Field Notes

East Pond: 2018-06-28 11:35:00 (DOY 179)
Author: Daphne Szutu
Others: Sam, Katrina

Summary: Raised flux sensors ~30cm

2018-06-28
East Pond

We arrived at 11:35. It was warm, clear, sunny, and breezy. There was more water this week, with standing water on top of the muck. The water level was 68cm.

The site is still losing power at night since 5/25.

Sam raised the flux sensors (LI-7500 sn 0418, LI-7700 sn TG1-0211, sonic sn 153803) about 30cm. Weâ€™ll probably need to lower it in the future to clean it, so we should install an anchoring bolt so we can return it to the same height and orientation each time.

Distance from middle of sonic to water surface: 5.40m
Distance from middle of sonic to top surface of bottom boardwalk: 4.03m

I collected the USB GHG data immediately after the sensors were raised. I did not collect other data because I had collected it the previous day.

LI-7500 readings (original height --> raised height):
CO2 395ppm --> 397
H2O 540ppm --> 575
T 24.6C --> 24.7
P 101.6kPa --> 101.6
SS 96 --> 96

LI7700 readings (original height --> raised height):
CH4 1.96ppm --> 2.0
RSSI 52ppm --> 50ppm after cleaning

We left at 11:50.

1 photos found

20180627EP_Footprint.jpg ( 2018-06-27 10:42:47 ) Full size: 1920x1440
View of the footprint area