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raw format of the solar sensor

Posted: Sat Nov 13, 2010 8:19 pm
by YJB
I'm finishing setting up my Vantage prd with Solar sensor. In order to support this "new" sensor type in mysql I will need to create another table. To make sure that I'm using the righ field types I was looking at the meteohub manual to determine the raw fields:

Appendix C: Format of Raw Data
solar sol# radiation [W/qm]

So, if I read this correctly there will be only one data field, not sure what the maximum size will be, but that's another question.

Looking at the raw data I see 2 data fields:
20101113180133 sol4 0 4
20101113180235 sol4 0 4
20101113180337 sol4 0 5
20101113180438 sol4 0 5
20101113180539 sol4 0 5
20101113180641 sol4 0 5
20101113180743 sol4 0 5

Can somebody explain both fields to me?

Thanks!

Re: raw format of the solar sensor

Posted: Sat Nov 13, 2010 9:27 pm
by admin
The last number is evotranspiration. It is only there if you have a davis vantage weather station.

Re: raw format of the solar sensor

Posted: Sat Nov 13, 2010 9:33 pm
by YJB
Thanks Boris for the explanation. Can you add that to the manual one of these days?

<Edit>
I've actually looked at the protocol manual and it seems that this is the following field:
Day ET - this value is sent as the 1000th of an inch.

Would it make sense to convert this to metric, since most of the values reported by MH are metric
</Edit>

Next question (you know me by know ;-) ):

Why is the evotranspiration not shown when querying meteohub?

http://meteohub/meteolog.cgi?mode=data& ... sensor=sol

20101113180133 sol4 0.0
20101113180235 sol4 0.0
20101113180337 sol4 0.0
20101113180438 sol4 0.0
20101113180539 sol4 0.0
20101113180641 sol4 0.0
20101113180743 sol4 0.0