Field Notes

<--2013-07-11 09:10:00 | 2013-07-28 10:30:00-->
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Tonzi: 2013-07-11 10:30:00 (DOY 192)
Author: Joe Verfaillie
Others: Siyan

Summary: Standard fieldwork, collected data including z-cams - previous Floor CR1000 card failed to format, tram okay, CO2 profile pump broken

Tonzi
2013-07-11

I arrived about 10:30 with Siyan. It was clear and hot with a breeze from the south southwest. Things look very dry with some trees turning brown and looking dead. The pond is as low as I have ever seen it.

The tram was running just fine.

The pump for the CO2 profile system had blown its diaphragm. I have a spare, but I should order a couple more and up one in the field for a quick swap. I pulled the old pump, unplugged the LI820 and unplugged the CR10x.

I meant to bring two IRGAs to swap for calibration, but I forgot them in the lab.

I serviced the z-cams and check their clocks before swapping cards. Camera 1 and 2 seem to be off 4 to 8 minutes, z-cam three seems to be within a minute. Ill unmounts them and reset the clocks next time. I also checked the times on the data loggers that control the cameras. The CR200 on z-cam 3 was 10 minutes fast. At 10:46 I reset it to 10:35. The CR10x on z-cams 1 and 2 was 18 minutes slow. At 10:56 I reset it to 11:14. I also unpowered the CR10X briefly while I removed the Licor PAR sensor that was idle in that box.

I collected all data. The Floor CR1000 card failed to format, but data was still collected by winflux. I checked the card, found no problems and when I reinserted it in the CR1000 it formatted in 2 minutes working just fine.

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2013-07-11	TZ_floor	29
2013-07-11	TZ_road	38.5
2013-07-11	TZ_tower	33.7

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)
2013-07-11	1	25.1
2013-07-11	102	20
2013-07-11	2	18.1
2013-07-11	245	13.4
2013-07-11	3	20
2013-07-11	5	24.6
2013-07-11	72	15.2
2013-07-11	79	17

Water Potential - mode: raw

Time	Species	Tree	readings (bar)
2013-07-11 12:00:00	OAK	102	-46	-37.5	-29
2013-07-11 12:00:00	OAK	35	-37.5	-30	-37
2013-07-11 12:00:00	OAK	92	-30	-32	-34
2013-07-11 12:00:00	PINE	OLD	-6	-21	-4.5	-20	-14
2013-07-11 12:00:00	PINE	YNG	-3	-1	-5	-8.5	-3	-5