[ncl-talk] TIMED/SABER NASA Data

[Dennis Shea]

Further, I know that you will always follow the ncl-talk mantra of "Look at
your data", you will note that

     time:

     86535854     86535899     86535943     86535988     86536032
86536077
     86536121     86536166     86536210     86536254     86536298
86536342
[snip]
     86552061     86552107     86552152     86552197     86552243
86552289
     86552337     86552386     86552434     86552481     86552535
86552606
     86552682     86552733  -2147483647     86590169     86590125
86590081
     86590036     86589992     86589947     86589903     86589858
86589814
[SNIP]

has missing values [ -2147483647    ]

These are not identified as such on the netCDF file.  Not good netCDF
practice.
Hence, you will have to add and set the _FillValue attribute.

Good luck



On Fri, Dec 12, 2014 at 1:44 PM, Dennis Shea <shea at ucar.edu> wrote:
>
> Looking at the global attributes, this is Level 2 data (likely SWATH)
> that has been converted
> from HDF to netCDF. The SABER dimensions are:
>
>  dimensions:
>       altitude = 370
>       vector = 3
>       event = 32577
>
> ===
> By analogy, you could possibly use Examples 2 & 3 at
>       http://www.ncl.ucar.edu/Applications/cloudsat.shtml
>
> That HDF-EOS file has
>
>    dimensions:
>       nray_2B_CLDCLASS = 37082
>       scalar_2B_CLDCLASS = 1
>       nbin_2B_CLDCLASS = 125
>
> I do not know what the 'vector' dimension is but I would speculate that
>
> SABER            CLOUDSAT
> altitude             nbin_2B_CLDCLASS
> event                nray_2B_CLDCLASS
>
> ========
> Unlike the CLOUDSAT which has 1D time and must be conformed to 2D,
> the SABER file looks like that has been done!
>
> EASY!
>
> Once you have completed a nice example, please contribute to NCL.
> It can be included on NCL's Application page ... with attribution, of
> course.
>
> Cheers
>
>
>
>
>
>
> On Thu, Dec 11, 2014 at 2:03 PM, Verena Lili <verena.prick at gmail.com>
> wrote:
>
>> Dear NCL,
>>
>> I'd like to extract the kinetic temperature variable for each netcdf file
>> provided by TIMED/SABER team. Unfortunately, they only have an IDL
>> converter tool (subroutine) to regrid the netcdf output into the standard
>> grid and height (km), So,, is there any solution to convert these data
>> using ncl?
>>
>> Thank you.
>>
>> ===
>>
>> The example data is here:
>>
>> ftp://saber.gats-inc.com/custom/Temp_O3/v1.07/SABER_Temp_O3_April2002_v1.07.nc
>>
>> =====
>>
>>
>> Copyright (C) 1995-2014 - All Rights Reserved
>>  University Corporation for Atmospheric Research
>>  NCAR Command Language Version 6.2.0
>>  The use of this software is governed by a License Agreement.
>>  See http://www.ncl.ucar.edu/ for more details.
>>
>> Variable: f
>> Type: file
>> filename: SABER_Temp_O3_April2003_v1.07
>> path: SABER_Temp_O3_April2003_v1.07.nc
>>    file global attributes:
>>       Title : SABER Custom Level2A Product!
>>       Data_Product_Type : Processed Level2A
>>       Mission : TIMED
>>       Software_Name : ./Level2a
>>       Software_Version : 01.07
>>       Calibration_Version : 01.07
>>       Product_Format_Version : 003
>>       Data_Product_Version : 01.07
>>    dimensions:
>>       altitude = 370
>>       vector = 3
>>       event = 32577
>>    variables:
>>       integer orbit ( event )
>>
>>       integer date ( event )
>>          long_name : Date [yyyyddd]
>>          units : yyyyddd
>>
>>       integer time ( event, altitude )
>>          long_name : Msec Since Midnight
>>          units : msec
>>
>>       float tpaltitude ( event, altitude )
>>          long_name : Tangent-Point Altitude
>>          units : km
>>
>>       float tplatitude ( event, altitude )
>>          long_name : Tangent-Point Latitude
>>          units : degrees
>>
>>       float tplongitude ( event, altitude )
>>          long_name : Tangent-Point Longitude
>>          units : degrees
>>
>>       float tpgpaltitude ( event, altitude )
>>          long_name : Tangent-Point Geopotential Altitude
>>          units : km
>>
>>       float tpSolarLT ( event, altitude )
>>          long_name : Tangent-Point Local-Solar Time
>>          units : msec
>>
>>       float tpSolarZen ( event, altitude )
>>          long_name : Tangent-Point Solar-Zenith Angle
>>          units : degrees
>>
>>       float pressure ( event, altitude )
>>          long_name : Pressure
>>          units : mbar
>>
>>       float density ( event, altitude )
>>          long_name : Atmospheric Density
>>          units : 1/cm^3
>>
>>   *    float ktemp ( event, altitude )*
>> *         long_name : Kinetic Temperature*
>> *         units : K*
>>
>>       float O3_96 ( event, altitude )
>>          long_name : O3 Mixing Ratio 9.6um
>>          units : unitless
>>
>>       float O3_127 ( event, altitude )
>>          long_name : O3 Mixing Ratio 1.27um Channel
>>          units : unitless
>>
>>
>> --
>> Regards,
>> Dr. Verena.
>> School of Marine and Atmospheric Sciences
>> Stony Brook University
>> homepage: http://www.somas.stonybrook.edu/
>>
>> _______________________________________________
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>>
>>
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