Field Notes
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Bouldin Corn: 2017-04-26 10:30:00 (DOY 116)
Author: Joe Verfaillie
Others: Daphne, Sam, Kyle
Summary: Initial set up of this site, installation on power line, waiting on end of tractor work before moving soil sensors into the field.
| Bouldin Corn 2017-04-26 I arrived about 10:30 with Daphne, Sam and Kyle. Today is the initial setup of this site. It was cloudy and drizzly at first but after lunch it became party cloudy and very windy with gusts to 11m/s. The fields to the west are completely plowed. The field to the east has a small patch near the duck club building still unplowed possibly because it was too wet. It does not look like the fields have been planted yet. Kyle and Sam took the truck to get the scaffolding we left by the south pump station while Daphne and I started on the power line. We ran a two conductor #10 with ground UF-B direct burial cable from the breaker panel at the east end of the building to the southeast corner of field 48. We stapled the cable to the building and porch near the ground. We used a rented trencher to dig a 12in deep trench from the northwest corner of the porch, just past the end of a north-south drainage ditch to the tower location. It crosses both roads at a diagonal. The cable is in 3/4in plastic conduit at the bottom of the trench. At the building I added a 20A breaker to the electrical panel to supply our line. A Campbell enclosure on the tower holds a box with four standard outlets and a lab power supply for 12VDC. The tower went up as planned. Two levels of 5ft frames with railings on top. We did not have the cross braces for the railings so we tried to manufacture some from 3/4in metal conduit, but the drill battery kept dying. One length still needs to be installed. The soil sensors are all installed near the southern edge of the scaffolding to protect them from any more tractor work. They will be move out into the field later. Equipment Licor 7500A sn 75H-2182 (5.2m height, 36cm ESE of sonic) Licor 7550 sn AIU-1570 (needs pressure coefficients label, updated from database entry) Licor 7700 sn TG1-0421 (5.2m height, 37cm E of sonic) Gill WM sn 074417 (sonic heading is 0deg true north) NR01 sn 2420 PAR in sn 140453 PAR out sn 140441 SHFP-1 sn 10867 SHFP-2 sn 11326 SHFP-3 sn 10861 HMP60 sn L1740395 (on LI-7500 post) PTB 110 Barometer sn L2340502 Tipping Bucket sn 65548-615 (top southeast corner of scaffolding) ML3 theta probe sn M003370 CS655 TDR_A sn 17129 CS655 TDR_B sn 17128 CS655 TDR_C sn 17133 SRS PRI in A sn 913003004 SRS PRI out B sn 897103002 SRS NDVI in C sn 882103020 SRS NDVI out D sn 943103015 SoilT Profile A -2, -4, -8, -16, -32cm SoilT Profile B -2, -4, -8, -16, -32cm SoilT Profile C -2, -4, -8, -16, -32cm CR1000 sn 66251 CFM NL115 sn 13056 AM16/32 sn 21690 AM25T sn 7908 The 7500 read: 403.7ppm CO2, 661.1mmol/m3 H2O, 21.2C, 101.6kPa, 86.2SS The 7700 read: 1.92ppm CH4, 63.5RSSI – 75.1 after cleaning The CR1000 data looked normal, Campbell VWC: 0.25-0.31, Theta probe 700mV |
4 photos found
20170426BC_Trench.jpg ( 2017-04-26 12:48:29 ) Full size: 1440x1920
We used a rented trencher to dig a 12in deep trench from the northwest corner of the porch, just past the end of a north-south drainage ditch to the tower location. It crosses both roads at a diagonal. The power cable (two conductor #10 with ground UF-B direct burial cable) is in 3/4in plastic conduit at the bottom of the trench.
20170426BC_TowerDone.jpg ( 2017-04-26 16:10:18 ) Full size: 1440x1920
Kyle and Daphne on the newly installed corn tower. The corn field is still bare soil.
20170426BC_SonicHeading.jpg ( 2017-04-26 16:13:16 ) Full size: 1440x1920
Sonic orientation with initial tower set up
20170426BC_SettingUp.jpg ( 2017-04-26 12:27:59 ) Full size: 1920x1440
Daphne, Kyle, and Sam setting up the corn tower
6 sets found
No data found for BC_met.
No data found for BC_flux.
Can't check TATWBABCSB_cam
Can't check MBSWEEWPBCBA
No data found for BC_pa.
No data found for BC_arable.