EPSG Dataset :: v12.042test

Height Depth Reversal

Coordinate Operation Method Details [VALID]

Name:

Height Depth Reversal

Code:

1068

Operation is Reversible:

Yes

Formula:

Note: These formulas have been transcribed from EPSG Guidance Note #7-2. Users are encouraged to use that document rather than the text which follows as reference because limitations in the transcription will be avoided.

If there is a requirement to either (i) change a height in a source CRS to a depth in a target CRS referenced to the same vertical datum, or (ii) change a depth in the a source CRS to a height in a target CRS referenced to the same vertical datum, then the following generic formula can be used:

X2 = –1 * X1

Example:

1. Source CRS = MSL height, in which a height = -300m. Then target CRS = MSL depth, and the depth = (-300 * -1) = 300m

2. Source CRS = NAVD88 depth (ftUS), in which a depth = 500 ftUS. Then target CRS = NAVD88 height (ftUS), and the height = (500 * -1) = -500 ftUS

Method
Parameters:

Parameter Name	Parameter Code	Sign reversal	Parameter Description

Meta Data

Remarks:

This is a parameter-less conversion.

Information Source:

EPSG Guidance Note #7-2.

Data Source:

EPSG

Revision Date:

February 21, 2019

Change ID:

[2014.027] [2019.002]

Wildcard	Example
% or *	Any wildcard characters
? or _	One wildcard character
[ - ]	[ - ] Range e.g. N[a-c] will return all geodetic objects that contains a string starting with the letter 'N' or 'n' followed by any of the letters contained within the range specified within the square bracket, e.g. letters a, b and c.
\|	Or e.g. E[a\|e]M will return all geodetic objects that contains a string starting with the letter E(e), ends with the letter M(m) and also contain either the letter a or letter e.