On Friday, September 21, 2012 6:11:53 PM UTC-4, Eric Greenwell wrote:
There are $60-$100 USB temperature and

humidity recorders that could easily carried (a few oz.), downloaded to

a PC after landing, then the file emailed to you.



Here are some examples:



http://www.thermoworks.com/products/...b_loggers.html



The trick is selecting one with a proper response time to get an OK

lapse rate. The one I have is about a minute - too slow for a climbing

aircraft measurement - but I saw one of 20 seconds (probably OK for a

500fpm climb rate). That would give a decent lapse rate.



--

Eric Greenwell - Washington State, USA (change ".netto" to ".us" to

email me)

Interesting. Aside from the morning sounding, it would be very interesting to gather data for after-the-fact comparison of model forecast sounding vs.. actual. These don't look perfect (the accuracy is a little coarser than I'd like), but I could see fixing one of these under the wing of our club Grob and doing some interesting studies. My suspicion is that many of the misses where we are (NJ/PA area) have less to do with the basic atmospheric lapse rate and more to do with getting the surface dewpoints and amount of surface heating wrong, but this would be a good way to test that out.