Field Notes

<--2008-03-06 10:30:00 | 2008-03-27 00:00:00-->

Tonzi: 2008-03-20 00:00:00 (DOY 80)
Author: Dennis Baldocchi
Others: Youngryel Ryu


Perfectly clear, mild spring day. Grass is green and functioning, soil is moist.
Trees across the ranch and range are starting to leaf out this past week.
1. Moved tram system to near the understory eddy flux system. The tram needs fine adjustment, but most is done. It is now in the footprint of the understory eddy flux system.
2. Need to replace small screws (with allen wrench fitting) to connect one span of track. The nut fitting was starting to strip and we couldn’t work the screw all the way in. I prefer replacing them so they can be removed easily in the future.
3. The large Nuts holding track to tripods had some rust. A squirt with wd-40 may help
4. We need a 1 inch wrench at the site for these bolts
Checked out the soil CO2 probes. The tree with the probes has NOT leafed out yet. CO2 levels in the soil are fairly similar at the tree location (without grass) and under the grass
Checked flux systems and they were operating well.
Youngryel took spectral reflectance measurements
1600 went to Vaira. Checked flux system. Aok. Cleaned radiometers. Bird crap on Rnet lite on the tram system (it is still at Vaira). Also faint film on 4 band radiometers. Cleaned with alcohol.
Youngryel took spectral reflectance data

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

Tree DBH

DateTag#Reading (mm)

No water potential data found

No TZ Grass Biomass data found

No TZ OakLeaves Biomass data found

No TZ PineNeedles Biomass data found

0 photos found

Graphs display:
16 sets found

No data found for TZ_Fenergy.
11 TZ_tmet graphs found

Tonzi Tower Met: Temperature and Power

Tonzi Tower Met: Solar Radiation

Tonzi Tower Met: IRT Sensors

LED Sensor Incoming

LED Sensor Outgoing

4-Band Solar Radiation

Air Temperature Profile

Relativity Humidity Profile

Tonzi Tower PRI

SRS PRI/NDVI

SRS NDVI

11 TZ_soilco2 graphs found

Tonzi Soil CO2 Profile: Open (East) CO2

Tonzi Soil CO2 Profile: Tree (West) CO2

Tonzi Soil CO2 Profile: Open (East) Temperatures

Tonzi Soil CO2 Profile: Tree (West) Temperatures

Tonzi Soil CO2 Profile: Upper CO2

Tonzi Soil CO2 Profile: Lower CO2

Tonzi Soil CO2 Profile: Upper Temperatures

Tonzi Soil CO2 Profile: Lower Temperatures

Tonzi Soil CO2 Profile: Power and Temperature

Tree 2 Soil CO2

Tree 2 Soil Temperature

Can't check TZ_mixed
3 TZ_mixed graphs found

Tonzi PPT

Tonzi CO2 and H2O Densities

Air Pressure

No data found for TZ_fflux.
8 TZ_fmet graphs found

Soil Heat Flux

Tonzi Soil Temperature Set A

Tonzi Soil Temperatures Set B

Tonzi Soil Temperatures Set C

Tonzi Soil Temperature Set D

Well Level

Well Water Temperature

Soil Water Potential

No data found for TZ_tram.
3 TZ_co2prof graphs found

Tower CO2 Profile Concentrations

Tower CO2 Profile Cell Pressure

CO2 Profile Sensor Temperature

No data found for TZ_irt.
1 TZ_windprof graphs found

Wind Speed Profile

No data found for TZ_tflux.
2 TZ_sm graphs found

Floor Solar Radiations

TZ Soil Moisture

Can't check TZ_met
1 TZ_met graphs found

Floor and Tower RH

Can't check TZVR_mixed
No data found for TZ_osu.
No data found for TZ_fd.
Tonzi Z-cam data

plot of Tonzi z-cam LAI

plot of Tonzi z-cam gap fration