projected
Instituto Geografico Portugues; http://www.igeo.pt/
2010-03-13
true
false
http://www.opengis.net/def/crs/EPSG/0/5017
Lisbon 1890 / Portugal Bonne New
Replaces original definition using Lisbon meridian, CRS code 2963.
Portugal - mainland - onshore.
-9.56
-6.19
36.95
42.16
OGP
2014-05-01
false
false
http://www.opengis.net/def/area/EPSG/0/1294
Portugal - mainland - onshore
Medium scale topographic mapping.
conversion
Instituto Geografico Portugues; http://www.igeo.pt
2010-03-13
true
false
39
40
N
8
7
54.862
W
http://www.opengis.net/def/coordinateOperation/EPSG/0/5019
Portugal Bonne New
Replaces original definition referenced to Lisbon meridian (proj code 19979).
Portugal - mainland - onshore.
-9.56
-6.19
36.95
42.16
OGP
2014-05-01
false
false
http://www.opengis.net/def/area/EPSG/0/1294
Portugal - mainland - onshore
1:50,000 topographic mapping.
EPSG guidance note #7-2, http://www.epsg.org
2002-07-13
false
true
See information source of Bonne, code 9827, for general methodology.
http://www.opengis.net/def/method/EPSG/0/9828
Bonne (South Orientated)
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.
The formulas to convert geodetic latitude and longitude (lat, lon) to Easting and Northing are:
W = FE ? (rho . sin T)
S = FN ? (a . mO / sin(latO) ? rho . cos T)
where
m = cos(lat) / (1 ? e^2sin^2(lat))^0.5
with lat in radians and mO for latO, the latitude of the origin, derived in the same way.
M = a[(1 ? e^2/4 ? 3e^4/64 ? 5e^6/256 ?....)lat ? (3e^2/8 + 3e^4/32 + 45e^6/1024+....)sin(2 lat) + (15e^4/256 + 45e^6/1024 +.....)sin(4 lat) ? (35e^6/3072 + ....)sin(6 lat) + .....]
with lat in radians and MO for latO, the latitude of the origin, derived in the same way.
rho = a . mO / sin(latO) + MO ? M
T = a . m (lon ? lonO) / rho with lon and lonO in radians
For the reverse calculation:
X = FE ? W
Y = FN ? S
rho = ± [X^2 + (a . mO / sin(latO) ? Y)^2]^0.5 taking the sign of latO
M = a . mO / sin(latO) + MO ? rho
mu = M / [a (1 ? e^2/4 ? 3e^4/64 ? 5e^6/256 ? ?)]
e1 = [1 ? (1 ? e^2)^0.5] / [1 + (1 ? e^2)^0.5]
lat = mu + ((3 e1 / 2) ? (27 e1^3 / 32) +.....)sin(2 mu) + ((21 e1^2 / 16) ? (55 e1^4 / 32) + ....)sin(4 mu)
+ ((151 e1^3 / 96) +.....)sin(6 mu) + ((1097 e1^4 / 512) ? ....)sin(8 mu) + ......
m = cos(lat) / (1 ? e^2 sin^2(lat))^0.5
If latO is not negative
lon = lonO + rho {atan[X / (a . mO / sin(latO) ? Y)]} / a . m
but if lonO is negative
lon = lonO + rho {atan[? X / (Y ? a . mO / sin(latO))]} / a . m
In either case, if lat = ±90°, m = 0 and the equation for lon is indeterminate, so use lon = lonO.
In these formulas the terms FE and FN retain their definition, i.e. in the Bonne (South Orientated) method they increase the Westing and Southing value at the natural origin. In this method they are effectively false westing (FW) and false southing (FS) respectively.
2
2
39.666666666667
EPSG guidance note number 7.
1999-09-09
false
The latitude of the point from which the values of both the geographical coordinates on the ellipsoid and the grid coordinates on the projection are deemed to increment or decrement for computational purposes. Alternatively it may be considered as the latitude of the point which in the absence of application of false coordinates has grid coordinates of (0,0).
http://www.opengis.net/def/parameter/EPSG/0/8801
Latitude of natural origin
-8.131906111111
Abbeviated as "CM".
Abbreviation for "Central Meridian".
EPSG guidance note number 7.
2002-06-22
false
The longitude of the point from which the values of both the geographical coordinates on the ellipsoid and the grid coordinates on the projection are deemed to increment or decrement for computational purposes. Alternatively it may be considered as the longitude of the point which in the absence of application of false coordinates has grid coordinates of (0,0). Sometimes known as "central meridian (CM)".
http://www.opengis.net/def/parameter/EPSG/0/8802
Longitude of natural origin
0
This alias applies only in the case of projection methods which have an axis positive west, e.g. Transverse Mercator (South Orientated).
EPSG guidance note number 7.
2002-07-31
false
Since the natural origin may be at or near the centre of the projection and under normal coordinate circumstances would thus give rise to negative coordinates over parts of the mapped area, this origin is usually given false coordinates which are large enough to avoid this inconvenience. The False Easting, FE, is the value assigned to the abscissa (east or west) axis of the projection grid at the natural origin.
http://www.opengis.net/def/parameter/EPSG/0/8806
False easting
0
This alias applies only in the case of projection methods which have an axis positive south, e.g. Transverse Mercator (South Orientated).
EPSG guidance note number 7.
2002-07-31
false
Since the natural origin may be at or near the centre of the projection and under normal coordinate circumstances would thus give rise to negative coordinates over parts of the mapped area, this origin is usually given false coordinates which are large enough to avoid this inconvenience. The False Northing, FN, is the value assigned to the ordinate (north or south) axis of the projection grid at the natural origin.
http://www.opengis.net/def/parameter/EPSG/0/8807
False northing
geographic 2D
Geodetic Services Directorate, Instituto Geografico e Cadastral, Lisbon; http://www.igeo.pt/
2004-01-06
true
false
http://www.opengis.net/def/crs/EPSG/0/4666
Lisbon 1890
Replaced by Lisbon 1937 system which uses International 1924 ellipsoid (code 4207).
Portugal - mainland - onshore.
-9.56
-6.19
36.95
42.16
OGP
2014-05-01
false
false
http://www.opengis.net/def/area/EPSG/0/1294
Portugal - mainland - onshore
Geodetic survey.
ellipsoidal
OGP
2008-06-23
false
http://www.opengis.net/def/cs/EPSG/0/6422
Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: degree
Coordinates referenced to this CS are in degrees. Any degree representation (e.g. DMSH, decimal, etc.) may be used but that used must be declared for the user by the supplier of data. Used in geographic 2D coordinate reference systems.
http://www.opengis.net/def/axis/EPSG/0/106
Lat
north
http://www.opengis.net/def/axis/EPSG/0/107
Long
east
geodetic
Instituto Geografico e Cadastral Lisbon http://www.igeo.pt
2008-06-24
false
http://www.opengis.net/def/datum/EPSG/0/6666
Lisbon 1890
Replaced by Lisbon 1937 adjustment (which uses International 1924 ellipsoid).
Topographic mapping.
Fundamental point: Castelo Sao Jorge, Lisbon. Latitude: 38°42'43.631"N, longitude: 9°07'54.862"W of Greenwich.
1937-01-01
Cartesian
OGP
2002-07-13
false
http://www.opengis.net/def/cs/EPSG/0/6509
Cartesian 2D CS. Axes: southing, westing (P,M). Orientations: south, west. UoM: m.
Used in old projected coordinate reference systems in Portugal.
http://www.opengis.net/def/axis/EPSG/0/135
P
south
http://www.opengis.net/def/axis/EPSG/0/134
M
west