EPSG
Mining decree of 1st January 1953.
2013-06-12
Minerals management (including oil and gas exploration and production).
The origin of the grid is at 38.81973gN, 7.83445gE of Paris, near Djebel Kebar, at which the grid reference is 270582.
(0,)
Definition: OGC Well Known Text 2 (2019)
CONVERSION["Tunisia Mining Grid", METHOD["Tunisia Mining Grid", ID["EPSG",9816]], PARAMETER["Latitude of false origin",36.5964, ANGLEUNIT["grad",0.0157079632679489], ID["EPSG",8821]], PARAMETER["Longitude of false origin",7.83445, ANGLEUNIT["grad",0.0157079632679489], ID["EPSG",8822]], PARAMETER["Easting at false origin",270, LENGTHUNIT["kilometre",1000], ID["EPSG",8826]], PARAMETER["Northing at false origin",360, LENGTHUNIT["kilometre",1000], ID["EPSG",8827]], ID["EPSG",19937]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Conversion", "name": "Tunisia Mining Grid", "method": { "name": "Tunisia Mining Grid", "id": { "authority": "EPSG", "code": 9816 } }, "parameters": [ { "name": "Latitude of false origin", "value": 36.5964, "unit": { "type": "AngularUnit", "name": "grad", "conversion_factor": 0.0157079632679489 }, "id": { "authority": "EPSG", "code": 8821 } }, { "name": "Longitude of false origin", "value": 7.83445, "unit": { "type": "AngularUnit", "name": "grad", "conversion_factor": 0.0157079632679489 }, "id": { "authority": "EPSG", "code": 8822 } }, { "name": "Easting at false origin", "value": 270, "unit": { "type": "LinearUnit", "name": "kilometre", "conversion_factor": 1000 }, "id": { "authority": "EPSG", "code": 8826 } }, { "name": "Northing at false origin", "value": 360, "unit": { "type": "LinearUnit", "name": "kilometre", "conversion_factor": 1000 }, "id": { "authority": "EPSG", "code": 8827 } } ], "id": { "authority": "EPSG", "code": 19937 } }
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 19937, 'EPSG', 19937, 'None', 'PROJECTION["Tunisia_Mining_Grid"],PARAMETER["latitude_of_origin",32.93676],PARAMETER["central_meridian",7.05100499999999],PARAMETER["false_easting",270000],PARAMETER["false_northing",360000]');