Metadata Report for BODC Series Reference Number 2207659

• 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

PAP1 Mooring Satlantic OCR-507 ICSA Radiometer(4m in air on buoy): JC247 Data Quality Report

The Satlantic OCR-507 Radiometer measures irradiance in air on the PAP1 buoy. Cruise JC247 redeployed the mooring in 2023 after checking and servicing all sensors. The OCR was set to sample on 1Hz, for 2 minutes every 30 minutes, and it recorded energy of electromagnetic radiation in wavelegths of 412.5,443.9,510.8,554.2,670,682.4 µW/cm²/nm. All but one wavelength channel (parameter RXSD510E) recorded negative values at the start and end of some or each cycle, especially parameters RXSD412E, RXSD443E, RXSD670E. Consequently 27% of data has been flagged using 'M' for "Improbable value" according to the BODC flagging system. Radiometer measurements can be affected by the sun zenith, by the sensor frame angle and by cloud coverage causing variability in scattering of some wavelengths. The buoy got detached from its anchor and drifted away on August 31st.The converted data were checked using BODC software EDSERPLO.

All data were recorded by the same instrument.

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

BODC Processing of PAP1 moored Satlantic OCR-507 ICSA cruise JC247

Downwelling vector irradiance as energy of electromagnetic radiation in the atmosphere collected by cosine-collector radiometer and supplied to BODC in a single .csv file. The dataset was converted to the internal BODC NetCDF format using standard processing procedures. The variables provided by the orginator were mapped to BODC parameter codes as follows:

The converted data were checked using BODC software EDSERPLO. Any suspect data were flagged using the BODC quality control flags.

Satlantic OCR 500 series Multispectral Radiometer

The OCR-507 Multispectral Radiometer is a member of Satlantic's line of micro-sensor instruments. The OCR-507 is a complete stand-alone, fully digital optical sensor package capable of generating spectral records of light collected in an ocean environment. The instrument comprises data logging and processing software and is available in two configurations, radiance and irradiance for in-water and in-air applications. The instrument can also be configured as a coupled irradiance and radiance radiometer. Up to seven customer defined discrete optical wavelengths can be utilized with the OCR-507, including standard wavelengths of 400 to 865 nm, or UV wavelengths of 305, 325, 340 and 380 nm.

Two standard, non-isolated, telemetry (data) interfaces are provided with the instrument, each using a different transmission medium. The RS-232 interface provides transmit and receive capabilities whilst the RS-422 interface is for transmittance only. A non-isolated RS-485 interface is also provided for operating the instrument if used in a SatNet networked environment as part of a larger system.

The OCR-507 combines a fully characterized cosine response with custom low fluorescence filters and a sampling rate of 7 to 24 Hz. The instrument is also compatible with Bioshutter anti-biofouling solution.

Specifications for Downwelling Irradiance Configuration

Specifications for Upwelling Radiance Configuration

Further details can be found in the manufacturer's specification sheet.

Processing by originator of PAP1 Satlantic OCR-507 ICSA deployed on cruise JC247

Sampling strategy

A Satlantic OCR-507 ICSA (S/N: 226) was mounted on top of the buoy mast at 4 metres to record atmospheric downwelling irradiance. The sensor was controlled by a telemetry unit, and was set to sample at 1 Hz for 2 minutes every 30 minutes.

The mooring was deployed at 49.027833°N,-16.330167°W on 12 May 2023 during RRS James Cook JC247 cruise and broke free on 31 August 2023 and it is assumed that data after that date is no longer at the PAP-SO site due to drift.

Data Acquisition and Initial Processing

Data were acquired from the sensor via the telemetry hub, therefore data are near real time (NRT). No calibrations nor corrections were applied to correct for any drift.

JC247 Cruise report

Further information can be found in the JC247 Cruise report.

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_052023

This rig was deployed as part of the Porcupine Abyssal Plain (PAP) observatory project. 'PAP1_052023' refers to the deployment of mooring number 1 in May 2023 ('052023'), located at the PAP Observatory. Further details of the deployment can be found in the JC247 cruise report.

Data summary

Instrumentation

The PAP1 mooring deployed on JC247 went adrift on 31^st August 2023. The buoy drifted generally south during this period and was recovered 370 km from its anchor (45° 40' 37" N 14° 19' 36" E). The sensor frame under the buoy (at 30m) was shackled to a steel cross bar. Upon recovery this bar was missing, along with everything beneath it. It is thought that one side of the cross bar broke free approximately 10 days before it became fully detached. Nothing below the keel of the buoy was recovered.

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_052023

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.