Field Notes

Where: Tonzi Ranch
Who: DDB
When: July 3, 2003, d184

Arrived ~10:00. It was clear and warm. Light breeze. Brought the aluminum arms for installing the Handar wind profile array.

Checked the tower system. The span gases are not being discharged at a high rate, which is good. N2 900 psi, CO2 1800 psi.

Traces on the flux system looked reasonable. No spiking. W: -.12; u: 1.49; v: 3.15; T: 29.4; q: 0.70; c: 1.59. Signals were on scale. Downloaded data and rebooted.

Battery array was 13.1 volt.

Checked the filter on level CO2_2. It was mildly dirty. Probably should be cleaned in a few weeks.

Cleaned the understory net radiometers. Re-oriented the Rnet 99 0354. Notice the path to the tent was right under the view of the net. It is now pointed towards the northwest.

Floor system power unit, 13.5 v; 11.6 amps generated; 2.5 amps load.

Time on cell phone and pc were 10:16. Signals looked reasonable. W: -0.59; u: 1.25; v-0.27; T 31; q: 1.21; C: 1.63.

Tair: 27.5; rh 15.5

MD9_6tx.exe was added to PC 208 task to write cr23x6.dat with file names for each day. Need to check that it works next week. MD9_5 and MD9_7 are working fine.

Took Soil moisture measurements

Dendrometers

12:25 At vaira Ranch, Hot and dry and breezy. Tair 32 C, Rh 11.5%

Downloaded data, cleaned radiometers, took soil moisture data and checked battery

13.4 volts, 9.9 amps, load was 3.7 amps,