Field Notes

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Other sites visited today: Gilbert Tract | East End
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Mayberry: 2025-04-16 11:00:00 (DOY 106)
Author: Joe Verfaillie
Others: Kyle

Summary: Windy, standard data download, Kyle worked on sippers, miniCH4 reading -10 - removed, box door was open, cleaned spider shell out of picam window

Mayberry
2025-04-16

Kyle and I arrived at about 12:00 PDT. It was cool, sunny and windy - Kyle said it was the windiest she had experienced in the Delta. Green tules are poking up and some edges look green but the wetland is still mostly brown. The levee grasses are turning brown in places. The data logger box door was open. There was some rain since the last visit but nothing looked like it had gotten wet.

I collected the flux, met and camera data. Kyle cleaned the eddy sensors and the radiometers - there was mud on SW_in. She refilled the wash reservoir but was having a hard time pouring the water in the wind.
The 7500 read:421.2ppm CO2, 496.0mmol/m3 H2O, 19.2C, 100.5kPa, 109.2SS
The 7700 read: 1.99ppm CH4, 35.9RSSI - 73.3 after cleaning

The miniCH4 sn 38-576-25 was reading -10.00 again - I removed it to bring it back in and tied the cable up under the box. I collected the miniDot data but didn't swap the desiccant.

The water level was 54cm.

Kyle worked on the sippers and got some salinity readings from both the vegetated and open water locations. She pulled out the one set of sippers east of the boardwalk.

Open-red-red, 6.69mS, 19C
Open-red-green, 6.64mS, 19.3C
Open-blue-yellow, 5.62mS, 18.9C
Open-blue-green, 5.15mS, 18.9C

The picam had a spider shell between the lens and the window that I was unable to dislodge. I ended up taking down the camera and disassembling it to clean the window. Afterwards I reinstalled it and leveled the FOV a bit - might need a new ROI in processing.

We left at about 14:25 PDT

0 photos found

11 sets found

7 MB_flux graphs found