Field Notes

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Mayberry: 2025-05-29 12:40:00 (DOY 149)
Author: Joe Verfaillie
Others: Dennis, Eden, Kyle

Summary: Retrieved under water PAR, one sipper sample, standard data collection including miniDot. water samples for Eden.

Mayberry
2025-05-29

Dennis, Eden Kyle and I arrived at about 13:40 PDT. It was clear sunny and mild. There is some tall flowering pepper weed on the levee roads. The phragmites are tall and lush, the tules and cattails are catching up. The water is super green - good for Eden's algae samples.

I started to do the data collection - having trouble with the Ethernet port on the regular laptop. Ended up using the Tonzi laptop to talk to the Licor instruments. Dennis cleaned the eddy sensors and the radiometers. He lowered the eddy sensors for cleaning and there was some grumbling trying to get them back in place.
The 7500 read: 426.4ppm CO2, 670.2mmol/m3 H2O, 27.6C, 100.8kPa, 95.8SS - 98.8 after cleaning
The 7700 read: 2.11ppm CH4, 39.6RSSI - 73.6 after cleaning

Kyle retrieved Kuno's underwater PAR sensor and I disconnected it from the data logger but didn't change the program. Then she tried to get some pore water samples from the sippers near the tower. The one she got had a very high temperature.

The water level was 48cm

Eden got water samples near the tower and then to the west of the tower. It's really hard to get to the water through the reeds and there are floating chunks that make the bottom surprising.

We left at about 14:50 PDT

0 photos found

11 sets found

7 MB_flux graphs found