Field Notes

East End: 2018-07-12 12:41:00 (DOY 193)
Author: Katrina Cone
Others: Daphne, Alex, Kuno

Summary: Normal data collection/cleaning, swapped 7500 for calibration, LAI, brought miniDOT back to lab

2018-07-12
East End

We arrived at 12:41. The weather was warm, sunny, and there were wispy clouds and a cool breeze.

Kuno cleaned flux and rad sensors.

The wash reservoir was 2/3 full and Alex topped it off.

I took handheld LAI measurements. This time we tested the 180 degree view to see how a narrower view would affect measurements on vertical leaves. After taking five below measurements, the below wand displayed "log error" again (like at BA), so I closed the file (named EE0712), power cycled, and started a new file. After power cycling, the wand switched back to above, so this file (EE0712B) was closed and another file (EE0712C) was created with the correct below measurements.

7500s were swapped. The Li-7500 with sn 0073 was taken down and the Li-7500 with sn 75H-2176 was put up.

Daphne collected USB, cam, and met data, as well as uploaded new configuration files, updated pressure coefficients, and reset the box. Licor time was reset from 12:15 to 12:02 on both the 7500 and 7700, and the box was reset. Daphne double-checked that the 7500 and 7700 times were correct and that clock sync settings on both were set to auto.

We took the miniDOT with serial number sn 1219 in because there was only 3 days of data. The batteries were dead.

The eosGP was in the muck beneath the tower and at the max of 5000 mV. We were unsure of whether or not it is broken or just maxed out so the range of the probe will need to be checked.

We left at 13:15.
----------------------------------------------------------
Li-7500:

Sn 73
CO2: 396ppm --> 394ppm (after cleaning)
H2O: 786ppm --> 890ppm
T: 28.1C --> 28.1
P: 101.2kPa --> 101.2kPa
SS: 96.8 --> 96.7

Sn 2176
CO2: 401ppm
H2O:800ppm
T:28.4 C
P: 101.2 kPa
SS: 99
----------------------------------------------------------
Li-7700:

CH4: 1.9ppm
RSSI: 30-->75 (after cleaning)

0 photos found

11 sets found

14 EE_met graphs found