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June

1999

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30

JD150

31

JD151
Memorial Day

1

JD152

2

JD153

3

JD154

4

JD155

5

JD156

6

JD157

7

JD158
Site Visit (AT): Details

new N2 and span gas?

8

JD159
Site Visit (AT): Details

Hooked up nafion dryer to prof system

Grounded CSI boxes to the tower

9

JD160
Site Visit (AT): Details

at around 12:00, swapped out the prof IRGA (LI-6251, #368) for a borrowed LI-6262 from NCAR (LI-6262, #700).

for LI-6262, p.prof is now really h2o.prof

10

JD161

11

JD162
Site Visit (AT): Details

before 11:00, moving some things in prof system

plugged prof pump into outlet at bottom of tower

moved sonic from 18.5m to 14.5m (not sure which sonic?)

12

JD163

13

JD164

14

JD165
Flag Day

15

JD166
Site Visit (AT): Details

changed profiler desiccant

measured guy wires tension

16

JD167
new LIGHT.csi wiring diagram (see AT logbook)

17

JD168

18

JD169

19

JD170

20

JD171
EC system crashes

Fathers Day

21

JD172
Site Visit (AT): Details

moved Rnet sensor to other side of tower (above CSAT3)

rewired LIGHT CR12X (new program LIGHT2.csi, see diagram in AT logbook)

status.ec is now output directly (not measured in DIFF CR21X channel)

unplugged autocalibrations on EC system

Change in OPS file (change to chanXX w/ Rad,RH,status.ec)

Summer Solstice

22

JD173
Site Visit (AT): Details

updated PROF CR23X, status.prof is now output directly (not measured by DIFF channel)

23

JD174
Site Visit (AT): Details

at 15:00, moved ATI sonic to 16m

moved 18m T/RH sensor to 21.5m (next to CSAT3 sonic)

24

JD175
Site Visit (AT): Details

re-started EC system autocalibrations

re-plumbed PROF system

at approx 15:45, PAR sensors up and running

25

JD176

26

JD177

27

JD178

28

JD179
diagram for leaf wetness sensor wiring (see AT logbook)

29

JD180
Site Visit (AT): Details

replaced N2 gas cylinder

at around 12:00, swapped out the borrowed NCAR IRGA (LI-6262, #700) for the old prof IRGA (LI-6251, sn 368).

hooked up O3 (TECO)

dug up heat flux plates and re-buried near canopy access towers (see AT logbook for details)

30

JD181
Site Visit (AT): Details

at 12:00, new co2 span gas

added AM416 (heat flux plates) to SOIL 21X (see diagram in AT logbook)

added leaf wetness sensor to PROF logger (new program prof23x2.csi)

start of a new OPS file

1

JD182

2

JD183

3

JD184