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Field Notes

<--2015-01-15 11:00:00 | 2015-02-05 12:00:00-->
Other sites visited today: West Pond | Sherman Island | Twitchell Alfalfa | Mayberry | Twitchell Rice

East End: 2015-01-20 09:30:00 (DOY 20)
Author: Sara Knox
Others: Joe, Patty

Summary: Reinstalled flux and instruments. Added new camera. Water level low.

East End Wetland
2015-01-20

We arrived around 9:30 PST. It was chilly and foggy. The water level was low. We met Bryan Brock later who said the water was low for duck hunting. Bryan also said that duck hunting is only allowed on Wednesdays and Saturdays - report to him if you see hunting on other days.

We reinstalled the flux and met sensors. Joe installed his new Raspberry Pi camera. The sonic initially had the wrong settings and a reversed wire on the RS422 to RS232 converter was blocking transmission to the sonic. The wire and settings were fixed. All seemed to work fine by the time we left. Here are the new measurement heights:

Flux sensors
To the base of the mount: 470 cm
To the middle of the LI-7500/sonic path: 535 cm
To the middle of the LI-7700 path: 529 cm

Well and water sensors
Pressure transducer: 144 cm below the top of the well
Height of well above soil surface: 56 cm
Water depth: 8 cm

Things we didn’t get to (already added to the to do list):
Get GPS location of tower
Bring bird spikes for 7500
Measure sonic N
New HMP60 fan
Still need to figure out where to mount the rain gauge
Need to better connect grounding cable to box

A new 2x4 needs to be added to the scaffolding to move the data logger box to the long (west) side of the scaffolding. The sonic cable is a little short and might be replaced. A section of railing should be added to the boardwalk.

Readings before we left:
CO2 = 18.3 mmol m-3
H2O = 525 mmol m-3
Sos = 339 m s-1
p = 102.2 kPa
t = 16 C
diag: 247
CH4: 2.56 ppm
RSSI: 60%

1 photos found

view of field site
20150120EE_Reinstrumented.jpg ( 2015-01-20 14:10:33 ) Full size: 1024x768
view of field site

Graphs display:
11 sets found

14 EE_met graphs found

Temperature and Batt V

Soil Moisture and Well Pressure

Solar Radiation

PAR

Soil Heat Flux

Water Level and Rain

Soil/Water Temperature Set 1

Soil/Water Temperature Set 2

Soil/Water Temperature Set 3

Dissolved Oxygen and Wind Speed

SRS NDVI Channels

Apogee NDVI

NDVI

Undercanopy PAR

Can't check EE_mixed
1 EE_mixed graphs found

Air Pressure and RH

8 EE_flux graphs found

Wind Speeds

LI7500 CO2 and H2O

LI7700 CH4 and RSSI

Flux Counts

Instument Temperatures

Temp Tower 3 (Mixed Veg)

Temp Tower 3 (Mixed Veg)

Temp Tower 3 (Mixed Veg)

Can't check MBWPEESWGT_mixed
No data found for EE_cam.
Can't check MBEEWPSWEPGT_cam
Can't check SIMBTWEE_met
Can't check EE_Temp
5 EE_Temp graphs found

Sonic SOS

LI7500 CO2

Water Level

LI-7700 CH4

Wind Speed

Can't check EE_minidot
1 EE_minidot graphs found

EE miniDOT Dissolved Oxygen

Can't check MBSWEEWPBCBA
1 EE_processed graphs found

CO2 Fluxes

 
 

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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.