[Met_help] [rt.rap.ucar.edu #56698] History for about reading MADIS netcdf file in METv3.1
Paul Oldenburg via RT
met_help at ucar.edu
Mon Jun 11 09:04:49 MDT 2012
----------------------------------------------------------------
Initial Request
----------------------------------------------------------------
Hello,
I am now using MADIS observation in netcdf to do the comparison between
wrfoutput and observation.
However, I think that MADIS netcdf format may not be injested by MET and I
am not quite sure how to use it. I searched the internet and could not find
the right solution. Could you give me some suggestions about this ( how to
convert it into the format that Met can read)?
Thanks a lot and best wishes!
Xiaoxi Zhu
Stony Brook University
----------------------------------------------------------------
Complete Ticket History
----------------------------------------------------------------
Subject: Re: [rt.rap.ucar.edu #56698] about reading MADIS netcdf file in METv3.1
From: Paul Oldenburg
Time: Thu May 31 13:37:32 2012
Xiaoxi,
If you are using MET version 3.1 or later, you can use the madis2nc
tool to convert observations from MADIS NetCDF
format to the point observation NetCDF format recognized by MET tools.
The madis2nc tool currently supports only the
observation types raob and metar. You can see how to run madis2nc by
calling the executable with no arguments. It
should have been built during the MET build process:
$ $MET_BASE/bin/madis2nc
Usage: madis2nc
madis_file
out_file
[-type str]
[-qc_dd list]
[-lvl_dim list]
[-rec_beg n]
[-rec_end n]
[-log file]
[-v level]
where "madis_file" is the MADIS NetCDF point observation
file (required).
"out_file" is the output NetCDF file (required).
"-type str" specifies the type of MADIS observations
(metar or raob).
"-qc_dd list" specifies a comma-separated list of QC
flag values to be accepted (Z,C,S,V,X,Q,K,G,B)
(optional).
"-lvl_dim list" specifies a comma-separated list of
vertical level dimensions to be processed. (optional).
"-rec_beg n" specifies the index of the first MADIS
record to process, zero-based (optional).
"-rec_end n" specifies the index of the last MADIS
record to process, zero-based (optional).
"-log file" outputs log messages to the specified
file (optional).
"-v level" overrides the default level of logging (2)
(optional).
There are plans in future releases of MET to support more MADIS
observation types, so please let us know if you are
interested in using a type other than raob or metar. If you have any
questions, please let me know.
Thanks,
Paul
On 05/31/2012 01:23 PM, Xiaoxi Zhu via RT wrote:
>
> Thu May 31 13:23:23 2012: Request 56698 was acted upon.
> Transaction: Ticket created by xiaoxizhu.thu at gmail.com
> Queue: met_help
> Subject: about reading MADIS netcdf file in METv3.1
> Owner: Nobody
> Requestors: xiaoxizhu.thu at gmail.com
> Status: new
> Ticket<URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=56698>
>
>
> Hello,
>
> I am now using MADIS observation in netcdf to do the comparison
between
> wrfoutput and observation.
>
> However, I think that MADIS netcdf format may not be injested by MET
and I
> am not quite sure how to use it. I searched the internet and could
not find
> the right solution. Could you give me some suggestions about this (
how to
> convert it into the format that Met can read)?
>
> Thanks a lot and best wishes!
>
> Xiaoxi Zhu
>
> Stony Brook University
------------------------------------------------
Subject: about reading MADIS netcdf file in METv3.1
From: Xiaoxi Zhu
Time: Thu May 31 14:52:05 2012
Hi, Paul,
Thanks a lot for your reply.
Rightnow, I am interested in using MADIS ACARS dataset.
Do you know any other tools that can convert ACARS data?
Otherwise, after extracting, I may compare and match the latitude,
longitude and altitude of the two data sets manually.
Thanks a lot and best!
Xiaoxi
On Thu, May 31, 2012 at 3:37 PM, Paul Oldenburg via RT
<met_help at ucar.edu>wrote:
> Xiaoxi,
>
> If you are using MET version 3.1 or later, you can use the madis2nc
tool
> to convert observations from MADIS NetCDF
> format to the point observation NetCDF format recognized by MET
tools.
> The madis2nc tool currently supports only the
> observation types raob and metar. You can see how to run madis2nc
by
> calling the executable with no arguments. It
> should have been built during the MET build process:
>
> $ $MET_BASE/bin/madis2nc
>
> Usage: madis2nc
> madis_file
> out_file
> [-type str]
> [-qc_dd list]
> [-lvl_dim list]
> [-rec_beg n]
> [-rec_end n]
> [-log file]
> [-v level]
>
> where "madis_file" is the MADIS NetCDF point observation
file
> (required).
> "out_file" is the output NetCDF file (required).
> "-type str" specifies the type of MADIS observations
> (metar or raob).
> "-qc_dd list" specifies a comma-separated list of QC
flag
> values to be accepted (Z,C,S,V,X,Q,K,G,B)
> (optional).
> "-lvl_dim list" specifies a comma-separated list of
> vertical level dimensions to be processed. (optional).
> "-rec_beg n" specifies the index of the first MADIS
record
> to process, zero-based (optional).
> "-rec_end n" specifies the index of the last MADIS
record
> to process, zero-based (optional).
> "-log file" outputs log messages to the specified
file
> (optional).
> "-v level" overrides the default level of logging
(2)
> (optional).
>
>
> There are plans in future releases of MET to support more MADIS
> observation types, so please let us know if you are
> interested in using a type other than raob or metar. If you have
any
> questions, please let me know.
>
> Thanks,
>
> Paul
>
>
> On 05/31/2012 01:23 PM, Xiaoxi Zhu via RT wrote:
> >
> > Thu May 31 13:23:23 2012: Request 56698 was acted upon.
> > Transaction: Ticket created by xiaoxizhu.thu at gmail.com
> > Queue: met_help
> > Subject: about reading MADIS netcdf file in METv3.1
> > Owner: Nobody
> > Requestors: xiaoxizhu.thu at gmail.com
> > Status: new
> > Ticket<URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=56698>
> >
> >
> > Hello,
> >
> > I am now using MADIS observation in netcdf to do the comparison
between
> > wrfoutput and observation.
> >
> > However, I think that MADIS netcdf format may not be injested by
MET and
> I
> > am not quite sure how to use it. I searched the internet and could
not
> find
> > the right solution. Could you give me some suggestions about this
( how
> to
> > convert it into the format that Met can read)?
> >
> > Thanks a lot and best wishes!
> >
> > Xiaoxi Zhu
> >
> > Stony Brook University
>
>
>
------------------------------------------------
Subject: Re: [rt.rap.ucar.edu #56698] about reading MADIS netcdf file in METv3.1
From: Paul Oldenburg
Time: Thu May 31 15:39:25 2012
Xiaoxi,
You can use the MET tool ascii2nc to convert a formatted text file to
the NetCDF format read by MET. That would require
the following steps:
1. Dump the points in the MADIS NetCDF file to a text file using the
ncdump utility
2. Reformat the text file to the format described in the MET User's
Guide p3-13
3. Convert the formatted text file to a point data NetCDF file using
ascii2nc
This approach would take some work, but it should not be too
difficult. I will take note of your use of ACARS data for
future work on the MET tool madis2nc. Please let me know if you have
any questions.
Thanks,
Paul
On 05/31/2012 02:52 PM, Xiaoxi Zhu via RT wrote:
>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=56698>
>
> Hi, Paul,
>
> Thanks a lot for your reply.
>
> Rightnow, I am interested in using MADIS ACARS dataset.
>
> Do you know any other tools that can convert ACARS data?
>
> Otherwise, after extracting, I may compare and match the latitude,
> longitude and altitude of the two data sets manually.
>
> Thanks a lot and best!
>
> Xiaoxi
>
> On Thu, May 31, 2012 at 3:37 PM, Paul Oldenburg via
RT<met_help at ucar.edu>wrote:
>
>> Xiaoxi,
>>
>> If you are using MET version 3.1 or later, you can use the madis2nc
tool
>> to convert observations from MADIS NetCDF
>> format to the point observation NetCDF format recognized by MET
tools.
>> The madis2nc tool currently supports only the
>> observation types raob and metar. You can see how to run madis2nc
by
>> calling the executable with no arguments. It
>> should have been built during the MET build process:
>>
>> $ $MET_BASE/bin/madis2nc
>>
>> Usage: madis2nc
>> madis_file
>> out_file
>> [-type str]
>> [-qc_dd list]
>> [-lvl_dim list]
>> [-rec_beg n]
>> [-rec_end n]
>> [-log file]
>> [-v level]
>>
>> where "madis_file" is the MADIS NetCDF point observation
file
>> (required).
>> "out_file" is the output NetCDF file (required).
>> "-type str" specifies the type of MADIS
observations
>> (metar or raob).
>> "-qc_dd list" specifies a comma-separated list of
QC flag
>> values to be accepted (Z,C,S,V,X,Q,K,G,B)
>> (optional).
>> "-lvl_dim list" specifies a comma-separated list
of
>> vertical level dimensions to be processed. (optional).
>> "-rec_beg n" specifies the index of the first
MADIS record
>> to process, zero-based (optional).
>> "-rec_end n" specifies the index of the last MADIS
record
>> to process, zero-based (optional).
>> "-log file" outputs log messages to the specified
file
>> (optional).
>> "-v level" overrides the default level of logging
(2)
>> (optional).
>>
>>
>> There are plans in future releases of MET to support more MADIS
>> observation types, so please let us know if you are
>> interested in using a type other than raob or metar. If you have
any
>> questions, please let me know.
>>
>> Thanks,
>>
>> Paul
>>
>>
>> On 05/31/2012 01:23 PM, Xiaoxi Zhu via RT wrote:
>>>
>>> Thu May 31 13:23:23 2012: Request 56698 was acted upon.
>>> Transaction: Ticket created by xiaoxizhu.thu at gmail.com
>>> Queue: met_help
>>> Subject: about reading MADIS netcdf file in METv3.1
>>> Owner: Nobody
>>> Requestors: xiaoxizhu.thu at gmail.com
>>> Status: new
>>> Ticket<URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=56698>
>>>
>>>
>>> Hello,
>>>
>>> I am now using MADIS observation in netcdf to do the comparison
between
>>> wrfoutput and observation.
>>>
>>> However, I think that MADIS netcdf format may not be injested by
MET and
>> I
>>> am not quite sure how to use it. I searched the internet and could
not
>> find
>>> the right solution. Could you give me some suggestions about this
( how
>> to
>>> convert it into the format that Met can read)?
>>>
>>> Thanks a lot and best wishes!
>>>
>>> Xiaoxi Zhu
>>>
>>> Stony Brook University
>>
>>
>>
------------------------------------------------
More information about the Met_help
mailing list