Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Marine and Freshwater Research Institute MFRI https://www.hafogvatn.is/ https://ror.org/02c8sqt04 Pampoulie Christophe christophe.s.pampoulie@hafogvatn.is 0000-0001-6425-9060 Marine and Freshwater Research Institute MFRI https://www.hafogvatn.is/ https://ror.org/02c8sqt04 2025 Acoustic data from IESSNS north, northeast, south and west of Iceland in July 2021 dataset https://doi.org/10.1594/PANGAEA.975782 2025-09-01T07:35:21 This data set has acoustic data during the Icelandic part of the International Ecosystem Summer Survey in Nordic Seas (IESSNS) July 5-26, 2021. The survey area was the shelf, shelf edge and deeper waters north, northeast, south and west of Iceland. The acoustic data was collected using a Simrad EK80 scientific echo sounder transducer with five transceiver units operating at different frequencies which are 18 kHz, 38 kHz, 70, kHz, 120 kHz and 200 kHz. Sampling depth is measured from transceiver surface which is located at 9 m depth in the water column. Maximum sampling depth was 500 m. The echo sounder was calibrated prior to survey as per manufacturer's instructions and a calibration file is included with submission, called calibration_2021.xml. Raw power (W), number of transducer segments and transceiver impedance (Ohm) were recorded. Information about the trawl catches and biological measurement of catch collected during the survey is in data set Ólafsdóttir and Pampoulie (2022, doi:10.1594/PANGAEA.942987). For detailed information about the survey see the survey report (Ólafsdóttir et al., 2022). Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Finnbogadóttir Gudrún Kennedy James james.kennedy@hafogvatn.is Sigurgeirsdóttir Sólrún Aradóttir Svandís Eva svandis.eva.aradottir@hafogvatn.is 2022 Results of the Icelandic part of the International Ecosystem Summer Survey in Nordic Seas (IESSNS) in July 2021 on R/V Árni Friðriksson report Marine and Freshwater Research Institute, Iceland 40 pp. https://download.pangaea.de/reference/112493/attachments/IESSNS_IS_2021.pdf Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Pampoulie Christophe christophe.s.pampoulie@hafogvatn.is 0000-0001-6425-9060 2022 Fish and invertebrate trawl sampling south and west of Iceland in July 2021 dataset https://doi.org/10.1594/PANGAEA.942987 Proud Roland rp43@st-andrews.ac.uk 0000-0002-8647-5562 Cuparanalytics 2024 rolandproud/echoutilities: Initial release software Zenodo https://doi.org/10.5281/ZENODO.13377783 -31.003440000000012 -6.53991000000002 62.69677 69.29894 -19.692072672098277 66.11328324685161 2021-07-05T15:14:00 2021-07-26T12:47:00 246.475735 251.500995 time slice SUMMER Sustainable Management of Mesopelagic Resources Horizon 2020 of the European Commission H2020 https://research-and-innovation.ec.europa.eu/funding/funding-opportunities/funding-programmes-and-open-calls/horizon-2020_en https://doi.org/10.13039/501100007601 817806 Sustainable management of mesopelagic resources https://doi.org/10.3030/817806 A12-2021_Underway-1 64.08762 -22.19978 2021-07-05T15:14:00 64.12019 -22.3404 2021-07-26T12:56:00 IESSNS_2021 IESSNS_2021 A12-2021 A12-2021 2021-07-05T00:00:00 2021-07-05 2021-07-26T00:00:00 2021-07-26 Arni Fridriksson TFNA 9192404 Ólafsdóttir, Anna H Ólafsdóttir, Anna H Arni Fridriksson TFNA 9192404 Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ 232342 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Event DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 start Date/Time Date/time end Date/time end http://en.wikipedia.org/wiki/ISO_8601 Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Date/time end LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Latitude Latitude 2 Latitude 2 Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Latitude 2 LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Longitude Longitude 2 Longitude 2 Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Longitude 2 Depth, water, top/minimum Depth water top m depth http://purl.obolibrary.org/obo/PATO_0001595 water http://purl.obolibrary.org/obo/CHEBI_15377 minimum Length L http://dbpedia.org/resource/Length Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 sampling depth of acoustic beam Depth water top [m] Depth, water, bottom/maximum Depth water bot m depth http://purl.obolibrary.org/obo/PATO_0001595 water http://purl.obolibrary.org/obo/CHEBI_15377 maximum Length L http://dbpedia.org/resource/Length Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 sampling depth of acoustic beam Depth water bot [m] DEPTH, water Depth water m depth http://purl.obolibrary.org/obo/PATO_0001595 water http://purl.obolibrary.org/obo/CHEBI_15377 Length L http://dbpedia.org/resource/Length Calculated average/mean values Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 sampling depth of acoustic beam Depth water [m] Identification ID Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 channel ID Data acquisition software (recording raw data) DAS Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 DAS Frequency Frequency kHz Frequency http://dbpedia.org/resource/Frequency Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Frequency [kHz] Number of pings Pings number Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Pings Beamwidth, alongship BWAL deg Angle http://dbpedia.org/resource/Angle Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 BWAL [deg] Beamwidth, athwartship BWAT deg Angle http://dbpedia.org/resource/Angle Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 BWAT [deg] Gain, transducer GT dB re 1 Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 GT [dB re 1] Simrad correction factor SCF dB re 1/m Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 SCF [dB re 1/m] Ping interval Ping int s Time T http://dbpedia.org/resource/Time Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Ping int [s] Pulse duration, transmitted PDT ms Time T http://dbpedia.org/resource/Time Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 PDT [ms] Power, transmitted Power tm W Power http://dbpedia.org/resource/Power Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Power tm [W] Sound velocity in water SV m/s https://en.wikipedia.org/wiki/Speed_of_sound water http://purl.obolibrary.org/obo/CHEBI_15377 Linear Velocity http://dbpedia.org/resource/Velocity sound http://purl.obolibrary.org/obo/ENVO_00000393 Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 SV [m/s] Sound absorption SA dB/m Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 SA [dB/m] Calibration Calibration Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Calibration Echogram, raw format Echo raw Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Echo raw Echogram, raw format (File Size) Echo raw (Size) Bytes Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Echo raw (Size) [Bytes] Echogram, raw format (MD5 Hash) Echo raw (Hash) Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Echo raw (Hash) Echosounder index file Echo idx Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Echo idx Echosounder index file (File Size) Echo idx (Size) Bytes Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Echo idx (Size) [Bytes] Echosounder index file (MD5 Hash) Echo idx (Hash) Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Echo idx (Hash) Calibration file, xml format Calibration xml Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Calibration xml Calibration file, xml format (File Size) Calibration xml (Size) Bytes Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Calibration xml (Size) [Bytes] Calibration file, xml format (MD5 Hash) Calibration xml (Hash) Echosounder, Simrad EK80 (Kongsberg Maritime AS) Hydroacoustic devices Simrad EK80 echo sounder http://vocab.nerc.ac.uk/collection/L22/current/TOOL1205/ Ólafsdóttir Anna H anna.olafsdottir@hafogvatn.is 0000-0001-5048-2659 Calibration xml (Hash) CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels ProcLevel1 PANGAEA data processing level 1 https://wiki.pangaea.de/wiki/Processing_levels#PANGAEA_data_processing_level_1 citable acoustic data IESSNS July 2021 Northeast Atlantic author111541 author75194 author75198 author77155 author88248 author88249 author88250 author88251 award264 basis148 campaign3374707 campaign48246 curlevel30 event3220460 funder20475 geocode1599 geocode1600 geocode1601 geocode1619 geocode500000 inst20984 license21 method13932 method223 param128536 param150986 param190653 param20716 param20717 param505281 param505282 param505283 param518753 param518754 param534995 param535016 param535017 param535018 param535019 param535020 param535021 param535035 param535212 param536029 param7056 param88337 pi75198 proclevel20 project4421 ref112493 ref134026 refds942987 term1073131 term1074931 term2300709 term2606205 term2663481 term38492 term41019 term43765 term43838 term43863 term43876 term43920 term43975 term48148 term48919 term53445 term68035 term70475 topotype9