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September

1999

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29

JD241

30

JD242

31

JD243

1

JD244

2

JD245

3

JD246
Site Visit (AT): Details

span tank had dropped 200 psi (leak in new valve?)

turned off the 1-m T/RH sensor (H2O was getting into the connector)

turned off fast o3 pump

Start of AmeriFlux intercomparison (with Bob Evans)

4

JD247
at 7:00, data running fine

5

JD248
Site Visit (AT): Details

from 11:00-11:15, manual calibration of EC/LI-6262 system

from 11:15-11:20, swapped prof/LI-6251 dessicant

at 12:15, 2-m T/RH running again

at 13:25, o3 turned off

at 13:44, manual cal of EC/LI-6262 system

6

JD249

7

JD250

8

JD251
Site Visit (AT): Details

from 14:00-15:00, put new SS inlet on CO2 line; cleaned krypton hygrometer

at 16:00, new filters on fast.o3 line; turned on fast1.o3 (not both)

from 16:00-17:00, moved ATI sonic to 13m

End of AmeriFlux intercomparison (with Bob Evans)

9

JD252

10

JD253
Site Visit (AT): Details

from 10:30-11:18 EC system down (leak at inlet to IRGA), fixed!

manual cal of LI-6262

11

JD254

12

JD255

13

JD256

14

JD257

15

JD258
Site Visit (AT): Details

at 15:00, changed o3 target for fast1.o3

from 15:15-15:30, prof system down

16

JD259

17

JD260

18

JD261

19

JD262

20

JD263
Yom Kippur

21

JD264
Site Visit (AT): Details

from 10:00-15:00, re-arranged radiation sensors and data logger connections

Blanken 23X --> start using CNR3.CSI (CNR-1, PAR, NR.LITE, REBS Q*7.1)

light21x --> met21x.csi using MET.CSI (prop-vane winds, RH1-3, baro pressure)

at 14:00, changed prep.config

at 15:30, autocals OFF

22

JD265
Site Visit (AT): Details

covars didn't run correctly (error in covar.config from yesterday, fixed, re-ran covars)

from 11:30-16:00, added dessicant trap to profile system (seemed to be problematic, see AT logbook)

Fall Equinox

23

JD266

24

JD267
Site Visit (AT): Details

at 10:00, swapped dessicant trap attached to UHP N2 cylinder

from 10:00-13:00, moved profiler inlets, L1=0.5m; L2=1m; L3=2m; L4=5m; L5=10.5m; L6=21.5m; changed inlet filters on L1-L4, still need to change L5 + L6

25

JD268

26

JD269

27

JD270

28

JD271

29

JD272

30

JD273
Site Visit (AT): Details

from 11:30-11:45, changed desiccant on profiler

1

JD274

2

JD275