Hi,
I have looked at your L2P files and I am trying to do the same magic
that would allow me to display L2 CF1 netcdf files into IDV. I copied
almost all your medatadata in my netcdf file and I created a third
dimention to my "test" variable called "time".
I still cannot trigger my variable "test" as a grid. I don't know what
more to copy in there.
Any input from your part would be welcome.
Here is what I have so far.
dimensions:
time = 1; // (has coord.var)
nj = 45;
ni = 30;
variables:
float lat(nj=45, ni=30);
:long_name = "latitude";
:standard_name = "latitude";
:units = "degrees_south";
float lon(nj=45, ni=30);
:long_name = "longitude";
:standard_name = "longitude";
:units = "degrees_west";
int time(time=1);
:units = "seconds since 1981-01-01 00:00:00";
:long_name = "reference time of sst file";
:standard_name = "reference time of sst file";
:valid_min = "-1000";
:valid_man = "8000";
:scale_factor = 0.0050f; // float
:add_offset = 273.15f; // float
short test(time=1, nj=45, ni=30);
:units = "kelvin";
:_FillValue = -32768s; // short
:coordinates = "lon lat";
:long_name = "time131";
:valid_min = "-1000";
:valid_man = "8000";
:scale_factor = 0.0050f; // float
:add_offset = 273.15f; // float
";
:title = "MODIS Aqua L2P SST";
:DSD_entry_id = "JPL-L2P-MODIS_A";
:platform = "Aqua";
:sensor = "MODIS";
:Conventions = "CF-1.0";
:references = "GHRSST Data Processing Specification v1.6";
:institution = "NASA/JPL/OBPG/RSMAS";
:contact = "Ed Armstrong, JPL PO.DAAC, edward.m.armstrong at jpl.nasa.gov";
:GDS_version_id = "v1r1.5";
:netcdf_version_id = "3.5";
:creation_date = "Wed Jan 2 03:45:56 2008";
:history = "Quicklook MODIS L2P created at the GHRSST Global Data
Assembly Center (GDAC)";
:product_version = "1";
:spatial_resolution = "1km";
:start_date = "2008-01-01 UTC";
:start_time = "00:00:07 UTC";
:stop_date = "2008-01-01 UTC";
:stop_time = "00:05:05 UTC";
:northernmost_latitude = -56.24939f; // float
:southernmost_latitude = -80.19904f; // float
:easternmost_longitude = 4.987639f; // float
:westernmost_longitude = -73.76147f; // float
:file_quality_index = 1.0f; // float
:comment = "L2P Core without DT analysis or other ancillary fields; Night";
}
Craig Donlon wrote:
> Hello Denis:
> the GHRSST-PP (http://www.ghrsst-pp.org) provides swath data in netCDF
> format. Dave Poulter and Jorge Vazquez can help you look through one
> of the GHRSST-PP L2P files from MODIS and several other sensors
>
> all the best
> craig
>
> On 07/02/2008, Denis Nadeau <denis.nadeau at nasa.gov> wrote:
>
>> Hi,
>>
>> I am trying to convert a L2 Swath data file from HDF to NetCDF following
>> CF-1 Convention. I order to do so, I have tried to follow this method:
>> http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.0/cf-conventions.html#id2621732
>>
>> I did not succeed to read back the NetCDF file properly into either:
>> Ferret, Grads or IDV. (getting aggravated :-! )
>> I saw in the mailing list archive that "Jonathan Gregory" has tried to
>> do something similar. Did he succeed?
>>
>> http://mailman.cgd.ucar.edu/pipermail/cf-metadata/2004/000426.html
>>
>> So, is there a way to represent SWATH data using CF-1 Convention?
>> If so, is there a "Application" that can read the metadata and display
>> the image correctly (swath)?
>>
>> Here is a L2 Swath HDF file I am using.
>> ftp://airspar1u.ecs.nasa.gov/data/s4pa//Aqua_AIRS_Level2/AIRX2RET.005/2008/019//AIRS.2008.01.19.001.L2.RetStd.v5.0.14.0.G08020192400.hdf
>>
>> Thanks for your help on this issue.
>>
>>
>> Best Regards,
>> Denis
>>
>> --
>> Denis Nadeau
>> Goddard Earth Sciences Data & Information Services Center
>> Code 610.2
>> NASA Goddard Space Flight Center, Greenbelt, MD 20771
>> Phone: (301) 614-5514
>> Fax: (301) 614-5268
>> email: dnadeau at pop600.gsfc.nasa.gov
>> http://disc.gsfc.nasa.gov
>> http://giovanni.gsfc.nasa.gov
>>
>>
>> _______________________________________________
>> CF-metadata mailing list
>> CF-metadata at cgd.ucar.edu
>> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
>>
>>
>
>
>
Received on Wed Feb 13 2008 - 10:03:08 GMT
