Field Notes

<--2019-04-16 10:30:00 | 2019-05-07 09:00:00-->
Other sites visited today: Tonzi

Vaira: 2019-04-30 10:30:00 (DOY 120)
Author: Joe Verfaillie
Others: Daphne, Siyan, Kuno, Camilo, Jiangong

Summary: Regular fieldwork, Soil samples for moisture, C/N, microbial community, swapped 7500

Vaira
2019-04-30

I arrived at about 10:30 with Daphne, Siyan, Kuno, Camilo and Jiangong. It was cool and mostly cloudy. Everything was green but the grass is beginning to brown in high spots. The grass has about tripled in height since last time. The ground is dry and hard at the surface. We met Dale Vaira and his wife on their way out. They were fixing some erosion of roads near the burn and having a picnic.

Daphne swapped the 7500As for calibration: sn 75H-2176 came down, sn 75H-2668 went up. She uploaded a new config file, updated the pressure coefficients, reset the 7550 box, and downloaded USB GHG data.

LI-7500 readings (sn 75H-2176 --> sn 75H-2668):
CO2 407ppm --> 415
H2O 512ppm --> 497
T 16.4C --> 16.8
P 99.3kPa --> 99.3
SS 103--> 101 after swap

Daphne also downloaded the met data and Phenocam photos, took clip plots and veg heights.

I did the soil moisture measurements. I also installed an Arable Mark unit sn A001353 at the end of the radiation boom. This is for Arable and I need to set up the CR1000 to record 5min data for them but we should be able to get the data from the unit too.

We also took spectra readings but the light was pretty variable due to the clouds.

The others took soil samples. Kuno found a layer of ash at about 15cm below the surface. Four levels (0-10, 10-20, 20-30, 30-40 cm) were taken in six locations surrounding the tower site. Soils will be analyzed for soil moisture, C/N and Microbial community.

We went to the pond for a look see and collected the data there. The pond level was 20.76ft

Veg Height (cm): Tape measure from ground to top of plant - Measured by DS; 9 measurements each in 3 clip plot squares
46, 38, 36, 37, 23, 23, 23, 38, 43, 30, 48, 30, 43, 10, 18, 35, 29, 31, 16, 28, 29, 16, 41, 25, 13, 26, 26, avg = 29.7, stdev = 10.21

Field Data

No tank data

Well Depth

DateLocationDepth (feet)
2019-04-30VR_well48.6
2019-04-30TZ_floor13.3
2019-04-30TZ_road22.55
2019-04-30TZ_tower17.3
2019-04-30VR_pond20.76

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

Date DOY Rep Depth
Tower
Floor_South
Floor_West
Soil_Transect_3
Soil_Transect_2
SoilCO2_West_A
SoilCO2_West_B
SoilCO2_West_C
Soil_Transect_4
Soil_Transect_1
 Avg
Spacial Count
Measurement Count
2019-04-30 120 0 0-15cm 15 8.3 16.8 6.8 13.8 15.6 15 3.6
2019-04-30 120 0 15-30cm 23.4 16.7 21.9 22.5 46 19.1 8.4 21.3
2019-04-30 120 0 30-45cm 26 34.9 29.3 23.5 59.2 29.6 27.1 31 19 25.1
2019-04-30 120 0 45-60cm 39.4 50.6 43.7 39.1 56.9 42.3 44.3 46.6 25.4 22.8
2019-04-30 120 1 0-15cm 15.6 8 13.8 6.8 6.6 14.4 14.7 2.7 4.2 10.1
2019-04-30 120 1 15-30cm 23.7 17 21.6 22.2 44.8 19.1 7.8 21.6 16.7 10
2019-04-30 120 1 30-45cm 26.2 34.6 28.2 23.7 53.6 29.3 27.1 31.5 19 26
2019-04-30 120 1 45-60cm 38.5 52 43.4 38.5 49.1 42.5 44.5 48.3 25.1 23.1
2019-04-30 120 2 0-15cm 4.2 9.7
2019-04-30 120 2 15-30cm 16.7 10.3
2019-04-30 120 2 30-45cm 19 25.4
2019-04-30 120 2 45-60cm 25.9 23.1
2019-04-30 120 Avg 0-15cm 15.3 8.15 15.3 6.8 10.2 15 14.85 3.15 4.2 9.9 10.29 10 20
2019-04-30 120 Avg 15-30cm 23.55 16.85 21.75 22.35 45.4 19.1 8.1 21.45 16.7 10.15 20.54 10 20
2019-04-30 120 Avg 30-45cm 26.1 34.75 28.75 23.6 56.4 29.45 27.1 31.25 19 25.5 30.19 10 22
2019-04-30 120 Avg 45-60cm 38.95 51.3 43.55 38.8 53 42.4 44.4 47.45 25.47 23 40.83 10 22

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

Date DOY Rep Depth
Solar_Panels
Flux_Tower
Biomass_Cage
 Avg
Spacial Count
Measurement Count
2019-04-30 120 0 0-15cm 8.3 5.3 4.7
2019-04-30 120 0 15-30cm 14.2 17.6 10.3
2019-04-30 120 0 30-45cm 21.5 21.8
2019-04-30 120 0 45-60cm 35.7 23.4
2019-04-30 120 1 0-15cm 10.9 5.6 5
2019-04-30 120 1 15-30cm 14.2 17.3 10.6
2019-04-30 120 1 30-45cm 20.7 9.2 21.2
2019-04-30 120 1 45-60cm 36.2 20.8 23.4
2019-04-30 120 2 0-15cm 5
2019-04-30 120 2 15-30cm 17.3
2019-04-30 120 2 30-45cm 9.5
2019-04-30 120 2 45-60cm 20.8
2019-04-30 120 Avg 0-15cm 9.6 5.3 4.85 6.58 3 7
2019-04-30 120 Avg 15-30cm 14.2 17.4 10.45 14.02 3 7
2019-04-30 120 Avg 30-45cm 21.1 9.35 21.5 17.32 3 6
2019-04-30 120 Avg 45-60cm 35.95 20.8 23.4 26.72 3 6

No TZ grass heigth found

No VR grass heigth found

No VR Tree DBH found

No water potential data found

No VR Grass Biomass data found

No VR OakLeaves Biomass data found

No VR PineNeedles Biomass data found

5 photos found

New Arable Mark mounted on end or radiation boom
20190430VR_NewArable.jpg ( 2019-04-30 11:31:52 ) Full size: 1280x960
New Arable Mark mounted on end or radiation boom

Kuno and Camilo sampling soils at Vaira.
20190430VR_KunocamiloSoilsampling.JPG ( 2019-04-30 10:41:44 ) Full size: 1920x1440
Kuno and Camilo sampling soils at Vaira.

Siyan and Jiangong sampling soils at Vaira.
20190430VR_SiyanJiangongSoilsampling.JPG ( 2019-04-30 11:11:22 ) Full size: 1920x1440
Siyan and Jiangong sampling soils at Vaira.

Kuno and Camilo sampling soils at Vaira.
20190430VR_Soilsampling.JPG ( 2019-04-30 11:20:31 ) Full size: 1920x1440
Kuno and Camilo sampling soils at Vaira.

Taking soil samples
vaira_2019_04_30_100121.jpg ( 2019-04-30 10:58:36 ) Full size: 1296x960
Taking soil samples

Graphs display:
9 sets found

16 VR_met graphs found

Explore the graph:Temperatures in a new window

Explore the graph:System Power Voltage in a new window

Explore the graph:Soil Temperatures Set 1 in a new window

Explore the graph:Soil Temperatures Set 2 in a new window

Explore the graph:Soil Temperature Set 3 in a new window

Explore the graph:Soil Temperature at -4cm in a new window

Explore the graph:Soil Heat Flux in a new window

Explore the graph:Soil Moisture in a new window

Explore the graph:Photosynthetic Active Radiation in a new window

Explore the graph:Short/Long Wave Radiation in a new window

Explore the graph:LED sensor in a new window

Explore the graph:Vaira PPT in a new window

Explore the graph:Peltier SHF Plates in a new window

Explore the graph:Peltier SHF Temperatures in a new window

Explore the graph:LED NDVI in a new window

Explore the graph:NDVI SRS Raw Data in a new window

2 VR_flux graphs found

Explore the graph:CO2 Density in a new window

Explore the graph:Sonic Wind in a new window

6 VR_soilco2 graphs found

Explore the graph:VR West Eosense Profile in a new window

Explore the graph:VR North Vaisala Profile in a new window

Explore the graph:Soil CO2 West Temperatures in a new window

Explore the graph:Soil CO2 North Temperatures in a new window

Explore the graph:Soil CO2 East Temperatures in a new window

Explore the graph:VR East Vaisala Profile in a new window

2 VR_pond graphs found

Explore the graph:Pond Level and Rain in a new window

Explore the graph:Vaira Pond Temperatures in a new window

Can't check TZVR_mixed
No data found for VR_fd.
No data found for VR_processed.
No data found for VR_arable.
No data found for VR_soilvue.