The table below provides basic information about the float, including primary sensors, mission parameters and current status of profiles.
Institute | CSIRO |
Principal Investigator | Susan Wijffels |
Pressure Sensor | Druck (serial number=10495) |
CTD Sensor | APEX-SBE-41 (serial number=2933) |
CTD Sampling Mode | Burst Sampler |
Controller Board | APF 8 |
Additional Sensors/Software | None |
Park Depth | 1000 m |
Profile Depth | 2000 m |
Launch Date | 14-04-2008 |
Number of D-moded Profiles | 65 |
Calibration Date | 22-07-2010 |
Pressure Drift | Surface Pressure Offset corrected |
Salinity Drift | No salinity drift detected |
This float was located to the southwest of Tasmania, Australia, in an area bounded by 142 to 147 ºE and 40 to 46 º S.
The surface pressure for this float is shown in the plot below.
Potential Temperature-Salinity (a), Location (b, Max Temperature (c) and Sea Surface Salinity (d) plots located below.
The plot below shows the potential-temperature/salinity relationship for the deepest theta levels where the relationship between the two parameters should show the least variation.
The two plots below show a). the location of this float (black circles) in relation to the position of other nearby argo floats (coloured circles) and b). The potential-temperature/salinity curve for this float (in black) compared to nearby argo floats (coloured).
The potential-temperature/salinity relation for the deepest theta levels for this float (in black) and nearby argo floats (coloured) is displayed below.
There were inversions in profiles; 34,35,43,45. These were not significant and were not flagged.
Salt hooks were located in profiles;1,2,3,4,5,6,7,8,11,13,15,17,19,21,23,25,27,31,33,35,37,39,42,43,44,46,49,51,53,54,57,58,65. These were flagged as QC 4 for both T & S.
Profile 21 has a large spike in T & S (QC 2 values =4), also spikes at surface. QC spike in pf 14 as 4. Profiles 21 and 22 had strange surface values, flag top bit. Float grounded on pf 41 but there are no anomlous values.
The plot below shows the analysis of salinity drift using the OW software.
The four plots below show the salinity anomalies on theta surfaces compared to (a) the Gouretski and Kolterman climatology, (b) the CARS (CSIRO Atlas of Regional Seas)/WOA (World Ocean Atlas) climatology, (c) the anomalies within the float series itself, (i.e. the salinity anomaly of each profile from the mean profile average for the float and (d) the raw float salinity compared to the CARS and G&K climatological salinity on a deep theta surface.
Float has crossed a front between pfs 13 and 14. The float record looks ok.
The plots below show the raw float salinity data (solid blue line) compared to neighbouring argo floats (coloured symbols) on a deep potential temperature surface. The locality map shows the location of the profiles for this float and for neighbouring floats.
This float is at the upper end of the salinity spectrum but looks okay.
This float required no salinity drift correction.
The plot below summarises the QC flags and salinity differences for the raw and adjusted salinity fields in the final delayed mode files submitted to the GDAC.
Created 22-07-2010