Field Notes
2016-06-01 08:30:00-->Other sites visited today: Twitchell Rice | East End | West Pond | Twitchell Alfalfa | Mayberry
Sherman Wetland: 2016-05-24 09:30:00 (DOY 145)
Author: Joe Verfaillie
Others: Dennis, Kyle, Elke, Alison
Summary: Initial tower setup, mostly went well, running when we left, see notes from odds and ends needing to be finished
| Sherman Wetland 2016-05-24 I arrived about 9:30 with Dennis, Kyle, Elke and Alison. It was mild and mostly sunny with a good breeze from the west. The water level at the site is much lower with the pond being almost completely empty. The ground is very hard and dry and we could easily drive the truck over the levee and out to the site. The mission for the day was to set up the new tower. After dropping off the truck load of equipment, Kyle and Dennis went to Twitchell to pick up some more scaffolding and lumber. Elke and Alison went to Twtichell to start the regular data rounds. I worked on bridging the channel on the east side of the tower. Two pairs of 12 foot 2x12s laid end to end with staked supports in the middle and ends did the trick. I moved the two layers of scaffolding we had set up previously away from the channel and to move level ground. I also move much of the equipment across the channel to the tower location. When Dennis and Kyle returned we added the top railing to the tower scaffolding and built a one and a half layer scaffolding for the solar panels. The solar panels are in the pond about 50 feet south of the main tower. We are short one board walk and need to bring out another one next time. While I put together the solar power, Dennis and Kyle started putting mounts and equipment on the main tower. I brought the wrong couplers for the eddy mounts and we had to ask Elke and Alison to jump the fence into Rick Carter’s yard to get the missing part. When we put the batteries on the solar power scaffolding that side of the scaffolding began to sink into the mud. After a couple tries we managed to rise the base jacks on that side to their highest point and lower the other side a bit to level it out. If it continues to sink we may have to take it down and put in some pilings. The drill’s battery ran down putting in the board walk bridge so we were not able to drill holes for u-bolts to secure the battery box, the charge controller box and the cross beams for the met data logger box. We also need to drill holes in the fence post to tie the towers down. The Hukseflux 4 channel radiometer had a larger mount than the previous ones so I will have to come up with an adapter to fit the other hardware. I could not find the correct u-bolt for the HMP60 housing so it is only loosely secured. The level of the radiometers should be checked. Split loom should be added to the cables and 7700 wash tubing to reduce sun damage. I did not have time to add the camera post and Stardot Phenocam. The CR1000 program and settings will have to be edited for the camera as well. When Elke and Alison returned with the missing part the eddy equipment was quickly mounted and everything seemed to be running okay. We forgot to fill the wash reservoir for the 7700. I’ll do that when I go to Tonzi on Thursday. The 3D positions of all the sensors still needs to be measured. |
1 photos found
20160524SW_Site.jpg ( 2016-05-24 00:00:00 ) Full size: 1024x768
view of field site
7 sets found
Can't check MBWPEESWGT_mixed
Can't check MBEEWPSWEPGT_cam
No data found for SW_met.
No data found for SW_flux.
Can't check MBSWEEWPBCBA
Can't check SW_Temp
14 SW_Temp graphs found
No data found for SW_arable.