Field Notes

Twitchell Rice: 2017-01-31 10:15:00 (DOY 31)
Author: Elke Eichelmann
Others: Sam Chamberlain

Summary: Dense fog, high water level, no pictures on camera card, regular data collection

Arrived at 10:15. It was cold and very foggy, visibility was only about 30m. The water level in the rice field was very high. The ground on the small berm we usually park on was soggy and the water came up to road level along the road.

We filled the wash water reservoir, it was empty.

Collected USB GHG data, collected met data.

We tried to collect camera card pictures but there were no pictures on the SD card. The camera was running but the screen looked different, it looked like it was in picture view mode rather than in camera mode. I think the program might not have been started correctly last time in the field. We put the SD card back and started the program. I am pretty sure the program was running when we left.

The LI7500 and LI7700 had water on their windows from the fog. We were not able to get them completely dry in these conditions (especially not the 7700), but the readings improved after cleaning.

LI7500 readings:
CO2 497.31 â†’ 467.6
H2O 123.4 â†’ 395.7
T 5.83
P 102.53
SS 73.24 â†’ 84.89

LI7700 readings:
CH4: 2.05 â†’ 2.79
RSSI: 2.3 -> 43.4 after cleaning

Left at 10:35.

0 photos found

6 sets found

12 TW_met graphs found