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=10278) |
CTD Sensor | APEX-SBE-41 (serial number=2906) |
CTD Sampling Mode | Burst Sampler |
Controller Board | APF 8 |
Additional Sensors/Software | None |
Park Depth | 1000 m |
Profile Depth | 2000 m |
Launch Date | 30-04-2007 |
Number of D-moded Profiles | 130 |
Calibration Date | 06-06-2012 |
Pressure Drift | Surface Pressure Offset corrected |
Salinity Drift | No salinity drift detected |
This float was deployed in the northern Tasman Sea, to the east of Brisbane, in a region bounded by 148 to 160 ºE and 24 to 44 ºS. The float has been incorporated into multiple eddies and the EAC in its journey south.
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.
Surface temperatures generally varied between 15 and 27 ºC and surface salinities from 35.1 to 35.8.
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 profile are reasonably distributed for this float.
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.
The profiles are right in the middle of the envelope.
There were no inversions.
Salt hooks were located in profiles; 2,3,4,5,6,7,8,9,11,13,15,17,19,20,23,24,26,29,31,33,36,39,41,104,106,107,109,111,114,116,118,121,122,123,125,128,130. These were flagged as QC 4 for both T & S.
There were no missing profiles. The last value of profile 10 was flagged as QC4. The float grounded on many profiles, flagged the last two values of these profiles as QC=4 for both T&S. Also flagged the top part of profile 43 as this looked odd.
The plot below shows the analysis of salinity drift using the WJO/OW software.
This float requires no correction.
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.
The float is fresh offset by about 0.005 from G&K and CARS. There is no TBTO fouling.
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.
There is a spread of about 0.01 amongst neighbouring floats. This float looks fine. The float has crossed a front into lower salinity waters at around pf 49.
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 06-06-2012