Metadata Report for BODC Series Reference Number 2052569
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
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Problem Reports
No Problem Report Found in the Database
Data Access Policy
Open Data
These data have no specific confidentiality restrictions for users. However, users must acknowledge data sources as it is not ethical to publish data without proper attribution. Any publication or other output resulting from usage of the data should include an acknowledgment.
If the Information Provider does not provide a specific attribution statement, or if you are using Information from several Information Providers and multiple attributions are not practical in your product or application, you may consider using the following:
"Contains public sector information licensed under the Open Government Licence v1.0."
Narrative Documents
Sea-Bird SBE 37 SMP {MicroCAT-CTP} (submersible) CTD logger
A high accuracy conductivity and temperature recorder with an integrated pressure sensor designed for deployment on moorings. The SM model uses a serial interface (SM) for real-time data transmissions and has internal batteries. The device is fitted with an integral pump (P).
For more information, please see this document: https://www.bodc.ac.uk/data/documents/nodb/pdf/SeaBird-datasheet-SBE37-SMP-July18.pdf
Processing by BODC of Moored MicroCATs: AR30-04
The SBE 37 MicroCAT data were supplied to BODC as ASCII files representing the data collected from MicroCAT sensors deployed at the EB1, WB1, and WB2 sites as well as the IB3, IB4, and IB5 sites during cruise AR30-04.
During transfer to BODC internal format (QXF) the originator's variables were mapped to unique BODC parameter codes. The following table shows the paramater mapping:
Originator's variable | Units | BODC Code | Units | Comments |
---|---|---|---|---|
YY | - | - | - | Converted to BODC date and time format |
MM | - | - | - | Converted to BODC date and time format |
DD | - | - | - | Converted to BODC date and time format |
HH | - | - | - | Converted to BODC date and time format |
T | °C | TEMPPR01 | °C | - |
C | mS/cm | CNDCPR01 | S/m | Conversion /10 |
P | dbar | PREXMCAT | dbar | - |
Following transfer the data were screened using BODC in-house visualisation software. Suspect data values were assigned the appropriate BODC data quality flag. Missing data values, where present, were changed to the missing data value and assigned a BODC data quality flag.
Processing by originator of Moored MicroCATs: AR30-04
Sampling Strategy
During the RV Neil Armstrong cruise AR30-04, 11 Seabird MicroCATs were deployed at the UK-OSNAP EB1 site, 9 at the WB1 site, and 3 at the WB2 site. Additionally, 12 MicroCATs were deployed at the IB3 site, 12 at the IB4 site, and 7 at the IB5 site. They were set to record temperature, conductivity, and pressure. Some MicroCATs also recorded oxygen. These moorings were recovered during the RRS Discovery cruise DY120.
Mooring site | Mooring location (latitude, longitude) | Water depth (m) | Deployment time (GMT) | Recovery time (GMT) |
---|---|---|---|---|
EB1 | 57.1005, -9.5683 | 1800 | 08/07/2018 17:00 | 12/10/2020 10:30 |
WB1 | 57.4693, -12.7057 | 1600 | 06/07/2018 17:00 | 14/10/2020 07:00 |
WB2 | 57.4717, -12.3117 | 1600 | 09/07/2018 22:30 | 14/10/2020 07:00 |
IB3 | 57.9901, -24.3533 | 2850 | 03/07/2018 18:00 | 19/10/2020 12:30 |
IB4 | 57.9898, -21.1462 | 2919 | 04/07/2018 17:00 | 17/10/2020 11:00 |
IB5 | 57.801, -19.1707 | 900 | 05/07/2018 12:00 | 16/10/2020 07:00 |
Data Acquisition and Initial Processing
The MicroCATs were calibrated against the CTD sensors. The MicroCATs were positioned on the CTD rosette and deployed before and after their deployment on the mooring. The calibrations were carried out based on 12 to 16 depths with 5 minute bottle stops. The MicroCATs were set to sample at their maximum rate of 0.1 Hz. For the EB1 mooring SBE 37 SMP-ODO MicroCATs measuring concentrations of dissolved oxygen, longer bottle stops of 20-30 minutes in duration were scheduled during the upcast. For calibration, the instruments were set to sample at 110 second intervals.
The processed data were supplied to BODC for banking. Oxygen data was not included and will be ingested separately by BODC.
Project Information
UK - Overturning in the Subpolar North Atlantic Programme (UK-OSNAP) Programme
UK-OSNAP is part of an international collaboration to establish a transoceanic observing system in the subpolar North Atlantic. The aim is to quantify and understand the Subpolar Gyre's response to local and remote forcing of mass, heat and freshwater fluxes, within the conceptual framework of the Atlantic Meridional Overturning Circulation (AMOC).
UK-OSNAP is developing a new observing system to provide a continuous record of full-depth, trans-basin mass, heat, and freshwater fluxes. Combining these sustained measurements with innovative modelling techniques will enable the project to characterise the circulation and fluxes of the North Atlantic Subpolar Gyre.
UK-OSNAP is funded by the Natural Environment Research Council (NERC). The project is led by the National Oceanography Centre (NOC) with partners in the University of Liverpool, the University of Oxford and the Scottish Association for Marine Science (SAMS). It is a part of international OSNAP that is led by USA and includes 10 further partner groups in Canada, France, Germany, the Netherlands and China. The project involves fieldwork at sea and model studies.
The OSNAP observing system consists of two legs: one extending from southern Labrador to the southwestern tip of Greenland across the mouth of the Labrador Sea (OSNAP West), and the second from the southeastern tip of Greenland to Scotland (OSNAP East). The observing system also includes subsurface floats (OSNAP Floats) in order to trace the pathways of overflow waters in the basin and to assess the connectivity of currents crossing the OSNAP line.
NERC have added an extension to UK-OSNAP, until October 2024. This will result in the UK-OSNAP-Decade: 10 years of observing and understanding the overturning circulation in the subpolar North Atlantic (2014-2024).
Data Activity or Cruise Information
Data Activity
Start Date (yyyy-mm-dd) | 2018-07-04 |
End Date (yyyy-mm-dd) | 2020-10-17 |
Organization Undertaking Activity | National Oceanography Centre, Southampton |
Country of Organization | United Kingdom |
Originator's Data Activity Identifier | IB4_07_2018 |
Platform Category | subsurface mooring |
Ellett Array Moored Instruments IB4 2018-2020
This rig was deployed as part of the Iceland Basin Array.
Deployment Cruise | RV Neil Armstrong 30-04 |
---|---|
Recovery Cruise | RRS Discovery DY120 |
The rig was held down by a 1900 kilogram anchor on the seabed at 2919 metres depth. It was kept erect by 44" syntactic float at 75 metres depth and 2 glass spheres at 45 metres depth.
The instruments deployed on the rig were as follows:
Approximate Depth(m) | Instrument | Serial Number |
---|---|---|
47 | SBE37 SMP MicroCAT | 9373 |
75 | RDI WorkHorse 300kHz ADCP - Up | 20962 |
75 | RDI WorkHorse 300kHz ADCP - Down | 20958 |
103 | SBE37 SMP MicroCAT | 14366 |
199 | SBE37 SMP MicroCAT | 11332 |
348 | SBE37 SMP MicroCAT | 9371 |
498 | SBE37 SMP MicroCAT | 11326 |
698 | SBE37 SMP MicroCAT | 8077 |
901 | SBE37 SMP MicroCAT | 8079 |
1199 | SBE37 SMP MicroCAT | 11331 |
1469 | Nortek Aquadopp | 8120 |
1502 | SBE37 SMP MicroCAT | 8078 |
1902 | SBE37 SMP MicroCAT | 9374 |
2297 | Nortek Aquadopp | 11051 |
2302 | SBE37 SMP MicroCAT | 11323 |
2796 | Nortek Aquadopp | 13142 |
2802 | SBE37 SMP MicroCAT | 11328 |
There were no issues with any of the sensors reported.
Related Data Activity activities are detailed in Appendix 1
Cruise
Cruise Name | AR30-04 (F2018-007, OSNAP East 2018) |
Departure Date | 2018-07-01 |
Arrival Date | 2018-07-29 |
Principal Scientist(s) | William E Johns (Rosenstiel School of Marine and Atmospheric Science) |
Ship | RV Neil Armstrong |
Complete Cruise Metadata Report is available here
Fixed Station Information
Fixed Station Information
Station Name | Extended Ellett Line Station IB4 |
Category | Offshore location |
Latitude | 58° 30.00' N |
Longitude | 16° 0.00' W |
Water depth below MSL | 1210.0 m |
Extended Ellett Line: Fixed Station IB4
Station IB4 is one of the fixed CTD stations, which together form The Extended Ellett Line. The line lies between Iceland and the Sound of Mull (Scotland) crossing the Iceland Basin and Rockall Trough via the outcrop of Rockall. As part of this initiative, CTD dips, together with associated discrete sampling of the water column, have typically been carried out annually at this station since September 1996.
From 2018 this mooring contributed to the UK-OSNAP project. It was referred to as the OSNAP Iceland Basin Array.
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:
Flag | Description |
---|---|
Blank | Unqualified |
< | Below detection limit |
> | In excess of quoted value |
A | Taxonomic flag for affinis (aff.) |
B | Beginning of CTD Down/Up Cast |
C | Taxonomic flag for confer (cf.) |
D | Thermometric depth |
E | End of CTD Down/Up Cast |
G | Non-taxonomic biological characteristic uncertainty |
H | Extrapolated value |
I | Taxonomic flag for single species (sp.) |
K | Improbable value - unknown quality control source |
L | Improbable value - originator's quality control |
M | Improbable value - BODC quality control |
N | Null value |
O | Improbable value - user quality control |
P | Trace/calm |
Q | Indeterminate |
R | Replacement value |
S | Estimated value |
T | Interpolated value |
U | Uncalibrated |
W | Control value |
X | Excessive difference |
SeaDataNet Quality Control Flags
The following single character qualifying flags may be associated with one or more individual parameters with a data cycle:
Flag | Description |
---|---|
0 | no quality control |
1 | good value |
2 | probably good value |
3 | probably bad value |
4 | bad value |
5 | changed value |
6 | value below detection |
7 | value in excess |
8 | interpolated value |
9 | missing value |
A | value phenomenon uncertain |
B | nominal value |
Q | value below limit of quantification |
Appendix 1: IB4_07_2018
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.
Series Identifier | Data Category | Start date/time | Start position | Cruise |
---|---|---|---|---|
2052373 | Currents -subsurface Eulerian | 2018-07-04 17:00:00 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052385 | Currents -subsurface Eulerian | 2018-07-04 17:00:00 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052397 | Currents -subsurface Eulerian | 2018-07-04 17:00:00 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052570 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052582 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052594 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052601 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052613 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052625 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052637 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052649 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052650 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052662 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052674 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
Appendix 2: Extended Ellett Line Station IB4
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.
Series Identifier | Data Category | Start date/time | Start position | Cruise |
---|---|---|---|---|
1007936 | CTD or STD cast | 1997-09-12 10:45:00 | 58.5585 N, 16.17267 W | RRS Discovery D230 |
2131505 | Water sample data | 1997-09-12 11:23:30 | 58.55852 N, 16.17261 W | RRS Discovery D230 |
1304929 | Water sample data | 1997-09-12 11:24:00 | 58.55852 N, 16.17261 W | RRS Discovery D230 |
1020557 | CTD or STD cast | 1998-05-24 23:59:00 | 58.5005 N, 16.08733 W | RRS Discovery D233 |
1306198 | Water sample data | 1998-05-25 00:38:00 | 58.50042 N, 16.08728 W | RRS Discovery D233 |
1849352 | Water sample data | 1998-05-25 00:38:00 | 58.50042 N, 16.08728 W | RRS Discovery D233 |
1070867 | CTD or STD cast | 1999-09-14 16:21:00 | 58.55683 N, 16.16683 W | RRS Discovery D242 |
1252212 | Water sample data | 1999-09-14 16:39:00 | 58.55683 N, 16.16683 W | RRS Discovery D242 |
670502 | CTD or STD cast | 2001-05-08 01:02:00 | 58.51067 N, 16.0005 W | RRS Discovery D253 |
667291 | CTD or STD cast | 2004-07-16 00:10:00 | 58.5075 N, 15.9995 W | FS Poseidon PO314 |
776431 | CTD or STD cast | 2006-10-20 18:54:18 | 58.50933 N, 16.29667 W | RRS Discovery D312 |
847347 | CTD or STD cast | 2007-08-28 01:04:10 | 58.49695 N, 16.00621 W | RRS Discovery D321B |
954136 | CTD or STD cast | 2009-06-15 17:05:12 | 58.50052 N, 16.00057 W | RRS Discovery D340A |
1052615 | CTD or STD cast | 2010-05-18 04:26:56 | 58.49917 N, 15.978 W | RRS Discovery D351 |
1896639 | Water sample data | 2010-05-18 05:10:00 | 58.50004 N, 15.97696 W | RRS Discovery D351 |
1195628 | CTD or STD cast | 2011-05-29 09:01:46 | 58.49867 N, 15.9995 W | RRS Discovery D365 |
1204013 | CTD or STD cast | 2012-08-10 12:43:00 | 58.49978 N, 15.999 W | RRS Discovery D379 |
1220258 | CTD or STD cast | 2013-05-17 17:05:57 | 58.5 N, 16.0 W | RRS James Cook JC086 |
2098230 | Water sample data | 2013-05-17 17:46:30 | 58.50611 N, 16.2375 W | RRS James Cook JC086 |
2098696 | Water sample data | 2013-05-17 17:46:30 | 58.50611 N, 16.2375 W | RRS James Cook JC086 |
2099221 | Water sample data | 2013-05-17 17:46:30 | 58.50611 N, 16.2375 W | RRS James Cook JC086 |
2099792 | Water sample data | 2013-05-17 17:46:30 | 58.50611 N, 16.2375 W | RRS James Cook JC086 |
2100346 | Water sample data | 2013-05-17 17:46:30 | 58.50611 N, 16.2375 W | RRS James Cook JC086 |
2101337 | Water sample data | 2013-05-17 17:46:30 | 58.50611 N, 16.2375 W | RRS James Cook JC086 |
1370717 | CTD or STD cast | 2014-07-09 03:01:57 | 58.47 N, 16.0 W | RRS James Clark Ross JR20140531 (JR302) |
1723028 | CTD or STD cast | 2015-06-07 22:24:02 | 58.5007 N, 15.9996 W | RRS Discovery DY031 |
1722105 | Currents -subsurface Eulerian | 2015-06-07 22:24:36 | 58.50072 N, 15.9996 W | RRS Discovery DY031 |
2150066 | Water sample data | 2015-06-07 23:03:30 | 58.50072 N, 15.9996 W | RRS Discovery DY031 |
1878958 | Water sample data | 2015-06-07 23:04:00 | 58.50072 N, 15.9996 W | RRS Discovery DY031 |
1764403 | CTD or STD cast | 2016-06-14 20:42:15 | 58.4997 N, 16.0029 W | RRS Discovery DY052 |
1765547 | Currents -subsurface Eulerian | 2016-06-14 20:42:33 | 58.49968 N, 16.0029 W | RRS Discovery DY052 |
1874724 | Water sample data | 2016-06-14 21:17:00 | 58.49968 N, 16.0029 W | RRS Discovery DY052 |
2149250 | Water sample data | 2016-06-14 21:17:08 | 58.49968 N, 16.0029 W | RRS Discovery DY052 |
2052373 | Currents -subsurface Eulerian | 2018-07-04 17:00:00 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052385 | Currents -subsurface Eulerian | 2018-07-04 17:00:00 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052397 | Currents -subsurface Eulerian | 2018-07-04 17:00:00 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052570 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052582 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052594 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052601 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052613 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052625 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052637 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052649 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052650 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052662 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |
2052674 | Hydrography time series at depth | 2018-07-04 17:00:01 | 57.98983 N, 21.1462 W | RV Neil Armstrong AR30-04 (F2018-007, OSNAP East 2018) |