Topic: Newbie taking the Dive

[zackdog]

I have had the VP2 plus for two years now and I would not have a unit without the solar and UV sensors.  It just adds to my morning rituals.  I have to do my CoCoRaHS report, then check for hours of sunshine for previous day, read my electric meter, and check mean temperature for previous day.  Then enter the data into my spread sheet.

My home is all electric and faces about 27° East of South and is mostly glass on that wall.  When I built the house, I was able to install a rebuilt electric meter between the main panel and the sub panel that only supplies power to the electric baseboard heaters.  I read this meter every day at 7:00 am and pm during the winter.  I have one of my VantageVues set so that midnight corresponds to 7:00 am.  This allows me to match the mean temperature to the same time period I read the electric meters.  I also run a manual pellet stove for additional heat.  I have a spread sheet that I keep track of the hours it runs over the same period.  I love being able to see the affect of hours of sunshine has on my heating costs.

Enough already.  I have been called "anal" more times than I can count.

Attached is a copy of the spread sheet for this month.

Mark

[Ian.]

Now that is some fastidious record keeping!

I admire your commitment.

[PaulMy]

Enough already.  I have been called "anal" more times than I can count.

Attached is a copy of the spread sheet for this month.

and I thought I was bad detailed with all my record keeping    but it is great information for whenever you might want to refer to it.
 
Paul

[easyas12]

I was thinking of moving my uv and solar sensors to be along with my anemometer at a remote location away from the rain and temperature sensors..  Any idea of the field of view of these sensors.  In other words, when/where might the anemometer interfere?  With the given that the anemometer will be north of the other sensors.

[dalecoy]

I was thinking of moving my uv and solar sensors to be along with my anemometer at a remote location away from the rain and temperature sensors..  Any idea of the field of view of these sensors.  In other words, when/where might the anemometer interfere?  With the given that the anemometer will be north of the other sensors.

Both are "whole sky" sensors.

[easyas12]

I was thinking of moving my uv and solar sensors to be along with my anemometer at a remote location away from the rain and temperature sensors..  Any idea of the field of view of these sensors.  In other words, when/where might the anemometer interfere?  With the given that the anemometer will be north of the other sensors.

Both are "whole sky" sensors.

So they must be above (higher) than the anemometer?

[dalecoy]

Both are "whole sky" sensors.

So they must be above (higher) than the anemometer?

I didn't say that.  You asked what the field of view is.  The usual mounting used by Davis puts he top of the sensors at about the level of the rim of the rain bucket, on the North side of the assembly, with the anemometer just a bit higher and farther on the North side.  Take a look at a picture on the Davisnet site.

Having said that, there is not much shadowing from an anemometer mounted North of those sensors - in particular for cloudless conditions, because the source (the sun) will be South.  (Northern hemisphere).  There would be some shadowing if it's cloudy. 

So, it would depend on how "anal" you are about absolute "accuracy".

[dalecoy]

Having said that, there is not much shadowing from an anemometer mounted North of those sensors - in particular for cloudless conditions, because the source (the sun) will be South.  (Northern hemisphere).  There would be some shadowing if it's cloudy. 

By the way, I don't think that "shadowing" is the correct word in this context.  And it's probably not "occultation".  Can somebody supply the correct word, please?

[Old Tele man]

I have had the VP2 plus for two years now and I would not have a unit without the solar and UV sensors.  It just adds to my morning rituals.  I have to do my CoCoRaHS report, then check for hours of sunshine for previous day, read my electric meter, and check mean temperature for previous day.  Then enter the data into my spread sheet.

My home is all electric and faces about 27° East of South and is mostly glass on that wall.  When I built the house, I was able to install a rebuilt electric meter between the main panel and the sub panel that only supplies power to the electric baseboard heaters.  I read this meter every day at 7:00 am and pm during the winter.  I have one of my VantageVues set so that midnight corresponds to 7:00 am.  This allows me to match the mean temperature to the same time period I read the electric meters.  I also run a manual pellet stove for additional heat.  I have a spread sheet that I keep track of the hours it runs over the same period.  I love being able to see the affect of hours of sunshine has on my heating costs.

Enough already.  I have been called "anal" more times than I can count.

Attached is a copy of the spread sheet for this month.

Mark

I do something *similar* but only using daily (24 hr @ noon) power (kWhr) readings (my earlier post):

http://www.wxforum.net/index.php?topic=26885.msg258978#msg258978

[W3DRM]

Having said that, there is not much shadowing from an anemometer mounted North of those sensors - in particular for cloudless conditions, because the source (the sun) will be South.  (Northern hemisphere).  There would be some shadowing if it's cloudy. 

By the way, I don't think that "shadowing" is the correct word in this context.  And it's probably not "occultation".  Can somebody supply the correct word, please?

How about cloud albedo?

• https://en.wikipedia.org/wiki/Albedo

[dalecoy]

How about cloud albedo?

Related, but ... we're talking about the effect of an object that is above a solar or UV sensor, but not in the direct path between the sun and the sensor.