Summary: Regular tower maintainance

Weather: Overcast. All is very wet from heaby rains over the weekend.

 

We arrived at Riet Vell after leaving Qin and the chamber materials at Alfacada.

We filled the water bucked which was almost empty

We cleaned the sensors, which still had spider webs (full of mosquitoes) and nests. There was a small spider nest in the li7500 sensor.

We downloaded met and flux data without issues.

TC_min2_3 still read higher that the other ones. We will need to substitute it. SHF_3 recorded different from other: it was because it was unburied. Angèlica buried it again.

Clocks from flux sensors were alright. However, pc clock was aprox 7 minutes ahead. We adjusted datalogger time to utc (how?).

We checked the battery boxes, and they were dry on the inside.

We straightened the radiometer boom.

The footbridge is at 20 º NE.

We removed the white American tape from the 7700 because the paint was getting off.

 

We left at 10.15h and went to buy lunch and to Alfacada to join the chamber team.

 

Veg height: 19,20,23,20,24,24,34,25,29,23,32

Water height: 5.5

Readings:

	Before cleaning sensors	After cleaning sensors
LI-7500 readings
CO2 ppm	440	412.5
H20 ppm	807	705
T ºC	20.14	22.36
P kPa	101.99	102.01
SS %	96.508	99.461
LI-7700 readings
CH4 ppm	-0.5861	2.77
RSSI %	0.29	78.9