Field Notes

<--2023-03-16 11:50:00 | 2023-04-14 14:00:00-->
Other sites visited today: Vaira

Tonzi: 2023-03-30 12:00:00 (DOY 89)
Author: Joe Verfaillie
Others:

Summary: Almost no leaves on trees, still very wet, Tower 7500 reading bad but reconnect of head seemed to fix it. Well level up a lot had to reposition Road well sensor, added desiccant to zcam 2 and 3, re-glued dendrometer sales #2 and #4.

Tonzi
2023-03-30

I arrived at about 12:00 noon PDT. It has been raining more in the last couple days. The trees here still have very few leaves – maybe 5-10%. The ground is totally saturated with water in every small hole. There are some scattered flowers that look a bit confused as to whether it’s time to bloom or not.

I collected data from the tower. The 7500 was initially not reading. I thought it was water on the windows so didn’t look at the numbers carefully. I didn’t notice any water when I lowered the 7500 so I disconnected it and reconnected the cable. It seemed to be running okay. When I checked the numbers again they looked fine.
Tower read: 431.2ppm CO2, 383.1mmol/m3 H2O, 8.9C, 99.0kPa, 103.9SS
Floor read: 418.7ppm CO2, 495.7mmol/m3 H2O, 13.4C, 99.1kPa, 100.9SS

I did the soil moisture measurements, DBH, and well readings – the well levels have come up a bunch. The road well was off scale reading 16.0psi. I raised the sensor to a second red electrical tape on the cable and then got readings of 5.688, 5.674, 5.679. I also used a really old netbook that was still running XP to collect the data. It seemed fine and not too much trouble to do that way – temporary fix that will continue indefinitely.

I initially could not connect to the Floor Well CR200 again. I called Campbell and they said since I could talk to the CR200 with the Device Config Utility it was likely that the setup in LoggerNet was corrupt. Deleting and making a new setup for the CR200 worked just fine.

I service the z-cams adding tins of desiccant to #2 and #3. #2 had a little condensation in its window.

I re-glued the larger scales on dendrometer #2 and #4. I sanded both faces and wiped them with alcohol before using superglue to reattach them carefully. I hope I didn’t glue the slider in place. The readings changed a little bit so will need to see if it matters.

Some broken wires on the cow fences but not in bad shape. I found the soldering kit near the Tower fence where I apparently had left it last time. Some animal had dumped it out on the ground.

I left at about 15:00 PDT

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2023-03-30	VR_well	46.8
2023-03-30	VR_pond	22.34
2023-03-30	TZ_floor	16.75
2023-03-30	TZ_road	24.7
2023-03-30	TZ_tower	19.15

No TZ Moisture Point data found

No VR Moisture Point data found

No TZ grass heigth found

No VR grass heigth found

Tree DBH

Date	Tag#	Reading (mm)
2023-03-30	1	12.9
2023-03-30	102	6.3
2023-03-30	2	4.3
2023-03-30	2	4.7
2023-03-30	245	7.4
2023-03-30	3	4.9
2023-03-30	4	6.8
2023-03-30	5	12.7
2023-03-30	6	5.6
2023-03-30	7	13.7
2023-03-30	72	17.6
2023-03-30	79	19.3