int2p

Function for interpolating from one set of pressure levels to another set using linear or ln(p) interpolation.

Synopsis

    function int2p(
        pin       : float,
        xin       : float,
        pout      : float,
        linlog[1] : integer
    )

Arguments

pin

input pressure levels in decreasing order (array of any dimensions, last dimension is npin)

xin

data at input pressure levels (array of same dimensions as pin)

linlog

linear interpolation in pressure (=1) or linear interpolation in ln(p) (!=1)

pout

output pressure levels in decreasing order (array of same dimensions as pin, only last dimension is replaced by npout)

Description

Example

begin
  pi =(/ 1000.,925.,850.,700.,600.,500.,400.,300.,250., \
          200.,150.,100.,70.,50.,30.,20.,10. /)

  po =(/ 1000.,950.,900.,850.,800.,750.,700.,600.,500., \
          425.,400.,300.,250.,200.,100.,85.,70.,50.,40.,\
           30.,25.,20.,15.,10. /)

  pi@_FillValue = -999.9

  xi   = pi
  nin  = dimsizes(pi)
  nout = dimsizes(po)
  linlog = 1

  pi(2) = pi@_FillValue
  pi(10) = pi@_FillValue

  xo = int2p (pi,xi,po,linlog)
  print(xo)
end

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