Field Notes

<--2019-12-02 14:55:00 | 2019-12-19 09:30:00-->
Other sites visited today: West Pond | Bouldin Corn | East End
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Bouldin Alfalfa: 2019-12-17 10:50:00 (DOY 351)
Author: Joe Verfaillie
Others:

Summary: Standard data collection, forgot to get the phenocam images.

Bouldin Alfalfa
2019-12-17

I arrived at 10:50. It was cool with low patchy clouds burning off to high thin over cast. The alfalfa looks pretty healthy. The road to the field was in good condition with only a little mud at the turn over the ditch.

The 7500 read: 442ppm CO2, 415mmol/m3 H2O, 11.6C, 102.6kPa, 99.4SS â€“ 101.0 after cleaning.
The 7700 read: 2.49ppm CH4, 17RSSI â€“ 2.37ppm CH4, 79.5RSSI after cleaning
The wash reservoir was about empty â€“ refilled. The CH4 was varying smoothly from 2.37 to 2.4 almost like plumes were passing. I didnâ€™t have a spare USB stick so I moved the eddy data off of the USB stick and replaced it.

There were very cold ants in the data logger box. I blew them off the equipment with canned air and left them some moth balls.

I did not have a camera card to swap and seems I forgot to collect the images with the card reader. Look for accumulated images next time.

I downloaded the FD chamber. We should try adding a soil collar to the chamber.

I did spectral measurements, single wand LAI and veg height.

I left at 11:44

Next Mowing: 2020-01-18

Veg Height (cm): Tape measure from ground to top of plant
28, 26, 35, 33, 27, 25, 28, 38, 40, 31, 26, 30, 43, 30, 38, 32, avg = 31.9, stdev = 5.5

0 photos found

7 sets found

5 BA_flux graphs found