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Home — Field: GACP aerosol optical depth

Field

GACP aerosol optical depth
more information Global Aerosol Climatology (GISS/NASA)
X axis: whole world in 360 1.00° steps, first point at 179.50° W, last point at 179.50° E
Y axis: regular grid with 180 1.00° steps, first point at 89.50° S, last point at 89.50° N
Z at 0.00
Monthly data available from Aug1981 to Jun2006 ( 299 months)
Variable tau (aerosol optical thickness at 550nm) in 1
Full metadata.

Get grid points, average area or generate subset
Mask:   add a mask to the list help
Latitude: °N - °N help
Longitude: °E - °E
Boundaries:
Make: average max min set of grid points subset of the field help
Demand at least: % valid points in this region help
helpApply monthly high/low-pass filter
filter
cut-off value months
requiring at least % valid data
helpApply year-on-year high/low-pass filter
filter
cut-off value years
requiring at least % valid data
helpCreate a field with lower time resolution
New time scale:
New variable: of aerosol optical depth
Threshold:
Minimum:% valid data
First apply:-month running mean
Missing data: ignore, climatology, trend, persistence.
helpCreate a field with lower spatial resolution
Average over blocks of longitude and latitude grid cells
getfieldtype: please ask me to add "tau" to the lists in getfieldtype

Construct a statistical forecast model from this field

Compute anomalies
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Compute zonal mean
Please consider downloading this field from the authoritative site.
If you really want to get it here, GACP aerosol optical depth is available as GrADS .ctl and gzipped .dat files (size 73.9105 MB)
Alternatively, you can generate a netCDF file of the same size.