Metadata Report for BODC Series Reference Number 2206668

• 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

190 cycles were recovered in total and data were considered suspect from deployment by the originator. Upon recovery, two Subcon locking sleeves were loose. The originator's quality control flag 'L' has therefore been applied to all values in each data channel by BODC.

XCO2WTWB

100% of 190 cycles have been flagged 'L' by BODC as they were considered suspect by the originator.

PCO2XXXX

100% of 190 cycles have been flagged 'L' by BODC as they were considered suspect by the originator.

GASTMP01

100% of 190 cycles have been flagged 'L' by BODC as they were considered suspect by the originator.

GASPH2O1

100% of 190 cycles have been flagged 'L' by BODC as they were considered suspect by the originator.

GASPRES1

100% of 190 cycles have been flagged 'L' by BODC as they were considered suspect by the originator.

All parameters were recorded by the same instrument: Pro Oceanus CO2-Pro CV (submersible) pCO2 sensor.

PAP1 Mooring Pro-Oceanus CO2-Pro CV (30 m): JC231 Data Quality Report

After deployment on the 7^th of May 2022, data was recorded until 16:00 on the 13^th of May 2022. No data were supplied after this due to high current. 190 cycles were recovered in total and data were considered suspect from deployment by the originator. Upon recovery, two Subcon locking sleeves were loose. The originator's quality control flag 'L' has therefore been applied to all values in each data channel by BODC (XCO2WTWB, PCO2XXXX, GASTMP01, GASPH2O1 and GASPH2O1).

All parameters were recorded by the same instrument: Pro Oceanus CO2-Pro CV (submersible) pCO2 sensor.

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

Pro Oceanus CO2-Pro CV (submersible) pCO2 sensor

An in-situ dissolved gas sensor measuring the partial pressure of CO2 (pCO2) gas dissolved in water using infrared detection. It is designed for deep water applications. The CV notation denotes this is a compact version of the standard Pro-CO2 sensor. An internal zeroing feature provides a stable long-term baseline for ensuring accurate and stable measurements. A flow-through adapter is available. Standard range: 0-600 ppm to 0-10000 ppm. Accuracy: +/-0.5%. Resolution: 0.01 ppm. Depth: 6000 m.

For more information, please see this document: https://www.bodc.ac.uk/data/documents/nodb/pdf/ProOceanusPSIInstrumentSheets2021CO2ProCV.pdf

PAP1 Mooring Pro-Oceanus CO2-Pro CV (30 m): JC231 BODC Data Processing

The PAP1 mooring was deployed on 07/05/2022 by the RRS James Cook JC231 and recovered by the RRS James Cook cruise JC247 on 11/05/2023 at the Porcupine Abyssal Plain - Sustained Observatory (PAP-SO) site in the North East Atlantic ocean. The Pro-Oceanus CO2-Pro CV (Compact Version, SN 38-492-75) was located on the PAP1 mooring frame at 30 m. A burst of 10 samples was recorded every 480 minutes (8 hours) by the sensor. Please note that the originator confirmed there is an error in the JC231 cruise report where the sample interval is written as 'every 480 minutes (6 hours)' instead of every '480 minutes (8 hours)'.

The data were obtained directly from the sensor with no post-recovery corrections and supplied to BODC in .csv format. The data were then loaded into BODC's database using established BODC data banking procedures. For more information on the deployment of these instruments please see the JC231 cruise report.

The originator's variables were mapped to appropriate BODC parameter codes as follows:

The reformatted data were visualised using in-house EDSERPLO software. Any suspect data were flagged using the BODC quality control flags.

PAP1 Mooring Pro-Oceanus CO2-Pro CV (30 m): JC231 Originator Data Processing

The mooring was deployed on RRS James Cook JC231 (07/05/2022) and recovered by the RRS James Cook JC247 (11/05/2023) at the Porcupine Abyssal Plain - Sustained Observatory (PAP-SO) site in the North East Atlantic ocean.

The Pro-Oceanus CO2-Pro CV (Compact Version, SN 38-492-75) was located on the PAP1 mooring frame at 30 m. This was externally powered and had an additional power backup with a SubCTech battery ('Big Jim XL'). A copper cap was connected to the in-take of the pump to reduce bio-fouling. A burst of 10 samples was recorded every 480 minutes (8 hours) by the sensor. Please note that the originator confirmed there is an error in the JC231 cruise report where the sample interval is written as 'every 480 minutes (6 hours)' instead of every '480 minutes (8 hours)'.

The data were obtained directly from the sensor with no post-recovery corrections.

Please see the JC231 cruise report and JC247 cruise report for further detail of originators processing.

Project Information

Marine LTSS: CLASS (Climate Linked Atlantic Sector Science)

Introduction

CLASS is a five year (2018 to 2023) programme, funded by the Natural Environment Research Council (NERC) and extended until March 2024.

Scientific Rationale

The ocean plays a vital role in sustaining life on planet Earth, providing us with both living resources and climate regulation. The trajectory of anthropogenically driven climate change will be substantially controlled by the ocean due to its absorption of excess heat and carbon from the atmosphere, with consequent impacts on ocean resources that remain poorly understood. In an era of rapid planetary change, expanding global population and intense resource exploitation, it is vital that there are internationally coordinated ocean observing and prediction systems so policy makers can make sound evidence-based decisions about how to manage our interaction with the ocean. CLASS will underpin the UK contribution to these systems, documenting and understanding change in the marine environment, evaluating the impact of climate change and effectiveness of conservation measures and predicting the future evolution of marine environments. Over the five-year period CLASS will enhance the cost-effectiveness of observing systems by migrating them towards cutting edge autonomous technologies and developing new sensors. Finally, CLASS will create effective engagement activities ensuring academic partners have transparent access to NERC marine science capability through graduate training partnerships and access to shipborne, lab based and autonomous facilities, and modelling capabilities.

Data Activity or Cruise Information

Data Activity

Moored Instrument Rig PAP1_052022

This rig was deployed as part of the Porcupine Abyssal Plain (PAP) observatory project. 'PAP1_052022' refers to the deployment of mooring number 1 in May 2022 ('052022') located at the PAP Observatory.

Data summary

Instrumentation

The James Cook cruise JC231 deployed a refurbished Mobilis buoy fitted with a new skirt to the same design as on the buoy that was recovered during this cruise. The buoy and a sensor frame at 30m were attached to the anchor and mooring rope that were deployed on 21st November 2020. Further details on pages 27, 28, and 85 - 100 of the deployment cruise report.

Instruments on the buoy are listed below:

Related Data Activity activities are detailed in Appendix 1

Cruise

Complete Cruise Metadata Report is available here

Fixed Station Information

Fixed Station Information

Porcupine Abyssal Plain (PAP) Observatory

The Porcupine Abyssal Plain (PAP) observatory is a site at which moorings were deployed in the Northeastern Atlantic, as part of the ANIMATE (Atlantic Network of Interdisciplinary Moorings and Time-series for Europe), MERSEA (Marine Environment and Security for the European Area), EuroSITES, Oceans2025, Fix03 and CLASS projects. The PAP site is centred at latitude 49° N and longitude 16.5° W. Moorings have occupied this region since 2002 and are typically deployed for 12 months.

Please note: Near Real Time data is only stored at BODC where delayed mode data were not recovered. All near real time data can be found at the OceanSites GDA and through IFREMER.

Data summary

Status Indicators

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: PAP1_052022

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: Porcupine Abyssal Plain (PAP)

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.