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Field Notes

<--2014-11-11 11:05:00 | 2014-12-10 11:15:00-->
Other sites visited today: Sherman Island | Mayberry | Twitchell Rice | East End | West Pond

Twitchell Alfalfa: 2014-11-25 15:30:00 (DOY 329)
Author: Patty Oikawa
Others: Paul Oikawa

Summary: Muddy road. Standard data collection.

Paul and I arrived at 3:30pm. The road was too muddy so we had to trek in. The soils looked generally wetter than normal--probably due to recent rains. There were hundreds of geese flying above and cranes-Paul got some good photos. I downloaded data, took soil respiration, spectral and veg height. I forgot clippers in the car and it was getting dark so I failed to do clip plots. I’m not sure how good the spectral will be b/c it was beginning to get dark…Veg was not high enough for LAI. I forgot to write down 7500 readings but everything looked good.

Soil respiration was on average 5 umol m-2 s-1. I stopped the run early by accident on collar 4. I also measured collar 2 first by accident, then collar 1, 3, 4, 5, 6.

Veg Height (cm): Tape measure from ground to top of plant
30, 12, 25, 13, 26, 45, 20, 24, 20, 29, 26, 12, 30, 25, 35, 32, 5, 15, 25, 30, avg = 24, stdev = 9.33

0 photos found

Graphs display:
7 sets found

Can't check TA_met
11 TA_met graphs found

Alfalfa Temperatures

Alfalfa Soil Heat Flux

Alfalfa Soil Moisture

Alfalfa Soil Temperatures Set A

Alfalfa Soil Temperatures Set B

Alfalfa Soil Temperatures Set C

NDVI Narrow Band Radiation

Soil CO2 Flux

Relative Humidity and BattV

SRS NDVI and PRI

PRI Narrow Band Channels

Can't check TA_rad
3 TA_rad graphs found

Alfalfa Radiation

Alfalfa LED NDVI Sensor

Alfalfa PAR

Can't check TA_flux
5 TA_flux graphs found

Alfalfa Sonic Wind

Alfalfa CO2 and H2O

Alfalfa Methane

Alfalfa Pressure

Alfalfa Flux Data Counts

Can't check TA_soilco2
7 TA_soilco2 graphs found

Set A Soil CO2

Set B Soil CO2

Soil CO2 Soil Moisture

Forced Diffusion CO2

Alfalfa Forerunner Soil CO2

Alfalfa Forerunner Temperatures

Alfalfa Forerunner Probe RH

No data found for TA_arable.
1 TA_cam graphs found

GCC

Can't check TATWBABCSB_cam

 
 

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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.