CASES99: Sonics Messages: 20 Entries..

The following is pieced together from logbook entries and my memory:

When I arrived, one UW didn't remember rotation coefficients.  I reloaded
them.  I think we then put this on stn4.

?We also had problems with an ATI which magically fixed itself when I
worked on it?

9/20:
1	NUW5
2	NUW7
3	NUW3
4	ATI3
5	NUW6
6	ATI2

9/25:
10m:	0505
20m:	0202
40m:	0504
6:      0302
spare:  NUW4?

1	2	3	4	5	6	10	20	40	spare
NUW5	NUW7	NUW3	0303?	NUW6	0302	0505	0202	0504	NUW4

9/27: 
- 40m (0504) spiking, removed
- stn4 ATI (3) swapped with spare uw (NUW4?) to have spare ATI (3)

1	2	3	4	5	6	10	20	40	spare
NUW5	NUW7	NUW3	NUW4	NUW6	0302	0505	0202	-	0303
									0504s

~9/29:
- 40m replaced with spare () [must have required 3-way swap with 20m due to hotwire mounts?]

1	2	3	4	5	6	10	20	40	spare
NUW5	NUW7	NUW3	NUW4	NUW6	0302	0505	0303	0202	0504s

10/10: 
- 10m (0505) spiking, replaced with old 40m (0504)
- 20m () was at 10 samp/s, changed to 20 samp/s

1	2	3	4	5	6	10	20	40	spare
NUW5	NUW7	NUW3	NUW4	NUW6	0302	0504s	0303	0202	0505s


10/14: 20m dead (0303), replaced with sonic from stn6 (0302)

1	2	3	4	5	6	10	20	40	spare
NUW5	NUW7	NUW3	NUW4	NUW6	-	0504s	0302	0202	0505s
									0303d

10/15: 
- Took bad sonic (0303) back to Boulder, 
- Found problem with old 10m (0505) was that it was programmed 
  like a UW array.  Fixed.

1	2	3	4	5	6	10	20	40	spare
NUW5	NUW7	NUW3	NUW4	NUW6	-	0504s 	0302	0202	0505
									0303[dB]

10/16: blown cap and fuse in 0303? fixed by Gary

1	2	3	4	5	6	10	20	40	spare
NUW5	NUW7	NUW3	NUW4	NUW6	-	0504s 	0302	0202	0505
									0303[B]

10/17:
- 20m (0302) noisy v, replaced by 0505
- old 20m (0302) with noisy v moved back to stn6

1	2	3	4	5	6	10	20	40	spare
NUW5	NUW7	NUW3	NUW4	NUW6	0302	0504s 	0505	0202	0303[B]


?: 0303 returned to field by Cathy & Tony

1	2	3	4	5	6	10	20	40	spare
NUW5	NUW7	NUW3	NUW4	NUW6	0302	0504s 	0505	0202	0303


10/22: Replaced stn6 (0302) with spare (0303)

1	2	3	4	5	6	10	20	40	spare
NUW5	NUW7	NUW3	NUW4	NUW6	0303	0504s 	0505	0202	0302n


10/27: Stn3 [NUW3?] has bad v&w.  No solution found.  (Probably bad xducer)

1	2	3	4	5	6	10	20	40	spare
NUW5	NUW7	NUW3b	NUW4	NUW6	0303	0504s 	0505	0202	0302n

The UW sonic anemometer v and w were bad for station 3.
At ~1200 all the connectors were checked and the transducers cleaned and 
jiggled slightly.
No change was observed.

Noted yesterday the V component of the ATI at station 6 had a positive offset compared to rest of the sonics. Presious status has noted peculiarities in the response of this sonic. Replaced with the sensor brought out by TOny and CAthy on the 20th. Old sensor # is ATI 980302 (ATI#2). New Sensor ATI 98303.

Tom installed the sonic back on station 6.  The mast was back in its
upright position at 17:15 CDT, Oct 17.

Tom and I changed sonics at the 20 meter height. The boom was lowered
at 18:25 CDT, Oct 17.
The sonic at 20 meters is 980505. The sonic that came down went back
to station 6 where it came from a few days ago.

The hot film sheath closing every hour for 1 minute can be seen in the variances of the adjacent sonics at 1.5 and 5 m. So the sonic data during the sheath closures is suspect.

With the high winds, u* from the nuw sonics is noticeably higher than
u* for all the sonics on the 55m tower, including those at 1.5, 5 and 
10m.

The v axis on the 20m ATIK has been spiking.  We plan to move this unit
back to station 6 this afternoon and mount the sonic removed from 
10 m on Oct 10.  SPO found that this sonic was improperly programmed
as though it were a UW array.  He fixed this and we will mount it at
20m.

We turned off cosmos temporarily at 1350 CDT, Oct 15, for a test of
the filtering on the 20m KH2O.  This stopped the 10m sonic again.
Power was cycled on the 10m sonic at 1715 CDT to restart it.

The 10m sonic on the 60m tower quit around 1755 local time, Oct 14.
Restarted it around 1000 local time, Oct 15.

The ATI at 20m died at 10:40 am local time, Oct 14.  We removed the
ATI and KH2O from Station 6 at 15:30 local time and installed them at 20m.  
The sonic came on line at 16:35.  

The mean vertical velocity for PAM station #4 appears anomolous 
compared to the other PAM stations.  The explanation is apparent
from tilt plots.  The sonic at station #4 is tilted about 180
degrees different from those at the other PAM stations.

I cycled power on 55m ati which brought it back to life.  This done about
9:30 (and I was up the tower to ragwort).  This sonic has been down since
2pm yesterday - oops...

Somehow, the 20m ATI was set to 10 samp/s.  I assume that this has been the
case since set-up.  It is now at 20 samp/s.

Something has been wrong with the 10m ATI since it was installed.  The worst
signal is just w.  I just replaced it with our "spare" which was removed from
40m earlier due to spiking and never changed.  I'm hoping that this will
work ok in the lower wind speeds at 10m.  (It ran on the bench just fine.)

Note that this entailed switching the hotwire mount, which fortunately was
straightforward.

Also note that this sonic also has a level, so the config is the same.
(Unlike when we swapped at 40m -- the sonic now there is reporting dummy
values for the levels (i.e. analog output is turned on, but there is no
signal.))

I rechecked the 20m boom this morning and found that the mount had
shifted to the south, presumably caused by the process of pushing the
boom to the north when raising it (to avoid crossed guy wires above it).

At 10:20 am local time, Oct 10, I moved the mount to its correct 
position that was marked by black electrical tape.  Unfortunately, 
the boom still appears to be angled a few degrees to the north 
relative to the other booms.

This entry should have been made on Tuesday, October 5. From 12:40-13:03 CDT, I raised and lowered the 40 m boom to mount a hot-wire probe next to the sonic.

Can change R42 on first stage amplifier.  Default value is 33.2K, could
change to 49.9K to obtain higher gain.

From 0930 to 1045, Horst and Lundquist raised and lowered the beams at 
40m (to remove a hotwire probe shield and support), 20 m (to mount a probe),
and 10 m (to switch out shield/support and mount a probe), in that order.

adam	chan	height	type	owner	serial

cosmos	200	2.5m	CSAT	Miller	
cosmos	201	5m	CSAT	Miller
cosmos	204	10m	ATI	NCAR	980505 (w/levels)
cosmos	205	20m	ATI	NCAR	980202
marigold 200	30m	CSAT	Mahrt
ragwort	200	40m	ATI	NCAR	980504 (w/levels)
ragwort	201	50m	CSAT	Mahrt
ragwort	202	55m	ATI	PNL	980415

All ATIs:
Sample Options Menu\r\n
A. Median Filter (Off)\r\n
B. Data Quality Algorithm (Off)\r\n
C. Shadow Correction Algorithm (Off)\r\n
D. Remove RH from Temp Calculation (Off)\r\n