Daily: 25 July

Scattered clouds throughout the day, with the usual afternoon winds.

Onsite: Justin, Gary, Delia, Matt, and a lot of help from Chenning!

Everything looked good this morning, except for GPS.ttb.  Not sure why it stopped getting satellites again.

Visited with Mark at the FBO who stated that the space between the runways was actually preferable to our original location since the patterns are flown to the outside of the runway locations.  Thus, we immediately set out to move tt.  10:00-11:30 lowered and packed up tt.  11:30-12:00 drove it to its new location. 12:00-13:30 did about half of the set up.  This took a while since one of the pins that lock an outrigger leg became unscrewed in a way that the teardown crew would not have been able to retract it.  We ended up having 7 of us pull the entire outrigger leg out (both sections) so we could rotate it to let gravity help release the pin.  It worked!  After this, we took a lunch break, then returned from 14:30-16:00 to level, finish hooking up, install the Ott, and raise the tower.  It seemed not to go up quite as far before the guy wires tightened up, so we let the guy wire tensions dictate the height.  To the best of my ability with a boy-scout compass, the trailer is oriented at 248 degrees magnetic, 260 degrees true, just like it was at the old location.  (Now that Matt is here, we'll soon begin the full instrument survey with the Leica.)

Unfortunately, from the plot below with the first amount of data (from the good southerly wind direction), we still don't have perfect vertical profiles.  There still is a jump between the 4m and 7m observations.  According to our plan, this suggests that we should either move the t0 lower profile sensors to tt or to a new tower even closer to tt.  I was really hoping this wouldn't be necessary.  I suggest we wait for at least a full day's of data to come in before making this decision.