This analysis was based on GDAC at 25 Nov 2011
The following table records assumptions about the pressure correction treatment for each float, based mainly on the tech file surface pressure offset parameter name.
| Parameter Name | Correction Type | Alt Cor Type | Model for Alt Cor | Truncating | SP Adjust (dbar) | ||
|---|---|---|---|---|---|---|---|
| Old format tech files - ignored | |||||||
| Other | INVALID | - | - | - | - | ||
| surface_pressure | INVALID | - | - | - | - | ||
| surface_offset | INVALID | - | - | - | - | ||
| pressure_sensor_offset | INVALID | - | - | - | - | ||
| start_surface_pressure | INVALID | - | - | - | - | ||
| pressure_offset_(counts) | INVALID | - | - | - | - | ||
| pressure_offset_(dbar) | INVALID | - | - | - | - | ||
| pres_offsetadjustment_dbar | INVALID | - | - | - | - | ||
| pressure_offset_dbar | INVALID | - | - | - | - | ||
| pres_surfacecomplement_dbar | INVALID | - | - | - | - | ||
| New format tech files | |||||||
| Missing | INVALID | - | - | - | - | ||
| pres_surfaceoffsettruncatedplus5dbar_dbar | 1 | - | - | yes | 5 | ||
| pres_surfaceoffsettruncated_dbar | 1 | - | - | yes | - | ||
| pres_surfaceoffsetnottruncated_dbar | 1 | 0 | SOLO, PROVOR | - | - | ||
| pres_surfaceoffsetnottruncatedplus5dbar_dbar | 1 | - | - | - | 5 | ||
| pres_surfaceoffsetcorrectednotreset_1dbarresolution_dbar | 0 | - | - | - | - | ||
| pres_surfaceoffsetcorrectednotreset_1cbarresolution_dbar | 0 | - | - | - | - | ||
| pres_surfaceoffsetbeforereset_dbar | 0 | 1 | SOLO | - | - | ||
| pres_surfaceoffsetbeforeresettruncated_dbar | 3 | - | - | - | - | ||
| pres_surfaceoffsetafterreset_dbar | 2 | - | - | - | - | ||
| pres_surfaceoffsetbeforereset_1dbarresolution_dbar | 0 | - | - | - | - | ||
| pres_surfaceoffsetbeforereset_1cbarresolution_dbar | 2 | - | - | - | - | ||
| pres_surfaceoffsetafterreset_1cbarresolution_dbar | 0 | - | - | - | - | ||
| pres_surfaceoffsetbeforereset_5cbarresolution_dbar | 0 | - | - | - | - | ||
| pres_surfaceoffsetafterreset_5cbarresolution_dbar | 0 | - | - | - | - | ||
| pres_surfaceoffsetbeforereset_4mbarresolution_dbar | 0 | - | - | - | - | ||
| pres_surfaceoffsetafterreset_4mbarresolution_dbar | 0 | - | - | - | - | ||
| pres_descentstart_dbar | 0 | 1 | SOLO | - | - | ||
| pres_descentstartafterreset_dbar | 0 | 1 | SOLO | - | - | ||
| pres_offsetadjustment_dbar | INVALID | - | - | - | - | ||
| pres_surfaceoffsettruncatedplus3dbar_dbar | INVALID | - | - | - | - | ||
| pressure_offset_dbar | INVALID | - | - | - | - | ||
| Correction Type | RT | DM |
|---|---|---|
| 0 | No correction required - auto-correcting | |
| 1 | P-SP(n) | P-SP(n+1) |
| 2 | no correction required | no correction normally but sometimes warranted |
| 3 | no correction required | no correction normally but sometimes required due to 40dbar limit on autocorrection |
Truncating: a type which truncated SP
SP Adjust (dbar): eg 5 (dbar) for many Apex floats