Field Notes

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Other sites visited today: Gilbert Tract | Mayberry | West Pond | Hill Slough
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East End: 2024-02-12 14:35:00 (DOY 43)
Author: Daphne Szutu
Others: Kyle

Summary: Lots of blowdown from recent storms, gas pad lake is larger, smoky air

2024-02-12
East End

Kyle and I arrived at 14:35 PST. It was calm, cool, and mostly cloudy. The air smelled smoky, although we couldn’t see a defined smoke plume from where we were. The gas pad lake is larger than before. We were driving a Jeep truck and enough water splashed up to completely obscure the front window.

There have been several storms since our last visit, so last year’s litter has been blown down by 1-2 meters. We could easily see the tower from down the road. We moved the upper boardwalk back up (it had been moved lower down for storm prep) and left it there since there don’t seem to be any crazy winds in the current forecast. The staff gauge read 69cm.

I downloaded met, cam, and USB GHG data. The wash reservoir was ½ full; Kyle refilled it and cleaned the flux and rad sensors. I changed the eddy clock +45sec from 14:47:30 to 14:48:15 to match the laptop time and restarted logging.

The 7500 read: 439ppm CO2, 414mmol/m3 H2O, 18.6C, 101.8kPa, 95SS – 96SS after cleaning
The 7700 read: 2.18ppm CH4, 41RSSI -- 77 after cleaning

We measured the surface water with the handheld YSI probe.
Sample, temperature-compensated conductivity, temperature
Surface, 668 uS, 6.9 degC

We left at 14:50 PST.

1 photos found

20240212EE_Blowdown.jpg ( 2024-02-12 14:51:27 ) Full size: 1920x1440
A lot of blowdown from the Feburary 3-4 storm. No interference for the precip bucket now!