Field Notes

East Pond: 2019-08-07 12:40:00 (DOY 219)
Author: Daphne Szutu
Others: Robert, Ariane

Summary: Regular data collection/cleaning, swapped 7500 for calibration, removed HOBO conductivity sensor for testing

2019-08-07
East Pond

Robert, Ariane, and I arrived at 12:40. It was sunny with clear skies and a light wind. The wetland looked green and vigorous. The water level was 59 cm. The wash reservoir was mostly full; we topped it off.

I downloaded met, USB, and camera data. I tried downloading the HOBO conductivity sensor again, but it wasnâ€™t connecting to the laptop so I removed the sensor sn 11020258 and brought it back to the lab for further testing. We cleaned the flux and rad sensors and swapped the 7500 for calibration: sn 0065 came down and sn 0035 went up. I uploaded a new configuration file, updated the pressure coefficients, and reset the box.

There was a 7700 clock sync error: I synced the 7500 clock to match the laptop time (when it was 12:16, I set it to 12:20), and reset the box again, which seemed to resolve the issue. The 7500 clock is on auto and the 7700 clock is on slave. I also changed the GHG option to save hourly files instead of half-hourly files. I checked that the USB was logging and the 7700 was connected.

LI-7500 readings (sn 0065 --> sn 0065 clean--> sn 0035) :
CO2 391ppm --> 409 --> 398
H2O 744ppm --> 777 --> 783
T 28.7C --> 28.5 --> 28.5
P 101.5kPa --> 101.5 --> 101.4
SS 112--> 112 --> 99
LI7700 readings:
CH4 2.1ppm
RSSI 38--> 74 after cleaning

We left at 13:25.

0 photos found

5 sets found

Can't check MBEEWPSWEPGT_cam
9 EP_met graphs found