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ncrcat \- netCDF Record Concatenator
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ncrcat [-A] [-C] [-c] [-D
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concatenates record variables across an arbitrary number
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The final record dimension is by default the sum of the lengths of the
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record dimensions in the input files.
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Input files may vary in size, but each must have a record dimension.
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The record coordinate, if any, should be monotonic (or else non-fatal
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warnings may be generated).
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Hyperslabs of the record dimension which include more than one file are
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hyperslab option for the record dimension only,
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supported for non-record dimensions.
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applies special rules to ARM convention time fields (e.g.,
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along the record dimension, and store the results in
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ncrcat 85.nc 86.nc 87.nc 88.nc 89.nc 8589.nc
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ncrcat 8[56789].nc 8589.nc
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ncrcat -n 5,2,1 85.nc 8589.nc
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These three methods produce identical answers.
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contain a record coordinate
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of length 12 defined such that
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contains data from March 1986, etc.
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NCO knows how to hyperslab the record dimension across files.
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Thus, to concatenate data from December, 1985--February, 1986:
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ncrcat -d time,11,13 85.nc 86.nc 87.nc 8512_8602.nc
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ncrcat -F -d time,12,14 85.nc 86.nc 87.nc 8512_8602.nc
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is superfluous, but does not cause an error.
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turns on the Fortran (1-based) indexing convention.
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The following uses the
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option to concatenate all the March
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temperature data from multiple input files into a single output file
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ncrcat -F -d time,3,,12 -v temperature 85.nc 86.nc 87.nc 858687_03.nc
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coordinate is incrementally numbered such that
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January, 1985 = 1 and December, 1989 = 60.
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only expands to the five desired files, the following
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concatenates June, 1985--June, 1989:
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ncrcat -d time,6.,54. ??.nc 8506_8906.nc