Field Notes

<--2002-07-11 15:50:00 | 2002-07-25 09:00:00-->

Tonzi/Vaira: 2002-07-19 09:00:00 (DOY 200)
Author: LiuKang Xu
Others:

Summary: Tower down for a week due to power problem, swapped IRGA at Vaira

When: July 19, 2002 D200
Where: Tonzi/Vaira Ranches
Who: Liukang Xu, Jianwu Tang
Weather Sunny, little windy, temperature 100 F

Trip Purpose: Check 3 flux systems and download data, soil moisture probe reading, dendrometer reading, A/Ci curve for oak leaf at Tonzi Ranch, Jianwu check soil CO2 sensor and download data.

Overall: Floor and Vaira flux systems running great last week. Tower system was down again, around 10:15, I reported this problem to Ted. The voltage of the two battery for Jianwu’s soil CO2 sensor was low. He replaced them with batteries from fence system at floor and tower after got the permission from Ted.

I also finished 3 A/Ci curves.

Dendrometer reading:

D200
date 7/11/2002 7/19/2002
jday
time_pst 6:10am 12:45
treetag
tree71 7.8 7.7
tree72 8.3 8.3
tree77 12.2 12
tree78 18.2 18.2
tree79 9.3 9
tree245 4.5 4.5
tree248 7.3 7
tree250 8.3 8.1
tree252 12.3 12.2
tree255 8.2 7.8
Xu

Floor system: Fence working, flux system was running. All dataloggers communicate with pc. PV reading 13.4, 12.4, and 2.0 at 10:16. battery fully charged. Gillsonic output after reboot the laptop;

mean std
w 0.16 0.177
u -1.03 0.353
v 0.97 0.342
Tsonic 30.54 0.746
q 2.801 0.005
CO2 1.621 0.011

Tower system: not running for last whole week according to Ted, due to the power line problem.

Soil moisture point probe reading.

Tonzi Vaira
7931AF 402165 574B4B 402FF3 57632 573FAA 7933FDE
7/19/2002 canopy canopy open drip line open open open
Xu tower understory solar panel sap flow resp trans solar panel flux tower
0 to 15 cm 7.03 3.90 6.87 1.90 6.40 0.70 1.60
15 to 30 cm 12.23 12.50 12.23 11.40 13.80 6.50 10.10
30 to 45 cm 16.80 13.10 18.23 13.13 7.53 10.47 13.57
45 to 60 cm 15.70 8.40 23.00 14.23 11.00 18.20 19.50

Vaira Ranch: arrived at 11:20. Fence Ok, flux system also running great last week. PV reading 13.4, 14.8, and 2.9 at 11:40 am with fully charged battery. Soil moisture probe reading (see above). Replaced li-cor 7500 sn 0073 came off and sn 0042 went on. Sonic outputs looks Ok after finished all the tasks, see below;

mean std
w 0.44 0.447
u 1.46 0.591
v -1.57 0.658
Tsonic 31.65 1.64
q 2.9 0.009
CO2 1.538 0.028

0 photos found

Graphs display:
16 sets found

No data found for TZ_Fenergy.
11 TZ_tmet graphs found

Explore the graph:Tonzi Tower Met: Temperature and Power in a new window

Explore the graph:Tonzi Tower Met: Solar Radiation in a new window

Explore the graph:Tonzi Tower Met: IRT Sensors in a new window

Explore the graph:LED Sensor Incoming in a new window

Explore the graph:LED Sensor Outgoing in a new window

Explore the graph:4-Band Solar Radiation in a new window

Explore the graph:Air Temperature Profile in a new window

Explore the graph:Relativity Humidity Profile in a new window

Explore the graph:Tonzi Tower PRI in a new window

Explore the graph:SRS PRI/NDVI in a new window

Explore the graph:SRS NDVI in a new window

No data found for TZ_soilco2.
Can't check TZ_mixed
3 TZ_mixed graphs found

Explore the graph:Tonzi PPT in a new window

Explore the graph:Tonzi CO2 and H2O Densities in a new window

Explore the graph:Air Pressure in a new window

No data found for TZ_fflux.
8 TZ_fmet graphs found

Explore the graph:Soil Heat Flux in a new window

Explore the graph:Tonzi Soil Temperature Set A in a new window

Explore the graph:Tonzi Soil Temperatures Set B in a new window

Explore the graph:Tonzi Soil Temperatures Set C in a new window

Explore the graph:Tonzi Soil Temperature Set D in a new window

Explore the graph:Well Level in a new window

Explore the graph:Well Water Temperature in a new window

Explore the graph:Soil Water Potential in a new window

No data found for TZ_tram.
No data found for TZ_co2prof.
No data found for TZ_irt.
No data found for TZ_windprof.
No data found for TZ_tflux.
2 TZ_sm graphs found

Explore the graph:Floor Solar Radiations in a new window

Explore the graph:TZ Soil Moisture in a new window

Can't check TZ_met
1 TZ_met graphs found

Explore the graph:Floor and Tower RH in a new window

Can't check TZVR_mixed
No data found for TZ_osu.
No data found for TZ_fd.