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SOSARGO stands for "Special Oxygen Sensor Argo Float" designed and manufactured at University of Washington. Each float has an Aanderaa O2 optode installed on a 61 cm stalk above the end cap, which allows the float to use the atmospheric oxygen for in-situ calibrations in the field.

Floats marked with * are BGC - "Biogeochemical Argo Floats" which do not have the tall stalk that SOSARGO floats employ. This webpage provides data from 42 SOSARGO floats, and 5 BGCARGO floats. Click float number on the left panel for data from each float. 

More information about UW ARGO floats can be found here: http://flux.ocean.washington.edu/


Locations Click on map to zoom in  (opens separate window)
                
                             Northwest Pacific
https://sites.google.com/a/uw.edu/sosargo/home/NW_Pacific.gif  
                                       
                                 Central and Eastern Pacific
https://sites.google.com/a/uw.edu/sosargo/home/Central_E_Pacific.gif



                                     Atlantic
https://sites.google.com/a/uw.edu/sosargo/home/Atlantic.gif


                                          Arabian Sea
https://sites.google.com/a/uw.edu/sosargo/home/Arabian_sea.gif?attredirects=0


                                         Eastern Indian Ocean
https://sites.google.com/a/uw.edu/sosargo/home/Inidan_Ocean.gif?attredirects=0                                                     

Data Description for each float

 

Part 1: Figures

Page 1

Large map

Zoom-in map

Red squares show float pathway, the black square shows the start point. 

Theta-S plot

Potential temperature vs Salinity

Page 2

0-200 m Oxygen Profile

X: time, Y: depth, Z(colorbar): Oxygen concentration*

Black line: mix-layer depth calculated from density difference (de Boyer Montégut, et al. 2004). A density threshold of 0.03 kg m-3 is used with a reference depth of 10 m.

0-200 m Oxygen supersaturation % Profile

X: time, Y: depth, Z(colorbar): Oxygen supersaturation %

Black line: mix-layer depth

0-200 m Temperature Profile

X: time, Y: depth, Z(colorbar): Temperature

Black line: mix-layer depth

0-200 m Salinity Profile

X: time, Y: depth, Z(colorbar): Salinity

Black line: mix-layer depth

Page 3

0-200 m Oxygen supersaturation % Profile 

X: time, Y: depth, Z(colorbar, white represents zero): Oxygen supersaturation %

Black line: mix-layer depth

Page 4

Atmospheric Pressure plot

Atmosphere (mbar) from NCEP Reanalysis data vs time.

Atmospheric pO2 plots

Green line: partial pressure of oxygen in the atmosphere as read by the optode.

Black line: partial pressure of oxygen in the atmosphere during night hours (2200-0600 local) from NCEP Reanalysis.

Red line: partial pressure of oxygen in the atmosphere during night hours (2200-0600 local) read from the optode. *BGC floats do not have this night filter because all points are accepted.

Percent difference plot

X: time, Y:Optode pO2 of atm - NCEP pO2 of atm. Mean difference and standard deviation between optode and NCEP readings given.

Page 5

Linear drift plot with filtered data

X: time, Y:Optode pO2 of atm - NCEP pO2 of atm. Red squares: Data which passed though filters. Line of best fit given.

* Oxygen concentration has been corrected using the air oxygen measurements.

 

 

Part 2: Data files

 

Profile Data (****output.csv)

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Float NO

 Profile NO

 Matlab Time

 Excel Time

 Longitude

 Latitude

Pressure

(Depth)

Temperature

 

Salinity

  Optode 

T-phase

 Optode Temperature

 pO2*

 

* pO2 is calculated from Optode T-phase and Optode Temperature using the lab calibration result (see Optode Calibration Table).

 

Air Data (****surf.csv)

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Float NO

 Profile NO

 Matlab Time

 Excel Time

 Longitude

 Latitude

  Optode  T-phase

 Optode Temperature

  pO2*

* pO2 is calculated from Optode T-phase and Optode Temperature using the lab calibration result (see Optode Calibration Table).