BOREAS Follow-on DSP-10 Regridded Moss Cover Maps, 54 km
--------------------------------------------------------
Revised: March 2, 2001

These images were produced by aggregating the 1-km moss maps to a 54-km 
pixel size. 54-km roughly equals one-half a degree (30 minutes) of
latitude. The original 1-km moss map was derived from the 1-km land
cover classification that was done by Lou Steyaert.  

See document "dsp09_moss_cover_doc.html" for more information on the
original data product that this is based on.

If there are any questions about how this aggregation was done, please
contact Gloria Rapalee (Gloria.Rapalee@gsfc.nasa.gov).


Image Specifications
--------------------
The following files contain the percentage of each class within each
54-km pixel.

moss00_54km.img
moss01_54km.img
moss02_54km.img
moss03_54km.img
moss04_54km.img
moss05_54km.img
moss06_54km.img

Each image is 16 pixels by 12 lines and contains no leading header bytes.
Each pixel in the image is represented by one-byte.

The class numbers correspond to the class numbers used by Gloria Rappalee in 
her classification.

Class 0 Outside of data area of image (edge pixels)
Class 1 Feather Moss
Class 2 Feather Moss/Sphagnum
Class 3 Sphagnum
Class 4 Feather/Brown/Spagnum Moss Mix
Class 5 No Moss
Class 6 Water


Spatial Coverage
----------------
These data cover the same area as the land cover classification from Lou
Steyaert.   The upper left corner is identical to the upper left corner of
Lou Steyaert's classification.  Due to rounding off to the nearest 54-km 
pixel, the other corners are in slightly different locations.

Corner          X         Y        Longitude         Latitude
--------------------------------------------------------------------------
Upper Left    174.0707  785.4531 108¡03'09.30" W   58¡01'07.68" N
Upper Right   1038.0707 785.4531  93¡46'22.83" W   56¡53'37.06" N
Lower Left    174.0707  137.4531 108¡27'13.26" W   52¡12'28.30" N
Lower Right   1038.0707 137.4531  96¡02'33.91" W   51¡13'46.60" N

The X and Y coordinates are the BOREAS grid coordinates which are based on
an Albers Equal Area Conic (AEAC) projection with the following parameters:

Origin: 111.00 deg W, 51.00 deg N
Standard Parallels: 52.5 deg N
                    58.5 deg N
Units of Measure: kilometers