Field Notes

<--2002-08-29 04:50:00 | 2002-09-18 15:06:00-->

Tonzi/Vaira: 2002-09-05 09:00:00 (DOY 248)
Author: LiuKang Xu
Others:

Summary: Standard fieldwork, all seems well

When: Sept 5th, 2002 D248
Where: Tonzi/Vaira Ranches
Who: Liukang Xu
Weather Sunny, upper 80s, comfortable.

Trip Purpose: check 3 flux systems and download data, soil moisture probe reading, dendrometer reading, finish 3 A/Ci curves for oak leaf at Tonzi Ranch,

Overall: All three flux systems running great last week. Nancy’s datalogger 5 back to normal last week after replaced the battery. Jianwu’s soil CO2 sensor work good. Lot of trees have more than half of the leaves turned brown, some small trees have more than 80% leaves turned brown.

Dendrometer reading at 1:35 pm

date 9/5/2002
jday d248
time_pst 1:30
treetag
tree71 6.7
tree72 8.2
tree77 11.4
tree78 20.2
tree79 8
tree245 4
tree248 6
tree250 7.2
tree252 11.5
tree255 6.6

Soil moisture probe reading:

Tonzi Vaira
7931AF 402165 574B4B 402FF3 57632 573FAA 7933FDE
9/5/2002 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 6.20 3.30 7.40 1.27 4.57 0.27 1.77
15 to 30 cm 11.77 11.47 10.60 10.40 10.70 5.47 8.70
30 to 45 cm 15.33 12.27 16.60 12.93 4.60 10.40 13.73
45 to 60 cm 14.77 5.63 21.37 11.77 8.63 18.43 19.27

Tower Flux system: Fence and sonic program OK. PV reading 14.3, 16.3, 2.2 at 12:45pm with fully charged battery. After download data, reboot pc, gillsonic output as follows;

mean std
w 1.5 0.88
u 0.68 1.132
v 2.99 0.99
Tsonic 24.436 0.518
q 1.62 0.06
CO2 1.60 0.03

Floor Flux system: Fence and flux running OK. PV reading 13.9, 16.3 and 1.9 around 11:30 am

mean std
w 0.150 0.169
u 0.100 1.068
v 0.560 0.562
Tsonic 27.000 0.542
q 1.798 0.004
CO2 1.572 0.007

Vaira Ranch: arrived at 13:10, Fence Ok, PV reading 13.5, 5.6, and 2.6 at half fully charged battery. Soil moisture probe reading (see above). Sonic outputs looks Ok after finished all the tasks.

mean std
w 0.280 0.315
u 0.350 0.907
v 0.540 1.017
Tsonic 22.874 0.588
q 1.684 0.018
CO2 1.579 0.012

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.