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June

2021

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30

JD150

31

JD151
CU Holiday (Memorial Day)

just before mid-day, the medtherm TC on the subcanopy tower has an issue? broken?

REBS Rnet dome is cracked around this day (not fixed until 7/24/21)

Perhaps a major hailstorm?

1

JD152
the road from MRS to C-1 is now open/driveable

2

JD153

3

JD154

4

JD155
Site Visit (SpB): Details , Photos (39)

Span cylinder at 490 psi, N2 at 1100 psi

moved new cylinders from MRS to C-1 trailer: cc491897 (n2), cc491784 (n2), cc704247 (n2), cc178630 (span), FB03909 (LBL), FB03874 (LBL)

moved empties from C-1 trailer to MRS snowshed: cc442238 (n2), cc234071 (n2), cc239886 (span)

increased the delivery pressure on the N2 cylinder by around 10? psi

noticed that the dome on the 25m REBS sensor is cracked (full of water!); the 2m REBS sensor also has cracked dome!

at 12:00 MST, cleaned the 21.5m LI-7500a windows (w/ vinegar)

at approx 12:05 MST, swiped krypton hygrometer (w/ vinegar)

tried to reboot the GPS at the tower (I don't think it fixed the issue)

also, rebooted isffa (chrony was not coming up); first reboot in around 260 days

Enterprise SUV rental (drove to C-1)

Clear skies; still lots of snow in the forest

5

JD156

6

JD157

7

JD158
at mid-day, EOS FD sensor 006 (the one attached to the data system) starts having problems (large variations in flux data). Note: these problems never go away!

8

JD159
Sunny/Hot

9

JD160

10

JD161
AmeriFlux workshop on: "Improving understanding of land-atmosphere interactions through integration of surface flux and atmospheric boundary layer measurements"

11

JD162
Based on T.soil, snow is now gone at the mini-tower (start of the warm season)

AmeriFlux workshop on: "Improving understanding of land-atmosphere interactions through integration of surface flux and atmospheric boundary layer measurements"

12

JD163

13

JD164

14

JD165
Flag Day

SpB Off

15

JD166
at 16:00 MST, lost network connection (hardware issues at C-1)

SpB Off

16

JD167

17

JD168
at 15:00 MST, network connection to C-1 repaired (tower ok)
at around 18:00 MST, re-lost network connection

18

JD169
at around 20:00 MST, network connection to C-1 back up

19

JD170

20

JD171
Fathers Day

21

JD172
AMS Ag Forest Met Meeting (virtual)

Summer Solstice

22

JD173
AMS Ag Forest Met Meeting (virtual)

23

JD174
Site Visit (SpB): Details , Photos (37)

Span cylinder at 350 psi, N2 at 710 psi

moved cylinder FB03874 (LBL, span) from C-1 trailer to tower shed

the dome on the 25m REBS sensor is cracked (full of water!); the 2m REBS sensor also has cracked dome!

Disconnected NOAH and MRS loggers from power

from 14:00-14:15 MST, swapped the 21.5m LI-7200 inlet assembly (flow was restricted!)

tried again to reboot the GPS at the tower (still has an issue, contact CSI?)

from 14:50-14:55 MST, adjusted span/N2 flow for LI-6262

swapped SD card from radCAM

turned on fan for LI-6262 enclosure

added salt/water to grounding tubes (need to order more salt!)

SpB Prius

Partly-clear skies; very dry; smells a bit smokey

24

JD175
at around 12:45 MST, lost network connection to tower (could not connect to radio modem at tower)
at around 21:00 MST, network connection to tower was restored (don't know why!)

25

JD176

26

JD177
Wet/cold

27

JD178

28

JD179

29

JD180

30

JD181

1

JD182

2

JD183

3

JD184