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=10181) |
CTD Sensor | APEX-SBE-41 (serial number=2968) |
CTD Sampling Mode | Burst Sampler |
Controller Board | APF 8 |
Additional Sensors/Software | None |
Park Depth | 1000 m |
Profile Depth | 2000 m |
Launch Date | 11-03-2007 |
Number of D-moded Profiles | 107 |
Calibration Date | 13-08-2010 |
Pressure Drift | Surface Pressure Offset corrected |
Salinity Drift | No salinity drift detected |
This float was deployed in the Coral Sea, in-between Papua New Guinea and Queensland, in a region bounded by 154 to 158 ºE and 12 to 16 ºS. The float has eddied around in a very confined area. There are 51 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 26 and 31 ºC and surface salinities from 34.0 to 35.0.
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 profiles are reasonably distributed through most of the water column, although a few of the early profiles deviate around the salinity maximum. The deep profiles for this float are tightly distributed.
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 are not many floats in this region. The profiles at depth are tightly distributed and the profiles for this float are at the fresher end of the spectrum.
There were inversions in profiles; 13(not significant),45(surface, flagged as QC=4),58(not significant),59(surface value, not significant) and 102 (not significant).
Salt hooks were located in profiles; 4,6,10,14,15,18,20,22,25,26,28,30,32,36,37,41,43,46,48,50,52,53,55,58,60,62,64,66,68,70,74,76,78,80,83,85,87,91,92,94,96,98,99,102. These were flagged as QC 4 for both T & S.
There were no missing profiles. Profiles 12 and 13 were shortened. Flagged a few values at the bottom of these profiles.
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.
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 deep potential temperature surface. The locality map shows the location of the profiles for this float and for neighbouring floats.
Float is in the middle of the nearby argo 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 13-08-2010