PANGAEA_990270 Density of stones in image transects recorded at station EG-IV Meyer-Kaiser, Kirstin; Bergmann, Melanie; Purser, Autun Density of stones in image transects recorded at station EG-IV 2026-05-21 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.990270 Investigator Kirstin Meyer-Kaiser kmeyer@whoi.edu Earth Science Event label Date/Time of event File name Stones Area Stones Reference/source geoscientificInformation EG_IV Ocean Floor Observation and Bathymetry System Ocean Floor Observation System PS107 PS107_27-1 PS126 PS126_20-12 PS93/058-18 PS93.2 OFOS photographic survey with BIIGLE analysis Polarstern 2015-07-31 2021-06-14 Complete 78.79573 78.90949 -3.197399 -2.98033 unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 1252 data points text/tab-separated-values Krumpen, Thomas; Meyer-Kaiser, Kirstin; Ackermann, Lars; Castle, D; Bergmann, Melanie; Hoppmann, Mario; Khan, Saeed Akhtar; Purser, Autun; Schmithüsen, Holger; Wekerle, Claudia (submitted): Glacier shadows on the seafloor: How a warming climate increases iceberg occurrence and changes Arctic deep-sea biodiversity. Bergmann, Melanie (2018): Seabed photographs taken along OFOS profile PS107_27-1 during POLARSTERN cruise PS107 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.896655 Bergmann, Melanie; Taylor, James; Schewe, Ingo (2017): Seabed photographs taken along OFOS profile PS93/058-18 during POLARSTERN cruise PS93.2 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.873997

Images were recorded in transects at HAUSGARTEN station EG-IV in 2015, 2017, and 2021 using the OFOBS towed camera system. A set of 30 images were randomly selected from the beginning, middle, and end of the transects (total = 90 images per year). Images that were too bright, too dark, or outside the range 1.3 - 1.6 m above the seafloor were excluded from analysis. Stones in each image were annotated using the online program BIIGLE (biigle.de). Three red laser points in each image provided a size reference to calculate the surface area. The number of stones was divided by the surface area of each image to yield the density. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.990270"!

http://en.wikipedia.org/wiki/Area Area http://www.BIIGLE.de OFOS photographic survey with BIIGLE analysis https://doi.org/10.17815/jlsrf-3-163 Polarstern https://doi.pangaea.de/10.1594/PANGAEA.873997 Seabed photographs taken along OFOS profile PS93/058-18 during POLARSTERN cruise PS93.2 https://doi.pangaea.de/10.1594/PANGAEA.896655 Seabed photographs taken along OFOS profile PS107_27-1 during POLARSTERN cruise PS107 DIF 9.4 2026-05-21 2026-07-15