Field

ECMWF S4 1Jan T2M
Found ensemble members 0 to 50
ECMWF S4 seasonal hindcasts/forecasts
X axis: whole world in 512 0.70° steps, first point at 0.00° E, last point at 359.30° E
Y axis: Gaussian grid with 256 steps, first point at 89.46° N, last point at 89.46° S

Monthly data available from Jan1981 to Dec2015 ( 420 months)
Variable T2M (2 metre temperature) in K
Full metadata. The associated land/sea mask is available for some operations

Get grid points, average area or generate subset

Mask:	no mask mask2.txt   add a mask to the list
Latitude:	°N - °N
Longitude:	°E - °E
Year range:	-
Boundaries:	halfway grid points interpolated
Make:	average max min set of grid points subset of the field
Considering:	everything land points sea points show/hide more only land points only sea points not land points not sea points
Units:	convert to Celsius leave in K

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 T2M
Minimum:	% valid data
Threshold:	no cut less than greater than K percentile normal 1971-2000

Create a field with lower spatial resolution

Average over blocks of longitude and latitude grid cells

The ECMWF member states do not permit us to give you access to the raw data. Please consult the ECMWF ERA or seasonal forecasting website for further information. analyse ensemble member 0 separately
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