Holiday

Monday, January 27, 2014

Re: Temperature error by CWOP is unfounded as APRSWXNET QC is OK

On 1/27/14, 3:44 AM, guy perea wrote:
> Temperature
>
>
> 24 hours Day time Night time
> Average temperature error 0.1 °F -3.2 °F 2.0 °F
> Error standard deviation 3.3 °F 2.2 °F 2.0 °F
> Worst average temperature error -4.0 °F -4.7 °F 4.8 °F
> Worst standard deviation 4.6 °F 3.0 °F 2.4 °F
>
> above is CWOP QC
> below is APRSWXNET QC
> Means your Quality Control is contrary to each other and it acts like
> my station E4078 is mixed with other error.
>
Guy

There are multiple ways of looking at the data -- what the analysis
shows is that your read warmer during the day than expected and colder
during the night. This is symptomatic of solar heating during the day.
Another possibility is poor siting of the temperature sensor.

If you could add some pictures of your setup to the system, then we
might be able to help you out.

Philip

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