Field Notes

Tonzi: 2017-01-17 11:30:00 (DOY 17)
Author: Joe Verfaillie
Others: Siyan, Miriam Johnston

Summary: very wet, pond much higher, removed bad batteries from Tower battery bank, cut down dead tree near Tower, swapped Floor 7500, resealed z-cam windows.

Tonzi
2017-01-17

I arrived about 11:30am with Siyan and Miriam Johnston. Miriam is a PhD student visiting from the Moorcroft lab at Harvard University. She will be running a model using Tonzi/Vaira data. The Delta and Central Valley were foggy but here itâ€™s just hazy and cool with a breeze from the north. The Sacramento River is running high with some flooding on the river side of the levees. The Cosumnes is a little bit lower than two weeks ago.

I met Rob Conkling who was out cutting fire wood. He said there had been a lot of rain and high wind in the last week. I asked him about the dead tree near the tower guy wires on the southwest corner and he cut it down right then and there. He felled it to the north away from the guy wires and will leave it where it fell until the ground dries out so he can get in with a truck to cut it up for firewood. Rob also said heâ€™s notice a lot of small trees dying due to the drought and that the dead ones have lots of insect damage.

The Tower has been losing power over night recently. Miriam and I disconnected all the batteries and tested them with the load tester. Four batteries tested bad. We removed them and reconnected the others. The CO2 profile system is still off.

I collected data, Siyan did the standard fieldwork.

We checked and swapped the 7500 on the Floor tower - sn 0073 came off and sn 0418 went on. The CO2 calibration coefficients on 0073 got messed up somehow after its last calibration and CO2 was reading about 519ppm low, but the signal looked okay.

I resealed the windows on z-cam 2 and 3 with silicone. They were temporarily held on with putty and there was a little bit on condensation on the inside of the glass.

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2017-01-17	TZ_floor	23.9
2017-01-17	TZ_road	31.1
2017-01-17	TZ_tower	27

mode = both
Moisture Point Probes TZ
Array ( [0] => Tower_1 [1] => Floor_South_1 [2] => Floor_West_1 [3] => SoilCO2_1 [4] => Soil_Transect_4_1 [5] => Soil_Transect_3_1 [6] => Soil_Transect_2_1 [7] => Soil_Transect_1_1 [8] => SoilCO2_West_A_1 [9] => SoilCO2_West_B_1 [10] => SoilCO2_West_C_1 [11] => Tower_2 [12] => Floor_South_2 [13] => Floor_West_2 [14] => SoilCO2_2 [15] => Soil_Transect_4_2 [16] => Soil_Transect_3_2 [17] => Soil_Transect_2_2 [18] => Soil_Transect_1_2 [19] => SoilCO2_West_A_2 [20] => SoilCO2_West_B_2 [21] => SoilCO2_West_C_2 [22] => Tower_3 [23] => Floor_South_3 [24] => Floor_West_3 [25] => SoilCO2_3 [26] => Soil_Transect_4_3 [27] => Soil_Transect_3_3 [28] => Soil_Transect_2_3 [29] => Soil_Transect_1_3 [30] => SoilCO2_West_A_3 [31] => SoilCO2_West_B_3 [32] => SoilCO2_West_C_3 [33] => Tower_4 [34] => Floor_South_4 [35] => Floor_West_4 [36] => SoilCO2_4 [37] => Soil_Transect_4_4 [38] => Soil_Transect_3_4 [39] => Soil_Transect_2_4 [40] => Soil_Transect_1_4 [41] => SoilCO2_West_A_4 [42] => SoilCO2_West_B_4 [43] => SoilCO2_West_C_4 )

0000

Date	DOY	Rep	Depth	Tower_1	Floor_South_1	Floor_West_1	SoilCO2_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	Floor_West_2	SoilCO2_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	Floor_West_3	SoilCO2_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	Floor_West_4	SoilCO2_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
2017-01-17	17	0	nan	36.7	32.9	37.9	38.4	32.6	22.3	29.1	33.8	33.8	32	35.5	44.8	43.9	39.6	39.9	39.9	34.1	33	28.6	32.9	30.4	34.4	38.8	42.7	41.9	46	38.8	35.4	36.8	37.4	36.6	39.6	37.4	39.5	57.2	45.4	41.7	35.7	45.4	47.1	39.4	45.4	50	49.1
2017-01-17	17	1	nan	37		37.6		32.3	23.8	28.2	34.1	33.8			44.8		39.9		39.1	33.8	33.2	28.3	33.2			39.4		41.3		39.1	34.9	36	36.8	36.8			38.8		44.8		35.7	44.8	48.6	39.1	44.3
2017-01-17	17	Avg	0-15cm																																													0
2017-01-17	17	Avg	15-30cm																																													0
2017-01-17	17	Avg	30-45cm																																													0
2017-01-17	17	Avg	45-60cm																																													0

mode = both
Moisture Point Probes VR
Array ( [0] => Solar_Panels_1 [1] => Flux_Tower_1 [2] => Gate_1 [3] => Biomass_Cage_1 [4] => Flux_Tower_2 [5] => Gate_2 [6] => Biomass_Cage_2 [7] => Solar_Panels_3 [8] => Flux_Tower_3 [9] => Gate_3 [10] => Biomass_Cage_3 [11] => Solar_Panels_4 [12] => Flux_Tower_4 [13] => Gate_4 [14] => Biomass_Cage_4 [15] => Solar_Panels_2 )

0000

Date	DOY	Rep	Depth	Solar_Panels_1	Flux_Tower_1	Gate_1	Biomass_Cage_1	Flux_Tower_2	Gate_2	Biomass_Cage_2	Solar_Panels_3	Flux_Tower_3	Gate_3	Biomass_Cage_3	Solar_Panels_4	Flux_Tower_4	Gate_4	Biomass_Cage_4	Solar_Panels_2	Spacial Count
2017-01-17	17	0	nan	34.1	18.5	37.9	12.7	69.2	21.3	25.8	31.6	26.8	26.2	32.9	43.8	26.2	23.1	33.1
2017-01-17	17	1	nan	33.8	28.2	37.3	13	31.6	21.9	24.6	31.8	27.4	26.9	32.9	42.5	24.8	23.4	33.1	31
2017-01-17	17	Avg	0-15cm																	0
2017-01-17	17	Avg	15-30cm																	0
2017-01-17	17	Avg	30-45cm																	0
2017-01-17	17	Avg	45-60cm																	0

No TZ grass heigth found

No VR grass heigth found

Tree DBH

Date	Tag#	Reading (mm)
2017-01-17	1	25.5
2017-01-17	102	23.0
2017-01-17	2	19.8
2017-01-17	245	23.2
2017-01-17	3	23.9
2017-01-17	4	20.0
2017-01-17	5	21.0
2017-01-17	7	17.5
2017-01-17	72	23.5
2017-01-17	79	23.3
2017-01-17	8	20.8

No water potential data found

No TZ Grass Biomass data found

No TZ OakLeaves Biomass data found

No TZ PineNeedles Biomass data found

3 photos found

20170117TZ_StumpRings.jpg ( 2017-01-17 13:10:28 ) Full size: 1080x1440
Trunk cross-section from a dead tree Rob cut down near the tower guy wire on the southwest corner

20170117TZ_CutTree.jpg ( 2017-01-17 12:39:41 ) Full size: 1920x1440
Rob cut down a dead tree near the tower guy wire on the southwest corner

20170117TZ_TrunkRings.jpg ( 2017-01-17 13:10:56 ) Full size: 1920x1440
Trunk cross-section from a dead tree Rob cut down near the tower guy wire on the southwest corner