Details of Galway Bay Cable Observatory - WQM time-series


Dataset identification

Title of datasetGalway Bay Cable Observatory - WQM time-series
Narrative summary of datasetThe Galway Bay Subsea observatory was installed in 2015 on the seafloor in the Galway Bay Marine and Renewable Energy Test Site, which is an area 1.5km off Spiddal pier and is used primarily to test small-scale ocean energy devices. The observatory uses cameras, probes and sensors to permit continuous and remote live underwater monitoring. This observatory equipment will allow ocean energy developers to monitor how their devices are performing in the ocean as well as give ocean researchers unique real-time access to monitor ongoing changes in the marine environment. Data relating to the marine environment at the site are now being transferred in real-time from the Galway Bay Observatory to the Marine Institute headquarters and onwards onto the internet. This data set includes estimates of the chlorophyll and turbidity levels in the water which give an indication of the volume of phytoplankton and other particles, such as sediment, in the water. The data platform for the Galway Bay Observatory has been built using Big Data technology, so that when new instruments are plugged into the cable system it is straightforward to include the new data streams into the system. The real-time underwater video footage and all the data from the various sensors and instruments is continuously refreshed and displayed online. The web-viewer can be accessed using the Google Chrome web browser at: This submission contains 1 months daily files from February 2018. The full data are available from the weblink provided.
Summary of processing methodologyData are streamed from sensors on the observatory to a shore station. The data at the shore station are synchronised with servers at the Marine Institute and the data are transferred into a NoSQL database. These data are made available in daily and monthly zipped packages at: One month's data has been attached to this submission given the data volumes. Earlier months are available for ingestion from the weblink provided above.
Project/programmeGalway Bay Cable Observatory
Start date2015-09-01
End date2018-03-01

Responsible organisations

Organisation nameMarine Institute
Role of organisationOriginator of Dataset

Dataset availability

Original dataset download link
Date of original dataset publication2018-05-17
Dataset formatText or Plaintext
Public accessNo limitations
License for useCC-BY 4.0
Link to dataset after processing by data centre{37D25BBF-4E2C-4548-A20C-262BDF90269A}


Latitude north boundary53.22733
Longitude east boundary-9.26629
Latitude south boundary53.22733
Longitude west boundary-9.26629
Coordinate reference systemWorld Geodetic System 84
Sea areaNortheast Atlantic Ocean (40W)
Vertical extent minimum20 Metres
Vertical extent maximum20 Metres

Data types, collection and processing

Observation typePigments
Optical properties
ParameterChlorophyll pigment concentrations in water bodies
Optical backscatter
Instrument typefluorometers
Instrument nameWETLabs ECO-FLNTU combined fluorometer and turbidity sensor
Platform typefixed benthic node
Platform nameGalway Bay Cable Observatory
Data quality processing informationData are streamed from the observatory and there is no QC as part of the current automated processing.

Process information

Submitting organisationMarine Institute
Submission identifier (UUID)3ca2f13e-7e64-4fe3-8195-0419672b6fb1
Date of dataset creation2018-03-01
Date of dataset revision2018-03-01
Date of metadata creation2018-05-03
Date of metadata latest revision2018-05-14
Date of publishing2018-05-17
Date of processed dataset publication2018-05-17
Processing data centreMarine Institute
Summary record-ID153