Interrupted Goode Homolosine (Oceanic View)¶
Classification |
Pseudocylindrical |
Available forms |
Forward and inverse, spherical projection |
Defined area |
Global |
Alias |
igh_o |
Domain |
2D |
Input type |
Geodetic coordinates |
Output type |
Projected coordinates |
proj-string: +proj=igh_o +lon_0=-160¶
The Interrupted Goode Homolosine (Oceanic View) projection is an equal-area
composite projection intended for making maps of the Earth's oceans. Low
latitudes are comprised of six separate Sinusoidal projection regions, and high
latitudes are comprised of six separate Mollweide (homolographic)
projections. The transition latitude is at 40d 44' 11.8", where the Sinusoidal
and Mollweide scales are equal. The lobes in this projection are chosen to
emphasize the ocean area of the Earth when used with a central longitude
of -160 degrees. This projection was first published in 1925 by J. P. Goode
[Goode1925].
Parameters¶
Note
All parameters are optional for the projection. A value of +lon_0=-160 is recommended.
- +lon_0=<value>¶
Longitude of projection center.
Defaults to 0.0.
Note
The default convention is to interpret this value as decimal degrees. To specify radians instead, follow the value with the "r" character.
Example: +lon_0=1.570796r
See Projection Units for more information.
- +R=<value>¶
Radius of the sphere, given in meters. If used in conjunction with
+ellps,+Rtakes precedence.See Ellipsoid size parameters for more information.
- +x_0=<value>¶
False easting.
Defaults to 0.0.
- +y_0=<value>¶
False northing.
Defaults to 0.0.