polar stereographic coordinate transformation (lat/lon to map)

Transforms lat/lon data into map coordinates for a polar stereographic map projection. NSIDC/SCAR
2.5K Downloads
Updated 19 Sep 2011

View License

POLARSTEREO_FWD transforms lat/lon data to map coordinates for a polar stereographic system
[X,Y]=POLARSTEREO_FWD(LAT,LONG,EARTHRADIUS,ECCENTRICITY,LAT_TRUE,LON_POSY)
X and Y are the map coordinates (scalars, vectors, or matrices of equal size).
LAT and LON are in decimal degrees with negative numbers (-) for S and W.
EARTHRADIUS is the radius of the earth defined in the projection
(default is 6378137.0 m, WGS84)
ECCENTRICITY is the earth's misshapenness
(default is 0.08181919)
LAT_TRUE is the latitude of true scale in degrees, aka standard parallel
(default is -70). Note that some NSIDC data use 70 and some use 71.
LON_POSY is the meridian in degrees along the positive Y axis of the map
(default is 0)

The National Snow and Ice Data Center (NSIDC) and Scientific Committee
on Antarctic Research (SCAR) use a version of the polar stereographic
projection that Matlab does not have. This file does transformations to
map coordinates from geographic coordinates to facilitate
comparisons with other datasets.

Equations from: Map Projections - A Working manual - by J.P. Snyder. 1987
See the section on Polar Stereographic, with a south polar aspect and
known phi_c not at the pole.

See also: POLARSTEREO_INV

Cite As

Andrew Bliss (2024). polar stereographic coordinate transformation (lat/lon to map) (https://www.mathworks.com/matlabcentral/fileexchange/32950-polar-stereographic-coordinate-transformation-lat-lon-to-map), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2007a
Compatible with any release
Platform Compatibility
Windows macOS Linux

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!
Version Published Release Notes
1.0.0.0