[wxqc] Re: Weather data quality report for 2005-04-04

Alan Batie alan at batie.org
Mon Apr 4 22:39:06 EDT 2005


Weather Quality wrote:

>    DATE     UTC      SITE  *   ALT    * POT TEMP *  DEW PNT *    DD    *    FF    
>                            *   (MB)   *  (DEG F) *  (DEG F) *   (DEG)  *   (KNT)  
> 04-APR-2005 Errs    CW2408 *          *   1/85   *          *   0/85   *   0/85   
> 
> Note that times are in UTC. The values displayed are  'Observed (error)'
> The error value is 'analysis - observed'.

Could someone fix this script so the description matches the actual 
output: there is nothing in a format of "xxx (yyy)", nor "xxx - yyy" 
(though I think that is an arithmetic statement, not a format).  If I 
remember right, what this is really saying is that there was 1 error out 
of 85 reports in the Pot Temp today and no other errors?

Actually, as I look through several of these, how about this to replace 
that first paragraph:

Explanation:

Date: Date of the report.
UTC:  Universal Coordinated Time (Greenwich Mean Time) of the
       observation.  See below if the value is a word instead of
       a time - these entries are special entries with summary
       information.
Site: Station id of the reporting weather station.
Alt:  Barometer data in millibars.
Pot Temp: Temperature in degrees Fahrenheit
Dew Pnt: Dew point data in degrees Fahrenheit
DD:   Wind direction in degrees (0=North, 90=East, 180=South, 270=West)
FF:   Wind speed in knots

For normal timestamped entries, the values are in the format of 
"Observed value(estimated error value)".  The estimated error value is 
computed by subtracting the reported value from a value determined from 
statistical analysis of surrounding stations, thus if the reported value 
is higher than the analysis value, the error value will be negative.

If the value in the UTC column is a word, then it is a summary report:

Smry: statistical summary for the day
Week: statistical summary for the week
Mnth: statistical summary for the month

In these cases, the report data is in the format "Mean(Standard 
Deviation)" over the specified period.

Errs: An error count, in the format "# errors/#reports received"
       If this occurs by itself, it is a report for the date listed.
       If it occurs with a statistical summary report, then it is the
       count of errors for the specified summary period.

Graphs:
...

Also, in the last report, the Graphs link didn't have the site value, fwiw..
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