Field Notes

<--2017-09-14 14:30:00 | 2017-09-21 10:30:00-->
Other sites visited today: Vaira | Twitchell Alfalfa

Vaira: 2017-09-21 09:30:00 (DOY 264)
Author: Siyan Ma
Others: Joe, Daphne

Summary: Standard fieldwork, spectrum and litter collections, upgraded soil co2 system, upgraded Tonzi tower met CR1000 OS

When: Date: 9/21/2017 , Watch Time: 9:30 am .

Where: Tonzi/Vaira Ranch

Who: Siyan, Daphne, Joe

Weather: sunny

Phenology: The little pond dried out; much less green leaves on the tree.

Summary

Swapped memory stick of Licor 7550 at three sites.
Siyan checked and downloaded phenocam images and met data from PC at Vaira; Daphne did at Tonzi.
Joe re-installed soil CO2 probes at Vaira, 3 locations and 4 depths at each location
Read dendrometers
Measured soil moisture
Measure groundwater well and download GlobalWater data
Measure midday water potential of oak leaves
Collect grass litter samples
Spectrum of Vaira grassland
Download IRT data (Daphne)

Vaira_Grass Site

Downloaded Phenocam images.
Swapped the memory stick of Licor 7550

Checked the fans of air temp and relative humidity sensors at Vaira. YES!
Downloaded met data.
Joe re-installed a new soil CO2 profile system
Checked levels of Radiation sensors, clear up surfaces. (Daphne)
Checked rain gage, make sure not clogged. (Daphne)
Closed gate and set up fence. YES!

Tower & Floor (Daphne)

We arrived at Tonzi around 12:00. It was partly cloudy and cool, with fluffy/stormy clouds to the N and E.

I updated the Tonzi tower met CR1000 sn 50890 OS from version 27 to version 31.08. I reset the IP address to 192.168.2.100, subnet to 255.255.255.0, IP Gateway to 192.168.2.1, and enabled FTP with user Tower and pw biomet.

I downloaded tower met, tower GHG, floor met/sm, floor GHG, soil CO2 data, and IRT data. At the soil CO2 CR23X, I synced the clock: when station was 1/7/2020 11:21:28, I changed it to 9/21/2017 12:08:26. I also swapped zcam cards.

I cleaned the radiation and flux sensors at the tower and the floor. When I collected tower GHG, a fresh USB stick that just came from Vaira was not recognized by the LI-7550, so I emptied and re-used the current USB.

Tower LI-7500 readings:
CO2 397.7
H2O 368.9
T 17.9
P 98.8
SS 87.5 --> 88.5 after cleaning

Floor LI-7500 readings:
CO2 403.9
H2O 335.4
T 22.5
P 98.9
SS 96.3 --> 99.9

We left Tonzi at 14:20 and stopped at Vaira to pick up Joe before heading home.

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2017-09-21	TZ_floor	24.8
2017-09-21	TZ_road	34.3
2017-09-21	TZ_tower	29.8

mode = both
Moisture Point Probes TZ
Array ( [0] => Tower [1] => Floor_South [2] => Floor_East [3] => Floor_West [4] => Soil_Transect_4 [5] => Soil_Transect_3 [6] => Soil_Transect_2 [7] => Soil_Transect_1 [8] => SoilCO2_West_A [9] => SoilCO2_West_B [10] => SoilCO2_West_C )

Date	DOY	Rep	Depth	Tower	Floor_South	Floor_East	Floor_West	Soil_Transect_4	Soil_Transect_3	Soil_Transect_2	Soil_Transect_1	SoilCO2_West_A	SoilCO2_West_B	SoilCO2_West_C	Avg	Spacial Count	Measurement Count
2017-09-21	264	0	0-15cm	3	5.2	3.9	2.1	1.6	0.9	4.2	0.4	3.9	6.8	1.2
2017-09-21	264	0	15-30cm	13	11.2	11.1	3.5	8.1	13.6	11.8	4.5	6.6	10.6	11.5
2017-09-21	264	0	30-45cm	15.4	8.1	15.8	14	9.2	15.6	15.9	13.4	17.3	15.9	14.3
2017-09-21	264	0	45-60cm	15.3	3.6	16.9	17	11	18.8	27.9	11.6	17.6	13.6	35.4
2017-09-21	264	1	0-15cm	2.4	5.1	3.3	4.7	2.8	1.2	3.3	0.7	3.9	7.1	0.9
2017-09-21	264	1	15-30cm	13	10	10.9	1.1	7.8	13.6	12.1	4.5	6.9	1.1	11.5
2017-09-21	264	1	30-45cm	15.8	7.8	17	13.1	9.8	15.6	16.2	13.4	16.2	15.9	14.3
2017-09-21	264	1	45-60cm	15.3	3.6	16.9	17.9	12.5	18.5	28.5	11	16.8	13.3	24.8
2017-09-21	264	Avg	0-15cm	2.7	5.15	3.6	3.4	2.2	1.05	3.75	0.55	3.9	6.95	1.05	3.12	11	22
2017-09-21	264	Avg	15-30cm	13	10.6	11	2.3	7.95	13.6	11.95	4.5	6.75	5.85	11.5	9	11	22
2017-09-21	264	Avg	30-45cm	15.6	7.95	16.4	13.55	9.5	15.6	16.05	13.4	16.75	15.9	14.3	14.09	11	22
2017-09-21	264	Avg	45-60cm	15.3	3.6	16.9	17.45	11.75	18.65	28.2	11.3	17.2	13.45	30.1	16.72	11	22

mode = both
Moisture Point Probes VR
Array ( [0] => Solar_Panels [1] => Flux_Tower [2] => Gate [3] => Biomass_Cage )

Date	DOY	Rep	Depth	Solar_Panels	Flux_Tower	Gate	Biomass_Cage	Avg	Spacial Count	Measurement Count
2017-09-21	264	0	0-15cm	0.1	1.9	0.6	0.3
2017-09-21	264	0	15-30cm	10.6	6.3	5.1	4.5
2017-09-21	264	0	30-45cm	15.6	5.3	9	14.8
2017-09-21	264	0	45-60cm	26.2	15	11	18.2
2017-09-21	264	1	0-15cm	0.9	0.4	0.9	0.4
2017-09-21	264	1	15-30cm	10.6	5.7	5.7	3.5
2017-09-21	264	1	30-45cm	15.4	4.5	9.5	14.3
2017-09-21	264	1	45-60cm	29.1	15	11	18.2
2017-09-21	264	Avg	0-15cm	0.5	1.15	0.75	0.35	0.69	4	8
2017-09-21	264	Avg	15-30cm	10.6	6	5.4	4	6.5	4	8
2017-09-21	264	Avg	30-45cm	15.5	4.9	9.25	14.55	11.05	4	8
2017-09-21	264	Avg	45-60cm	27.65	15	11	18.2	17.96	4	8