Skip to main content
rice field banner biometlab logo
   
   
 
   
   
   
   
   
 
 

Field Notes

<--2013-08-14 09:40:00 | 2013-08-28 09:40:00-->
Other sites visited today: Twitchell Rice | West Pond | Twitchell Alfalfa | Sherman Island | Mayberry

DWR Corn: 2013-08-21 10:00:00 (DOY 233)
Author: Cove Sturtevant
Others: Joe, Laurie

Summary: Swapped out 7500 for calibrated one. Cleaned rain funnel of bird poop.

Wetland Construction
2013-08-21

We arrived around 10:00 PDT. It was sunny, cool (18 C), and super windy. The footprint continues to be overgrown. We swapped out the 7500 (sn 0976 box and head) with a calibrated one (sn 0042).

7500 readings (before swap):
CO2 = 15.66 mmol m-3 (16.5 after cleaning)
H2O = 750 mmol m-3 (620 after cleaning)
Diag: 249 (same after cleaning)
t = 21.95 C
p = 101.0 kPa
sos = 343.5 m s-1

7500 readings (after swap):
CO2 = 16.3 mmol m-3
H2O = 640 mmol m-3
Diag: 248
t = 20.7 C
p = 101.3 kPa
sos = 343.5 m s-1

MET looked good. Joe noticed that there was bird poop blocking the rain funnel. He cleaned it out and in the process tipped the bucket a few times (delete this data). Laurie noted that the radiation sensors are over tall vegetation, which is partially indicative of the footprint.

Cleaned solar panels.

5 photos found

view of field site
20130821DC_Weeds.jpg ( 2013-08-21 10:07:27 ) Full size: 1920x1440
view of field site

new camera postion - tilted down
DC_autocam_20130821_0915.jpg ( 2013-08-21 09:15:02 ) Full size: 1920x1440
new camera postion - tilted down

Weeds mown
DC_autocam_20130821_1345.jpg ( 2013-08-21 13:45:02 ) Full size: 1920x1440
Weeds mown

Tractor work
DC_autocam_20130821_1245.jpg ( 2013-08-21 12:45:02 ) Full size: 1920x1440
Tractor work

Bird in sonic path
DC_autocam_20130820_0745.jpg ( 2013-08-20 07:45:02 ) Full size: 1920x1440
Bird in sonic path

Graphs display:
3 sets found

Can't check DC_mixed
3 DC_mixed graphs found

Temperatures

Battery Voltage and RH

Air Pressure

2 DC_met graphs found

Solar Radiation

Rain and Water Level

3 DC_flux graphs found

Wind Speed

Message Counts

LI7500 CO2

 
 

Login
Select Notes:

This material is based upon work supported by the National Science Foundation and US Department of Energy. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporters.