It's has double-louvers on all four sides and usually has an opening in the bottom as well. The idea is to protect the instruments from the weather while still allowing plenty of exposure to it.
It would be a cool project for someone to hook up the instruments with wifi so that twice-daily readings are automatically taken and sent to the Weather Service.
Funny you mention, I did have a similar project on the back burner. The following were all the measurements that were supposed to be sent back in CSV format :
Lon, lat and elev are longitude, latitude and elevation of course and start, end were UNIX timestamps. I had an idea to have it send data back every 5 minutes to avoid the jet exhaust anomaly problem mentioned in the article. I could safely discard the outliers and store the rest.
Sadly, this never got off the ground as I never had the time to build it.
It's not that hard, CWOP[1] and wview[2] support doing this out of the box. I've got a setup[3] in my parent's place that submits the data regularly to them all the time. That said I'd probably trust this guy more than random weather stations setup by unknown people.
This is exactly how Weather Underground gets lots of it's data. If you select change station you'll see a listing of stations that are not the official observation points for your area.
Also, some of this data can be collected via the APRS amateur radio system.
“Oh, no,” he said. “It’s what you did. In those Depression years, it came to mind once, twice, we’re in debt for the chicken houses and the farmhouse, but no. It’s what you did for your country.”
Part of the problem is being in a location where you can collect accurate data. The setup is very particular. You basically need an open field to do it properly. I would love to do it, but all of my landed is wooded and is a poor location for weather data collection.
There are actually some arguments about the accuracy of the automated data collected from the airports. Mainly stemming from the fact that airports are usually nowhere near the city in which they're collecting data for. There are also some dubious instrument configurations. For example, the setup at Reagan National, which is the official data for Washington, DC, was changed a couple years ago to where there are now rocks under the temperature station instead of grass. This is lead to some analysis that the official readings may be higher than the actual air temperature.
I'm not a volunteer observer, but I am the lead developer on the web app they now use to enter the observation data. The app is a result of the 'paperless' initiative the NWS (and NCDC) has. The person on the other end of his phone call is probably using this web app I work on.
It's has double-louvers on all four sides and usually has an opening in the bottom as well. The idea is to protect the instruments from the weather while still allowing plenty of exposure to it.