Field

MERRA/PSL RefET long

X axis: whole world in 576 0.62° steps, first point at 180.00° W, last point at 179.38° E
Y axis: regular grid with 361 0.50° steps, first point at 90.00° S, last point at 90.00° N

Monthly data available from Jan1980 to Dec2021 ( 504 months)
Variable ETrs (monthly mean of daily Reference ET, long crop, MERRA2-forced ASCE (Penman-Monteith)) in mm/day
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
Year range:	-
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

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 RefET long
Minimum:	% valid data
Threshold:	no cut less than greater than mm/day 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 "ETrs" 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, MERRA/PSL RefET long is available as a netcdf file (size 274.3 MB).

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