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Field Notes

<--2013-07-31 13:05:00 | 2013-08-14 09:40:00-->
Other sites visited today: Twitchell Rice | West Pond | Twitchell Alfalfa | Mayberry | Sherman Island

DWR Corn: 2013-08-05 10:35:00 (DOY 217)
Author: Cove Sturtevant
Others: Laurie

Summary: Data download. Leveled sonic. Cut down veg surrounding tower.

Wetland Construction
2013-08-05

We arrived around 10:35 PDT. It was sunny, breezy, and cool (19 C). Laurie and I checked the readings, cleaned the flux and radiation instruments, washed the solar panels, and downloaded data (camera, flux, and Met). I downloaded data because there was a card mixup last data collection and I wanted to make sure the card in there was good. Then we leveled the sonic (which was leaning toward the west) by raising the northwest scaffold leg. We also cut down some of the vegetation that has been growing rampantly around the tower and potentially creating an upward draft.

7500 readings:
CO2 = 15.8 mmol m-3 (16.3 after cleaning)
H2O = 670 mmol m-3 (640 after cleaning)
Diag: 249 (same after cleaning)
t = 22.6 C
p = 101.4 kPa
sos = 343.0 m s-1

MET looked good.

1 photos found

Nice sunset
DC_autocam_20130806_1845.jpg ( 2013-08-06 18:45:02 ) Full size: 1920x1440
Nice sunset

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

 
 

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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.