The more recent opendap hdf5 handler replaces forward slash by underscore so it
becomes more legit netcdf variable names. I'll do a test to see if it does so
for OMI L2 data. Otherwise it should be easy to change it in NcML .
-Fan
________________________________________
From: Lynnes, Christopher S. (GSFC-6102)
Sent: Tuesday, March 20, 2012 6:35 PM
To: Dennis Heimbigner
Cc: netcdfgroup@xxxxxxxxxxxxxxxx; Fang, Fan (GSFC-610.2)[ADNET SYSTEMS INC]
Subject: Re: [netcdfgroup] Problem to use NetCDF OpenDap
On Mar 20, 2012, at 7:05 PM, Dennis Heimbigner wrote:
> Wei-
> the fundamental problem is that the forward
> slash character '/' is not legal in DAP version 2
> names.
Hmmm…we'll take a look at it and see if we can do something with the NCML
handler in our OPeNDAP server to replace the slashes…
>
> Wei Huang wrote:
>> Hi, There,
>>
>> We try to use NetCDF OpenDap to access dataset:
>> http://aurapar2u.ecs.nasa.gov/opendap/Aura_OMI_Level2/OMHCHO.003/2008/001/OMI-Aura_L2-OMHCHO_2008m0101t0028-o18418_v003-2008m0704t132227.he5
>> We can only get 3 variables:
>>
>> file global attributes:
>> title : NASA HDFEOS5 Swath
>> Conventions : CF-1.4
>> dimensions:
>> nTimes = 1644
>> nXtrack = 60
>> variables:
>> float lat ( nTimes, nXtrack )
>> _FillValue : -1e+30
>> title : Geodetic Latitude
>> UniqueFieldDefinition : Aura-Shared
>> add_offset : 0
>> scale_factor : 1
>> missing_value : -1e+30
>> valid_range : ( -90, 90 )
>> coordinates : lat lon
>> units : degrees_north
>> standard_name : latitude
>>
>> float lon ( nTimes, nXtrack )
>> _FillValue : -1e+30
>> title : Geodetic Longitude
>> UniqueFieldDefinition : Aura-Shared
>> add_offset : 0
>> scale_factor : 1
>> missing_value : -1e+30
>> valid_range : ( -180, 180 )
>> coordinates : lat lon
>> units : degrees_east
>> standard_name : longitude
>>
>> double time ( nTimes )
>> _FillValue : -1e+30
>> title : Time in TAI units
>> units : s
>> UniqueFieldDefinition : Aura-Shared
>> add_offset : 0
>> scale_factor : 1
>> missing_value : -1e+30
>> valid_range : ( 0, 10000000000 )
>>
>>
>>
>> By check:
>>
>> http://aurapar2u.ecs.nasa.gov/opendap/Aura_OMI_Level2/OMHCHO.003/2008/001/OMI-Aura_L2-OMHCHO_2008m0101t0028-o18418_v003-2008m0704t132227.he5.html
>>
>> We can see there are a bunch of variables.
>>
>> If we download the dataset, we can see there are more than 3 variables
>> as well.
>>
>> Anyone has experience on this?
>>
>> Thanks,
>>
>> Wei
>>
>> huangwei@xxxxxxxx <mailto:huangwei@xxxxxxxx>
>> VETS/CISL
>> National Center for Atmospheric Research
>> P.O. Box 3000 (1850 Table Mesa Dr.)
>> Boulder, CO 80307-3000 USA
>> (303) 497-8924
>>
>>
>>
>>
>>
>>
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> netcdfgroup mailing list
>> netcdfgroup@xxxxxxxxxxxxxxxx
>> For list information or to unsubscribe, visit:
>> http://www.unidata.ucar.edu/mailing_lists/
>
> _______________________________________________
> netcdfgroup mailing list
> netcdfgroup@xxxxxxxxxxxxxxxx
> For list information or to unsubscribe, visit:
> http://www.unidata.ucar.edu/mailing_lists/
--
Dr. Christopher Lynnes, NASA/GSFC, Code 610.2, 301-614-5185