Projectlog Entries List

decommissioned the REX logger box and sensors from T2R1.

replaced T7R4 logger with the one from T1R2. The sensors are now all on C3 instead of on C1, C3 and C5. I've adjusted the program to take that into account. Shields not connected to ground. There are 3 sensors installed. (g, f, e). Sensor f does not respond. Since we have only 3 sensors and 4 SDI12 ports I wired each sensor to it's own SDI12 port.

Prepared 1M KCl

Lachat run LTER Lysimeter 20260402. Notes from run:

• Three vials labeled T3 R3 1, 2, and 3 were ran as T5 R3 1, 2, and 3. Flasks for T3 R3 and T5 R3 were swapped when evacuating samples. Weights were adjusted when entering in data file to the correct location, but vials were sampled incorrectly.

LTAR 18 gas sampling -

BCSE 13 gas sampling -

LTAR, BCSE Hydrosense sampling - Emily

T5 understory ANPP sampling, set LFLIT traps. NS trap… 2.4mN, 1.2mW of station 5 to SE corner of trap, frame oriented with short ends on the north/south; label ex. T5R1 NS EW trap… 2.4mS, 1.2mW of station 3 to NE corner of trap, frame oriented with short ends on the east/west; label ex. T5R1 EW. Collect newly fallen poplar leaves within frame as LFLIT (if any). Clip all biomass rooted inside frame with scissors – as close to the ground as possible. Bag as LIVE to sort in the field lab later (store in black bags in fridge). Use electric trimmers to trim back plants outside the frame to keep them from falling over the frame. Leave the frame in place and lay a screen inside it. Push the screen down inside the frame so it rests on the ground. Use clips (at least 6/trap) to attach the screen to the wooden frame on all sides. - Alyssa, Jon, Emily, Sam, Bella, Glori, Jordyn, Brian

Prepared EDTA Reagent (1L) 66 gms ethylenediamine tetraacetic acid disodium salt dihydrate (EDTA) Approximately 7.0 gms sodium hydroxide pellets ph to 7.03 with NaOH pellets then dilute to volume with nanopure.

Raised tower 2 (BAU north of pond lab) sensors to 168" (14'). Rest N-S.

Set up a set of six CS650 sensors on a CR800 data logger. All sensors connected to C3 control port. These measure a soil moisture profile. Three sensors in between F5 and F6 on Block 5 1 meter in from the North edge.

Address 1 = 12" depth Irrigated Address 2 = 24" depth irrigated Address 3 = 34" depth irrigated

Also installed three sensors on the rainfed side Block 2 in between F6 and F4, one meter in from the north edge.

Address 4 = 12" depth rainfed Address 5 = 24" depth rainfed Address 6 = 36" depth rainfed.

All sensors installed offset from one another so one sensor does not influence another.

Sven will connect radio and program.

LTER Grad Fellow Symposium

Pack CN - Glori

Data entry - Emily, Jon

LTER field lab to do list (cleaning, organization, dump old samples) - Jordyn, Sam, Brian

Prepared fresh Phosphate Buffer (1L) 28 gms Sodium Hydroxide pellets 50 gms sodium phosphate dibasic heptahydrate dilute to 1 L with nanopure.

Prepared EDTA Reagent (1L) 66 gms ethylenediamine tetraacetic acid disodium salt dihydrate (EDTA) Approximately 7.0 gms sodium hydroxide pellets ph to 7.03 with NaOH pellets then dilute to volume with nanopure.

Postponed field work, including LTAR 18 and BCSE 13 gas sampling, due to hazardous air quality outdoors from Canadian wildfire smoke.

Reinstalled ASP1 gas chambers after forage baling - Sam

Weigh LTAR plants - Jon, Jordyn

Sort ASP1 forage - Emily, Brian, Bella, Jon, Sam, Olivia

Pack CN - Sam, Bella

Dishes, lab clean-up - Jordyn, Glori

NAS vial prep and data entry - Olivia

The usb to serial pigtail between the rpi and the RF407 radio in the BCSE gas trailer appears to have failed. I replaced it with one from the ICOS system.

Postponed LTAR 18 and BCSE 13 gas sampling due to hazardous air quality outdoors from Canadian wildfire smoke. No field work today.

Lachat run LTER Lysimeter 20260319. Notes from run:

• Vial labeled T2 R4 1 should not exist, not enough volume listed. Ran as Vial T3 R4 1, that was not present and should exist.
• Vial T CF R2 1 missing from box, not run (no data notes)
• Vial T6 R3 3 present, should not exist. Not enough volume in vial to run.

Replaced Cadmium Column, acid washed dishes.

Prepared Color Reagent (2 L) 200 ml phosphoric acid 80 gm sulfanilamide, 2.0 gm N-1-naphthylethylenediamine dihydrochloride, Dilute to 2L with Nanopore H2O.

Measure and filter LTAR leachate, filter LTER soil extracts, LTAR and BCSE gas vial prep - Jordyn, Glori, Emily, Brian

Sort ASP1 forage - Sam, Jon

Prepared Standards.

Lachat run LTAR Lysimeter 20260616. Notes from run:

• Vial labeled ASP2 R1 N should not exist, not enough volume. Ran as vial ASP2 R2 N, that should exist and is missing.
• Vial ASP6 R2 S was missing from box and should exist, not run.

Rebury some T3, T4 T21 bags for station 5 as they were buried on the foot path in error, so moved further west between foot path and prairie strip.

Collect LTAR leachate - Emily, Brian

LTAR, BCSE gas chamber prep - Jordyn, Glori

Sticky traps - Jon, Sam

Sieve LTER soil -

Weigh LTER soil for extraction and moisture - Alyssa,

Sort ASP1 forage, empty ovens - Alyssa

Evacuate LTAR lysimeters - Olivia, Brian

Finish LTER soil sampling - Emily, Glori, Jon, Jordyn, Sam

Sticky traps - Brian, Olivia, Emily, Jon, Sam

Prepared 1M KCl

LTER soil sampling. T1-T5: with bucket auger, took one sample (to 25cm depth) from each station 1, 2, 3, 4 (skip station 5), alternating in the crop row and between T6, T7: with bucket auger, took one sample (to 25cm depth) from each station 1, 3, 4 (skip station 2 and 5). T8 and forest cored normally. Some mainsite samples were initially taken incorrectly, so had to be resampled in the afternoon and not all sampling finished today. - Bella, Emily, Glori, Jon, Jordyn, Sam

ASP1 forage sampling prior to second cutting. Stations 1, 2, 3: 1mS, 0.5mE to NW corner of 2 x 0.5m frame, oriented with the 0.5m ends on the east and west. Kept in field lab fridge until sorting to MEDSA, TRFPR, CICSP, DACGL, BRSNA (live volunteer canola), remainder label UNSRT. - Bella, Emily, Glori, Jon, Jordyn, Sam

removed ground sensors for forage harvest. ASP1F1 Found one 107 and one heat flux plate chewed and broken. Need to reapir.

LTER 9 gas and Hydrosense - Sam, Jon, Brian, Jordyn, Glori, Emily

Cut LTER corn paths - Brian, Sam, Glori

LTER gas chamber prep - Sam, Jon

LTAR 17 gas sampling and Hydrosense - Jordyn, Brian, Glori, Alyssa, Emily

Nitrogen Application Study gas and Hydrosense - Olivia

Bury T21 bags in T3, T4 stations and strips. Bury whirl-paks in their corresponding plot and station/strip. Stations: Measure or pace ~3m in a SW direction from each station flag. At that point, place a meterstick perpendicular to the tape measure at the 50cm mark on the meterstick. Bury T21 A at one end and T21 B at the opposite end. Bury both bags within a corn row as much as possible, so not disturbed during cultivation, etc. So, bags actually buried further than 1m apart. Strip: At the approximate center of the strip on the north end of the plot, measure or pace ~10m south into the strip. At that point, place a meterstick perpendicular to the tape measure at the 50cm mark on the meterstick. Bury T21 A at one end and T21 B at the opposite end. Each bag gets buried over an orange garden marker at about a 45-degree angle with the top of the bag about 1” below the surface and the marker sticking out of the ground only about 1-2”. For removal in 21 days - someone can pull up on the orange marker to easily remove the bags. For burial, use a trowel or narrow shovel to lift the soil, place the marker and bag, and then remove the trowel and press down the soil to ensure contact with the buried bag. A flag is placed at the 50cm point or midway between the buried bags, also within a corn row, to help locate them later. Flagging tape can be added in the prairie strips as well, to help with locating the bags later. - Emily, Brian, Jordyn, Sam, Glori, Jon

Make new LTER gas vials; all previous vials are awaiting analysis due to troubles with the old GC and switch over to a new GC - Alyssa, Olivia

LTAR gas chamber prep - Jon, Brian, Emily, Glori, Sam, Jordyn

Sticky traps - Jon, Brian, Sam

BCSE 12 gas sampling, Hydrosense - Emily, Glori

Collect LTER leachate - Sam, Jordyn

Measure and filter LTER leachate - Sam, Jordyn, Glori

Reshake then filter LTER T3, T4 soil extracts - Emily, Brian

Prep LTAR gas vials, totes - Jordyn, Glori

LTAR Moved IRGASON from tower 3 to tower 4 after calibration. Removed 1375 for calibration and will move to tower 1. SN1421 now on tower 4. Did this around 11:30. Raised sensors to 11'.

Weigh T3, T4 soil for extraction, moisture and T21 whirlpaks (90-100g/whirlpak) - Olivia, Brian, Jordyn

BCSE gas tote prep, dishes - Jordyn, Brian

Sticky traps - Sam, Emily

Prep BCSE gas chambers, evacuate LTER lysimeters - Jon, Glori

Nitrogen Application Study gas and Hydrosense sampling - Olivia

Cut MCSE corn paths - Olivia, Sam, Emily

Help Nameer and others raise the height of LTER Resource Gradient rainout shelters - Jon, Glori

LTER T3, T4 station and strip soil sampling. Four cores/station, two in the corn row and two between rows. Keep stations separate. Four cores spread across the prairie strip avoiding sampled areas, like gas chambers, sticky traps, and pit fall traps, and foot paths. - Brian, Sam, Jon, Glori

ASP5 canola sampling. R1-4, all stations: 0.66mS, 0.66mE to NW corner of 1.52 x 0.66m frame, oriented with the 0.66m ends on the east and west. 1.52m side perpendicular to canola rows. - Emily, Bella, Brian, Sam, Jon, Glori, Jordyn

Cut paths through LTER corn - Jon, Emily, Sam, Bella

LTAR 16 gas sampling and Hydrosense - Bella, Glori, Sam, Brian, Emily

NAS gas and Hydrosense sampling - Olivia

Install T3 tall flags and T-posts - Jon, Jordyn

Cut T1, T2 corn paths - Emily, Olivia, Jon, Bella, Brian, Stacey

Installed sensors in irrigated control REX plots. T7, R1,3,4,5,6. Looking for replacement for R2.

Dishes - Jordyn

BCSE new vial prep - Glori

Field lab clean-up - Brian

Dishes - Jordyn

Measure and filter LTAR leachate - Sam, Glori

Filter LTER soil extracts - Jordyn, Jon

Moved Anna autosampler to BenGc and reconfigured the system and tray. Found that the method was not detecting the "waste" inlet for the licor. Also, the tray is not perfectly realigned even after retraining. Looking into the problem. Running the remainder of Blesh lab run (1st part on Anna GC).

New 8890 GC installed by Rick Bailey yesterday. Completely different software than the 7890.

Also, repaired valve on BenGC. Rick brought the part, I changed it. The Gerstel switch from BenGC may be bad so traded with Anna GC switch.

LTAR gas chamber prep - Brian, Jon, Sam

Sticky traps - Brian, Emily

Collect LTAR leachate - Sam, Jon

BCSE 11 gas sampling and Hydrosense - Emily, Glori

Checked heat flux plates on tower one and two. Seem to be installed properly but values of one on each tower say otherwise. Need to ensure multiplier is correct.

Yesterday afternoon Moriz from JC lab swapped out the IRGASON on tower 2. Calibrated last night and we will install on tower three today. Tower 2 Irgason SN now 2482 (formerly tower 1).

BCSE gas chamber prep, then evacuate LTAR lysimeters - Emily, Brian

Sticky traps - Jon, Sam, Emily

Bury T21 soil bags. Bury whirl-paks in their corresponding plot. Measure or pace ~7m in a NE direction from the SW corner of each plot. At that point, place a meterstick perpendicular to the tape measure at the 50cm mark on the meterstick. Bury T21 A at one end and T21 B at the opposite end. In corn and poplar plots, the spacing should be adjusted to ensure both bags are buried within a row of wheat or poplars. Each bag gets buried over an orange garden marker at about a 45-degree angle with the top of the bag about 1” below the surface and the marker sticking out of the ground 1-2”. For removal in 21 days - someone can pull up on the orange marker to easily remove the bags. For burial, use a trowel or narrow shovel to lift the soil, place the marker and bag, and then remove the trowel and press down the soil to ensure contact with the buried bag. Try to disturb the plants as little as possible. A flag is placed at the 50cm point midway between the buried bags to help in locating them later. In T1-4 the flag should be in a corn row between the buried bags with all bags and flags within a row of corn. Wherever helpful, tie flagging tape on a plant above the flag, so it is easily located for collection.

• Emily, Brian, Jon, Sam, Glori, Stacey

Weigh LTER soil for extraction, moisture and T21 incubation - Glori, Jordyn, Brian around 11

BCSE and LTAR gas vial prep - Jordyn

Sieve LTER soil - Sam, Emily

LTER soil sampling - Bella, Brian, Emily, Glori, Jon, Jordyn, Sam

Pull and replace T4 T posts during cultivation - Sam, Jon

Pull T3 T-posts for herbicide - Emily, Sam

Sample ASP4 R1-3 wheat; all stations: 0.5mS, 0.5mE to NW corner of 2 x 0.5m frame. Clipped and counted wheat stems, recorded on bag. Sample mature weeds and cover crop, if present. - Jon, Brian, Bella, Glori

LTER Series 8 gas sampling - Brian, Bella, Jordyn, Olivia, Sam, Jon, Glori, Emily (Hydrosense)

Finish G8 plant sampling - Jon, Glori

Replace short station flags with tall in T1, cut station paths through the corn with a machete in T1R1, T2R1, T1R2 - Stacey

Nitrogen Application Study gas and Hydrosense sampling - Olivia

Finish prepping LTER gas vials and totes - Brian, Bella, Jordyn, Olivia, Sam

Prep more NAS gas vials - Olivia

Prepared Standards. Lachat run LTAR Lysimeter 20260602.

Added CS650 Sensors to the resource gradient to track VWC at 12", 24", and 36" in the irrigated block 5 between F5 and F6 (north end of plots 1 meter in). and rainfed block 2 between F6 and F4. Addresses 1=12" irrigated, 2=24" irrigated, 3=36" irrigated. 4=12" raidfed, 5=24" depth rainfed, and 6= 36" rainfed. During installation we used a 16" auger to make a hole large enough to be able to install the CS650s. staggered the install around the hole so no sensor overlapped another. Install in fresh soil at the circumference.

Ditchwitch trench from both locations back to the northeast corner of the grassy area where the trailer was housed.

GHG talk from Kevin - Alyssa, Bella, Brian, Emily, Glori, Jon, Jordyn, Sam

LTAR Series 15 gas sampling - Jordyn, Bella, Glori, Brian, Emily (Hydrosense)

LTER gas chamber prep - Sam, Jon

Replace G8 station flags, G8 plant species composition (Three NS transects per plot, main only. Each transect ~1m east of the station flags and numbered 1-3 based on the station number.) - Alyssa, Emily, Brian

G8 understory plant sampling ahead of herbicide/mowing. Location for each station: 2mS, 2mW of each station flag to the NE corner of 2 x 0.5m frame. All clipped bagged as UNSRT, then collected surface litter. - Jordyn, Glori, Bella, Emily, Sam, Jon

Weigh and filter LTER leachate - Olivia, Jordyn

Filter LTAR and BCSE soil extracts - Glori, Brian

Sticky traps (replace T6, T2) - Emily, Jon, Sam

Collect LTER leachate - Olivia, Jordyn

BCSE Series 10 gas - Sam, Glori, Emily (Hydrosense)

LTAR gas chamber prep - Emily

Reinstall chambers 11am following application of treatments (surface and 6" deep nitrogen). Nitrogen Application Study gas and Hydrosense sampling around 3pm - Olivia

Reconditioned Cadmium Column.

Finished dilutions from LTAR Lysimeter 20260519 run.

Prepared 1M KCL.

Prepared Ammonium Chloride Reagent (4L): 320 gms Ammonium Chloride 4.0 gms EDTA pH to 8.45 with NaOH, store

Lachat run LTAR Lysimeter 20260519. Notes from run:

• Samples ASP1 R4 C, S, and ASP3 R3 C were not present, not analyzed.

Sticky traps (pull T6 for herbicide and T2 fertilizer) - Sam, Emily,

Evacuate LTER lysimeters - Jon, Brian

Put tall flags into G1, G3, ASP2 -

BCSE gas chamber prep - Jon, Brian

Tower 4 (BAU1 north of pond lab) raised IRGASON to 1.75 m above avg canopy.

Installed 107/solar shield on rain gage vertical bar, but will remove, too close to tipping bucket. Also need proper connector.

Calibration of tower 1.

Removed GPR owned sensor SN2482 CSI for recalibration, installed JC instrument temporarily.

Weigh LTAR and BCSE soil for extraction and moisture - Glori, Jordyn

BCSE gas vial, tote prep - Glori

Grind LTAR plants - Brian

Pack CN - Jordyn

Acid washed dishes. Lachat run LTAR Lysimeter 20260505. Notes from run:

• Samples ASP3 R1 N and C were dumped before filtering, not run.

LTAR and BCSE (G1-5 one-week post side-dress in G1) soil sampling - Bella, Brian, Emily, Jon, Jordyn, Sam

Grind plants - Glori, Sam

Sieve LTAR and BCSE soil -

Pack CN - Olivia

Archive LTER air-dried soil -

Prepared Color Reagent (2 L) 200 ml phosphoric acid 80 gm sulfanilamide, 2.0 gm N-1-naphthylethylenediamine dihydrochloride, Dilute to 2L with Nanopure H2O.

Lachat run LTAR Lysimeter 20260421.

BCSE Series 9 gas sampling - Jon, Bella

BCSE Hydrosense - Emily

NAS gas and Hydrosense - Olivia

Use REACH to collect T7 microplot corners (Hsunyi trained) - Glori, Jordyn

Pull and immediately replace T-posts/sticky cards for cultivating in T4 and side dress in T3 - Sam, Jon

Finish woody maintenance - Jon, Sam

Help move T7 rainout shelters into the plots - Glori, Bella

Clean trucks - Brian, Jordyn

Dishes - Sam

Pack CN - Brian, Emily

Grind plants - Emily, Olivia

Grind LTER 2026 plants - Jordyn, Jon

Pack CN - Glori

Dishes - Sam

Data - Emily

Prepared standards. Lachat run LTAR Lysimeter 20260407. Notes from run:

• Vial ASP1 R1 S missing from box, not run.

LTAR gas chamber prep, immediately prior to gas sampling. Agronomic plans changed and gas sampling needed to be moved from 6/19 to 6/18 - Jon, Sam, Glori, Brian, Emily, Jordyn

LTAR Series 14 gas sampling - Jon, Sam, Glori, Brian

LTAR Hydrosense - Emily

Woody maintenance - Brian, Jordyn

Sticky traps - Emily, Jon, Sam, Olivia

Collect LTAR leachate - Brian, Jordyn

BCSE gas chamber prep - Glori

NAS gas and Hydrosense - Olivia

Acid washed dishes.

Prepared Ammonium Chloride Reagent (4L): 320 gms Ammonium Chloride 4.0 gms EDTA pH to 8.45 with NaOH, store

Prepared fresh Phosphate Buffer (1L) 28 gms Sodium Hydroxide pellets 50 gms sodium phosphate dibasic heptahydrate dilute to 1 L with nanopure.

Measure and filter LTAR leachate - Brian, Jordyn

Filter LTER soil extracts - Jon, Glori

Pack CN - Jon

Grind LTER 2026 plants - Sam

BCSE gas vial, tote prep - Glori

The added REX radios caused the RF407 network to go into a nework storm. I turned off T7R4, R5, R3 and R1. The network traffic went back to normal. I restarted T7R1 and it's stable so far.

Sticky traps, pull T1 and T3 for side dress - Jon, Emily, Sam, Brian

Evacuate LTAR lysimeters - Jon, Sam

Prepared 1M KCL. Replaced all Lachat reagent tubing.

Added radios to the T7R3, R5 and R4 REX loggers. Updated the OS on R4 and R5. Communication appears to work on all REX loggers.

Weigh 2nd June soil for extraction and moisture - Jordyn, Glori

Grind LTER plants - Alyssa train Jordyn and Glori

Pack CN - Jordyn

raised the antenna on the Switchgrass tower at lux arbor to improve connectivity.

Raingauge at Lux Arbor was plugged. I dumped the water in the funnel and cleaned it. I changed the antenna at the weather station to a 900 Mhz 8dbi omnidirectional antenna.

LTER 2nd June soil sampling -

Pull T2 sticky cards, T-posts for side dress -

Woody maintenance -

Reconditioned Cadmium Column.

Lachat run LTAR Lysimeter 20260326. Notes from run:

• Sample BAU2 R2 N ran as sample BAU2 R4 N. BAU2 R4 N should have sample present, and BAU2 R2 N had volume listed as 0 ml
• Sample labeled as ASP1 R1 S was present, but volume was listed as 5ml (vial was full). No other missing samples, so ran as labeled. Volume listed incorrect?

LTAR Gas Sampling Series 13 - Jon, Sam, Jordyn, Glori; LTAR Hydrosense - Emily

Install LTAR ASP1, ASP3, and BAU1 flags - Brian, Emily

Woody maintenance - Jon, Emily

Acid washed dishes

Finished dilutions for Lachat run LTAR Lysimeter 20260309.

Data entry - Brian

CN packing - Sam

Dishes - Glori

Weigh plants - Jordyn

LTER Series 7 gas sampling - Brian, Jon, Sam, Bella, Glori; Hydrosense - Emily

LTAR gas chamber prep - Jordyn

Replace G1-3 station flags - Emily, Glori

Lachat run LTAR Lysimeter 20260309 notes from run:

• Vial ASP1 R1 N present, not enough volume listed to filter. Ran as vial ASP1 R1 S that should exist and was not present in sample box.
• Vials ASP2, R3 N, ASP4 R1 N, AND BAU2 R2 S all listed as not enough volume to filter. No other missing vials, volumes listed incorrect? Vial BAU2 R2 S not run, only 1/4th full, not enough to run sample.

Sticky traps -

BCSE Series 8 gas sampling - ; Hydrosense - Emily

LTER gas chamber prep -

LTER gas vial, tote prep - Glori

Weigh plants - Jordyn

LTER field lab clean-up, organization -

Prepared Color Reagent (2 L) 200 ml phosphoric acid 80 gm sulfanilamide, 2.0 gm N-1-naphthylethylenediamine dihydrochloride, Dilute to 2L with Nanopure H2O.

Lachat run LTER Lysimeter 20251119

All 2025 soil and Leachate LTER, LTAR, and GLBRC Lachat samples complete

Prepared Standards

Lachat run LTER Lysimeter 20251027

Measure and filter LTER leachate -

BCSE gas vial and tote prep -

Filter NAS soil extracts for Olivia -

Collect LTER leachate -

Sticky traps -

BCSE gas chamber prep -

Field lab cleaning and organization - Brian, Jon, Emily, Sam, Glori, Bella, Jordyn

Pack CN - Jordyn, Bella

Weigh LTER T3, T4 cover crop plants, then LTAR ASP2 - Bella, Brian, Jordyn

Air Temperature sensor at the Hancock Weather station failed. It's returning -100 C. and 112 logger is having trouble sending data.

I stopped the program to help with the download but it had no effect. I will restart the program.if I can't get it to download and check in a few days. The status table can be read but the status summary is empty.

Evacuate LTER lysimeters - Sam, Emily, Glori

NAS soil, gas, Hydrosense sampling - Olivia

tower 4 (BAU1) ground sensors removed for side dressing around 10AM. Reinstalled around 330PM.

Acid washed dishes.

Finished dilutions for Lachat run LTER Lysimeter 20250929.

LTAR Tower 3. EE-181 probe, Adjusted the range to 1V and made sure the wires were connected. It's sending reasonable values now.

LTAR 12 gas sampling - Brian, Jon, Glori, Jordyn

LTAR Hydrosense- Emily

Remove and replace T4 T-posts during rotary hoeing - Olivia

NAS gas and hydrosense sampling - Olivia

Dump plant and soil samples - Emily, Jon

Data entry - Brian, Jordyn

Dishes - Glori

Weigh soil tins - Jordyn

Pack CN - Emily, Olivia

power cycled cell modem at Lux Arbor to restore connection. Adjusted solar panels to the summer position.

Pack CN - Jon, Sam

LTAR gas vial, tote prep - Glori

Dishes - Jon, Jordyn

Sort ASP1 plants - Brian, Emily

Prepared Ammonium Chloride Reagent (4L): 320 gms Ammonium Chloride 4.0 gms EDTA pH to 8.45 with NaOH, store.

Reconditioned Cadmium Column.

Lachat runs LTER Lysimeters 20250908, 20250929.