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CM SAF: Auxiliary Data

CM SAF products are available covering different areas in different spatial resolution. The auxiliary data section provides files
for download holding the following information
a) latitude and longitude,
b) the elevation,
c) fraction of land (FOL) and water (FOC) as well as a Land/Sea mask.

All hdf-files contain the information per pixel in the same projection as the corresponding CM SAF product. The information is
given for the centre coordinate of the pixel!
The metadata field contained in the filename of the product is given in the table below for easier identification of the correct
fields.
RegionLatitude-LongitudeElevationLand-Sea
CM SAF full disc area
("MA") , 15 km x 15 km
spatial resolution,
sinusoidal projection
01185_01185_LAT_LON01185_01185_HEIGHT01185_01185_LS_MASK
CM SAF full disk area,
CM SAF definition ("MD“),
satellite projection
03636_03636_LAT_LON--
CM SAF Baseline area
("CA"), 15 km x 15 km
spatial resolution,
sinusoidal projection
00777_00372_LAT_LON00777_00372_HEIGHT00777_00372_LS_MASK
CM SAF baseline area
plus MSG disk and inner
arctic ("CD"), 45 km x 45
km spatial resolution,
sinusoidal projection
00298_00371_LAT_LON00298_00371_HEIGHT00298_00371_LS_MASK
Global, 90km x 90km
spatial resolution in
cylindrical equal area
projection (reference
latitude 30° N)("GL")
00386_00162_LAT_LON00386_00162_HEIGHT00386_00162_LS_MASK
CM SAF Inner Arctic Area
("IA"), 15 km x 15 km patial
resolution, Lambert Azimuthal Equal area projection
00334_00334_LAT_LON--
Below are the auxiliary data for several CM SAF Climate Data Records.
Data RecordFile
CLAAS-2Auxiliary data for Level 2 products
Auxiliary data for Level 3 products (0.05° x 0.05°)
Auxiliary data for Level 3 products (0.25°x0.25°)
SARAH-2Acquisition time difference for instantaneous products

MW / July2017

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