Field Notes

Mayberry: 2018-01-31 13:30:00 (DOY 31)
Author: Daphne Szutu
Others: Elke, Kyle, Rory French

Summary: Regular data collection/cleaning, tested precip bucket, re-wired SWout sensor

2018-02-01
Mayberry

We arrived at 13:30. It was sunny and warm, with a light breeze and thin high clouds. The wetlands are brown. The Mayberry lock is small and it's difficult to reach up into the housing protecting the locks.

I forgot vials, so we did not collect water samples for Isabel.

I collected met, camera, and USB GHG data. There didn't seem to be much or any power problems in the past week. Kyle cleaned radiation and flux sensors. We refilled the water reservoir; it was almost full.

LI-7500 readings:
CO2 394ppm
H2O 473 mmol/m3
T 18.1 C
P 101.6 kPa
SS 94 --> 101 after cleaning

LI7700 readings:
CH4 1.96 ppm
RSSI 66 --> 76 after cleaning

SWout had some spikes. I moved the sensor to port 7 and updated the CR1000 program. I also swapped the water level sensor desiccant.

The rain gauge at MB has been reporting less rain than at SW. Elke tipped the bucket once; it recorded 0.254 mm. The precip bucket has a 6" funnel, and one tip indicates 0.01 in. We used Kyle's water bottle to pour in ~250ml of water into the funnel. We heard 47 tips, and the datalogger recorded 11-12 mm. With a 15.4 cm (6") diameter funnel, this is about 205-225 ml of water. I think this is a reasonable amount recorded for ~250ml of water dumped in because we poured in the water so quickly.

I brought 60ft of power cable to swap out, but it was just short by a few feet, so I'll have to bring a longer cable next time.

We left at 14:10.

0 photos found

11 sets found

7 MB_flux graphs found