Field Notes

<--2015-05-06 11:15:00 | 2015-06-03 09:30:00-->
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Tonzi: 2015-05-20 11:00:00 (DOY 140)
Author: Joe Verfaillie
Others: Ana

Summary: Another Hander down, fixed power supply on soil co2 10x, tower flux okay, changed tower met program, did not measure wells or dendrometers, clock change on tower computer and IRT system

Tonzi
2015-05-20

I arrived about 11:00 with Ana. It was clear and sunny with a nice breeze from the west. The grass is still mostly green with lots of flowers and busy bees. The ground is dry but it looks there was some short heavy rain.

Ana checked on her IRT and wind profile systems. Another one of the sonics sn 0854 has stopped working. It was the one in the upside down position and might have gotten wet from the rain. The inside was dry, but the connector was wet. Sonic sn 0852 was moved from the second from bottom position to the bottom position. The clock on the IRT CR1000 was four hours ahead. Ana reset it from 8pm to 12:01pm PST.

Ana also downloaded the data from the Floor site and measured grass height. She tried to do the well measurements, but the measuring tape sensor was acting up and give variable numbers between 28 and 34ft.

I did the Moisture Point measurements. The measurements worked well here with most of the probes reporting reasonable numbers, unlike Vaira today. The top pin of the probe near the Tower was crushed. I had to break it off to get the cable to fit properly. I donâ€™t think that pin is used though.

I added a power supply to the soil CO2 10X near Liu Kangâ€™s tree. And plugged the MD9 into the CR23X that had been disconnected some time before. The Floor computer was able to collect the data.

I collected data from the Tower computer. Both winflux and the CR1000 were working this time. The Tower computer clock was 10min ahead. This affected the CO2 profile system, the Tram and winflux, but nothing else. When the computer clock read 12:25, I reset it to 12:15.

The CO2 profile system was only a few ppm off from calibration.

I collected all the Tower top 23x data and loaded a new program. I changed the range on the four-band radiometer from Auto to 50mv and the range on the LED sensors from 5000mv to 1000mv. Hopefully this will fix the spiking we see in the shortwave in numbers.

I cleaned the zcam windows but did not collect the images.

We did not do the dendrometers or water potential.

Veg Height (cm): Tape measure from ground to top of plant
20, 30, 20, 10, 10, 30, 10, 50, 30, 20, avg = 23, stdev = 12.52

Field Data

No tank data

No TZ Well data found

mode = both
Moisture Point Probes TZ
Array ( [0] => Floor_South_1 [1] => Floor_West_1 [2] => SoilCO2_1 [3] => Soil_Transect_4_1 [4] => Soil_Transect_3_1 [5] => Soil_Transect_2_1 [6] => Soil_Transect_1_1 [7] => SoilCO2_West_A_1 [8] => SoilCO2_West_B_1 [9] => SoilCO2_West_C_1 [10] => Tower_2 [11] => Floor_South_2 [12] => Floor_East_2 [13] => SoilCO2_2 [14] => Soil_Transect_4_2 [15] => Soil_Transect_3_2 [16] => Soil_Transect_2_2 [17] => Soil_Transect_1_2 [18] => SoilCO2_West_A_2 [19] => SoilCO2_West_B_2 [20] => SoilCO2_West_C_2 [21] => Tower_3 [22] => Floor_South_3 [23] => SoilCO2_3 [24] => Soil_Transect_4_3 [25] => Soil_Transect_3_3 [26] => Soil_Transect_2_3 [27] => Soil_Transect_1_3 [28] => SoilCO2_West_A_3 [29] => SoilCO2_West_B_3 [30] => SoilCO2_West_C_3 [31] => Tower_4 [32] => Floor_South_4 [33] => Floor_West_4 [34] => SoilCO2_4 [35] => Soil_Transect_4_4 [36] => Soil_Transect_3_4 [37] => Soil_Transect_2_4 [38] => Soil_Transect_1_4 [39] => SoilCO2_West_A_4 [40] => SoilCO2_West_B_4 [41] => SoilCO2_West_C_4 [42] => Floor_West_2 [43] => Floor_West_3 )

0000

Date	DOY	Rep	Depth	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_East_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	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	Floor_West_2	Floor_West_3	Spacial Count
2015-05-20	140	0	nan	9.1	17.3	11.1	10.3	9.1	10	7.7	18.2	13.2	10.6	13.9	17.3	16.7	16.7	15.5	20.6	16.4	6.6	16.4	3.2	17.9	17.3	13.1	14.8	11.5	17	19.5	16.8	17.9	17.3	16.2	11	41.4	21.1	11.1	12.8	21.3	27.4	13	22.2	19.6	24.2
2015-05-20	140	1	nan	8.8	17.6	11.1	10.3	9.7	9.7	8.3	17.6	13.5	10	14.5	17.6	16.7	16.4	15.2	21	16.4	7.2	16.4	3.9	17.9	15.9	14	13.1	11.7	16.5	19.5	16.5	18.4	17.9	15.9	11	11.9	20.8	11.1	12.2	20.8	29.1	13.3	22.8	19.9	24.2	10.3	18.2
2015-05-20	140	Avg	0-15cm																																													0
2015-05-20	140	Avg	15-30cm																																													0
2015-05-20	140	Avg	30-45cm																																													0
2015-05-20	140	Avg	45-60cm																																													0

mode = both
Moisture Point Probes VR
Array ( [0] => Gate_1 [1] => Flux_Tower_2 [2] => Gate_2 [3] => Flux_Tower_3 [4] => Solar_Panels_4 [5] => Flux_Tower_4 [6] => Biomass_Cage_4 [7] => Biomass_Cage_3 )

0000

Date	DOY	Rep	Depth	Gate_1	Flux_Tower_2	Gate_2	Flux_Tower_3	Solar_Panels_4	Flux_Tower_4	Biomass_Cage_4	Biomass_Cage_3	Spacial Count
2015-05-20	140	0	nan	12.9	21.9	14.2	17.3	11.6	27.1	18.8
2015-05-20	140	1	nan	12.7	21	15.2	16.8	11.9	28.2		18.2
2015-05-20	140	Avg	0-15cm									0
2015-05-20	140	Avg	15-30cm									0
2015-05-20	140	Avg	30-45cm									0
2015-05-20	140	Avg	45-60cm									0