Field Notes

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

Explore the graph:Solar Radiation in a new window

Explore the graph:Energy in a new window

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

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

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

Explore the graph:Soil Temperature at -16cm in a new window

Explore the graph:Solar Radiation from CNR1 in a new window

Explore the graph:Sherman Island Rain in a new window

Explore the graph:Sherman Well Level in a new window

Explore the graph:Box Temperatures in a new window

Can't check SI_mixed
2 SI_mixed graphs found

Explore the graph:Theta Probes in a new window

Explore the graph:Sherman Island Air Temperatures in a new window

4 SI_flx graphs found

Explore the graph:Sonic Wind in a new window

Explore the graph:CH4 Concentrations in a new window

Explore the graph:Sample Counts in a new window

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

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