Field

MIT #TC tracks

X axis: whole world in 72 5.00° steps, first point at 2.50° E, last point at 357.50° E
Y axis: regular grid with 36 5.00° steps, first point at 87.50° S, last point at 87.50° N
Z at 0.00
Monthly data available from Jan1851 to Dec2010 (1920 months)
Variable tctracks (number of TC tracks in grid box) in 1
Full metadata.

Get grid points, average area or generate subset

Mask:	no mask mask4.txt   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

New 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 #TC tracks
Threshold:	no cut less than greater than 1 percentile normal 1971-2000
Minimum:	% valid data
First apply:	-month running mean
Missing data:	ignore, climatology, trend, persistence.

Create a field with lower spatial resolution

Average over blocks of longitude and latitude grid cells

getfieldtype: please ask the administrator to add "tctracks" 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, MIT #TC tracks is available as GrADS .ctl and gzipped .dat files (size 0.0840607 MB)
Alternatively, you can generate a netCDF file of the same size.

Select a time series

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