[gradsusr] xdfopen via opendap (developed from re Re: sdfopen with opendap file)

[Namba Takaya]

Dear Sir 
I tried to read the HDF file of  pathfinder monthly sst via opendap 
Fortunately I could read the sst data by xdfopen and data descriptor file(bsst.ctl) as bellow,Then I tried to develop using % of DSET in the data descriptor file.Then I have a problem explained below and could you tell me how to solve the problem?
Best Regards, Takaya Namba
bsst.ctl (data descriptor file)
DSET  http://data.nodc.noaa.gov/opendap/pathfinder/Version5.0/Monthly/1985/198501.s04m1pfv50-bsst-16b.hdfoptions yrev***DSET  http://data.nodc.noaa.gov/opendap/pathfinder/Version5.0/Monthly/%y4/%y4%m2.s04m1pfv50-bsst-16b.hdfTITLE This is a sampleUNDEF 99999.0YDEF lat 4096 LINEAR -90 0.043945XDEF lon 8192 LINEAR -180 0.043945***TDEF time 1 linear 00:00z15JAN1985 1moVARS 1:bsst=>bsst 1 99 surface temperatureENDVARS

However, I would like to use DSET  http://data.nodc.noaa.gov/opendap/pathfinder/Version5.0/Monthly/%y4/%y4%m2.s04m1pfv50-bsst-16b.hdfinstead of DSET  http://data.nodc.noaa.gov/opendap/pathfinder/Version5.0/Monthly/1985/198501.s04m1pfv50-bsst-16b.hdf.Because I would like to do all the thirty years from jan 1988 to 2009.
I added the line in the bsst.ctlTDEF time 1 linear 00:00z15JAN1985 1mo and then grads -cl batch-opendap.gs.
However, the error comes like below,
Error: nc_open failed to open file http://data.nodc.noaa.gov/opendap/pathfinder/Version5.0/Monthly/%y4/%y4%m2.s04m1pfv50-bsst-16b.hdfNetCDF: DAP server errorgadsdf: Couldn't ingest SDF metadata.SDF Descriptor file bsst.ctl was not successfully opened & parsed.
I understand that I could not replace /%y4/%y4%m2  with /1985/198501 by the data descriptor file.Could you tell me how can I replace  by the proper descriptor file as I expected?
(batch-opendap.gs  grads script file)'set gxout shaded''xdfopen bsst.ctl''q file'say result'set lat 10 50''set lon 120 170''set T 1''set Z 1''d bsst''cbar''quit'

dncdump -h "http://data.nodc.noaa.gov/opendap/pathfinder/Version5.0/Monthly/1985/198501.s04m1pfv50-bsst-16b.hdf" is as below,
netcdf 198501.s04m1pfv50-bsst-16b { // format variant: 64bit dimensions:        lat = 4096 ;        lon = 8192 ;variables:        short bsst(lat, lon) ;                bsst:dsp_PixelType = 1b ;                bsst:dsp_PixelSize = 2b ;                bsst:dsp_Flag = 0s ;                bsst:dsp_nBits = 16s ;                bsst:dsp_LineSize = 0 ;                bsst:dsp_cal_name = "Temperature" ;                bsst:units = "Temp" ;                bsst:dsp_cal_eqnNumber = 2s ;                bsst:dsp_cal_CoeffsLength = 8s ;                bsst:dsp_cal_coeffs = 0.075f, -3.f ;                bsst:scale_factor = 0.075f ;                bsst:add_off = -3.f ;




 		 	   		  
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