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itslive2geo documentation

The itslive2geo function transforms projected map coordinates to geographic coordinates.1

Syntax

[lat, lon] = itslive2geo(region, x, y)

Description

[lat, lon] = itslive2geo(region, x, y) converts projected map coordinates x and y into geographic coordinates lat and lon. The region must be a number from 1 to 19 corresponding to ITS_LIVE regions (which approximately match RGI regions). For a map of ITS_LIVE regions, type itslive_regions.

Example

Convert this spot on Malaspina Glacier Alaska (Region 1) to map coordinates:

[x, y] = geo2itslive(1, 60.08343, -140.46707)

x =
   -3298427.76
y =
     315689.27

Now convert them back into geocoordinates:

[lat, lon] = itslive2geo(1, x, y)

lat =
   60.0834
lon =
 -140.4671

Author Info

The MATLAB functions in this repo and this documentation were written by Chad A. Greene of NASA/JPL. The NASA MEaSUREs ITS_LIVE project is by Alex S. Gardner and the ITS_LIVE team.

Footnotes

  1. Requires MATLAB's Mapping Toolbox. ↩