All files are 1000 columns x 1800 rows.

CDR-quality Data
----------------

The ".bin" files are flat binary.
Each .bin data is also available in geotiff (.tif).

Daily temperature files (YYYYMMDD.bin or YYYYMMDD_cfq.bin) are 4-byte floating point, big_endian.

Monthly mean temperature files (YYYYMM_mean.bin, or YYYYMM_mean_cfq.bin) are 4-byte floating point, big_endian.
Values are:
 
 0. - No decision due to clouds.
 1. - water
 2. - Greenland land (non ice sheet)
 3. - No decision, due to insufficient number of days for determining monthly average.
 4. - No decision, due to insufficient temporal distribution of daily IST values for 
      determining monthly average.
 5. - No data (0 value) due to no valid daily data. 

Monthly number of days files (YYYYMM_ndays.bin or YYYYMM_ndays_cfq.bin) are 2-byte integer, big_endian.

Note: Files with "_cfq" signify the data was put through a cloud-filtering algorithm (applies to May through 
      September).

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Ancillary Data
--------------

The latitude and longitude files (lats_cdr_1.5625km_1000x1800.bin, lons_cdr_1.5625km_1000x1800.bin) are 
4-byte floating point, big-endian. 
Each value (degrees) is for the center of the grid (longitudes are negative West, positive East).


The land/ice sheet mask file (landicesheetmask_cdr_1.5625km_1000x1800.bin) is a 1-byte integer, 
with values as follows:
 
  0 - non-Greenland coast
  1 - Greenland ice sheet
  2 - water
  3 - Greenland land (non ice sheet)
  4 - Greenland coast
  6 - non-Greenland land
  

The DEM data is 4-byte floating point, big-endian, in meters (-0.1 represents water).

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Mapping Information
-------------------

Data is in the SSMI Polar Stereographic projection, 1.5625 kilometer resolution.
See http://nsidc.org/data/polar_stereo/ps_grids.html for information (coarser resolutions).

The upper/left edge of CDR pixel (0,0) corresponds to the upper/left of pixel (508,1028) of the 
full 1216x1792 6.25 km map described at NSIDC.
The lower/right edge of CDR pixel (999,1799) corresponds to the lower/right edge of pixel (757,1477) of the 
full 1216x1792 6.25 km map described at NSIDC.