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=7857) |
CTD Sensor | APEX-SBE-41 (serial number=2297) |
CTD Sampling Mode | Burst Sampler |
Controller Board | APF 8 |
Additional Sensors/Software | None |
Park Depth | 1000 m |
Profile Depth | 2000 m |
Launch Date | 17-08-2007 |
Number of D-moded Profiles | 89 |
Calibration Date | 30-07-2010 |
Pressure Drift | Surface Pressure Offset corrected |
Salinity Drift | No salinity drift detected |
This float was located in the Coral Sea between, and to the south of, Papua New Guinea and the Solomon Islands, in a region bounded by 154 to 160 ºE and 14 to 18 º S. The float has drifted in a circuitous fashion in a south-easterly direction. There are 33 profiles available for DMQC for this float.
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 24 and 30 ºC and surface salinities from 34.3 to 35.0.
Profiles are very tightly distributed. The first few profiles may be very slightly affected by TBTO (of the order of 0.002).
Profiles look reasonable. At depth there is spread in the profiles. The earlier profiles are significantly fresher at depth than later profiles but this looks fine given the path of the 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.
This float is located right in the middle of the TS envelope from neighbouring floats.
There were inversions in profiles; 105. These were not significant and therefore were not flagged.
Salt hooks were located in profiles; 9,11,14,15,17,21,24,26,28,29,31,33,35,37,39,42,43,46,48,49,52,53,55,57,59,61,63,65,67,69,71,73,75,79,80. These were flagged as QC 4 for both T & S.
The float may have grounded on profiles 49 and 50. No missing profiles. Profiles 1 and 27 had some bad values at the bottom end of the profiles which were QC'd as 4 for both T & S.
The plot below shows the analysis of salinity drift using the WJO/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 theta surface of 0.xx degrees C.
This float is very close to climatologies.
The plots below show the raw float salinity data (solid blue line) compared to neighbouring argo floats (coloured symbols) on a potential temperature surface of xx degrees C. The locality map shows the location of the profiles for this float and for neighbouring floats.
This float is in the middle of the nearby envelope.
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 30-07-2010