I have spent this morning working through the csv data, the NOAA format reports on your web site and the data on Ecowitt.net. There are a couple of issues going on. First, the bulk of the difference between the Ecowitt.net yearly rainfall (presently showing 824.1mm) and that imported by wee_import (approx 507mm) is due to data inconsistencies on Ecowitt.net. The yearly rainfall value displayed by Ecowitt.net is taken from the yearly rain field (presumably uploaded by the station). If you look through the 2023 tabulated data for the station on Ecowitt.net you will see the yearly rainfall value was non-existent until 6 June when it took on the value 585.1mm, but if you sum the monthly rainfall values from 1 January until 6 June you get something of the order of 254mm (it is impossible to say exactly due to discrepancies between the values in the various Ecowitt.net rain fields). This accounts for some 330mm of the difference. I have also found at least one place where the Ecowitt.net rain data goes backwards (23 February 06:00 monthly rainfall is 5.6mm, the 10:00 entry indicates 0.8mm fell taking the monthly total to 6.6mm, the 14:00 entry shows no rain but the monthly value jumps back to 5.6mm), whilst this may or may not impact the import (it depends on how the import is setup) it begs the question are there other data discrepancies that may impact the import. I haven't yet checked for any other similar discrepancies.
I have also noticed discrepancies in the NOAA format reports. For some reason the 2023 report shows the March rainfall as 100.8mm, whereas the March 2023 report shows a monthly total of 105.6mm. The archive and daily summary tables both have 105.6mm for March, but for some reason the monthly report is off. Ecowitt.net also shows 105.6mm for March. Similarly in October. The October 2023 report shows 28.4mm but the 2023 reports shows October with 27.1mm, the archive and daily summary tables both record 28.4mm. I will have to look at this further, but at present I would be wary of rainfall in the yearly NOAA reports; the monthly reports seem to show the true value. So far I have not been able to fault wee_import. Gary -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/dc17cabc-7722-4a27-ac6b-5f96ec306786n%40googlegroups.com.
