Station placement contradiction

Matt.j5b · **Posted:** Tue Dec 06, 2011 10:23 am

Hi
Just to add, I am in a suburban environment, and to get accurate readings I could not achieve this at one location. Instead I use 2 sensors and combine the min and max figures using the correct ones to close to ideal min and max figures for each day. One sensor reads too mild by night as its too protected but is correct during the day, with the other sensor more exposed on the north side of the house and reads overnight figures better but wrong for daytime with the heat of day ( with too high temp). For me that solves the problem siting my sensor in a good spot. I don't have any trouble siting my wind sensor and rain sensor on the top of a greenhouse as its virtually at the roofline and almost unobstructed from good airflow.

hectic · **Posted:** Wed Dec 14, 2011 11:26 pm

This is a hard one.
My garden is about 80 feet long and from the top of the garden to the bottom i get a temperature difference of approx 0.7 celcius. Sometimes the measurements are the same.
Now the temp gauge at the bottom of the garden always seems to be pretty accurate when it comes to frosts and comparing with other stations locally. Both sensors are the same hight as each other and both are over grass. So i am guessing that my garden has its own micro climate. I personally think that in general most of our readings are accurate to the positioning of our gauges but will never always be the same as the met office or other places because of the micro climates we have in various degrees around our stations.
I believe that your sensor should be approx 1200mm above the ground , which is about four feet.

Matt.j5b · **Posted:** Thu Dec 15, 2011 12:32 am

Hi
You will generally get frost in hollows and low spots where the temperature is lower. Your microclimate would affect the readings if not just a open area. As you said the sensor should be 1.2 m and over grass.

	It is currently Sat May 18, 2013 9:10 am
Please click here before posting. Help me to help you!
Useful Links: Cumulus FAQ • Enhancement requests • Wiki (documentation)
Please put your approximate location into your profile
Add your web site to the Cumulus user map
Vantage Pro2 users with firmware 3.00 should upgrade to fw 3.12 and Cumulus 1.9.4
Latest Cumulus release v1.9.3 (build 1059) - Feb 09 2013 Latest Cumulus beta v1.9.4 build 1076 - May 12 2013 --> Latest Cumulus Realtime v1.0.0.5 - Sep 05 2009

Sandaysoft

Station placement contradiction

Who is online