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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News - Content on this page is dynamic.

This page reflects items of current interest.

 1. Items of possible interest include:

     a. HTC - presentation on November 1, 2021 went well.  click here.   
     b. NM GAC - presented November 9, 2021 - see copy of Agenda and  presentation.   
     c. ASCE/UESI - Survey Summit planned for April 2022 was postponed. Paper prepared by EFB and not presented is posted at  click here. 
     d. Digital Twins is currently a "hot topic." See  GSDM and Digital Twins 
     e. SaGES virtual conference is in August 2022. Presentation by EFB looks at  Digital Twins and the Elephant in the Room.  
     f. Geo-week 2023 will be in Denver, February 13-15, 2023  click here.    
     g. NGS webinars on NSRS Modernization  click here. 
     h. Memo sent to UESI Geomatics Division EXCOM and Education Committee  click here. 
     i. Dicussion of article in ASCE Journal of Surveying Engineering which challenges local accuracy as computed using the GSDM  click here. 
     j.Link to comments and discussion of True 3-D and Pseudo 3-D  click here. 
     k. Proposal to NIST for standardization  Memo  Actual  proposal  and justification  Why GSDM? 
     l. Irreverant view - disruptive innovation can be  beneficial! 
     m. Tru 3-D is compatible with CORS, HD Maps, and AI. See  Carlsbad CORS.  

 2. The Global COGO, Inc. web page is being redesigned and rebuilt. 
     Currently experimenting with background colors...comments?

 3. Miscellaneous items can be found posted at  click here 

 4. More stuff here


This web page first posted October 31, 2021, and last updated 05/14/2023.

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