EPSG:7990 DEPRECATED

NAVD88 height (ftUS) to NAVD88 depth (ftUS)

Attributes

Data source: EPSG

Information source: IOGP

Revision date: 2017-10-11

Scope: Change of axis positive direction to facilitate transformation of heights or depths through concatenated operations.

Remarks: Change of axis positive direction from up to down.

Method: Height Depth Reversal

Area of use: United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.

Description: (0,)

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SimpleMap
United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.

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Definition: OGC Well Known Text

PROJECTION["Height_Depth_Reversal"]

Definition: OGC Well Known Text 2 (2019)

CONVERSION["NAVD88 height (ftUS) to NAVD88 depth (ftUS)",
    METHOD["Height Depth Reversal",
        ID["EPSG",1068]],
    ID["EPSG",7990]]

Definition: ESRI Well Known Text

PROJECTION["Height_Depth_Reversal"]

Definition: PROJ.4

+proj=axisswap +order=1,2,-3

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:7990","+proj=axisswap +order=1,2,-3");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Conversion",
    "name": "NAVD88 height (ftUS) to NAVD88 depth (ftUS)",
    "method": {
        "name": "Height Depth Reversal",
        "id": {
            "authority": "EPSG",
            "code": 1068
        }
    },
    "id": {
        "authority": "EPSG",
        "code": 7990
    }
}

Definition: GeoServer

7990=PROJECTION["Height_Depth_Reversal"]

Definition: MapServer - MAPfile

PROJECTION
	"proj=axisswap"
	"order=1,2,-3"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=axisswap +order=1,2,-3">
	<Layer srs="+proj=axisswap +order=1,2,-3">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 7990, 'EPSG', 7990, '+proj=axisswap +order=1,2,-3', 'PROJECTION["Height_Depth_Reversal"]');