the NSRS modernization and publications you can consult for further details and reference.

10
Min

4
MB

Geometric Reference Frames

A look at the guiding principles of the NSRS modernization and publications you can consult for further details and reference.

15
Min

5
MB

Geometric Reference Frames, Part 2

The first part of an in depth look at Geometric Reference Frames.

19
Min

4
MB

Geopotential Datums

The second part of an in depth look at Geometric Reference Frames.

9
Min

3
MB

Coordinates and Database

A discussion of coordinate types and the database.

11
Min

3
MB

Assessing the NSRS and the NOAA CORS Network

A look at NGS' plans for accessing the NSRS and an overview of the NOAA CORS network.

6
Min

2
MB

Bluebooking with OPUS and New Surveying Specifications

Overview of plans for OPUS and NGS' commitment to surveying specifications.

7
Min

2
MB

Transformations, Conversions, and State Plane Coordinates

A discussion of plans for transformations, conversions, and State Plane Coordinates.

11
Min

2
MB

Known Concerns, Modernization Delay, and Summary

A look at known concerns related to NSRS modernization, modernization delay, closing, and ways to keep up to date with modernization news.

8
Min

1
MB