CASES97: FASTH2O Messages: 8 Entries..

From logbook, a list of actions for each station's fast H2O sensors:
(now, NetCDF files should NA fill the bad times)

[Kryptons]

Site 1:
4/12 1725       install
4/27 1850       unbag
4/27 1923       clean
5/1  1708       bag
5/2  2029       unbag
5/8  1946       (plugged?) & cleaned
5/10 2129       "work"

Thus, working: 4/27 - 5/1; 5/2 - end

Site 2:
4/12 2030       install
4/19 2010       new bag
4/27 1843       unbag
5/1  1743       bag
5/2  2132       unbag
5/8  1722       clean

Thus, working: 4/27 - 5/1; 5/2 - end

Site 3:
4/16 1944       cleaned [I think this time is CDT, when others are GMT 6/5/00]
4/27 1738       unbag
4/27 2008       clean
5/1  1726       unplugged (& bagged?)
5/2  1701       reconnect
5/6  1802       unplugged
5/9  2202       routine [kh2o turned on ~5/8 2200]
5/13 1917       cleaned

Thus, working: 4/27 - 5/1; 5/2 - 5/6; 5/9? - end

Site 4:
4/12 1813       install & bag
4/27 1528       unbag
5/1  1914       bag
5/2  1903       bag and clean?
5/6  1902       unplugged
5/9  1350       plugged
5/19 1543       died last night [about 0700]

Thus, working: 4/27 - 5/1; 5/2 - 5/6; 5/9 - 5/19

Site 5:
4/10 1721       setup
4/27 2010       cleaned
5/1  1703       bagged & unplugged
5/2  1757       unbagged
5/6  1656       unplugged
5/9  2236       routine visit [kh2o on about 5/8 2200]
5/19 1656       died [about 0800]

Thus, working: 4/27 - 5/1; 5/2 - 5/6; 5/9? - 5/19

Site 6:
4/10 2225       changed
4/11 1429       bagged
4/12 2026       new sensor
4/19 1654       moved, cleaned & bagged
4/22 1839       rotated
4/27 1637       unbag
4/27 2156       cleaned
5/1  1455       bagged
5/2  1558       unbagged & cleaned
5/6  1942       unplugged
5/9  2019       routine [kh2o on about 5/8 2200]

Thus, working: 4/10 - 4/11; 4/12 - 4/19; 4/27 - 5/1; 5/2 - 5/6; 5/9? - 5/19

[Ophirs]

Site 7:
4/19 1702       moved
4/24 1828       changed cables
4/24 2011       working

Thus, Ophir working: 4/19+ - end

Site 8:
4/24 1828       changed cables
4/24 2011       working
5/11 1600       install krypton
5/19 1522       krypton died

Thus, Ophir working: 4/24 - end; krypton working 5/11 - 5/19

The Krypton hygromterers at stations 4,5, and 8 appear to have quit.
John and Kathy will try to revive them and Peggy is considering 
moving working hygrometers.

Installed the AIR bandpass on the ATI tower and the CSI Krypton
sensor on the Campbell tower this afternoon.  Each sensor was
installed underneath the sonic boom and "behind" the sonic.

Calibration for Krypton:
	Added file $ASTER/cal_files/krypton1089
	and edited $ASTER/projects/CASES97/ops1/prep.config
	for marigold 100 q_kh2o("krypton1089")  d=(h2o).csi
	and restarted the covars.
	NOTE in the krypton1089 file I put in the "Full Range"
	coefficients instead of the Dry or Wet linear range.
	...I presume that's correct?
	These coef. were found on the Campbell worksheets
	provided when the sensors were rented for this project.

Calibration for BPH with AIR fast trh:
	Steve edited $ASTER/projects/CASES97/ops1/prep.config
	for marigold 101 t_vaisala(-41.731524,20.5538,-0.006932) d=(t).bph.s8
	and marigold 102 h2o_vaisala(2.646416,17.16,0.519267,0.0,0.0) 
		d=(rh,h2o,rh2o).bph.s8
	and restarted covars on 5/12: 14Z

Bagged krypton h2o sensors at sites 1-4, 6; 
disconnected krypton at site 5 from station electronics
and inserted shorting plug in A/D input channel.

We found a miswired cable by comparing the two serial ophir cables.
Both instruments are now running as they should.

We've isolated the problem with the OPHIR at #8 to the serial cable.
We've pulled the cable from #7 to allow us to compare the two.
Hopefully, both will be up soon.

I've noticed that the ophir data from site 7 (the only ophir so far) have had
a lot of spikes.  They are of two types: zero values and double values.
I've isolated the double value glitches to an occasional "stuck bit" in
the reference measurement, with values off by 256 counts.

I've added simple despiking of this channel into the ophir calibration
routine which appears to fix this problem, though I haven't tested it
through zero values.

the ophirs at sites 7 and 8 were moved closer to the tower along their
booms.  This was done to reduce the moment for wind loading of the towers
(they were swaying a lot yesterday) and to reduce the blockage for N winds.

They are now about 70cm to the NE of the sonic arrays.