- 444: PSYCHROMETERS , Site none, Wed 24-Oct-1990 22:58:05 GMT, Installed new psychrometer at 10 m at
Installed new psychrometer at 10 m at
~22:00.
- 477: PSYCHROMETERS , Site none, Sun 28-Oct-1990 01:15:26 GMT, Psychrometers at 2 and 10 m replaced
Psychrometers at 2 and 10 m replaced
Both psychrometers were replaced by new units which Cathy sent up.
The 2m wet now looks good, but the 10m wet looks dry. Hopefully,
the wet will start wicking tonight. The dry isn't obviously bad
at 10m, but should be examined in more near-neutral conditions.
- 482: PSYCHROMETERS , Site none, Sun 28-Oct-1990 18:24:15 GMT, Psychrometer wick changed
Psychrometer wick changed
Since the wet at 10m was reading like a dry, we just:
- dropped the psyc tower, put new psychrometer@10m in, raised tower
- found that the new one still read low (about .2C), but was wicking okay.
- dropped the tower again, put back the psych. which was there
- tested on the ground, found that the wet was still dry
- traced problem to the wick - water was beading up on it
- replaced wick with the wick in the new unit we had just put up.
- tested - seemed okay
- raised tower
Note that before raising the second time, ragwort crashed (perhaps because
Tony was walking on the walkway nearby?). I will make another entry in
operations about this.
- 534: PSYCHROMETERS , Site none, Sat 03-Nov-1990 18:21:19 GMT, PSYCROMETER - 1m
PSYCROMETER - 1m
The 1m psychrometer was acting up yesterday.
Both the dry and wet were reading high by about 1 degree.
Inorder to decide if it was a bad sensor, we switched the
1m and 2m units at 18:10 GMT. Will monitor it for awhile.
- 536: PSYCHROMETERS , Site none, Sat 03-Nov-1990 21:19:41 GMT, PSYCHROMTER - 1m
PSYCHROMTER - 1m
The psychrometer at 1m was replaced with
a new unit, id # 09. The old unit will go back to
Boulder for calibration checks. The swap occurred
at ~21:10 GMT.
- 546: PSYCHROMETERS , Site none, Mon 05-Nov-1990 16:10:07 GMT, 15 m wet bulb appears a little low
15 m wet bulb appears a little low
around 10:00-14:00 on JD 309.
- 551: PSYCHROMETERS , Site none, Tue 06-Nov-1990 01:04:22 GMT, 15 m wet bulb is definitely a little lo
15 m wet bulb is definitely a little low.
See compsyc output for JD 309.
- 629: PSYCHROMETERS , Site none, Thu 15-Nov-1990 19:13:31 GMT, PSYC - 4m
PSYC - 4m
The psychrometer at 4m went down at 18:20 GMT.
Can only speculate that the connection between the
electronics and the beehive was bad. After pushing up
on the electronics and resetting one of the fasteners, the
sensor came back to life. Time was 19:00 GMT.
- 633: PSYCHROMETERS , Site none, Thu 15-Nov-1990 22:11:53 GMT, PSYC DATA
PSYC DATA
Throughout the day the preprocessed psychrometer
data has had bad time flags. This maybe due to the 4m psychrometer
going out. Who knows! Anyway, the raw data files look ok, thru data_stats.
I have been editing the preprocess file so we can plot data.