Field Notes

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Tonzi: 2011-08-31 09:30:00 (DOY 243)
Author: Joe Verfaillie
Others: Siyan, Laurie

Summary: Standard field work, new sunset z-cam program works, strange growths on tree leaves, broke tree corer, trees beginning to yellow.

Tonzi
2011-08-31

I arrived about 10:30am PDT with Siyan and Laurie. It was clear, sunny and hot with a little breeze on the ground and a much stronger breeze from the west at the top of the tower. The grass and ground is very dry. The trees look okay, but some are yellowing and some were losing leaves in the breeze.

I serviced the z-cams. The new CR10x and CR200 programs that take photos in relation to sunset seem to be working. On August 9th the photos started at 4pm PST and by August 31st the photos started at 3:30pm PST. An advance of almost half an hour.

Radiation sensors at the top of the tower were clean. Some bird droppings on the IRGa but I think the path was okay.

The tanks for the CO2 profile system read 1600psi of N2 and 1000psi of CO2.

Siyan did standard field work.

Tram was running.

The Floor computer was hung up again. Its data shows that it has been running sporadically quitting and starting at random times of the day. I need to rebuild some field computers.

I helped Laurie pull cores for trees near the soil CO2 fence. The big tree (Luikang’s tree) seems to be hollow or rotten in the center. We broke the corer on a small tree.

I found some strange looking growths on many of the oak trees. Some of them were bright pink, spiky growths of different sizes on the surface of the leaves. Others were more yellow or green on the stems. There were also small spheres and some fuzzy pink growths.

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2011-08-31	TZ_floor	23
2011-08-31	TZ_road	32.6
2011-08-31	TZ_tower	28.4

No TZ Moisture Point data found

No VR Moisture Point data found

No TZ grass heigth found

No VR grass heigth found

No TZ Tree DBH found

Water Potential - mode: raw

Time	Species	Tree	readings (bar)
2011-08-31 12:03:00	OAK	UNKNOWN	-51.5	-41	-48.5	-31.5	-42	-38.5
2011-08-31 12:03:00	PINE	OLD	-20	-3	-20.5	-21.5
2011-08-31 12:03:00	PINE	YNG	-19.5	-5	-9	-17.5	-3.5

No TZ Grass Biomass data found

No TZ OakLeaves Biomass data found

No TZ PineNeedles Biomass data found

17 photos found

20110831TZ_Acorn.jpg ( 2011-08-31 10:42:48 ) Full size: 3648x2736
Blue oak acorn

20110831TZ_BeetleRemains.jpg ( 2011-08-31 12:12:15 ) Full size: 3648x2736
Dead beetle shell in the dead grass

20110831TZ_FloorErrorScreen.jpg ( 2011-08-31 11:16:54 ) Full size: 3648x2736
Windows error message on Floor computer

20110831TZ_FloorFromTower.jpg ( 2011-08-31 13:17:24 ) Full size: 3648x2736
View of the Floor site from the tower top at the oak woodland

20110831TZ_LaurieCoring1.jpg ( 2011-08-31 13:00:48 ) Full size: 3648x2736
Laurie taking oak tree ring cores

20110831TZ_LaurieCoring2.jpg ( 2011-08-31 13:01:06 ) Full size: 3648x2736
Laurie taking oak tree ring cores

20110831TZ_LeafGrowth1.jpg ( 2011-08-31 10:36:11 ) Full size: 3648x2736
Remains of wasp galls on oak leaves

20110831TZ_LeafGrowth2.jpg ( 2011-08-31 10:36:27 ) Full size: 3648x2736
Wasp galls on oak leaves

20110831TZ_LeafGrowth3.jpg ( 2011-08-31 10:36:50 ) Full size: 3648x2736
Wasp galls on oak leaves

20110831TZ_LeafGrowth4.jpg ( 2011-08-31 10:37:24 ) Full size: 3648x2736
Wasp galls on oak leaves - urchin

20110831TZ_LeafGrowth5.jpg ( 2011-08-31 10:37:43 ) Full size: 3648x2736
Wasp galls on oak leaves - urchin

20110831TZ_LeafGrowth6.jpg ( 2011-08-31 10:38:12 ) Full size: 3648x2736
Wasp galls on oak leaves - urchin

20110831TZ_LeafGrowth7.jpg ( 2011-08-31 10:38:32 ) Full size: 3648x2736
Wasp galls on oak leaves - urchin

20110831TZ_LeafGrowth8.jpg ( 2011-08-31 10:41:59 ) Full size: 3648x2736
Wasp galls on oak leaves - crystalline

20110831TZ_LeafGrowth9.jpg ( 2011-08-31 10:42:11 ) Full size: 3648x2736
Wasp gall on oak leaf

20110831TZ_LeafGrowth10.jpg ( 2011-08-31 10:43:23 ) Full size: 3648x2736
Wasp gall on oak leaves - crystalline

20110831TZ_SiteFromTower.jpg ( 2011-08-31 13:17:53 ) Full size: 3648x2736
View of the oak woodland from the tower top with green trees and dead grass