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2024-11-22

Moved sensors on T7_R2 REX to the switched power SW1 and increased the cycle time to 10 minutes in order to try to reduce the battery drain as we go into the winter.

2024-10-23

Replaced the battery of the T7R4 logger on monday. The battery went down below 9V again overnight. I disconnected the SDI12 sensor power to see if there might be a short in one of the sensor cables.

2024-09-18

Yesterday I forgot to reconnect the C3 wire on T7R5. It’s connected now

2024-09-17

The T7R5 Rex logger returned NaNs for all sensors. 12V port to ground was at 0.2V. I found one sensor that was shorted to ground I removed the power from that sensors. Two more sensors on the left side of the power block dropped the voltage to 11.something so there are probably 2 more marginal sensors

2024-07-24

Sensor check: KK T7r1 a and 3 dead, T7r2 working, T7r3 7 dead, T7r4 working, T7r5 8,0,c dead, T7r6 6,7,8,2 dead. T2r1 5 dead, T2r3 working, T2r4 working, T2r6 working. Ten total sensors failed during the year, more than half in the OTC footprints.

2024-07-23

Working on REX sensors, over 20 not recording. T2R1, repaired sensor 2 and 5. T7R1 removed sensor 3 and a, not working. All others for each treatment should now be responding.

2024-06-24

Added appropriate metal barrier system to REX T2 drought footprints w/ Dave. Minimum two sides

2024-06-11

Installed soil moisture sensors in T2 REX plots. T2R1 number “0” sensor QR code was too faded for reading. This sensor in T2R1 drought corn, subplot s. Installed two sensors in most plots as available. Additionally several ambient sensors. Installed RH air temp in T2R3.

2024-04-22

Removed three T2R1 and three T2R6 sensors that were logging moisture over the winter. In T2R1, we installed one TOMST sensor next to sensor three and one next to six. 6=TMS95147382 and 3-TMS 95147381. Removed between 12:30-1:00PM

Senor 3,4, and 6 in T2R1 and sensor 1,2, and 7 in T2R6. sensor 1 was cut.

2024-03-28

REX - Dave and I finished installing soil moisture sensors in T7s. Most sheltered or OTC footprints have at least two sensors, some four, and a few footprints that we can use for ambient soil moisture.

We will install posts for raising the cables later.

2024-03-15

Added sensors to T7 OTC and Drought OTC footprints. Found T7R3 5 and 6 cut, replaced same day. Need to find sensors long enough for Drought corn T7R4.

2024-03-13

For soil moisture sensors on T7s, we also found several cut cables. T7R1 sensor 7, T7R3 sensors c and d, no sensor 6 installed, T7R4 sensor h and l, Several installed sensors were found to be stepped on. These include T7R1 sensor 0 and b, T7R2 sensor 3 and c, T7R4 sensor 0 and d.

2024-03-13

Kevin and Dave removed soil moisture sensors from T1R1 and T1R3. Sensors from T1R1 that were cut include a,b, and d. T1R3 sensor 0 was cut. We used some of these sensors to replace destroyed sensors on T2R4 and T2R3. T2R4 sesors cut include 5-0,c.f.g. We replaced sensors 5-8 with appropriately addressed sensors. On T2R3, 8-0 and b-d were destroyed. We replaced 9,0, and c.

2024-02-25

Removed all T7 REX sensors prior to T7burn. Found the following sensors cut: T7R1 sensor 7, T7R3 sensors c,,d (and no sensor 6 found), T7R4 h and l. Removed all barriers and marked positions on 2/2024 map (in Kevin’s notes).

2024-01-05

T1R1 a-d, T2R3 9,d,0,?, T2R4 7,8,9,0,c,f?, T1R4 5,6? All sensor cables in this list were cut into many pieces. Sometime between installing winter probes and yesterday. Sensors were dragged into adjoining plots and alleyways. ? means there maybe more sensors that were not found. Also, several T7 sensors are not reading. T7R3 (0,9,a-d), T7R4 (d,l), T7R5 (8,9,a,b,d), and T7R6 (1,5,6).

2024-01-05

The T2R6 logger’s pakbus id was reset to 1 and the program was not running. I updated the OS on the CR800 to version 32.06 and set it up with the correct program and pakbus id. The datalogger is now logging and connecting.

2024-01-04

The T7R4 problem seems to have been a loose ground. I had measured 0 V with C1 connected and 12 V across the datalogger power pins with C1 disconnected, however, the logger still appeared flakey. I think I did not measure correctly. After I disconnected the ground from the sensor array and reconnected it the logger appeared to work again.

Currently, C1 is connected.

I reset the watchdog and Undervoltage error count on T7R4.

2024-01-02

I replaced the battery on REX T7’R4 logger. C1 was disconnected. I am not sure why, but I reconnected it.

2023-12-15

Installed three sensor per two plots in T1 and T2, two plots each. T2R1 and 6. T1R1 and 3. KK and DW. Saved to survey 1,2,3.

2023-10-19

Removed T1R2 and T2R4 crosspattern soil moisture sensors w/ Dave.

2023-10-18

Dave, Ethan, and Jarrod removed remaining T1 and T2 REX soil moisture sensors except for the crosspatterns in T1R2 and T2R4.

2023-10-17

Dave and I removed soil moisture sensors from T1R3 and T2R1 this afternoon. Used Survey123 to denote sensor removed and from where. T1R3 sensor 0 had a cut cable about 18” from the sensor and rods looked like the sensor was stepped on. Review moisture data for this sensor.

2023-08-08

Removed all REX shelters for drone flight. 10:30-11:30AM. Replaced from 1:30-2:30PM Worked with Dave, Joe, Jarrod.

2023-08-03

T2R1 VR sensor 5 has the insulation cut. It responds to I commands but returns NaN’s in response to measurement commands.

Connected sensor 0 on T1R2 to sdi12 bus 4. It does not respond to queries…

2023-08-01

Checked missing REX sensors.

  • added screws on T2R1, and sensor 0 was responding; sensor c did not
  • removed sensor cable for sensor 0 from T1R2. When I added sensor 0, the whole bank of sensors on C3 was not responding. When I removed the sensor, they did respond. I did not trace the wire for sensor 0 into the field but just left it disconnected.
2023-07-14

Raised all T1 and T2 shelters from 4’ to 8’ yesterday. A total of 7 people in the morning and 8 in the afternoon. Took less than 6 hours. Trick is to add the riser to the existing vertical first, then add to the base pin. Easiest method. Pulled out shelters by hand then used the forks to adjust.

2023-06-21

All sensors on T1 and T2 deployed on 6/19 and 6/20 (Kevin/Dave). Will need to check each logger for sensors not reading. Also trench and bermed a barrier around T1 REX areas. Then added steel barrier to drought footprints on T1, and placed plastic barrier on T1 and T2 control and variable plots as well as T2 drought (Dave, Stephanie, Kevin). Noticed many Cabbage Whites in recently watered footprints.

2023-06-14

Dave and Stephanie started washing side panels on REX shelters. Set up tote container, Honda pump, hose from tote to incoming pump, and garden hose barbed connection from pump outlet to garden hose and nozzle sprayer. Took one afternoon and partial morning just prior to shelter install into T1, T2, and T7 plots. Kevin and Dave to finish this morning.

2023-05-31

Repaired T2R1,3,4 loggers. T2R4 sensors that are active include 1-4, 5-0, c,,f,i.

2023-05-26

Spent the last week plus repairing and reconnecting soil moisture sensors. Added one sensor to each T1 and T2 for Grant earlier in the week. Working with Sven to make sure all sensors show up on Grafana.

2023-05-22

I checked Sensor address 8 on T7R6. According to the program, sensor addresses 1-4 and 8,9 and b were not responding, but it looks like 1-4 and b and maybe 9 are not hooked up. I left sensor address 8 hooked up to C5. It did not respond to an address query command ‘?!’. I disconnected the power on sensor 8 and there were 12V between the logger power and the power line on the sensor (grounded).

2023-05-04

Worked on logger T7R3 yesterday. Got sensors 1-8 working except 6 and 9 went down later in the day. Will need to fix these.

2023-04-14

Continued with T7 sensor and barrier install. Waiting on OTCs to be deployed prior to finishing up.

2023-04-13

KK and DW finished flagging subplots on T7R1-5 and installed barriers on non-OTC plots with shelters on T7R1-4. Laid out sensors but did not install yet.

2023-04-10

For Reach Units, please make sure the hotspot is on 2.4Ghz as the Reach unit uses the same. A symptom of this is the lack of connection with NTRIP. No fix will be made.

2023-03-27

T2R4 cross pattern sensors were pulled into the plot (unknown reason) and 9/12 sensors were cut. In addition, six sensors were cut in the T7 plots. T7R1 sensor c and d, T7R2 sensor f, T7R4 sensor c and j cut, T7R6 sensor 3 and 4. All barriers and sensors removed for burn 3/28.

2023-03-20

Found T2R4 group of 12 cross pattern soil moisture sensors pulled into the plot and 9/12 cut in several pieces. KK/DW Could/Did not determine cause.

2022-09-23

BCSE Albedo flight 2-3PM light winds and slight haze. Required three batteries in this set. Also took a few oblique images. ALSO, Dave started to remove risers on REX shelters for winter storage. Also need to remove hoses from gutters soon.

2022-08-16

Help Grant sample and process REX soil - Helen, Brianne, Gloria

2022-08-10

Added Router on T2R1 and checked on T1R2. Disconnected probe 0 to recover connectivty to probes a, b and c. There is a probe d (on C3) and 3 (on C1) that have not been active for quite a while. Probe 0 is laying in the alleyway. Checked power and ground connections and did not find anything loose.

2022-07-18

Over the last two weeks URA student (Maggie Jones) has collected PAR ceptometer measurements from T7, T1, T2, and old interaction shelters. Data to be sent to Sven. Used LP-80 (up only, no LAI) Also compared LP-80 to a smart phone app.

2022-07-11

On Friday we had an intense rainstorm in the afternoon. This an opportunity to put myself under a rain exclusion shelter (or two) to observe what happens during such a storm. I selected T1R1-drought as a first look. T1R1 and T1R4 had obvious rainfall impacts from an earlier storm. In the early part of the storm, the shelters afforded great protection from the rainfall and no overland flow was observed. After a few minutes, I noticed that pooling was rapidly taking place to the north of the ground barrier we installed. The water would start to divert to the west (barrier sloped that direction), but there was so much water travelling from the north that the area pooled quickly, then flowed over the barrier and into the subplots. I took a video of the large flow of water. Preventing this will require some aggressive approach/approaches. The incoming flow of water was very significant. T1 soil structure and topography are the culprits I\’m certain. The rainfall intrusion above the canopy was minimal, the wind was from the north, and I observed maybe a 1-1.5 foot intrusion. The E-W-S maintained protection. T2s and T7s seem to withstand heavy events (no overland flow or rainfall intrusion) according to Grafana real time soil moisture data. I also spent time checking a T2 footprint. Looked good. In general, I believe we are dialed in with the shelters themselves, we now need to work on protection from overland flow particularly in T1s.

2022-07-11

Kevin, Dave, Sven removed soil moisture sensors from T1 and T2 REX footprints between 1:30 and 3:45 PM. All T2 Drought footprints extremely dry. T1R3 D also dry on south side. Control T2 footprints also fairly dry.

2022-06-09

trailer is hot. 60C in the afternoon. Moved solar shield to T2R3 in and connected. Current RH/T in place are T7R5 in and out, T2R3 in and out, T1R3 out.

2022-05-21

Reinstalled G1 chambers on BCSE. G1-3 has metal barrier for detection limit (along with G5-6). Joe fertilized G1 today. Still need to repair clamps on G1-2. Had an issue with MICOS today. Important to tell people to shutdown system by exiting program not by shutting off power. Restarted after computer ran scan. All chamber measurements are on gashog chamber data. Mesocosm testing for airtight seal commenced today. Carmella, Sarah, Kevin, and Dave added bulkhead fittings etc. Testing with SF6.

2022-05-11

All edging added to T1, T2, T7 sheltered footprints. Completed today. Took approximately 3 days for all. Always added edging to higher elevation sides (two). and directed edging away from subplots. Grant will fill in a few low spot areas with soil. All north and south peaks are filled in on shelters using older roofing material. The north side shelter peaks is built with lumber. 2x4 ripped in half and pieces cut to similar dimension of cross-members on the south side. Use rafter brackets to stabilize the lumber. Did not use treated lumber mainly due to excessive price. One foot risers not yet installed. Sorghum subplots in T2 and T1 have wheat noticeably taller than other subplots..

2022-04-22

replaced rex logger at T2R6 with a spare CR800, since we are using radio communications and moved the CR1000x from there to the blocked one on T1R2. I kept the pakbus id\’s of the loggers so the pakbus id\’s in the data will change with the change in the loggers.

2021-06-08

Collect LTER leachate - Alyssa, Ellen Power wash REX tanks - Anna, Morgan Install REX shelter casters - Anna, Morgan, Ellen

2021-06-07

Evacuate LTER lysimeters - Alyssa, Ellen Install REX shelter casters - Anna, Morgan, Ellen

2021-06-04

Sticky traps - Anna, Rachel BCSE MICOS gas and soil sampling - Ellen, Stacey Trim back plants from forest paths - Alyssa, Anna Help with T7 REX watering - Morgan

2021-06-03

Sticky traps - Anna, Rachel BCSE gas chamber prep - Ellen Help Grant plant soybeans (REX) - Alyssa, Ellen, Morgan

2021-06-01

REX irrigation installation - Anna, Rachel LTER gas chamber prep, GPS short flags into T4, G4 - Ellen, Morgan

2021-05-25

Install T-posts, work on REX irrigation - Anna, Rachel REX datalogger work, reflag stations - Alyssa, Ellen, Morgan

2021-05-24

Rainout datalogger help - Alyssa, Ellen, Morgan Install T posts - Anna, Rachel Finish switchgrass stand counts - Alyssa, Morgan Reflag MCSE - Ellen

2021-05-21

Help Kevin with T1 REX dataloggers - Alyssa, Anna, Ellen, Morgan