Details of Raw EK60 echosounder data: Swart seamount, British Indian Ocean Territory 2015

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Dataset identification

Title of datasetRaw EK60 echosounder data: Swart seamount, British Indian Ocean Territory 2015
Narrative summary of datasetThese data consist of raw uncalibrated 38 and 120 kHz echosounder observations collected during a pelagic survey of the Chagos archipelago MPA (January 2015). Observations were collected from a pole-mounted system (transducers were fixed at a depth of 3m). Data include several transects recorded during the 19th January at the Swart seamount site (close to Diego Garcia). A calibration was conducted prior to the survey. Resultant transducer peak gain (G0) and Simrad correction factor (Sa) values were as follows: 38 kHz (power = 1000 W; pulse duration = 1.024 ms; G0 = 20.97 dB; Sa = -0.62 dB) and 120 kHz (power = 250 W; pulse duration = 1.024 ms; G0 = 24.5 dB; Sa = -0.29 dB).
Summary of processing methodologyNA (raw data)
Project/programmeTowards the Sustainable Development of the Atlantic Ocean: Mapping and Assessing the present and future status of Atlantic marine ecosystems under multiple stre
Start date2015-01-19
End date2015-01-19

Responsible organisations

CountryUnited Kingdom
Organisation nameUniversity of St Andrews, School of Biology
Role of organisationOriginator of Dataset

Dataset availability

Original dataset download linkhttps://cloud.emodnet-ingestion.eu/index.php/s/157T7jowxDBKTPj
Dataset formatEx60 raw data files (.raw, .out, .bot)
Public accessNo limitations
License for useCC-BY 4.0
TypeDataset
Link to dataset after processing by data centre https://doi.org/10.14284/425
https://www.emodnet-biology.eu/data-catalog?module=dataset&dasid=6573
Date of processed dataset publication2020-11-06

Locations

Map
Latitude north boundary-4.83467763034
Longitude east boundary73.486738081097
Latitude south boundary-7.9959838517927
Longitude west boundary70.498457501649
Sea areaIndian Ocean

Data types, collection and processing

Observation typeBiota abundance, biomass and diversity
Acoustics
Sonar and seismics
ParameterAcoustic backscatter in the water column
Instrument typeFish-finder echosounders
Instrument nameSimrad EK-60 echosounder
Platform typesurface vessel
Platform nameM/V Pacific Marlin

Process information

Submitting organisationUniversity of St Andrews, School of Biology
Submission identifier (UUID)e7d49869-8774-4251-9fd0-87b88359a218
Date of dataset creation2015-01-19
Date of dataset revision2020-10-12
Date of metadata creation2020-10-05
Date of metadata latest revision2020-10-12
Date of publishing2020-10-13
Processing data centreFlanders Marine Institute
Summary record-ID691