Field Notes

West Pond: 2018-04-19 15:40:00 (DOY 109)
Author: Daphne Szutu
Others: Sam, Elke, Alex, Kyle, Sophie

Summary: Regular data collection/cleaning, swap 7500, Veg surveys with Sophie

2018-04-19
West Pond

We arrived at 10:55. It was breezy, sunny, and clear. The water level is a bit higher than last time and the water sensors are submerged again. Elke, Kyle, Alex, and Sophie were doing veg surveys here when we arrived.

I collected met, camera, and USB GHG data. Sam cleaned the rad and flux sensors. I refilled the wash reservoir; it was Â½ empty. We swapped LI-7500A: sn 75H-2180 came down, sn 75H-2514 went up.

LI-7500 readings (sn 2180 --> sn 2514)
CO2 408ppm --> 410
H2O 410ppm --> 395
T 17.4C --> 18.8
P 101.9 kPa --> 101.8
SS 97 -->

LI-7700 readings:
CH4 1.9ppm
RSSI 33 --> 67 after cleaning
We left around 11:15.

Kyle, Elke, Alex, and Sophie were finishing up veg surveys in West Pond while we were here.
Veg surveys:
We conducted allometric vegetation surveys following Sophie's protocol at West Pond and East End.
At WP: For the first transect, we walked along the boardwalk starting in the South-Eastern corner (South of the EC tower) and took measurements every 10m for 100m.
For the second transect, we started on the boardwalk right next to the EC tower (North-Eastern corner) and took measurements every 10m again, but only for 60m. At that point the vegetation got too dense and we were not able to go any further.

1 photos found

WP_autocam_20180419_1045.jpg ( 2018-04-19 10:45:02 ) Full size: 1920x1440
Elke doing leaf-level measurements