Field Notes

<--2017-06-10 12:30:00 | 2017-07-12 13:00:00-->
Other sites visited today: East End | Mayberry | West Pond | Sherman Wetland | Bouldin Alfalfa | Bouldin Corn
Phenocam link: Searching...

Twitchell Alfalfa: 2017-06-23 15:29:00 (DOY 174)
Author: Ada Chang
Others: Daphne Szutu, Elke Eichelmann, Joe Verfaillie, Dennis Baldocchi, Sam Chamberlain, Kyle Hemes

Summary: FD chamber retrieved.

Arrived at 15:29. The weather was windy and sunny, and the sky was clear. Field was recently mowed; vegetation height and biomass samples not taken.
Clipped Alfalfa around radiation and soil sensors.

Joe brought FD chamber back to lab.

Ada attempted spectral, received “TOO SATURATED” error.

Elke completed soil respiration measurements. Collar 3 was screwed up for soil CO2. Removed chamber before measurements were done during cycle 2 I believe. Replaced chamber for cycle 3 again. Did not retake the measurement but moved on to chamber 4.

Cleaned bugs out of soil CO2 box. Bring compressed air next time.

Cleaned 7500 and radiation.

LI7500 readings:
CO2 399.3
H2O 0865
SS 99.4 -> 101.4 after cleaning
T 33.9
P 101.0

Left at 16:05.

1 photos found

Mowing
twitchellalfalfa_2017_06_22_065105.jpg ( 2017-06-22 05:58:38 ) Full size: 1296x960
Mowing

Graphs display:
7 sets found

Can't check TA_met
11 TA_met graphs found

Explore the graph:Alfalfa Temperatures in a new window

Explore the graph:Alfalfa Soil Heat Flux in a new window

Explore the graph:Alfalfa Soil Moisture in a new window

Explore the graph:Alfalfa Soil Temperatures Set A in a new window

Explore the graph:Alfalfa Soil Temperatures Set B in a new window

Explore the graph:Alfalfa Soil Temperatures Set C in a new window

Explore the graph:NDVI Narrow Band Radiation in a new window

Explore the graph:Soil CO2 Flux in a new window

Explore the graph:Relative Humidity and BattV in a new window

Explore the graph:SRS NDVI and PRI in a new window

Explore the graph:PRI Narrow Band Channels in a new window

Can't check TA_rad
3 TA_rad graphs found

Explore the graph:Alfalfa Radiation in a new window

Explore the graph:Alfalfa LED NDVI Sensor in a new window

Explore the graph:Alfalfa PAR in a new window

Can't check TA_flux
5 TA_flux graphs found

Explore the graph:Alfalfa Sonic Wind in a new window

Explore the graph:Alfalfa CO2 and H2O in a new window

Explore the graph:Alfalfa Methane in a new window

Explore the graph:Alfalfa Pressure in a new window

Explore the graph:Alfalfa Flux Data Counts in a new window

Can't check TA_soilco2
7 TA_soilco2 graphs found

Explore the graph:Set A Soil CO2 in a new window

Explore the graph:Set B Soil CO2 in a new window

Explore the graph:Soil CO2 Soil Moisture in a new window

Explore the graph:Forced Diffusion CO2 in a new window

Explore the graph:Alfalfa Forerunner Soil CO2 in a new window

Explore the graph:Alfalfa Forerunner Temperatures in a new window

Explore the graph:Alfalfa Forerunner Probe RH in a new window

No data found for TA_arable.
1 TA_cam graphs found

Explore the graph:GCC in a new window

Can't check TATWBABCSB_cam