Global COGO, Inc.
3-D Coordinate Geometry & Error Propagation
Based Upon the
Global Spatial Data Model (GSDM)
(Website established October 1997 - last modified March 1, 2018)
Email to Global COGO, Inc.
Implementation of the GSDM will be on-going! This category will evolve into a new web site.
Second Edition of 3-D global spatial data model (GSDM).
Development of 2nd Edition and history of the global spatial data model (GSDM)
Future of Surveying & Mapping (Geomatics)
Articles and papers on the GSDM
Information on the The 3-D Global Spatial Data Model (GSDM) book -
including corrections .
BIG DATA issues and challenges.
What is a possible role for a supercomputer?
Network/Local Accuracy issues.
Software tools for the GSDM:
------- Excel spreadsheet programs for performing individual BK computations. click here.
------- Free software for performing 3-D coordinate geometry and error propagation computations:
------------- DOS-based menu-driven version (limit 500 points).
------------- Windows based version - called WBK (limit 50 point).
Seminars on the 3-D GSDM past and future.
------ Surveying Educator's Award presented by Ferris State University 2007
------ ASCE 2010 Surveying & Mapping Award. NMSU
------ NMPS Lifetime Achievement Award - March 2013 click here .
------ 2014 EMHS Alumnus-of-the-Year:
------------ Picture of Award.
------------ Biographical Sketch and Summary.
------------ 50th Reunion Flyer.
Links to overheads and other worthwhile sites
Tragic $100 Million Accident Submarine crash. Reliable maps are as important as they were 300 years ago.
Corrections to BURKORD and in various publications.
Thoughts on licensing or "What is
a BURKORD® data base?"
Information about Global COGO, Inc. and link to EFB resume.
13448 previous hits. Web page moved to this server
July 2, 2006.
Hits since move to this server.
Copyright © 1997-2018 by
Global COGO, Inc
BURKORD® is a trademark of Global COGO, Inc.