The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners.
As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.
i
On the Use of Linear Units as a Companion to Horizontal Datum Transformations Performed on Curvilinear Coordinates (or "What does NGS mean when they provide NADCON transformations and error estimates for latitude and longitude in meters?")
-
2020
[PDF-842.80 KB]
Details:
-
Personal Author:
-
Corporate Authors:
-
NOAA Program & Office:
-
Description:A datum transformation is some formula or tool that takes as input some coordinate(s) in a starting geodetic datum and attempts (often imperfectly) to give as output some new coordinate(s) in a different geodetic datum. The history of datum transformations is long and distinguished, but will not be covered in this paper. The authors also note that this paper covers theory applicable only to horizontal transformations. Although NGS began in the 1980s writing computer code to do complex datum transformations (such as LEFTI; Vincenty 1980), it wasn’t until the release of NADCON 1.0 (Dewhurst 1990) that an NGS transformation tool was fast, accurate, and sufficiently simple to see widespread use across the nation.
-
Keywords:
-
Series:
-
DOI:
-
Format:
-
Document Type:
-
Place as Subject:
-
License:
-
Rights Information:CC0 Public Domain
-
Compliance:Submitted
-
Main Document Checksum:
-
Download URL:
-
File Type:
