Metadata Report for BODC Series Reference Number 2048860

• 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

Data Quality Report of PAP1 Mooring Pro-Oceanus CO2-Pro and Pro-Oceanus CO2-Pro Atmospheric data: DY116

The CO2-Pro 34-200-45 sensor failed to record on the following dates:

From the 23^rd of January 2021 at 13:58 the instrument started recording the 10 measurements every hour (instead of every 6 hours) until it finally stopped recording altogether at 18:58.

The CO2-Pro Atmospheric 35-599-50A sensor recorded two samples, at different times, within the same second on two occasions:

The time channel has been flagged for each duplicate time stamp, however the time is not wrong just inaccurate as the time channel does not have millisecond precision.

The instrument also stopped recording on the 8^th of January 2021, 3 months before recovery.

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

Pro Oceanus CO₂-Pro Submersible pCO₂ Sensor

An in-situ dissolved gas sensor measuring the partial pressure of CO₂ (pCO₂) gas dissolved in water using infrared detection. An internal zeroing feature provides a stable long-term baseline for ensuring accurate and stable measurements. The CO₂-Pro can also be modified to measure both water and air pCO₂. Standard ranges from 0-600 ppm to 0-2000 ppm.

Full specifications can be found in the sensor data sheet.

Processing by BODC of PAP1 Mooring Pro-Oceanus CO2-Pro and Pro-Oceanus CO2-Pro Atmospheric data: DY116

The PAP1 mooring was deployed on 21^st November 2020 on the RRS Discovery cruise DY116 and was recovered on the RRS Discovery Cruise DY130 on 1^st of April 2021. The measurements made by the two Pro-Oceanus instruments were supplied to BODC in .csv (ASCII) files. 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 DY116 cruise report.

The originator 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.

Processing by Originator of PAP1 Mooring Pro-Oceanus CO2-Pro and Pro-Oceanus CO2-Pro Atmospheric data: DY116

The following information was taken from the DY116 and DY130 cruise reports and originator's files. For more detailed information please refer to the DY116 and DY130 cruise reports.

The CO2-Pro Atmospheric 39-599-50A sensor was configured to take 10 measurements at each of the following times: 5:27:00, 11:27:00, 17:27:00, and 23:27:00. This instrument alternates between measuring the partial pressure of CO₂ in surface water and in air in order to accurately determine the CO₂ flux. Due to unknown circumstances this sensor stopped recording on the 8^th of January 2021.

The CO2-Pro 34-200-45 sensor was configured to take 10 measurements at each of the following times: 02:58:00, 08:58:00, 14:58:00, and 20:58:00. Due to unknown circumstances this sensor stopped recording on the 23^rd of January 2021.

The instruments were set to power up 20 minutes before taking measurements in order to make sure the sensors had warmed up before sampling. The sensors only received energy from the telemetry unit.

The instruments have been calibrated by the manufacturer but the data have not been corrected using bottle samples.

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_112020

This rig was deployed as part of the Porcupine Abyssal Plain (PAP) observatory project. 'PAP1_112020' refers to the deployment of mooring number 1 in November 2020 ('112020') located at the PAP Observatory.

Data summary

Instrumentation

The Discovery Cruise DY116 deployed for the first time a Mobilis buoy. The new Mobilis buoy was deployed without a sensor frame. All instruments, except Star Oddi sensors, were deployed attached directly to the buoy. Using cable ties and gaffer tape, Star Oddi sensors were attached at various depths to the rope leading to the anchor. Further details on pages 27, 28, and 56-60 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_112020

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.