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=2402612) |
CTD Sensor | APEX-SBE-41 (serial number=3263) |
CTD Sampling Mode | Burst Sampler |
Controller Board | APF 9 |
Additional Sensors/Software | None |
Park Depth | 1000 m |
Profile Depth | 2000 m |
Launch Date | 18-11-2007 |
Number of D-moded Profiles | 80 |
Calibration Date | 28-07-2010 |
Pressure Drift | Surface Pressure Offset corrected |
Salinity Drift | No salinity drift detected |
This float is located in the central Indian Ocean close to a midocean ridge in a region bounded by 80 to 88 ºE and 15 to 18 º S.
The surface pressure for this float is shown in the plot below. There is no indication of pressure drift.
Potential Temperature-Salinity (a), Location (b, Max Temperature (c) and Sea Surface Salinity (d) plots located below.
Surface temperatures generally varied between 24 and 28 ºC and surface salinities from 34.3 to 35.0.
The plot below shows the potential-temperature/salinity curve for the deepest theta levels where the relationship between the two parameters should show the least variation.
The TS plot looks reasonable 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 curve for the deepest theta levels for this float (in black) and nearby argo floats (coloured) is displayed below.
There are not many floats to compare this one too but the deep TS profiles look fine.
There were inversions in profiles; 29,70. These were not significant and were therefore not flagged.
Salt hooks were located in profiles; 5,10. These were flagged as QC 4 for both T & S.
This float did not ground and there were no missing profiles. A spike in profile 24 at 900 m depth was flagged as QC=4 for both T & S. A spike in profile 16 at 1500 m depth was similarly flagged. Profile 55 had multiple bad values - these were QC'd as 4.
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 within 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 28-07-2010