Image: Antarctica 6400px from Blue Marble

Description: Antarctica. An orthographic projection of NASA's Blue Marble data set (1 km resolution global satellite composite). "MODIS observations of polar sea ice were combined with observations of Antarctica made by the National Oceanic and Atmospheric Administration’s AVHRR sensor—the Advanced Very High Resolution Radiometer." Image was generated using a custom C program for handling the Blue Marble files, with orthographic projection formulas from MathWorld. Note: this image has been manually modified to fill in an area of black pixels in the ocean, in the upper right quadrant. The black pixels are presumed to be due to missing data in the land/sea mask used in making the original Blue Marble image.
Title: Antarctica 6400px from Blue Marble
Credit: own work, using Blue Marble data from http://visibleearth.nasa.gov/view_rec.php?id=2433
Author: Dave Pape
Permission: This work has been released into the public domain by its author, Davepape. This applies worldwide. In some countries this may not be legally possible; if so: Davepape grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No