Field Notes

East Pond: 2018-05-16 10:15:00 (DOY 136)
Author: Joe Verfaillie
Others: Daphne

Summary: Water level high, inlet running - turned off, drain plugged by beavers, solar system finished, SRS NDVI added, changes to mux locations.

East Pond
2018-05-16

I arrived at 10:15 with Daphne. There were thunderstorms to the north but otherwise mostly sunny and breezy. The inlet was running and the water level was very high (82cm). At the outlet drain the water was well above the boards. The drain seemed to be plugged with mud and debris. I turned the water off with the valve at the inlet. Bryan says beavers have been busy plugging drains both here and at Mayberry. I saw some willows that look like they were cut down by beavers.

I finished work on the solar system. I added two 30A breakers to isolate the panels and the batteries and swapped out the cable to the batteries for a longer one. I think all should be well.

Daphne looked at the data and contemplated swapping out the multiplexor due to spikes in Air Pres, SWout and SHF 1. She ended up move the Air Press to the CR1000, and moved SWin and SWout farther towards the end of the mux channels. She tried to move SHF 1 but it was reading zero so she moved it back to its original location. The new program is EastPond_met_20180515.cr1.

The 7500 read: 394ppm CO2, 545mmol/m3 H2O, 19.9C, 102.1kPa, 97SS â€“ 99 after cleaning
The 7700 read: 1.9ppm CH4, 51RSSI â€“ 74 after cleaning.
CO2 likely rose and H2O likely fell after cleaning as seen at other sites. The wash reservoir was topped off.

We added SRS NDVI sensors sn 2046503368 incoming and sn 2046503402 outgoing. The incoming mount needs another hole drilled and tapped â€“ the drill battery died.

I mounted the staff gauge more securely with a conduit hanger.

Collected the miniDOT and Hobo data.

We left at 11:40

0 photos found

5 sets found

Can't check MBEEWPSWEPGT_cam
9 EP_met graphs found