Metadata Report for BODC Series Reference Number 1641833


Metadata Summary

Data Description

Data Category Hydrography time series at depth
Instrument Type
NameCategories
Star-Oddi Starmon mini temperature recorder  water temperature sensor
Instrument Mounting -
Originating Country United Kingdom
Originator Dr Matt Palmer
Originating Organization National Oceanography Centre, Liverpool
Processing Status QC in progress
Project(s) Oceans 2025
Oceans 2025 Theme 10
Oceans 2025 Theme 10 SO11
 

Data Identifiers

Originator's Identifier TP02840.01103
BODC Series Reference 1641833
 

Time Co-ordinates(UT)

Start Time (yyyy-mm-dd hh:mm) 2010-07-08 08:10
End Time (yyyy-mm-dd hh:mm) 2010-09-29 08:30
Nominal Cycle Interval 600.0 seconds
 

Spatial Co-ordinates

Latitude 53.53783 N ( 53° 32.3' N )
Longitude 3.63667 W ( 3° 38.2' W )
Positional Uncertainty Unspecified
Minimum Sensor Depth 7.5 m
Maximum Sensor Depth 7.5 m
Minimum Sensor Height 30.6 m
Maximum Sensor Height 30.6 m
Sea Floor Depth 38.1 m
Sensor Distribution Fixed common depth - All sensors are grouped effectively at the same depth which is effectively fixed for the duration of the series
Sensor Depth Datum Instantaneous - Depth measured below water line or instantaneous water body surface
Sea Floor Depth Datum Instantaneous - Depth measured below water line or instantaneous water body surface
 

Parameters

No Parameters for BODC Reference Number = 1641833

 

Definition of Rank

  • Rank 1 is a one-dimensional parameter
  • Rank 2 is a two-dimensional parameter
  • Rank 0 is a one-dimensional parameter describing the second dimension of a two-dimensional parameter (e.g. bin depths for moored ADCP data)

Problem Reports

No Problem Report Found in the Database

Originator's quality control comments for PD21_10 COBS moorings

Data supplied to BODC were accompanied by data quality notes from the Originator that detailed observations made when the data were processed and subsequent processing decisions. A summary of these notes have been provided in the tables below.

Site A

Rig#1101

Instrument Serial number Instrument depth Data quality comments
Sea-Bird MicroCAT 05433 5 m A salinity offset of -0.01 was found when these data were compared with the other instruments present at this site. A salinity offset correction of +0.01 has been applied to these data.
Star-Oddi minilogger 02836 7.5 m A temperature offset of -0.06°C was found when these data were compared with the other instruments present at this site. An offset correction of +0.06°C has been applied to these data.
Sea-Bird MicroCAT 05790 10 m The temperature data recorded by this instrument were of good quality. CTD comparison checks found a conductivity offset with a minimum value of -0.0027 S m-1. An offset correction of +0.0027 S m-1 has been applied to these data.
Star-Oddi minilogger 02838 15 m CTD comparison checks found a temperature offset of -0.0350°C, which was changed to -0.0650°C after these data were compared with the other instruments present at this site. All temperature values have been adjusted by +0.0650°C.

Rig#1102


Instrument Serial number Instrument depth Data quality comments
Sea-Bird 16+ SEACAT fitted with Seapoint Turbidity Meter #10537 04596 Located on seabed Comparisons performed against other instruments found offsets of -0.01°C in temperature and +0.07 in salinity. CTD comparison checks found a good match between CTD conductivity and the conductivity recorded by this instrument mid-cruise, however offsets were observed at deployment and recovery. Pressure data were unrealisted and have been replaced using data from an alongside ADCP.
Teledyne RDI 600 kHz ADCP 12239 Located on seabed To correct for the magnetic declination (difference between magnetic north and true north) latitude values were changed by -3.1856°. All latitude values were modified by -14.5815° to correct for the compass error.

Site B

Rig#1103

Instrument Serial number Instrument depth Data quality comments
Sea-Bird MicroCAT 02506 5 m CTD comparison checks found small offsets of -0.0302°C at deployment, +0.0052°C mid-cruise and -0.0076°C at recovery were found in the temperature channel. No adjustments were made to the temperature data as the offsets had both positive and negative values. CTD comparison checks found offsets with minimum values of -0.0033 S m-1 at mooring deployment and -0.0104 S m-1 at mooring recovery. An offset correction of +0.0033 S m-1 has been applied to the conductivity channel.
Star-Oddi minilogger 02840 7.5 m CTD comparison checks found small offsets of -0.051°C at deployment, -0.044°C mid-cruise and -0.0620°C at mooring recovery. An offset correction of +0.044°C has been applied to the temperature data.
Sea-Bird MicroCAT 05791 10 m CTD comparison checks found temperature offsets of -0.0119°C at deployment, +0.0268°C mid-cruise and -0.0136°C at mooring recovery. The same checks found conductivity to be offset by -0.0058 S m-1 at deployment and -0.0118 S m-1 at recovery, but a really good match between CTD conductivity and the conductivity data recorded by this instrument mid-cruise. No adjustments have been made to either channel as the offsets were not consistent, however the Data Originator recommends that these data are used with caution. A salinity offset of -0.05 was found when these data were compared against the other instruments present at this site. An offset correction of +0.05 has been applied to this channel.
Star-Oddi minilogger 02848 15 m CTD comparison checks found a temperature offset of -0.017°C, which was changed to -0.047°C when these data were compared against other instruments present at this site. An offset correction of +0.047°C has been applied to these data.

Rig#1104


Instrument Serial number Instrument depth Data quality comments
Sea-Bird 16+ SEACAT fitted with Seapoint Turbidity Meter #10471 04737 Located on seabed CTD comparison checks found offsets of -0.0418°C in temperature and -0.0102 S m-1 in conductivity at mooring deployment and -0.0402°C in temperature and -0.0133 S m-1 in conductivity at mooring recovery. All temperature data have been adjusted by +0.0402°C and all conductivity values have been adjusted by -0.0102 S m-1 to compensate for these offsets.
Teledyne RDI 600 kHz ADCP 05807 Located on seabed To correct for the magnetic declination (difference between magnetic north and true north) latitude values were changed by -3.3106°C. All latitude values were modified by +2.2237°C to correct for the compass error.

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

Star-Oddi Starmon mini Temperature Recorder

Description

The Star-Oddi Starmon mini is a compact microprocessor-controlled temperature recorder with electronics and probe housed in a strong waterproof cylinder made of either plastic or titanium.

Specifications

Memory 350000 measurements, although memory size can optionally be increased to 524000 or 699000 measurements. Temperature readings are stored in non-volatile Electrically Erasable Programmable Read Only Memory (EEPROM).
Data Retention 20 years.
Temperature Range -2 °C to +40 °C with outside ranges available at request. The average resolution is 0.013 °C, and the measuring accuracy is +/-0.05 °C.
Maximum Depth Plastic version: 400 m (40 bar), titanium version: 11000 m (1100 bar)
Communication Link Downloaded via PC interface box. Connects to a computer via a RS-232C standard serial interface.
Battery A 3.6 V lithium battery with a life of 5 years for a sampling interval of 10 minutes or greater.

For more information please see the manufacturers specification sheet .

Coastal Observatory VEMCO and Star-Oddi Minilogger data processing

The following procedures were carried out before the data were supplied to BODC.

Data were downloaded from the instrument logger, and factory calibrations were applied to the temperature channel.

Basic quality control was then performed by the Data Originator. The first stage of quality checks involved comparing the data from each instrument with CTD measurements recorded during the deployment and recovery of the mooring. Following the comparison against CTD data secondary checks were performed by comparing the data from each instrument against the data from other sensors attached to that mooring. The Originator has provided BODC with a document containing a full description of the quality control methodology . Depending on the result of the quality checks for each series, one of the following actions was performed by the Originator:

A full description of the results of these quality checks can be found in the relevant Originator's data processing comments document.


Project Information

Oceans 2025 - The NERC Marine Centres' Strategic Research Programme 2007-2012

Who funds the programme?

The Natural Environment Research Council (NERC) funds the Oceans 2025 programme, which was originally planned in the context of NERC's 2002-2007 strategy and later realigned to NERC's subsequent strategy (Next Generation Science for Planet Earth; NERC 2007).

Who is involved in the programme?

The Oceans 2025 programme was designed by and is to be implemented through seven leading UK marine centres. The marine centres work together in coordination and are also supported by cooperation and input from government bodies, universities and other partners. The seven marine centres are:

Oceans2025 provides funding to three national marine facilities, which provide services to the wider UK marine community, in addition to the Oceans 2025 community. These facilities are:

The NERC-run Strategic Ocean Funding Initiative (SOFI) provides additional support to the programme by funding additional research projects and studentships that closely complement the Oceans 2025 programme, primarily through universities.

What is the programme about?

Oceans 2025 sets out to address some key challenges that face the UK as a result of a changing marine environment. The research funded through the programme sets out to increase understanding of the size, nature and impacts of these changes, with the aim to:

In order to address these aims there are nine science themes supported by the Oceans 2025 programme:

In the original programme proposal there was a theme on health and human impacts (Theme 7). The elements of this Theme have subsequently been included in Themes 3 and 9.

When is the programme active?

The programme started in April 2007 with funding for 5 years.

Brief summary of the programme fieldwork/data

Programme fieldwork and data collection are to be achieved through:

The data is to be fed into models for validation and future projections. Greater detail can be found in the Theme documents.


Oceans 2025 Theme 10

Oceans 2025 is a strategic marine science programme, bringing marine researchers together to increase people's knowledge of the marine environment so that they are better able to protect it for future generations.

Theme 10: Integration of Sustained Observations in the Marine Environment spans all marine domains from the sea-shore to the global ocean, providing data and knowledge on a wide range of ecosystem properties and processes (from ocean circulation to biodiversity) that are critical to understanding Earth system behaviour and identifying change. They have been developed not merely to provide long-term data sets, but to capture extreme or episodic events, and play a key role in the initialisation and validation of models. Many of these SOs will be integrated into the newly developing UK Marine Monitoring Strategy - evolving from the Defra reports Safeguarding our Seas (2002) and Charting Progress (2005), thus contributing to the underpinning knowledge for national marine stewardship. They will also contribute to the UK GOOS Strategic Plan (IACMST, 2006) and the Global Marine Assessment.

Weblink: http://www.oceans2025.org/


Oceans 2025 Theme 10, Sustained Observation Activity 11: Liverpool Bay and Irish Sea Coastal Observatory

Sustained, systematic observations of the ocean and continental shelf seas at appropriate time and space scales allied to numerical models are key to understanding and prediction. In shelf seas these observations address issues as fundamental as 'what is the capacity of shelf seas to absorb change?' encompassing the impacts of climate change, biological productivity and diversity, sustainable management, pollution and public health, safety at sea and extreme events. Advancing understanding of coastal processes to use and manage these resources better is challenging; important controlling processes occur over a broad range of spatial and temporal scales which cannot be simultaneously studied solely with satellite or ship-based platforms.

Considerable effort has been spent by the Proudman Oceangraphic Laboratory (POL) in the years 2001 - 2006 in setting up an integrated observational and now-cast modelling system in Liverpool Bay (see Figure), with the recent POL review stating the observatory was seen as a leader in its field and a unique 'selling' point of the laboratory. Cost benefit analysis (IACMST, 2004) shows that benefits really start to accrue after 10 years. In 2007 - 2012 exploitation of (i) the time series being acquired, (ii) the model-data synthesis and (iii) the increasingly available quantities of real-time data (e.g. river flows) can be carried out through Sustained Observation Activity (SO) 11, to provide an integrated assessment and short term forecasts of the coastal ocean state.

BODC image

Overall Aims and Purpose of SO 11

Measurement and Modelling Activities

More detailed information on this Work Package is available at pages 32 - 35 of the official Oceans 2025 Theme 10 document: Oceans 2025 Theme 10

Weblink: http://www.oceans2025.org/

References:

IACMST., 2004. The Economics of Sustained Marine Measurements. IACMST Information Document, N0.11, Southampton: IACMST, 96 pp


Data Activity or Cruise Information

Data Activity

Start Date (yyyy-mm-dd) 2010-07-08
End Date (yyyy-mm-dd) 2010-09-29
Organization Undertaking ActivityNational Oceanography Centre, Liverpool
Country of OrganizationUnited Kingdom
Originator's Data Activity IdentifierLB2_040 / POLRIG1103
Platform Categorymoored surface buoy

COBs Site B SmartBuoy deployment LB2_040/1103

Deployment and recovery

This mooring was deployed in a collaboration between Cefas and the POL Liverpool Bay Coastal Observatory. The rig was deployed in July 2010 during RV Prince Madog cruise PD21/10. The rig was recovered in September 2010 during RV Prince Madog cruisePD36/10.

Rig Description

The SmartBuoy carried a suite of Cefas instruments mounted just below the surface, as well as instrumentation belonging to POL upto 15 m deep. Further information is given in the table below.

The single point mooring was composed mainly of 0.5 inch long link chain, marked by a 1.8 m diameter toroid and anchored by a half tonne clump of scrap chain.

The following instruments were connected to a Eco System Monitor;

Instrument Serial
Number
Meter
depth (m)
Record
Length (days)
Owner
MiniTracka Chlorophyll Fluorometer 175066 1 23 Cefas
Aanderaa Conductivity Sensor - Type 3919B IW 943 1 83 Cefas
Druck 5 bar Pressure Transducer 2418433 1 85 Cefas
Seapoint Turbidity Meter 11742 1 22 Cefas

The following instruments were stand alone sensors;

Instrument Serial
Number
Meter
depth (m)
Record
Length (days)
Owner
Sea-Bird 37 MicroCAT 2506 5 85 NOC
Sea-Bird 37 MicroCAT 5791 10 85 NOC
Minilogger 2840 7.5 85 NOC
Minilogger 2848 15 85 NOC

Other Series linked to this Data Activity - 1076642 1641845 1641741 1075602 1641777 1075731

Cruise

Cruise Name PD21/10
Departure Date 2010-07-07
Arrival Date 2010-07-08
Principal Scientist(s)Phil J Knight (National Oceanography Centre, Liverpool)
Ship RV Prince Madog

Complete Cruise Metadata Report is available here


Fixed Station Information

Fixed Station Information

Station NameCoastal Observatory Site 20
CategoryOffshore area
Latitude53° 32.13' N
Longitude3° 38.39' W
Water depth below MSL32.5 m

Liverpool Bay Coastal Observatory Site 20

This station is one of 34 stations regularly visited by the Proudman Oceanographic Laboratory (POL) as part of the Liverpool Bay Coastal Observatory. During each site visit CTD profiles are collected and since March 2010 (when this became the secondary mooring site for the Coastal Observatory (also known as Site B)) moorings are deployed. The station lies within a box of mean water depth 32.5 m with the following co-ordinates:

Box Corner Latitude Longitude
North-west corner 53.54052° -3.65075°
South-east corner 53.53041° -3.62923°

The position of this station relative to the other POL Coastal Observatory sites can be seen from the figure below.

BODC image

CTD Sampling History

Year Number of Visits Total Casts per year
2011 5 11
2010 8 22
2009 6 6
2008 7 7
2007 7 7
2006 7 8
2005 7 7
2004 8 8
2003 9 9
2002 2 2

The CTD instrument package for these cruises was a Sea-Bird 911plus, with beam transmissometer, fluorometer, LICOR PAR sensor, LISST-25, and oxygen sensor.

Other Series linked to this Fixed Station for this cruise - 1075602 1075731 1090893 1090997 1091000 1624043 1641741 1641777 1641790 1641845

Other Cruises linked to this Fixed Station (with the number of series) - PD01/08 (1) PD01/11 (10) PD02/07 (1) PD02/09B (1) PD02/10 (11) PD05/10 (11) PD06/07 (1) PD07/08 (1) PD07/11 (10) PD09/07 (1) PD09/08 (1) PD10/10 (9) PD11/11 (2) PD12/09 (1) PD13/07 (1) PD14/08 (1) PD16/07 (1) PD17/10 (6) PD18/09 (1) PD19/08 (1) PD20/07 (1) PD23/07 (1) PD23/08 (1) PD24/09 (1) PD29/10 (5) PD33/09 (1) PD35/06 (1) PD36/10 (12) PD37/08 (1) PD38/09 (1) PD43/11 (1) PD49/10 (11)


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