It replaces IOGP Report 373-17, which had a similar title as this document, but has now been withdrawn (it remains available as an historic document).
For exploration and production (E&P) activities, consistency in coordinates is as important as absolute accuracy. The Guidance Note describes two issues that impact coordinate consistency on the US GoM OCS.
- Firstly, the issue of NADCON which traditionally has been used vs. the recently published NADCON5 transformation method that yields different results.
- Secondly, the issue of dealing with operational GNSS measurements made in a dynamic CRS (WGS 84) vs. reporting in a static CRS such as NAD27 and NAD83.
The Report is aimed at survey professionals working in oil and gas in this area, both in operating companies and contractors/service providers.
Copies of the Guidance Note 26 can be downloaded free from the IOGP Bookstore.