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Data Analysis Examples

Hints before you start:

  • NCL uses an array syntax similar to Fortran-90.
  • NCL has 0-based subscripts and the rightmost subscript varies fastest.
  • Fortran has 1-based subscripts, and the leftmost subscript varies fastest.
  • Do loops should be avoided, since NCL, like Matlab and IDL, is an interpreted language.
How to call external Fortran and C routines from NCL

The following pages contain NCL scripts and graphics that you can download and use.

Anomalies

Climatology

COADS

Correlations

Divergent & rotational wind components

EOFs

Filters

GrADS CTL files

Isentropic levels

Local minima and maxima

Meridional overturning

MJO Clivar

NCL system interactions

Omega

Regression

Regridding

Sigma coordinate interpolation

Space time spectra

Spectral analysis

Time coordinates

Transects

Vertical interpolation

Vorticity

Wavelets

Weighted averages

Zonal