Global COGO, Inc.

3-D Coordinate Geometry & Error Propagation

Based Upon the
Global Spatial Data Model (GSDM)

(Website established October 1997 - last modified July 1, 2017)
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 and history of the 3-D 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.
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 picture To read the NMSU Press Release click here.
------ 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. Analogy
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 resume - Earl F. Burkholder

Web site moved to July 2, 2006.
Hits since this web site established.
Monthly record of all hits.

Copyright © 1997-2017 by Global COGO, Inc
BURKORD® is a trademark of Global COGO, Inc.