Field Notes

Sherman Barn: 2018-07-12 14:05:00 (DOY 193)
Author: Katrina Cone
Others: Daphne, Alex, Kuno

Summary: Regular data collection, spectral, veg height, cleaned 7700.

Sherman Barn
2018-07-12

We arrived at 14:05. The weather was warm, very windy, and cloud coverage was minimal.

Daphne collected USB, cam, and met data. Li-Cor time was changed from 13:26 to 13:20. The 7700 was not connected, so Daphne connected it. The 7500 box was reset. Daphne checked the GHG columns and re-entered sonic analog inputs before resetting the box again. The 7500 box was renamed from AIU-1557 to SB-1557, then the box was reset for the third time.

Alex attempted to take spectral measurements but it was too bright so it was over-saturated.

Kuno took vegetation height. Most of the vegetation was dead, so only measurements of living, green vegetation was taken. In the future we may have to compose a protocol for measuring vegetation height at this site.

The precipitation bucket needs stabilization. Maybe have a longer fence post cable tied to a 4x4?

7700 is very difficult to clean because of tall height. Alex had to stand on the very top of the step ladder present at the site to reach just the bottom part of the sensor.

We left at 14:35.
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Li-7500:

CO2: 405ppm
H2O: 670ppm
T: 29.8C
P: 101.4kPa
SS: 98
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Li-7700:
CH4: 1.91ppm
RSSI: 48ppm --> 70ppm (after cleaning)

Veg Height (cm): Tape measure from ground to top of plant - Measured by Kuno. Most vegetation was dead, but only living, green grass and nettle was measured.
18.5, 26, 29.5, 19, 14.3, 17, 9, 21, 20.3, 25, 11.2, 10.5, 22.8, 8.3, 24, 19.5, 9.3, 19.8, 30, 19.8, avg = 18.7, stdev = 6.61

2 photos found

20180711SB_SiteSetup.jpg ( 2018-07-11 12:19:02 ) Full size: 1920x1440
Kyle, Daphne, Tyler, Kuno and Heather setting up the site.