'Datums' presentation slideshows

New Datums: Replacing NAVD 88 and NAD 83

New Datums: Replacing NAVD 88 and NAD 83. Professional Surveyors Association of Nebraska Winter Seminar Dave Zenk NGS Advisor February 9, 2018 Kearney, NE. Outline. Need to replace NAD 83 and NAVD 88 Customer Concerns Recent Decisions: Naming conventions and white papers

676 views • 67 slides

Projections and Coordinate Systems

Projections and Coordinate Systems. Overview Projections Examples of different projections Coordinate systems Datums. Projections. The earth is a spheroid The best model of the earth is a globe. Drawbacks: not easy to carry

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Where am I?

Where am I?. Lecture 3 CONS 340. Learning Objectives. Explain map scale Define geodesy Compare geographic and projected coordinate systems Define spheroids and datums Datum transformations. Map Scale. Linear (also called graphic) Verbal 20cm = 4.8km Representative fraction

1.06k views • 41 slides

WELCOME

Paper Presented to: ESRI Survey and GIS Summit, August 2006 Sunday, August 6, 2006 San Diego, CA. Joel Cusick National Park Service Alaska Regional Office Joel_cusick@nps.gov. WELCOME. Handouts Available. Are You Really Mapping Submeter?. Revenge of the Shift. Transform:

572 views • 40 slides

Lecture 10: Projections and Coordinate Systems, Continued By Austin Troy

------Using GIS--. Introduction to GIS. Lecture 10: Projections and Coordinate Systems, Continued By Austin Troy. Introduction to GIS. Datums. Necessary for understanding coordinate systems Definition: a three dimensional surface from which latitude, longitude and elevation are calculated

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Many Vertical Datums that are not part of the NGRS have been used throughout the years in Alaska

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Synthesis & Local Perspectives

Synthesis & Local Perspectives. Shoreline and Marine Boundaries Workshop. Measurement-Management-Policy. Tidal Datums. Semidiurnal, Mixed Tides along the California Coast Mean High Water (MHW) is the boundary for littoral ownership around the globe

169 views • 11 slides

2017 Geospatial Summit Guest Presenter Instructions

2017 Geospatial Summit Guest Presenter Instructions.

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2017 Geospatial Summit Guest Presenter Instructions

2017 Geospatial Summit Guest Presenter Instructions.

57 views • 5 slides

2017 Geospatial Summit Guest Presenter Instructions

2017 Geospatial Summit Guest Presenter Instructions.

51 views • 5 slides

Feedback on the New Datums

Feedback on the New Datums. US Army Corps of Engineers Jim Garster. 2015 Geospatial Summit April 13 to 14, 2015. Preparation. Our major products/services which will be affected by the new datums : Existing project maps; designs; studies Project O&M Manuals

166 views • 4 slides