Field Notes

<--2017-03-15 14:15:00 | 2017-03-29 10:00:00-->
Other sites visited today: Mayberry | Sherman Wetland | East End | West Pond

Bouldin Alfalfa: 2017-03-23 10:20:00 (DOY 82)
Author: Daphne Szutu
Others: Joe Verfaillie

Summary: Swapped 7500, swapped 7700

2017-03-23
Bouldin Alfalfa

We arrived at 10:20. It was sunny and mostly clear. The alfalfa was about 40 cm tall and wet with dew.

We swapped the LI7700 for one we had calibrated in the lab: sn TG1-0421 came down, sn TG1-0424 went up

Did not check Optics RH after swap. I changed the heater and wash settings so it matched those of the previous sensor.

LI7700 readings:
CH4: 1.96-->1.95 after swap
RSSI: 53.0 -> 85.0 after swap

We swapped LI7500 for one we had calibrated in the lab: sn 0065 came down, sn 75H-2667 went up

LI7500 readings:
CO2 405.4 umol/mol --> 404.1 after swap
H2O 448.0 mmol/m3 --> 462.4 after swap
T 13.8 Celsius --> 14.3 after swap
P 102.4 kPa --> 102.4 after swap
SS 82.5 -> 106.0 after swap

I loaded the new config file and updated the pressure coefficients. We reset the 7500 box. In the 7500 software, under the 7700 icon, I pressed the "Connect" button to link the new 7700 to the system.

We left around 11:00.

Next Mowing: 2017-04-24

0 photos found

7 sets found

5 BA_flux graphs found