See function evapotranspiration_Metric() <https://github.com/weewx/weewx/blob/f692c801c7a2ad95a402fb944859a2d18a64607a/bin/weewx/wxformulas.py#L776> in the file weewx/wxformulas.py.
On Fri, Apr 28, 2023 at 4:36 PM DR <wxe...@gmail.com> wrote: > Well, darn. I don't have solar radiation on this station yet, but can be > added from prior research when I set it up. > > My mistake, I should have known that. My apologies, but I'll take > education where ever I can find it. > > > Is there a place in the code that specifies the values and how it is > calculated? > > Dale > > > On 4/28/2023 5:09 PM, Tom Keffer wrote: > > To calculate ET you need: > > - Outside temperature > - Humidity > - wind > - solar radiation > > Do you have everything? If any one of them is missing, you'll get a N/A. > > > > On Fri, Apr 28, 2023 at 10:58 AM DR <wxe...@gmail.com> wrote: > >> Perhaps I assumed too much, but my Rainwise IP-100 interface to the >> Rainwise station does not generate ET in hardware. >> >> I found where the hardware, software, or hardware preferred choices are >> in the configuration, and changed 'hardware preferred' to "software". >> >> In my Seasons.skin running WeeWx 4.5.1 for now. After running for more >> than 24 hours, still get ET N/A on that line. >> >> Maybe I can't get ET for this station. It isn't too important, I'm not a >> professional farmer and just like watching that number when it is available. >> >> Is there more to enabling that value beyond just changing the source >> preference line? Dale >> >> The configuration I was referencing was: >> >> [StdWXCalculate] >> [[Calculations]] >> pressure = prefer_hardware >> altimeter = prefer_hardware >> appTemp = prefer_hardware >> barometer = prefer_hardware >> cloudbase = prefer_hardware >> dewpoint = prefer_hardware >> ET = prefer_hardware >> heatindex = prefer_hardware >> humidex = prefer_hardware >> inDewpoint = prefer_hardware >> maxSolarRad = prefer_hardware >> rainRate = prefer_hardware >> windchill = prefer_hardware >> windrun = prefer_hardware >> >> -- >> 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. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/weewx-user/eb9cbe08-3b3d-6e75-3b8d-c83d18d2326c%40gmail.com >> <https://groups.google.com/d/msgid/weewx-user/eb9cbe08-3b3d-6e75-3b8d-c83d18d2326c%40gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- > 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. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/CAPq0zEDSUBpuQed12VraoW%2BW7pkRQKGB%2B9QJU-a1z6DMsfU0mA%40mail.gmail.com > <https://groups.google.com/d/msgid/weewx-user/CAPq0zEDSUBpuQed12VraoW%2BW7pkRQKGB%2B9QJU-a1z6DMsfU0mA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > -- > 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. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/f1edd2a4-8274-62b1-0ed7-93726687d896%40gmail.com > <https://groups.google.com/d/msgid/weewx-user/f1edd2a4-8274-62b1-0ed7-93726687d896%40gmail.com?utm_medium=email&utm_source=footer> > . > -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAPq0zEAE8WAn3SQsm0ZznRLxQ6rDO0ipYXOcTuamyrszc6%3D0xA%40mail.gmail.com.
