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Field

TOMS aerosol

X axis: whole world in 288 1.25° steps, first point at 180.00° W, last point at 178.75° E
Y axis: regular grid with 120 1.00° steps, first point at 60.00° S, last point at 59.00° N

Monthly data available from Jan1980 to Dec2001 ( 264 months)
Variable ai (dust data) 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

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 aerosol
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 "ai" 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, TOMS aerosol is available as GrADS .ctl and gzipped .dat files (size 0.528462 MB)
Alternatively, you can generate a netCDF file of the same size.

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