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August

2026

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26

JD207

27

JD208

Data from the UC CR23X stopped transmitting to the datasystem

28

JD209

29

JD210
Site Visit (HR, SpB, DB + CSU folks): Details, SpB Photos (28) , HR Photos (6)

Downloaded data from all loggers

tried to download the SD card data from the MRS logger (did not work).

moved several boxes from the Cristol lab up to the trailer

Attempted to get UC CR23X coms with the datasystem back up, but the problem was found in a Black BOx short haul modem, which we did not have a replacement for

LI-6262: SpB bypassed the flow valves to pull sample gas into the LI-6262 directly, but the cell pressure is now too high, so the LI-6262+pump will be shut off again on next visit

removed metal tables from trailer (taken to MRS); cleaned out some trailer trash

HR Jeep

afternoon thunderstorms

30

JD211

31

JD212

1

JD213

2

JD214
Site Visit (HR): Details,HR photos (8)

Turned off and unplugged GAST pump at 12:24 MST, turned off LI-6262 at 12:27 MST

From 12:30-40 MST, replaced Black Box short haul modem to restore coms from UC CR23X logger

From 13:10-20 MST, swapped LI-7200 inlet. post-swap flow rate: 10.5, motor drive: 90%

HR Jeep

Hot and sunny

3

JD215
SpB Off

4

JD216

5

JD217

6

JD218
Site Visit (MD): Details,

in AM: Matt D visited the site and installed dendrometers on four lodgepole pines

7

JD219
at 4 MST: the SOIL cr23x logger battery (or charger) dies

8

JD220

9

JD221

10

JD222

11

JD223
SpB Returns

12

JD224

13

JD225

14

JD226

15

JD227
Site Visit (SpB): Details, SpB Photos (34)

from 10:45-10:55 MST swapped the 21.5m LI-7200 inlet filter (now using a 15-micron filter)

added batteries to the RADCAM, but it is apparently dead (not a battery issue)

SpB Jeep

overcast, calm

16

JD228

17

JD229

18

JD230

19

JD231

20

JD232

21

JD233
Site Visit (HR): Details,HR photos (9)

from 11:00-11:25 MST tested out swapping the 21.5m LI-7200 inlet filter (still using a 15-micron filter)

downloaded data from all loggers (doy 210-233)

SOIL CR23x battery/battery charger was dead, powered CR23x with AC-DC adapter

HR Jeep

hot, windy, isolated storms in afternoon

22

JD234
Site Visit (PB + Geog students): Details

in AM, PB brought GEOG grad students and faculty to tower for GEOG new grad student orientation

PB noted: Como Creek very low/dry; and trees near C-1 marked with X's to be removed by xcel

23

JD235

24

JD236

25

JD237

26

JD238

27

JD239

28

JD240

29

JD241

30

JD242

31

JD243

1

JD244

2

JD245

3

JD246

4

JD247

5

JD248