Field Notes
<--2015-02-19 09:44:00 | 2015-03-24 09:40:00-->Other sites visited today: Sherman Island | Twitchell Rice | East End | West Pond | Twitchell Alfalfa
Mayberry: 2015-03-05 09:40:00 (DOY 64)
Author: Cove Sturtevant
Others: Joe, Sara
Summary: Data download. PAR tule still bad, maybe bad MX channel. Need better glue for copper mesh on CO2 probes. Bottom MiniDOT probe ok.
| Mayberry 2015-03-05 We arrived at about 09:40 PST. It was sunny, cool, and calm. Sara did water samples and cleaned water sensors while I attended to the tower and Joe replaced the PAR tule sensor. It was reading super high after re-install, and after zeroing the channel in the multi-plexor it read the same thing. Channel might be bad. Joe will think about it and fix later. We also wanted to swap out a forerunner water CO2 probe with copper mesh on it to keep out the critters, but after pulling the profile we realized that the glue holding the copper mesh doesn’t stick well to the probe. No probes have copper mesh at present. Downloaded all data, including MiniDOT data. Left the bottom sensor out of water for a while and it showed a substantial rise from 0 to 7 mV, increasing about the same as the higher probes. I think this sensor is fine, there’s just no oxygen close to the sediment surface. Tule 1 TS16 is bad. Readings CO2: 407 ppm (416 after cleaning) H2O: 450 mmol m-3 (420 after cleaning) signal strength = 98.86% (102.54% after cleaning) p = 102.8 kPa t: 12.6 °C sos = 340 m s-1 CH4: 2.1 ppm RSSI: 38-40% (69% after cleaning) Cleaned rad. Forgot to check 7700 reservoir, but none of the others were close to empty so it should be fine.   |
0 photos found
11 sets found
7 MB_flux graphs found
No data found for MB_met.
27 MB_tule graphs found
Can't check MBWPEESWGT_mixed
1 MB_cam graphs found
Can't check MBEEWPSWEPGT_cam
Can't check SIMBTWEE_met
1 MB_minidot graphs found
Can't check MBSWEEWPBCBA
1 MB_processed graphs found
Can't check MB_fd
1 MB_fd graphs found