Skip to main content
rice field banner biometlab logo
   
   
 
   
   
   
   
   
 
 

Field Notes

<--2007-07-12 11:00:00 | 2007-07-23 00:00:00-->

Sherman Island: 2007-07-20 14:00:00 (DOY 201)
Author: Matteo Detto
Others:

Summary: Changed filter 2micron and removed the Gelman; methane system shut down due to pressure drop on 13 July; data downloaded for Sherman island and from laser.

Sherman Island - Methane Study

Date: 20 July 2007

Day: 201

Standard Time in: 12:00 Out: 14:00

Who: MD

Weather: clear sky and windy

Phenology: tall weed, few still in flower, green-yellow

Tasks

  1. check and download data at Sherman Island
  2. download data from laser
  3. other: -------------

Check list

  1. Fence and gate power:
  2. Datalogger Solar Panel and Batteries:
  3. Reading from Gillsonic (H2O and CO2 should be in the range of 0 – 5 v.)

Time

Path/File name

D:\Data\SI07 .raw

mean

std

mean

std

w

-1.0

Ts

27.0

u

2.8

H2O

3.3

v

3.6

CO2

1.7

CH4

1.4

  1. Methane Sensor (type Scroll Scroll 2)

Methane Hi-flow ppm

1.750 / 1.760*

Cell Pressure – near 159

83.4 / 111*

Cell Temperature

35.71

Mirror time

15.3

Sample rate

10 Hz

Methane low flow put back in high flow !

Pump status

Odd noise !!!

Filter Status

Water traps

* after changing the filter

  1. If Swapping Li-7500 Analyzer. (Remove SN# ; install SN# )
  2. Check the fans of air temp. and relative humidity sensors
  3. Check MD-9 system connections
  4. Check CR23X with two multiplexers and sensor values
  5. Check levels of Radiation sensors, clear up surfaces.

Closed gate and set up fence.

Other Notes:

I have changed the filter 2micron and removed the Gelman

The pressure dropped 13 July (from txt files), maybe after putting the new

Filters . Since the pressure didn’t go back 137 I shutted down the methane system

Remember next time to:

0 photos found

Graphs display:
7 sets found

No data found for SI_mp.
10 SI_met graphs found

Solar Radiation

Energy

Soil Temperatures Set 1

Soil Temperatures Set 2

Soil Temperatures Set 3

Soil Temperature at -16cm

Solar Radiation from CNR1

Sherman Island Rain

Sherman Well Level

Box Temperatures

Can't check SI_mixed
2 SI_mixed graphs found

Theta Probes

Sherman Island Air Temperatures

4 SI_flx graphs found

Sonic Wind

CH4 Concentrations

Sample Counts

LI7500 CO2 and H2O

No data found for SI_soilco2.
Can't check TWSI_mixed
Can't check SIMBTWEE_met

 
 

Login
Select Notes:
This material is based upon work supported by the National Science Foundation and US Department of Energy. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporters.