Field Notes

<--2009-07-01 12:00:00 | 2009-07-10 08:00:00-->
Other sites visited today: Sherman Island | Sherman Island
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Twitchell Rice: 2009-07-09 08:30:00 (DOY 190)
Author: Joe Verfaillie
Others: Dennis, Ben

Twitchell
7/9/2009

Arrived about 8:30 with Dennis and Ben. Clear, sunny, breeze, cool.

Setup LGR system. Swapped card before uploading new program to CR1000. TW_CR1kFlux_v3.CR1. This program has new order of columns based on discussions with Matteo:

Table: SI_Fast
Interval: 100 MSEC
Fields:
U Units: m/s
V Units: m/s
W Units: m/s
sos Units: m/s
lgr_sec Units: sec
lgr_ch4 Units: ppm
li_co2 Units: mmol/m^3
li_h2o Units: mmol/m^3

Table: SI_Slow
Interval: 30 MIN
Fields:
batt_volt_Avg
PTemp_Avg
U_Avg Units: m/s
V_Avg Units: m/s
W_Avg Units: m/s
sos_Avg Units: m/s
lgr_ch4_Avg Units: ppm
lgr_p_Avg Units: Torr
lgr_t_Avg Units: C
lgr_ring_Avg Units: usec
lgr_cal_Avg Units: none
li_co2_Avg Units: mmol/m^3
li_h2o_Avg Units: mmol/m^3
li_p_Avg Units: kPa
li_t_Avg Units: C
li_cooler_Avg Units: V
li_diag Units: none
li_band_Avg Units: Hz
li_delay Units: 6.579ms

Moved three huge batteries from Steve to tower site.

Met Jim and Bruce at recirculation pump generator. Seems the generator runs 24/7 expect for maintenance once every three weeks. And we could pull up to two 20A lines from it for our tower. Distance and cost of wire tradeoff.

Matteo arrived about 2pm to continue LGR measurements until about 6pm.

4 photos found

USGS eddy tower at the rice field
20090710TW_FranksTowerSE.jpg ( 2009-07-10 14:25:05 ) Full size: 2048x1536
USGS eddy tower at the rice field

USGS eddy tower at edge of flooded rice paddy
20090710TW_FranksTowerSouth.jpg ( 2009-07-10 14:24:50 ) Full size: 2048x1536
USGS eddy tower at edge of flooded rice paddy

Solar panels and eddy tower on edge of rice field
20090710TW_SolarTower.jpg ( 2009-07-10 14:24:56 ) Full size: 2048x1536
Solar panels and eddy tower on edge of rice field

Rice eddy tower on the edge of the field
20090710TW_Tower.jpg ( 2009-07-10 14:25:13 ) Full size: 2048x1536
Rice eddy tower on the edge of the field

Graphs display:
6 sets found

12 TW_met graphs found

Explore the graph:Soil Heat Flux in a new window

Explore the graph:Solar Radiation in a new window

Explore the graph:Air Temperature in a new window

Explore the graph:Soil Temperature Set 1 in a new window

Explore the graph:Soil Temperature Set 2 in a new window

Explore the graph:Soil Temperature Set 3 in a new window

Explore the graph:Water Temperature in a new window

Explore the graph:RH and Pressure in a new window

Explore the graph:Soil Moisture in a new window

Explore the graph:Rain and Water Level in a new window

Explore the graph:Disolved Oxygen in a new window

Explore the graph:LED NDVI Channels in a new window

5 TW_flux graphs found

Explore the graph:Sonic Anemometer Winds in a new window

Explore the graph:LI7700 CH4 and RSSI in a new window

Explore the graph:Twitchell CH4 in a new window

Explore the graph:LI7500 CO2 and H2O in a new window

Explore the graph:Twitchel Rice Flux Counts in a new window

Can't check TWSI_mixed
Can't check SIMBTWEE_met
1 TW_cam graphs found

Explore the graph:TW Rice Autocam in a new window

Can't check TATWBABCSB_cam