OPeNDAP

Hello,
   My machine is in Mac OS X 10 8.1, ncl version is 6.1.0-beta and I want to access OPENDAP data.
 I tried opendap.ncl
--------------------------------------
   ncopen: filename "http://test.opendap.org/data/nc/123.nc": NetCDF: Unknown file format
(0) OPeNDAP isfilepresent test unsuccessful.
(0) Either file doesn't exist, or NCL does not have OPeNDAP capabilities on this system
---------------------
  What is wrong?

  Thank you for your help!

Mingxuan

------opendap.ncl-----------------
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/shea_util.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/diagnostics_cam.ncl"

begin
  url= "http://test.opendap.org/data/nc/"
  filename = url + "123.nc"
  print(filename)
  exists = isfilepresent(filename)
  if(.not.exists) then
    print("OPeNDAP isfilepresent test unsuccessful.")
    print("Either file doesn't exist, or NCL does not have OPeNDAP capabilities on this system")
  else
    print("OPeNDAP isfilepresent test successful.")
    f = addfile(filename,"r")
    vars = getfilevarnames(f)
    print(vars) ; should be (in any order): "l","j","i","cross","aloan",
                  ; "shot","order","bears"
  end if
end
-----------------
 
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Received on Wed Sep 19 10:08:30 2012