[Met_help] [rt.rap.ucar.edu #62497] History for a question about ASCII2NC

[John Halley Gotway via RT]

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  Initial Request
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Dear sir or madam,
  I have a question about "ascii2nc" tool.
  I am trying to convert some near surface point observation to netcdf format, but don't know how to write it in the form ASCII2NC can process.
  Take 2 meter temperature above the ground as example, how should I set column 1, 8 and 9? 1=ADPSFC, 8 = station pressure and 9 = station Elevation + 2?

Message_Type
Station_ID
Valid_Time in YYYYMMDD_HHMMSS format
Lat in degrees North
Lon in degrees East
Elevation in meters above sea level
Grib_Code corresponding to this observation type
Level as the pressure level in hPa or accumulation interval in hours
Height in meters above sea level or above ground level
Observation_Value in the units prescribed for the grib code
  And where can I find a detail explanation about these Message Types?

  Please help, thank you!

Jiangshan





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  Complete Ticket History
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Subject: Re: [rt.rap.ucar.edu #62497] a question about ASCII2NC
From: John Halley Gotway
Time: Mon Aug 05 10:47:57 2013

Jiangshan,

For surface observations, yes, set column 1 to "ADPSFC".
When verifying against surface observations, columns 8 and 9 really
are not used.  So you can set them both to the bad data value of
-9999.

Thanks,
John

On 08/05/2013 08:20 AM, zhujiangshan via RT wrote:
>
> Mon Aug 05 08:20:21 2013: Request 62497 was acted upon.
> Transaction: Ticket created by zhujiangshan at mail.iap.ac.cn
>         Queue: met_help
>       Subject: a question about ASCII2NC
>         Owner: Nobody
>    Requestors: zhujiangshan at mail.iap.ac.cn
>        Status: new
>   Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=62497 >
>
>
> Dear sir or madam,
>    I have a question about "ascii2nc" tool.
>    I am trying to convert some near surface point observation to
netcdf format, but don't know how to write it in the form ASCII2NC can
process.
>    Take 2 meter temperature above the ground as example, how should
I set column 1, 8 and 9? 1=ADPSFC, 8 = station pressure and 9 =
station Elevation + 2?
>
> Message_Type
> Station_ID
> Valid_Time in YYYYMMDD_HHMMSS format
> Lat in degrees North
> Lon in degrees East
> Elevation in meters above sea level
> Grib_Code corresponding to this observation type
> Level as the pressure level in hPa or accumulation interval in hours
> Height in meters above sea level or above ground level
> Observation_Value in the units prescribed for the grib code
>    And where can I find a detail explanation about these Message
Types?
>
>    Please help, thank you!
>
> Jiangshan
>
>
>

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