Hmm, perhaps I just didn't wait long enough then. My values definitely diverged, so I removed the correction so avoid having to correct a lot of data. Does wunderground calculate an intermediate value from uncorrected values sent via rapidfire, which then get replaced once per hour by the database values? Or is the 60-minute sum sent with each update? If the latter, perhaps it was just a difference in wunderground's rounding (or lack thereof).
On Friday, January 13, 2017 at 6:40:17 PM UTC-8, Tom Keffer wrote: > > The value sent to wunderground is calculated directly from the database. > It's the sum of all rain that fell during the last 60 minutes. So, if > you're happy with the values of 'rain' in the database, then you should > be getting the same at wunderground. > > -tk > > On Fri, Jan 13, 2017 at 6:21 PM, J <[email protected] <javascript:>> > wrote: > >> Hi, >> >> I'm trying to apply some corrections to my rain data but am running into >> an issue with getting Wunderground data to match. >> >> I want to adjust my rain corrections based on wind data -- I'm >> compensating for undercatch during high winds due to my rain bucket's >> higher than typical elevation above ground. I'm using a Davis VantagePro2. >> >> Making corrections to rain and rainRate using windGust works great in >> weewx. Each 0.01" tip is adjusted by current wind conditions. However, >> Wunderground values are uncorrected. From some reading of past threads, it >> sounds like Wunderground data may instead use dayRain and hourRain values >> directly from archive records, instead of simply pushing up the weewx >> values. I run into the issue that if I try to adjust dayRain and/or >> hourRain based on wind from the archive records, not only will the totals >> differ because of wind values from different periods, but it seems like the >> entire day total would be repeatedly scaled up and down based on whatever >> the last wind reading was. >> >> Is there a way to have the data sent to Wunderground based on the totals >> stored by weewx? Or otherwise keep them synced in a sane manner? >> >> Thanks! >> Jesse >> >> P.S. I'd also love to be able to use windDirection and rainRate as >> factors in the corrections, but that's probably overly ambitious without >> support for conditionals in corrections. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "weewx-user" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
