Field Notes

<--2019-01-04 10:30:00 | 2019-01-14 10:20:00-->

Tonzi: 2019-01-13 10:00:00 (DOY 13)
Author: Ana Andreu Mendez
Others: Wes (UC Davis)

Summary: Installed new cal panel for the FLIR, Discovered Tower power down due to blown fuse.

Wes and I went yesterday to the field to install the new FLIR cal panel. We used Joe's idea of the concrete panel. We screwed it (6 screws) to a sawhorse that we fixed to the ground with 4 big spikes. We also made 5 holes for the TCs, and attached them from behind. We put concrete putty over them, in the wholes (although they are super thin) and behind. Also over the screws. It's "movable" as Joe suggested, we just have to take the spikes from the ground.

Of the 5 thermocouples, 3 are on the central FOV of the irt, other 2 more near by the edges. We have to check the consistence of the thermocouples measurements, because we realized that the differences on temperature of the panel may be high...but we will see when checking the first round of data and the FLIR photos. There's still more space in the datalogger to add more thermocouples. We did not connected the data logger (CR10X sn 20138) to the solar panel, but to the tiny battery.

The IRT, from the McElrone Lab (Apogee IRT SI-121, sn 1624) was "re-" calibrated before with a Black Body.
http://www.palmerwahl.com/product_home.php?cat=9&catl=23&line=319&itm=5014#
r2 was equal to 0.9989 (f(x)=1.*irt + 0.85). It worked pretty well, although there was some strange behavior around 10 and 0 degrees. At higher temperatures was pretty stable. Could not measure from 17 to 23, but I will try it next time on the field.

We tried not to shadow too much the panel with the pole, although during the afternoon it will, a little.

Field Data

No tank data

No TZ Well data found

No TZ Moisture Point data found

No VR Moisture Point data found

No TZ grass heigth found

No VR grass heigth found

Tree DBH