Field Notes

East Pond: 2018-05-10 12:20:00 (DOY 130)
Author: Joe Verfaillie
Others:

Summary: Worked on solar system swapping charge controllers, remounted PAR sensors, located pond outlet and pulled one board.

East Pond
2018-05-10

I arrived at about 12:20pm. It was sunny and warm with some high thin clouds. The water level is unchanged at 65cm on the staff gauge.

I worked on the solar system some more, however I forgot to bring the new 30A breakers so it will still need some more work. I installed the 30A charge controller sn 11400080 from Twitchell Alfalfa in a new smaller box and mounted the box to the northeast post of the solar panels. I had to rewire the solar panel junction boxes so that the longer wire was in the correct location. The cable on the batteries was not long enough and I had to slide the batteries around to get enough slack to make the connection. This needs to be replaced and the 30A breakers added to the panel and battery lines. I removed the old box with the two 15A controllers sn 12501584 and sn 12501588.

After messing with the power, the tower seemed to be running properly.
The 7500 read: 409ppm CO2, 561mmol/m3 H2O, 27.1C, 101.5kPa, 98.1SS
The 7700 read: 1.96ppm CH4, 43.5RSSI â€“ 71 after cleaning.

I remounted the PAR sensors. I removed them from the bracket on the side of the square boom arm and mounted them directly to the top and bottom of the arm.

I found the East Pond outlet and marked it with some pink flagging tape. It was right where the map said it was near the dogleg in the north levee. It was heavily overgrown and I passed it by at first only finding it on my way back. The water level was about a board and a half (13cm) below the top. I was able to pull the top board but the rest will need to be dug out.

0 photos found

5 sets found

Can't check MBEEWPSWEPGT_cam
9 EP_met graphs found