Field Notes

<--2021-04-18 11:00:00 | 2021-05-19 11:40:00-->
Other sites visited today: Sherman Wetland | Bouldin Alfalfa | Vaira
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Tonzi: 2021-05-04 11:45:00 (DOY 124)
Author: Joe Verfaillie
Others: Sophie Ruehr

Summary: Show Sophie the site, standard data collection, reinstalled Floor well sensor and grass IRT, bolted down Road well data logger box. Very hot and dry.

Tonzi
2021-05-04

I arrived at about 11:45 PDT. Sophie Ruehr had arrived a while before and was let through the gate by one of the residents. Today was hot and dry. The grass here is still mostly on the green side but going yellow fast. The trees look happy so far. Thereâ€™s still a bunch of â€œteenageâ€ cows hanging around causing trouble.

I showed Sophie the site and how to do soil moisture, well level and swap the z-cam cards. She did a good job with those tasks.

I collected all the data and read the dendrometers.

I went to replace the Floor well water level sensor sn 1260403156 but the cows had again chewed the wire from the Floor tower to the junction box at the well. This time there was not enough slack left at the tower to replace the chewed portion but there was enough on the sensor that is usually spooled up inside the well to go the other direction. I moved the junction box away from the well by one length of conduit and made the connection there. I staked this piece of conduit down in three places â€“ if the cows chew on the sensor cable it will be harder to replace than the extension wire they have chewed so far. The communication problems I was having with this sensor is because it uses red for data and white for power.

I also replaced the grass IRT sensor sn 7385 at the Floor solar panels. This time the cal panel IRT was not reading because the green wire had come loose from SE channel 3. But it should all be working now as long as the cows donâ€™t notice.

At the Road well the cows continue to kick the data logger box around even though I buried it in rocks. This time I drilled a bolt into the concrete pad and bolted the plastic box to the pad.

On the way out I took a length of rope away from a cow that was chewing on it â€“ sheesh.

We left for Vaira at about 15:00 PDT

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2021-05-04	TZ_floor	30.3
2021-05-04	TZ_road	38.4
2021-05-04	TZ_tower	34.45
2021-05-04	VR_well	56.4

mode = both
Moisture Point Probes TZ
Array ( [0] => Tower_1 [1] => Soil_Transect_4_1 [2] => Soil_Transect_3_1 [3] => Soil_Transect_2_1 [4] => Soil_Transect_1_1 [5] => SoilCO2_West_A_1 [6] => SoilCO2_West_B_1 [7] => SoilCO2_West_C_1 [8] => Tower_2 [9] => Floor_South_2 [10] => Soil_Transect_4_2 [11] => Soil_Transect_3_2 [12] => Soil_Transect_2_2 [13] => Soil_Transect_1_2 [14] => SoilCO2_West_A_2 [15] => SoilCO2_West_B_2 [16] => SoilCO2_West_C_2 [17] => Tower_3 [18] => Floor_South_3 [19] => Soil_Transect_4_3 [20] => Soil_Transect_3_3 [21] => Soil_Transect_2_3 [22] => Soil_Transect_1_3 [23] => SoilCO2_West_A_3 [24] => SoilCO2_West_B_3 [25] => SoilCO2_West_C_3 [26] => Tower_4 [27] => Floor_South_4 [28] => Soil_Transect_4_4 [29] => Soil_Transect_3_4 [30] => Soil_Transect_2_4 [31] => Soil_Transect_1_4 [32] => SoilCO2_West_A_4 [33] => SoilCO2_West_B_4 [34] => SoilCO2_West_C_4 )

0000

Date	DOY	Rep	Depth	Tower_1	Soil_Transect_4_1	Soil_Transect_3_1	Soil_Transect_2_1	Soil_Transect_1_1	SoilCO2_West_A_1	SoilCO2_West_B_1	SoilCO2_West_C_1	Tower_2	Floor_South_2	Soil_Transect_4_2	Soil_Transect_3_2	Soil_Transect_2_2	Soil_Transect_1_2	SoilCO2_West_A_2	SoilCO2_West_B_2	SoilCO2_West_C_2	Tower_3	Floor_South_3	Soil_Transect_4_3	Soil_Transect_3_3	Soil_Transect_2_3	Soil_Transect_1_3	SoilCO2_West_A_3	SoilCO2_West_B_3	SoilCO2_West_C_3	Tower_4	Floor_South_4	Soil_Transect_4_4	Soil_Transect_3_4	Soil_Transect_2_4	Soil_Transect_1_4	SoilCO2_West_A_4	SoilCO2_West_B_4	SoilCO2_West_C_4	Spacial Count
2021-05-04	124	0	nan	7.4	2.5	9.4	5.3	3	9.7	6.2	3.6	14.8	12.7	9.3	14.8	15.5	5.4	8.7	1.7	13.9	17.9	19.5	13.1	19.5	21.5	18.2	17.9	19.3	15.1	28.2	25.9	16.8	28.2	37.4	17.9	22.8	21.6	23.4
2021-05-04	124	1	nan	6.8	1.3	10.3	7.1	3.9	9.4	5.9	2.7	13.9	12.4	9	14.5	15.2	5.1	14.2	0.2	13.6	18.7	20.7	13.4	19.3	20.7	17.9	22.3	18.7	14.3	28.2	26.2	16.8	28.2	36.8	18.5	24.8	21.9	23.1
2021-05-04	124	Avg	0-15cm																																				0
2021-05-04	124	Avg	15-30cm																																				0
2021-05-04	124	Avg	30-45cm																																				0
2021-05-04	124	Avg	45-60cm																																				0

mode = both
Moisture Point Probes VR
Array ( [0] => Flux_Tower_1 [1] => Biomass_Cage_1 [2] => Flux_Tower_2 [3] => Biomass_Cage_2 [4] => Flux_Tower_3 [5] => Biomass_Cage_3 [6] => Flux_Tower_4 [7] => Biomass_Cage_4 )

0000

Date	DOY	Rep	Depth	Flux_Tower_1	Biomass_Cage_1	Flux_Tower_2	Biomass_Cage_2	Flux_Tower_3	Biomass_Cage_3	Flux_Tower_4	Biomass_Cage_4	Spacial Count
2021-05-04	124	0	nan	1.2	0.3	9.3	5.4	4.54	12.9	12.5	15.3
2021-05-04	124	1	nan	1.5	0.3	9.7	4.8	4.8	12.3	13	14.8
2021-05-04	124	Avg	0-15cm									0
2021-05-04	124	Avg	15-30cm									0
2021-05-04	124	Avg	30-45cm									0
2021-05-04	124	Avg	45-60cm									0

No TZ grass heigth found

Grass Height VR 16

Date	Height reps (cm)																Location	Average	Samp	STDEV
2021-05-04	19	23	21	10	14	31	28	31	20	36	26	27	60	38	20	10	GH_ALL	25.88	16	11.9

Tree DBH

Date	Tag#	Reading (mm)
2021-05-04	1	12.6
2021-05-04	102	8.1
2021-05-04	2	11.9
2021-05-04	245	13.7
2021-05-04	3	17.8
2021-05-04	4	11.9
2021-05-04	5	5.3
2021-05-04	6	17.1
2021-05-04	7	19.9
2021-05-04	72	12.4
2021-05-04	79	12.3