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=2328577) |
CTD Sensor | APEX-SBE-41 (serial number=3007) |
CTD Sampling Mode | Burst Sampler |
Controller Board | APF 8 |
Additional Sensors/Software | None |
Park Depth | 1000 m |
Profile Depth | 2000 m |
Launch Date | 29-08-2007 |
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 Indian Ocean, south of Jakarta and west of the Kimberly, W.A., Australia, in a region bounded by 99 to 107 ºE and 13 to 17 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.
Surface temperatures generally varied between 24.5 and 28.5 ºC and surface salinities from 33.8 to 34.9.
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.
There is high variability in the surface and mid layers. There is a spread of about 0.01 psu at depth.
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 is a high degree of variability between floats at depth with a spread of about 0.02. Our float sits the middle of the envelope (towards the fresher side).
There were inversions in profiles; 8,44,70,78 which were not significant and were not flagged and one spike in profile 68 which was flagged as QC=4 in both T & S.
Salt hooks were located in profiles; 5,8,10,12,15,16,22,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59,61,63,71,73,76,77,79,82,83,86,89. These were flagged as QC 4 for both T & S.
The last value of profile 13 was flagged as QC4 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 very similar to other nearby argo data.
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