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Field

CM-SAF cfc
CM SAF cLoud, Albedo and RAdiation dataset, AVHRR-based, edition 2 (CLARA-A2)
X axis: whole world in 1440 0.25° steps, first point at 179.88° W, last point at 179.88° E
Y axis: regular grid with 720 0.25° steps, first point at 89.88° S, last point at 89.88° N

Monthly data available from Jan1982 to Jun2019 ( 450 months)
Variable cfc (cloud fraction) in %
Full metadata.

Get grid points, average area or generate subset

Mask:	no mask   add a mask to the list
Latitude:	°N - °N
Longitude:	°E - °E
Boundaries:	halfway grid points interpolated
Make:	average max min set of grid points subset of the field
Demand at least:	% valid points in this region
Units:	convert to 1 leave in

Create a field with lower time resolution

First fill missing data:	ignore, climatology, trend, persistence.
Then apply:	-month running mean with direction backward centred forward
Then apply new time scale:	keep same time scale annual (Jul-Jun) annual (Jan-Dec) biannual seasonal
New variable:	mean sd sum sum above sum below number min time of min max time of max first time last time of cfc
Minimum:	% valid data
Threshold:	no cut less than greater than absolute value percentile normal 1971-2000

Create a field with lower spatial resolution

Average over blocks of longitude and latitude grid cells

getfieldtype: please ask the administrator to add "cfc" to the lists in getfieldtype

Construct a statistical forecast model from this field

Please consider downloading this field from the authoritative site.
If you really want to get it here, CM-SAF cfc is available as a netcdf file (size 249.472 MB).

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