Field Notes
<--2014-12-23 13:15:00 | 2015-01-20 14:00:00-->Other sites visited today: Sherman Island | Twitchell Rice | West Pond | Mayberry | East End | Tonzi
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Twitchell Alfalfa: 2015-01-07 13:00:00 (DOY 7)
Author: Sara Knox
Others: Dennis
Summary: Swapped 7500. Downloaded data. Ants in soil CO2 box.
| Alfalfa 2015-01-07 We arrived at around 13:00 PST. The road to the field was still flooded so like last week we drove along the edge of the field to the tower. The vegetation was still quite short (between ~2-5cm). Dennis made soil CO2 measurements while I downloaded data and swapped the 7500 (removed sn 75H-2182, installed sn 75H-2176). We also made spectral measurements. Didn't replace the HMP60 fan - should make sure to do that next time. There were a ton of ants in the soil CO2 box. Cove and Joe went back later in the afternoon to install ant traps (good thing they did since I had a forgetful moment while I was there early…..). The met and soil CO2 data looked good expect for FD temperature 2 which read –INF. 7500 readings: CO2 = 429 ppm before swap (424 after swap) H2O = 498 mmol m-3 before swap (477 after swap) signal strength = 80% before swap (89% after swap) p = 102 kPa t = 19 C Cleaned rad. Met looked good. |
0 photos found
7 sets found
Can't check TA_met
11 TA_met graphs found
Can't check TA_rad
3 TA_rad graphs found
Can't check TA_flux
5 TA_flux graphs found
Can't check TA_soilco2
7 TA_soilco2 graphs found
No data found for TA_arable.
No data found for TA_cam.
Can't check TATWBABCSB_cam