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26

JD330

27

JD331

28

JD332
GLEES Site Visit (JF): Details , Photos (8)

JF site visit (took photos)

removed 6.5m Vx-probe, added K-probe at 6.5m (NOTE: K-probe worked for 15 min, then locked up!)

29

JD333

30

JD334
Site Visit (SpB): Details , Photos (10)

Span cylinder at 1000 psi. N2 at 1050 psi

Katja started collecting shed temperature data

at approx 1 AM: power outage (according to Xcel)

moved eb0034401 (N2) from C-1 trailer to tower

moved cc175573 (span) from tower back to C-1 trailer

Enterprise Mini-van

Mostly clear skies; warm for this time of year

1

JD335
(Full "Cold" Moon)

2

JD336

3

JD337

4

JD338
Windy; colder

5

JD339
GLEES Site Visit (JF): Details ,

JF power-cycled K-probe at 6.5m and it started working ok

SpB Off

6

JD340
SpB Off (in AM)

7

JD341

8

JD342

9

JD343
at GLEES: K-probe at 6.5m locked up and stopped working (no recovery); the only K-probe data we have is from 12/5 to 12/9

10

JD344

11

JD345
Start of Fall AGU (NO)

12

JD346
GLEES Site Visit (JF): Details

JF removed 6.5m K-probe (it was broken on 12/9/18) and returned to the Vx-probe at 6.5m

13

JD347

14

JD348

15

JD349

16

JD350

17

JD351

18

JD352
Site Visit (SpB): Details , Photos (20)

Span cylinder at 900 psi. N2 at 800 psi

moved cc41189 (n2) from C-1 trailer to tower

moved cc448922 (n2) from tower back to C-1 trailer

SpB Pruis C

A bit blustery; not much snow and fairly warm

19

JD353

20

JD354

21

JD355
Winter Solstice

Cold front arrives in early AM; some snow

SpB Off (Start)

22

JD356

23

JD357

24

JD358

25

JD359
CU Holiday (x-mas)

26

JD360
CU Holiday (day after x-mas)

27

JD361

28

JD362

29

JD363
between 4-5, 8-9, 22-23 MST: many short power outages

in AM: PhotoSpec computer goes off-line (no PAR data from JPL/photospec)

SpB Returns

30

JD364
between 17-18 MST, short power outage

(NOTE: this damaged the powerline going to the ridge, so the entire ridge had no power for the next 5 days or so, but power at C-1/AmeriFlux was ok)

31

JD365

1

JD1
(Full "Wolf" Moon)

CU Holiday (New Years Day)

2

JD2

3

JD3

4

JD4
Power is restored from C-1 to Niwot Ridge (power at tower unaffected)

5

JD5
Site Visit (SpB): Details , Photos (18)

Span cylinder at 750 psi. N2 at 550 psi

moved cc453607 (n2) from C-1 trailer to tower

moved cc443821 (n2) from tower back to C-1 trailer

at around 12 MST, rebooted PhotoSpec computer (JPL PAR data being collected again)

SpB Pruis C

A bit blustery; fairly warm

6

JD6