Field Notes

<--2004-04-28 10:00:00 | 2004-04-30 13:30:00-->
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Tonzi: 2004-04-29 09:17:00 (DOY 120)
Author: Ted Hehn
Others:

Summary: Cow fence down, new N2 tank, calibrated LI-800, CO2 tank left on - emptied, Installing folding radiation boom

When: Thur-Fri, 29-30 Apr04, JD120-121
Where: Tonzi Ranch
Who: Ted Hehn
Weather Clear & warm

Trip Purpose: Install pivot boom arm on tower

Tonzi Ranch:

A cow got into the tower exclosure. Appears only damage was to the fence wire itself.

9:17 gillsonic.exe running at tower

Remove Scott gas N2 tank from tower profile system. Install new PRAX Air nitrogen tank for CO2 profile system 1375 PSI

10:08 run zero/span on LI800 sn AKC-0479
with Nitrogen the reading is 0.723 on PC and on data logger
with 425ppm CO2 reading 411.1 on pc , data logger 411.2

I left the CO2 gas on for about 1 hour and drained the cylinder --- sorry!!!

Begin pivot boom arm installation

Dropped the shelf bracket on the tower by 8-10 inch to fit boom arm

Move Pyranometer/Licor PAR mount table moved over 3.5 feet to west to install boom arm.

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