Field Notes

<--2012-12-06 13:10:00 | 2013-01-03 11:20:00-->
Other sites visited today: Mayberry | Twitchell Rice | West Pond | DWR Corn

Sherman Island: 2012-12-14 09:30:00 (DOY 349)
Author: Cove Sturtevant
Others: Laurie

Summary: Standard field work, downloaded data, ants in the big box.

Sherman
2012-12-14

We arrived about 09:30 PST. It was cold, about 6 °C, with a very mild breeze and cloudy. The field was slightly mucky with more bare spots due to significant cow trampling, although the short green grass layer largely remains.

Laurie did soil respiration, well depth, and moisture point, and I did spectral later on. I checked the tower, downloaded the data & autocam pics, and cleaned the instruments (including radiation sensors). We brought a replacement radiation shield with new fan for the Vaisala T/RH sensor, but the current fan was still humming so I did not replace. There is a steady stream of ants into the wooden box, and they seem to really like the power conduit on the LGR pump. No serious problems as of yet, but we need to bring ant baits next time we’re out.

LGR readings: 08:27, 22.78 °C, 134.9 Torr (adjusted to 145.7 Torr), 13.84 us, 10 Hz, 2.53 ppm

7500 readings:
CO2: 18.2 mmol m-3
H2O: 360 mmol m-3
diag: 247
p = 101.3 kPa
t = 8.8 °C

MET & Soil CO2 data looked good.

2 photos found

view of field site
SI_autocam_20121214_1015.jpg ( 2012-12-14 10:15:03 ) Full size: 1920x1440
view of field site

view of field site
SI_autocam_20121215_1515.jpg ( 2012-12-15 15:15:02 ) Full size: 1920x1440
view of field site

Graphs display:
7 sets found

No data found for SI_mp.
11 SI_met graphs found

Solar Radiation

Energy

Soil Temperatures Set 1

Soil Temperatures Set 2

Soil Temperatures Set 3

Soil Temperature at -16cm

LED NDVI Sensor Output

Solar Radiation from CNR1

Sherman Island Rain

Sherman Well Level

Box Temperatures

Can't check SI_mixed
2 SI_mixed graphs found

Theta Probes

Sherman Island Air Temperatures

4 SI_flx graphs found

Sonic Wind

CH4 Concentrations

Sample Counts

LI7500 CO2 and H2O

3 SI_soilco2 graphs found

Sherman Island Vaisala Soil CO2

Soil CO2 Temperatures

Soil CO2 Reference Soil Temperatures

Can't check TWSI_mixed
Can't check SIMBTWEE_met