Field Notes

<--2011-03-30 10:45:00 | 2011-04-15 12:00:00-->
Other sites visited today: Tonzi | Vaira | Mayberry

Tonzi: 2011-04-15 00:00:00 (DOY 105)
Author: Siyan Ma
Others: Joe

Summary: Tonzi: 100% oak leaf out

Tonzi: 100% oak leaf out, yellow and white flowers
Vaira: grass green, purple flowers

Vaira:
• Joe checked computer and downloaded data.
• I cleaned the surface of the radiation sensors and checked rain gauge.
• Soil moisture measured, but the two newly installed profile probes still gave lower values of the top layer. Should we reinstall them?
• Took grass spectrum reflectance.

Tower:
• I checked computer and downloaded data.
• Readings of Tower Li-7500’s CO2 and H2O channel were almost zero. Joe found out there was no setting of the range, and he fixed the problem. The mistake should be avoidable.
• Calibrated the CO2 profile system in the field.

Floor:
• I checked computer and downloaded data.
• Joe made efforts to clarify Tonzi met file names on 3/30/2011. When I try to process them, I realize such changes may cause other confuse and waste time. For example, the old name for Tonzi soil met data is "tz2_*.10X", and now it is changed as "CR10X2_soilt_*.10X". I think we should keep the original "tz2", such as "tz2_soil_*.10X". I have talked to Joe about this idea, and he agreed with it.

Other data collection:
soil moisture
tonzi, 7931AFE, 402165, 574B4B, 402FF3, 574632, 7A432E, 7A3C6E, 7A3B40, 7A4AAA
4/15/2011, 105,
0-15, 37.3, 23.6, 37.0, 21.9, 39.9, 17.1, 19.1, 19.4, 16.2
15-30, 36.8, 33.9, 33.4, 27.3, 29.2, 23.7, 27.1, 27.4, 18.5
30-45, 42.7, 41.9, 39.8, 37.1, 45.2, 26.5, 26.2, 31.0, 31.5
45-60, 39.7, 61.6, 65.0, 47.7, 42.3, 32.5, 38.0, 47.1, 27.6

,A6D882B, A3D04E8, A6D72F5, 0-15, 21.2, 15.0, 29.5,
15-30, 22.8, 10.6, 40.1,
30-45, 33.2, 29.6, 36.2
45-60, 44.0, 47.1, 41.4

vaira, 57318a, 7933dee, 00000128B97F3, 00000128B8072, 00000128BDDE8, , ,
0-15, broken, 15.2, 19.85, 6.5, 4.15,
15-30, broken, 23.9, 24, 10.1, 6.85,
30-45, broken, 31.3, 9.25, 18.55, 22.5,
45-60, broken, 32.7, 24.65, 18.2, 26.55,

dendrometer
245, 16.9
250, 11.1
102, 3.9
79, 21
72, 16
2, 14.7
3, 9.5
6, 18.9
4, 13.8
7, 10.4
8, 5.1
1, 8.4

midday leaf water potential: oak -

groundwater: wells and datalogger – shorten the cable of the datalogger to make sure the sensor is no deeper than 15 ft as Gretchen suggested.
Road: 19.40 ft; floor: 10.09 ft; tower: 13.90 ft.

Field Data

No tank data

Well Depth