Thanks for your responses and please pardon my late reply -- I wanted to wait until some more rain fell to confirm observations and gather more detailed logs.
It appears that the standard Wunderground-PWS archive method posts the corrected values, but Wunderground-RF rapid fire submits a combination of corrected and uncorrected values. I'm unclear on where the uncorrected value is being pulled from. For reference, the uncorrected value (as displayed by Davis console) at the time of the below logs is 0.6 inches. With the weewx corrections it's (rounded up to) 0.7. The discrepancy has persisted and widened as more rain has fallen throughout the day. Wunderground-PWS: both dailyrainin and rainin show the corrected 0.7: Jan 19 04:47:16 weewx[2009]: restx: Ambient: url: http://weatherstation.wunderground.com/weatherstation/updateweatherstation.php?action=updateraw&ID=YYY&PASSWORD=XXX&softwaretype=weewx-3.5.0&windgustmph=3.0&humidity=095&; *dailyrainin=0.07*&winddir=270&tempf=50.8&windspeedmph=1.0&*rainin=0.07* &baromin=29.805&dewptf=49.4&dateutc=2017-01-19%2012%3A47%3A00 Jan 19 04:47:16 weewx[2009]: restx: Wunderground-PWS: Published record 2017-01-19 04:47:00 PST (1484830020) Wunderground-RF rapid fire: dailyrainin has the uncorrected value (0.6), but rainin uses the corrected one (0.7). WU appears to use the dailyrainin value for it's displayed precipitation totals. Log: Jan 19 04:47:16 weewx[2009]: restx: Ambient: url: http://weatherstation.wunderground.com/weatherstation/updateweatherstation.php?action=updateraw&ID=YYY&PASSWORD=XXX&softwaretype=weewx-3.5.0&windgustmph=5.0&humidity=095&; *dailyrainin=0.06*&winddir=247&tempf=50.8&windspeedmph=5.0&rtfreq=2.5& *rainin=0.07* &baromin=29.807&dewptf=49.4&dateutc=2017-01-19%2012%3A47%3A16&realtime=1 If I enable both methods, I can see the displayed value on WU bounce down to 0.6 after the Wundergrond-PWS submission, then back to 0.7 with the next Wunderground-RF submission. This bouncing back and forth is also reflected occasionally in the WU graphs. mwall wrote: > jesse, you can use conditionals in corrections: [...] each correction > must be a single line of python Awesome, thank you! - jesse 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 <w...@vmdaemon.org <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 weewx-user+...@googlegroups.com <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 weewx-user+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
