Metadata Report for BODC Series Reference Number 1717096

• Metadata Summary

• Problem Reports

• Data Access Policy

• Narrative Documents

• Project Information

• Data Activity or Cruise Information

• Fixed Station Information

• BODC Quality Flags

• SeaDataNet Quality Flags

Metadata Summary

Problem Reports

No Problem Report Found in the Database

Quality report - iSTAR Moorings

It is clear from data from pressure sensors (and other sensors measuring the orientation of instruments on the mooring) that the iSTAR moorings were occasionally displaced in the water column. Given the location of the mooring it is likely that this disruption was caused by ice bergs knocking in to the mooring array. This was particularly noticeable in the data from moorings iSTAR6 (where the array became ~ 60m deeper on 05 January 2013), iSTAR9 (where the array became ~ 10 m deeper between 14 and 17 November 2013) and PIG_S (where the array became ~ 50 m deeper on the 20 July 2014 and then ~50 m deeper again on 30 July 2015).

Data Access Policy

Open Data supplied by Natural Environment Research Council (NERC)

You must always use the following attribution statement to acknowledge the source of the information: "Contains data supplied by Natural Environment Research Council."

Narrative Documents

BODC Processing - iSTAR Moored Aqualoggers

Data were received by BODC in Matlab files, with one file containing all data from an iSTAR mooring array. The data were reformatted to QXF (a NetCDF file format) by in house software. A separate QXF file was created for data from each instrument. Metadata were also extracted from the originator's file and used to populate the BODC database.

The following tables shows how the variables within the files were mapped to appropriate BODC parameter codes:

Following transfer to QXF, the data were quality controlled using BODC's in-house visualisation software.

Originator's processing - iSTAR Moored Aqualoggers

Data processing

All Aqualoggers temperature sensors were calibrated at BAS on 20 to 22 July 2011 prior to deployment.

Lookup tables used to correct the temperature data are available on request from BODC in the format supplied by the originator.

These calibrations appear to have worked very well, except for Aqualogger S/N 1221 on iSTAR1, which under read considerably, and has had a temperature offset of 0.2967 degrees Celsius applied, based on CTD casts at deployment and recovery.

Project Information

No Project Information held for the Series

Data Activity or Cruise Information

Data Activity

iSTAR1 Mooring

iSTAR1 is a mooring array deployed for the iSTAR programme. The mooring was deployed from RV Araon in March 2012 and recovered from RRS James Clark Ross cruise JR20140126 in March 2014.

Instrument setup

Related Data Activity activities are detailed in Appendix 1

Fixed Station Information

Fixed Station Information

iSTAR1 (trough_W)

Water depth = 605 m

Sampling history

Related Fixed Station activities are detailed in Appendix 2

BODC Quality Control Flags

The following single character qualifying flags may be associated with one or more individual parameters with a data cycle:

SeaDataNet Quality Control Flags

The following single character qualifying flags may be associated with one or more individual parameters with a data cycle:

Appendix 1: iSTAR1

Related series for this Data Activity are presented in the table below. Further information can be found by following the appropriate links.

If you are interested in these series, please be aware we offer a multiple file download service. Should your credentials be insufficient for automatic download, the service also offers a referral to our Enquiries Officer who may be able to negotiate access.

Appendix 2: iSTAR1 (trough_W)

Related series for this Fixed Station are presented in the table below. Further information can be found by following the appropriate links.

If you are interested in these series, please be aware we offer a multiple file download service. Should your credentials be insufficient for automatic download, the service also offers a referral to our Enquiries Officer who may be able to negotiate access.