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20051012: Problem with dclsfc with WWMO?
- Subject: 20051012: Problem with dclsfc with WWMO?
- Date: 12 Oct 2005 16:27:55 -0600
Christian,
The WMO synoptic code uses different tables for manned and unmanned
reports (automated 4680 and manned 4677). The WWMO GEMPAK parameter is
the manned table 4677 value (or equivalent converted from the 4680
value).
The decoder converts the automated weather code to the manned weather
code in $GEMPAK/source/gemlib/pr/prwmao.f. In that routine, you will
find that "43" from table 4680 is converted to the equivalent "63"
value for table 4677 for storage in the GEMPAK WWMO parameter.
Steve Chiswell
Unidata User Support
On Tue, 2005-10-11 at 18:48, Christian Pagé wrote:
> Hi everyone,
>
> I noticed maybe a problem in dclsfc. I am using GEMPAK .
>
> By example, the following synop message:
> 71725 17964 00504 10096 20039 39871 40289 53008 60001 743// 333^M^M
> 10157 20034 70005=^M^M
>
> is decoded to:
>
> STN YYMMDD/HHMM PMSL PRES P03D TMPC DWPC SPED
> DRCT GUMS VSBK P03M P06M P09M
> P12M P18M P24M TDXC TDNC T12X
> T12N WWMO PWWM CFRT CFRL CTYL
> CTYM CTYH CLHL CLHM CLHH SSTC
> WPER WHGT MSUN SNOW CBAS SNEW
> P24C PWSP PWDR
> YVO 051012/0000 1028.90 987.10 3008.00 9.60 3.90 2.10
> 50.00 -9999.00 14.00 -9999.00 0.00 -9999.00
> -9999.00 -9999.00 0.50 15.70 3.40 -9999.00
> -9999.00 63.00 -9999.00 0.00 -9999.00 -9999.00
> -9999.00 -9999.00 -9999.00 -9999.00 -9999.00 -9999.00
> -9999.00 -9999.00 -9999.00 -9999.00 9.00 -9999.00
> -9999.00 -9999.00 -9999.00
>
> WWMO is thus 63, but it should be 43!! 743// in the synop code. There
> was indeed no rain (wmo code 63), but only fog (wmo code 43). Is there
> a problem?
>
> --
> Christian Pagé
> UQAM