3-D COGO and
Error Propagation
Based on the GSDM

 Global COGO, Inc.
 P.O.Box 3162
 Las Cruces, NM 88003
 

 Earl F. Burkholder, PS, PE, F.ASCE
 Email: eburk@globalcogo.com 
 URL:   www.globalcogo.com
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GSDM Books, Papers, Articles, and Projects (page under construction): 

I.     Background - start here. 
       -----  Definition of the  GSDM. 
       -----  Adjusting our perspective of a 3-D  world. 
       -----  Diagram of 3-D coordinate system  relationships. 
       -----  Graphical visualization of coordinate  systems. 
       -----  Summary of NSRS Modernization challenge  AGU poster.
       -----  The Role of a Model is CRITICAL!  click here. 


II.    Books: The Global Spatial Data Model (GSDM) published by CRC Press 2008.
        -----  "The 3-D Global Spatial Data Model: Foundation of the Spatial Data Infrastructure"  Amazon.  
        -----  2nd Ed. 2018 "The 3-D Global Spatial Data Model: Principles and Applications"  CRC Press.  
                (Although the author disagreed, the publisher required a "better" sub-title for the 2nd Ed.)
       ------  2nd Edition dedicated to Dr. Kurt W. Bauer, Emeritus Executive Director  SEWRPC  

III.  Papers filed with the U.S. Copyright Office. 
       -----  Definition and Description of the 3-D Global Spatial Data Model  1997.  
       -----  Fundamentals of Spatial Data Accuracy and the Global Spatial Data Model (GSDM)  2004. 
       -----  Standard Deviation and Network/Local Accuracy of Geospatial Data  2013.  
       -----  The GSDM is adequate for defining the 3-D location of spatial data worldwide  2020. 
       -----  Horizontal Distance Options Supported by the GSDM  2018. 
       -----  Reconciling Gravity and the Geometry of 3-D Digital Geospatial Data  2021. 
       -----  By Comparison - the GSDM is Simple  2021. 
       -----  Conceptual Development of True 3-D Vis-a-vis Pseudo 3-D  2023. 
   
IV.   Items published by: 
       -----  American Society of Civil Engineers  link.  
       -----  American Congress on Surveying & Mapping (and NSPS)  not yet.  
       -----  American Society of Photogrammetry & Remote Sensing (& ACSM)  not yet. 
       -----  Geospatial Solutions & Civil Engineering Surveyor  not yet. 
       -----  EOS, POB, ABET, FIG, ION, GIM, and NMSU  not yet.  
       -----  Columns printed in the NMPS  Benchmarks.  

V.    Participating in Surveying Educators' Conferences (now called SaGES) click here. 

VI.   Description of 3-D  projects  described in 2nd Ed. of GSDM book.

VII.  Other articles   

VIII. More - link to be added.


This web page first posted October 31, 2021 and last updated 01/14/2024.

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