Field Notes

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Tonzi: 2004-05-06 09:40:00 (DOY 127)
Author: Dennis Baldocchi
Others: Siyan

Summary: Siyan's first visit, Little green grass remains, new co2 cal tank for tower co2 profile. clip plots

Where: Tonzi
When: May 6, 2004
Who: Dennis Baldocchi and Siyan Ma

Arrived at the Tonzi ranch around 940 PST. Mild day, light winds. Teaching Siyan the ropes.

Little green grass remains.

Tonzi pc, aok
W: -.19, u: 1.7; v: 2.0; T: 25.2; q: 1.9; C 1.7v.
Downloaded data and reset PC208. System is up and running

Checked power generation system. 4.2 amp load, 13.5 v Batt volt

CR 10x
Checked soil TC data system. All seem ok. Tc soil about 19C, Tair 21C, RH 34% and P 99.1 kPa
CR 23x
Soil moisture sensors are on scale and drying down., ~0.4 v.

Floor system checked.
Power 2.3 amp, 14.0 batt volt, 15.0 amp solar generation

Floor 1016
W: 0.38; u: 0.35; v: 1.3; T: 25.9; q: 2.2; C: 1.6

CR 10x2
Noticed that loc 23 and 24 had same value (2.0152)
Noticed that loc 25 and 26 had same value ( 0.67173)

Downloaded data

Installed new CO2 calibration tank on the profile system
2000 psi, 425.93 ppm
Changed flow from 30 to 18 psi

Took LAI (64.4,65.2, 47.1 cm2)/400 cm2

Field Data

No tank data

No TZ Well data found

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

No water potential data found

No TZ Grass Biomass data found

No TZ OakLeaves Biomass data found

No TZ PineNeedles Biomass data found