Are these data spikes?

freedem · Post by **freedem** » Mon 03 Sep 2012 11:33 pm

Please see these images comparing my WX to two airports within a 15 mile radius, one of the airports is an international hub. My data (E0911) sems to be spikey... Is my interpretation correct? If so, how do I fix it on my FO?

Thanks in advance!

Post by **steve** » Tue 04 Sep 2012 6:46 am

I can't see anything wrong? You certainly don't have any spikes. Your temperature is perhaps a little on the high side, particularly during the daytime - an effect of the sun, perhaps.

mcrossley · Post by **mcrossley** » Tue 04 Sep 2012 8:29 am

I think it is just a resolution thing. The airports only report the pressure to the nearest whole unit of hPa, the FO to 0.1 hPa. At 0.1 hPa resolution you will see the value varying a little around the general trend.

freedem · Post by **freedem** » Tue 04 Sep 2012 10:56 am

Thanks. I was wondering what was meant by "spikes".

Post by **steve** » Tue 04 Sep 2012 11:06 am

freedem wrote:I was wondering what was meant by "spikes".

In the context of Fine Offset stations, it's where a reading suddenly changes by an impossibly large amount, and then immediately back again to normal levels, e.g. a one-off wind speed of 70 mph on a relatively calm day.

Cumulus Support

Are these data spikes?

Are these data spikes?

Re: Are these data spikes?

Re: Are these data spikes?

Re: Are these data spikes?

Re: Are these data spikes?