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Old May 15th 07, 05:26 PM posted to uk.sci.weather
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Default Brazil synops anomaly

I just found an anomaly with the coding in the Brazil synop coding.
Basically it effects the minimum temperatures I've been reporting. I was
just looking a bit deeper into Sao Paulo (83780), Rio (83746) and
Brazilia (83378), where for some reason I noticed that I was not picking
up the minimum readings. There are there but I was not picking them up
correctly on my spreadsheet.

However, the many locations that had minimums reported just appeared to
be to low to be true! When I looked into it a little closer I noticed
that an anomaly appeared in the coding at 00:00z hours e.g.

82106, Sao Gabriel Da Cachoeira (Brazil)

200705151200 AAXX 15124 82106 22198 80000 10248 20245 3//// 4//// 8563/
333 20223 5//// 60074=
200705150000 AAXX 15004 82106 21195 80000 10241 20235 3//// 4//// 70362
886//
333 10320 29094 55044 5//// 60071=
200705141800 AAXX 14184 82106 21197 83204 10282 20254 3//// 4//// 70362
886//
333 5//// 60021=
200705141200 AAXX 14124 82106 21198 80000 10244 20241 3//// 4//// 70362
8563/
333 20214 5//// 60184=
200705140000 AAXX 14004 82106 32197 81806 10267 20244 3//// 4//// 887//
333 10326 29091 55050 5////=

The minimum temperatures are reported at 12:00z, but at 00:00z another
2**** group was being picked up as a minimum, 29094 was decoding as
9.4c, which I think you agree would be unlikely in Brazil after the
previous daytime maximum had been 32.6c.

As of todays updates for the 'Americas' the correct minimum
temperature(s) have been applied.

I wonder how many more I've missed after all this time?

Btw, does anyone happen to know what the 29094, in this instance, stand for?
--
Keith (Southend)
http://www.southendweather.net
e-mail: kreh at southendweather dot net

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Old May 15th 07, 07:24 PM posted to uk.sci.weather
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Default Brazil synops anomaly

On May 15, 6:26�pm, "Keith (Southend)"
wrote:
I just found an anomaly with the coding in the Brazil synop coding.
Basically it effects the minimum temperatures I've been reporting. I was
just looking a bit deeper into Sao Paulo (83780), Rio (83746) and
Brazilia (83378), where for some reason I noticed that I was not picking
up the minimum readings. There are there but I was not picking them up
correctly on my spreadsheet.

However, the many locations that had minimums reported just appeared to
be to low to be true! When I looked into it a little closer I noticed
that an anomaly appeared in the coding at 00:00z hours e.g.

82106, Sao Gabriel Da Cachoeira (Brazil)

200705151200 AAXX 15124 82106 22198 80000 10248 20245 3//// 4//// 8563/
* * * * * * * * * * 333 20223 5//// 60074=
200705150000 AAXX 15004 82106 21195 80000 10241 20235 3//// 4//// 70362
886//
* * * * * * * * * * 333 10320 29094 55044 5//// 60071=
200705141800 AAXX 14184 82106 21197 83204 10282 20254 3//// 4//// 70362
886//
* * * * * * * * * * 333 5//// 60021=
200705141200 AAXX 14124 82106 21198 80000 10244 20241 3//// 4//// 70362
8563/
* * * * * * * * * * 333 20214 5//// 60184=
200705140000 AAXX 14004 82106 32197 81806 10267 20244 3//// 4//// 887//
* * * * * * * * * * 333 10326 29091 55050 5////=

The minimum temperatures are reported at 12:00z, but at 00:00z another
2**** group was being picked up as a minimum, 29094 was decoding as
9.4c, which I think you agree would be unlikely in Brazil after the
previous daytime maximum had been 32.6c.

As of todays updates for the 'Americas' the correct minimum
temperature(s) have been applied.

I wonder how many more I've missed after all this time?

Btw, does anyone happen to know what the 29094, in this instance, stand for?
--
Keith (Southend)http://www.southendweather.net
e-mail: kreh at southendweather dot net


Me no spik portuga.

Any chance these are the results of an el ninja?

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Old June 15th 07, 11:13 AM posted to uk.sci.weather
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Default Brazil synops anomaly

On 15 Mai, 19:26, "Keith (Southend)"
wrote:
200705150000 AAXX 15004 82106 21195 80000 10241 20235 3//// 4//// 70362
886// 333 10320 29094 55044 5//// 60071=


Btw, does anyone happen to know what the 29094, in this instance, stand for?


In section 1 it would be 94% relative humidity, but this is section 3.

The WMO Manual on Codes says that if the dew-point temperature is
unavailable, the group 2snTdTdTd may be replaced by 29UUU (UUU =
000..100). This is mentioned in the description of section 1, only. In
the Regional Codes manual for region III it says 2snTdTdTd in section
3 is the minimum night temperature. I could find no description
specific to Brazil. Also, 29UUU is not mentioned.

Maybe they use it for section 3, too. But I have no idea which meaning
the value has. Minimum night humidity?



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