XTCD and XBT data collected during the 2024 HiAOOS deployment cruise with KV Svalbard, in the Nansen and Amundsen Basins. Part of the data was taken to extend the section along 30E carried out by the Norwegian Polar Institute from R/V Kronprins Haakon.

CTD data collected in Bjørnafjorden and Langenuen, Norway, during a cruise with KV Tor.

CTD data collected in Bjørnafjorden and Langenuen, Norway, during a cruise with KV Tor.

Oceanographic data (temperature, conductivity, pressure, currents) measured by instruments in a mooring placed next to a seafood farm in Stokksundet, Norway. The instruments collected data from 17 March to 28 April 2022 as part of a Master study. The data is presented in Røsvik (2022). Røsvik, Bjørnar Hallaråker, 2022. Multidisciplinary Moorings in the Arctic and Coastal Areas. Master Thesis. The University of Bergen. Available at: https://hdl.handle.net/11250/3001633 (Accessed: 22 September 2022).

This dataset is based on acoustic recordings from five moorings deployed during the UNDER-ICE experiment in the Fram Strait. The UI1 mooring carried 8 hydrophones: HM501 (467m), HM502 (476m), HM504 (494m), HM505 (503m), HM506 (512m), HM507 (521m), HM509 (530m), HM310 (539m). A total of 8188 recordings were obtained from each hydrophone every 3 hours from Sep 2014 - Jan 2016. The UI2 mooring carried 10 hydrophones: HM511 (336m), HM512 (327m), HM513 (318m), HM514 (309m), HM515 (300m), HM516 (291m), HM517 (282m), HM518 (273m), HM519 (264m), HM320 (255m). A total of 4358 recordings were obtained from each hydrophone every 3 hours from Sep 2014 - Jan 2016. The UI3 mooring carried 10 hydrophones: HM521 (317m), HM522 (308m), HM523 (299m), HM524 (290m), HM525 (281m), HM526 (272m), HM527 (263m), HM528 (254m), HM529 (245m), HM330 (236m). A total of 8188 recordings were obtained from each hydrophone every 3 hours from Sep 2014 - Jan 2016. The UI4 mooring carried 10 hydrophones: HM531 (313m), HM532 (304m), HM533 (295m), HM534 (286m), HM535 (277m), HM536 (268m), HM537 (259m), HM538 (250m), HM539 (241m), HM340 (232). A total of 8189 recordings were obtained from each hydrophone every 3 hours from Sep 2014 - Jan 2016. The UI5 mooring carried 9 hydrophones: HM542 (565m), HM543 (556m), HM544 (547m), HM545 (538m), HM546 (529m), HM547 (520m), HM548 (511m), HM549 (502m), HM550 (493m). A total of 4359 recordings were obtained from each hydrophone every 3 hours from Sep 2014 - Mar 2016. Each acoustic recording covered 130 s with sampling rate 1000Hz. 10-, 50- and 90- percentiles of sound pressure and power were calculated for each reception using 50 % overlapping Hanning window with a window length of 1024 samples. The units for sound pressure is Pa. The unit for power (ocean sound level) is dB re uPa2 Hz-1. Noise by cable strumming is included. The processing is described in Geyer et al. 2021 https://doi.org/10.1121/2.0001507.

XBT data collected north of Svalbard, during the 2021 dry run with Le Commandant Charcot to the North Pole.

CTD data collected north of Svalbard, during the UAK 2021 Research School with KV Svalbard. Data has been processed with the Sea-Bird SBEDataprocessing tool.

XBT data collected north of Svalbard, during the UAK 2021 Research School with KV Svalbard. Data has been processed with the Sea-Bird SBEDataprocessing tool.

CTD data file from the INTAROS2018 cruise on KV Svalbard in summer 2018.

Time averaged sound pressure obtained from the ACOBAR acoustic experiment in Fram Strait. The data were were obtained over 362 days every 3 hours from Aug 2010 - Jul 2011, and over 311 days every 3 hours from Sep 2011 - Jul 2012. 10-, 50- and 90- percentiles of the sound pressure and power for each frequency (0-500 Hz) were computed.