A thought, hopefully not misplaced. As regards not messing with data, it's the correct approach; but I believe there's wriggle room in the case of rain.
If it's a momentary value such as temperature, pressure, humidity. They are absolute values that are cemented to that moment in time. If it's a value such as rain, while it's still married to the time it was recorded, it's not cemented. It's origin is in the past - a bucket starts filling well before it tips, and depending on the size of the bucket, the time it takes to tip will vary (eg: Two gauges at the same location, a 0.5mm bucket will tip well after a 0.25mm bucket, yet the rain rate hasn't changed. Which gauge is wrong?) In short: There are already assumptions (compromises) being made about recording a tipping buckets value. For the sake of a short time interval (2 secs) my feeling is that it could be adjusted back to midnight without disturbing its integrity - too much. :-) That's ignoring values like rain rate and loop interval, let alone archive interval. Cheers Glenn rorpi - read only raspberry pi + weewx: now with scripts <https://github.com/glennmckechnie/rorpi-raspberrypi> On 31 May 2017 at 10:16, gjr80 <[email protected]> wrote: > But, say we have a packet that arrives at 00:00:02. How do we know if it's >> from the previous day? Maybe it is the very first packet of the day? > > > True, maybe we should just not use dayRain (or any other loop aggregates > for that matter), in fact until I read through this issue properly I > thought that day (or longer) aggregates coming from a station were not used > at all. > > 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]. > 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.
