Field Notes

<--2015-01-07 13:00:00 | 2015-02-05 15:15:00-->
Other sites visited today: East End | West Pond | Sherman Island | Mayberry | Twitchell Rice
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Twitchell Alfalfa: 2015-01-20 14:00:00 (DOY 20)
Author: Patty Oikawa
Others: Joe, Sara

Summary: Moved FD system, normal data collection, soil respiration and spectral measurements

Arrived at 2pm. The sky was finally clear so Sara took spectral and did veg height. She also moved the forced diffusion system about 20cm west — we were worried about covering the same spot of soil for too long of a period. Joe discovered the profile B 8cm probe was disconnected at the box inside the enclosure — he reconnected it and the data started looking OK again. I think this got disconnected during the sheep invasion on 2014/12/10.
I took 6400 measurements — all values were around 2.6-3.2umol m-2 s-1. I need to bring labels next time for the soil collars — the sharpie labels keep fading. I noticed the profile B 2cm thermocouple was out of the soil — I reinstalled it.
Joe downloaded data and noticed that the rodents are continuing to chew wires - TC 7 was reading Inf and other wires look roughed up. Joe replaced the HMP45 fan.

The 7500 read: 584ppm CO2, 1367mmol/m3 H2O, 23.1SS, 16.86C, 101.8kPa
After cleaning water drops of the: 421.2ppm CO2, 481mmol/m3 H2O, 90.2SS.

1 photos found

A bird inside the sonic path
20150120TA_BirdInSonic.jpg ( 2015-01-20 15:04:00 ) Full size: 1024x768
A bird inside the sonic path

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