windfinder uploader wrong units?

[Jan Valkenier]

I recently installed the windfinder uploader found here:

https://github.com/weewx/weewx/wiki/windfinder

I presume the winddata is uploaded in the wrong units, when i compare the windfinder graphs with weewx graphs. See attached pictures.

It looks as if windfinder gets meter per second, and displays it as being knots.

I noticed that in windfinder.py, there is a transformation of units and it should be in knots , however I don't know if this works correctly.

Could someone shed some light on this?

[mwall]

i do not have an explanation for the behavior, but here is what i know:

the v0.6 windfinder extension for weewx uses the following units for upload:

airtemp: degree_C
winddir: compass_degree
windspeed: knot
gust: knot
pressure: hPa
rain: mm/hr

according to the windfinder web site, the units for wind and gust should be knots:

http://www.windfinder.com/weather-station/add.htm#other

however, there is no specification or documentation for the 'meteobridge' configuration:

http://www.windfinder.com/weather-station/add.htm#meteobridge

which uses this url to upload:

http://www.windfinder.com/wind-cgi/httpload.pl

finally, this is from paul sommer of windfinder.com in june 2014:

> All you have to do is to HTTP-GET the following URL:
>
> http://www.windfinder.com/wind-cgi/httpload.pl?sender_id=<stationID>&password=<PWD>&date=19.5.2011&time=17:13&airtemp=20&windspeed=12&gust=14&winddir=180&pressure=1012&rain=5
>
> You can omit the parameters for values that you don't have (eg. rain)
>
> You have to use local time for date and time, knots for the wind
> and metric units for all the rest; rain in mm/hour.

since the units for 'rain' is 'mm/hr' i assume that 'rain' is actually 'rainRate'

m

[mwall]

On Monday, March 30, 2015 at 6:44:56 AM UTC-4, Jan Valkenier wrote:

Could someone shed some light on this?

there was a bug in the dictionary keys for windspeed (windSpeed) and gust (windGust), so the mps to knots conversion was not applied.

fixed in v0.7 of the windfinder extension.

the meaning of 'rain' in the windfinder url 'specification' is still ambiguous - is it rainfall since last upload?  cumulative rainfall?  rainfall in the past hour?  rainRate?  the units of mm/hr imply the latter, but then what definition of rainRate?

m