Recherche

Brett, Gemma Marie; Leonard, Gregory H; Rack, Wolfgang; Irvin, Anne; Haas, Christian; Langhorne, Patricia J; Smith, Inga J — 2024 Ground-based electromagnetic induction (EM) time-series measurements of land-fast sea ice and sub-ice platelet layer thicknesses were carried out on land-fast sea ice in McMurdo Sound, Antarctica in winter (August 8 to 26 October) and late spring (November 4-18) of 2018. The EM data were acquired using a frequency-domain Geonics Ltd EM31-MK2 instrument mounted on the sea ice surface in winter and a sledge in late spring. The thicknesses of consolidated ice (sea ice plus the snow layer) and the sub-ice platelet layer were simultaneously retrieved from the EM31 measured response (i.e., Apparent Conductivity (AppCond) and Inphase (Inph)) using the forward modelling and inversion methods of Irvin (2018). Temporal variability in EM measured thicknesses detected the seasonal growth of land-fast sea ice and sub-ice platelet layer in winter, and shorter timescale variability related to strong offshore wind events in winter and the tides in late spring (Brett et al., 2024). https://creativecommons.org/licenses/by/4.0/legalcode

Brett, Gemma Marie; Leonard, Gregory H; Rack, Wolfgang; Irvin, Anne; Haas, Christian; Langhorne, Patricia J; Smith, Inga J — 2024 Ground-based electromagnetic induction (EM) time-series measurements of land-fast sea ice and sub-ice platelet layer thicknesses were carried out on land-fast sea ice in McMurdo Sound, Antarctica in winter (August 8 to 26 October) and late spring (November 4-18) of 2018. The EM data were acquired using a frequency-domain Geonics Ltd EM31-MK2 instrument mounted on the sea ice surface in winter and a sledge in late spring. The thicknesses of consolidated ice (sea ice plus the snow layer) and the sub-ice platelet layer were simultaneously retrieved from the EM31 measured response (i.e., Apparent Conductivity (AppCond) and Inphase (Inph)) using the forward modelling and inversion methods of Irvin (2018). Temporal variability in EM measured thicknesses detected the seasonal growth of land-fast sea ice and sub-ice platelet layer in winter, and shorter timescale variability related to strong offshore wind events in winter and the tides in late spring (Brett et al., 2024). https://creativecommons.org/licenses/by/4.0/legalcode

Rysgaard, Søren; Boone, Wieter; Kirillov, Sergey A; Dmitrenko, Igor — 2024 Time series of currents were obtained in the period October 2013 and May 2014 by use of an ice-tethered mooring in Young Sound, Greenland. At YS03 (74.310 N, 20.304 W) The mooring consisted of a 300 kHz downward-looking Teledyne RDI Workhorse Sentinel acoustic Doppler current profiled (ADCP) measuring horizontal and vertical current velocities. Velocity precision and resolution were ±1% and ±5 cm s, respectively, while compass accuracy and resolution were ±2 and 0.1 degrees. The ADCP was set to sample 39 bins (bin size of 2m), where each 10 min sample consists of averages of 20 pings. The first and last bins were set at 6 and 84 m depth. Velocities were corrected for magnetic deviation (18.5) and samples with insufficient acoustic backscatter in the water column were eliminated with the RDI ADCP software. For further details see Boone et al., 2017 (Circulation and fjord-shelf exchange during the ice-covered period in Young Sound-Tyrolerfjord, Northwest Greenland (74o N). Estuar. Coast. Shelf Sci., 15, 194-205. https://doi.org/10.1016/j.ecss.2017.06.021 ). We gratefully acknowledge the contributions of the Canada Excellence Research Chair (CERC) and Canada Research Chair (CRC) programs. Support was also provided by the Natural Sciences and Engineering Research (NSERC) Council, the Canada Foundation for Innovation and the Aage V Jensen Foundations. This work is a contribution to the Arctic Science Partnership (ASP) asp-net.org. https://creativecommons.org/licenses/by/4.0/legalcode

Rysgaard, Søren; Boone, Wieter; Kirillov, Sergey A; Dmitrenko, Igor — 2024 Time series of currents, salinity (conductivity), temperature Chlorophyl-a and CDOM were obtained in the period May- June 2014 by use of a McLane ice-tethered profiler in Young Sound, Greenland. At YS05 (74.238 N, 20.188 W) the mooring consisted of a 600 kHz downward-looking Nortek Aquadopp ADCP and an SBE 52-MP CTD (accuracy temperature ±0.002 C and conductivity ±0.0003 Sm-1) and WetLab ECO triplet (Cholorphyll-a and CDOM). Velocities were corrected for magnetic deviation (18.5o). The water column sampling spanned between 1.5 and 30 m depth every 30 min. The ADCP was set to sample 80 bins (bin size of 0.5 m) and each bin consisted of a 1 min ensemble average of 60 pings. The first and last bins were centred at 1m and 41 m depth. Only bins between 2.5 and 30 m were adequately measured. For further details see Boone et al., 2017 (Circulation and fjord-shelf exchange during the ice-covered period in Young Sound-Tyrolerfjord, Northwest Greenland (74 N). Estuar. Coast. Shelf Sci., 15, 194-205. https://doi.org/10.1016/j.ecss.2017.06.021). We gratefully acknowledge the contributions of the Canada Excellence Research Chair (CERC) and Canada Research Chair (CRC) programs. Support was also provided by the Natural Sciences and Engineering Research (NSERC) Council, the Canada Foundation for Innovation and the Aage V Jensen Foundations. This work is a contribution to the Arctic Science Partnership (ASP) asp-net.org. https://creativecommons.org/licenses/by/4.0/legalcode

Rysgaard, Søren; Boone, Wieter; Kirillov, Sergey A; Dmitrenko, Igor — 2024 Time series of currents were obtained in the period October 2013 and May 2014 by use of an ice-tethered mooring in Young Sound, Greenland. At YS02 (74.267o N, 20.248o W) the mooring consisted of a 300 kHz downward-looking Teledyne RDI Workhorse Sentinel acoustic Doppler current profiler (ADCP) measuring horizontal and vertical current velocities. Velocity precision and resolution were ±1% and ±5 cm s-1, respectively, while compass accuracy and resolution were ±2 and 0.1 degrees. The ADCP was set to sample 39 bins (bin size of 2m), where each 10 min sample consists of averages of 20 pings. The first and last bins were set at 6 and 84 m depth. Velocities were corrected for magnetic deviation (18.5 degrees) and samples with insufficient acoustic backscatter in the water column were eliminated with the RDI ADCP software. For further details see Boone et al., 2017 (Circulation and fjord-shelf exchange during the ice-covered period in Young Sound-Tyrolerfjord, Northwest Greenland (74o N). Estuar. Coast. Shelf Sci., 15, 194-205. https://doi.org/10.1016/j.ecss.2017.06.021). We gratefully acknowledge the contributions of the Canada Excellence Research Chair (CERC) and Canada Research Chair (CRC) programs. Support was also provided by the Natural Sciences and Engineering Research (NSERC) Council, the Canada Foundation for Innovation and the Aage V Jensen Foundations. This work is a contribution to the Arctic Science Partnership (ASP) asp-net.org. https://creativecommons.org/licenses/by/4.0/legalcode

Zorzi, Coralie; de Vernal, Anne — 2024 This data set presents the palynological row data performed on sediment samples from the ODP Hole 882A (50°21.79'N, 167°35.99'E, 3244 m) drilled on the Detroit Seamount in the northern part of the Hawaiian-Emperor Seamount Chain in the North Pacific Ocean during the Plio-Pleistocene. A total of 44 samples were analyzed for their palynological contents using a transmitted light microscope at 250× to 1000× magnification. The palynomorphs analyzed included dinocysts, acritarchs, pollen grains, spores and other palynofacies. In the study sequence, the assemblages are characterized by 33 dinocyst species, 2 acritarch taxa, 8 pollen morphotypes. Row counts are shown (number of identified specimens), as well as labels, depth (in mcd) and estimated age (Ma) of the studied samples. https://creativecommons.org/licenses/by/4.0/legalcode

Neufeld, Monika; Meyn, Klaas; Kihara, Terue Cristina; Martínez Arbizu, Pedro; Kuhn, Thomas — 2024 Here we present the discovery of R. daphneae along the southern Central Indian Ridge, at the Rodriguez Triple Junction, and along the northern Southeast Indian Ridge within the German contract area for the exploration of marine massive sulfide deposits in the Indian Ocean. We used video sled and Remotely Operated Vehicles (ROV) to collect video imagery and recognized a total of eight individuals. The two supplementary videos report on one individual associated with polychaetes on its tentacles and oral disc and, and one individual of the giant anemone that was recorded for the first time, capturing prey, a shrimp of the species Rimicaris kairei. This will provide insight into the basic ecology of the rather elusive giant anemone, R. daphnaea.Supplementary video 1: Video imagery collect by the Remotely Operated Vehicle ROPOS (Remotely Operated Platform for Ocean Science, www.ropos.com) showing commensal polychaetes moving on an individual of Relicanthus daphneae from two different cameras. Arrows in the video indicate position of polychaetes on the giant anemone.Supplementary video 2: Video imagery collect by the Remotely Operated Vehicle ROPOS (Remotely Operated Platform for Ocean Science, www.ropos.com) showing an individual of Relicanthus daphneae capturing prey (Rimicaris kairei). Arrows in the video indicate the position of the shrimp R. Kairei captured by the giant anemone. https://creativecommons.org/licenses/by/4.0/legalcode

Campanyà-Llovet, Neus; Bates, Amanda E; Cuvelier, Daphne; Giacomello, Eva; Catarino, Diana; Gooday, Andrew J; Berning, Björn; Figuerola, Blanca; Malaquias, Manuel; Moura, Carlos J; Xavier, Joana R; Sutton, Tracey T; Fauconnet, Laurence; Ramalho, Sofia; Neves, Bárbara M; Menezes, Gui M; Horton, Tammy; Gebruk, Andrey V; Minin, K V; Bried, Joël; Molodtsova, Tina; Silva, Mónica A; Dilman, Anna; Kremenetskaia, Antonina; Costa, Eudriano; Clarke, Jameson; Martins, Helen R; Pham, Christopher Kim; Carreiro-Silva, Marina; Colaço, Ana — 2023 Trait-based approaches that complement taxonomic-based studies have increased in popularity among the scientific community over the last decades. The collection of biological and ecological characteristics of species (i.e., traits) provides insight into species and ecosystem vulnerability to environmental and anthropogenic changes, as well as ecosystem functioning. While most of the available trait databases to date contain essential information to understand the functional diversity of a taxonomic group or functional group based on size, the FUN Azores trait database has an ecosystem-based approach that provides a comprehensive assessment of diverse fauna (meio-, macro-, and megafauna) from benthic and pelagic environments in the Azores Marine Park; including ridges, seamounts, and hydrothermal vents. We used a collaborative approach involving 30 researchers with different expertise to develop the trait database; which contains compiled data on 14 traits representing morphological, behavioral, and life history characteristics for 1210 species, across 10 phyla. Meaning of quality flag codes: 0 - No information available; 1 - Inferred from a related species; 2 - Limited publications (Expert knowledge or published); 3 - Widely accepted (Expert knowledge or published) https://creativecommons.org/licenses/by/4.0/legalcode

Vermandele, Fanny; Sasaki, Matthew; Winkler, Gesche; Dam, Hans G; Madeira, Diana; Calosi, Piero — 2024 Specimens of the marine calanoid copepod Acartia tonsa were exposed for five days under laboratory conditions to the isolated or combined effects of hypoxia and a marine heatwave event to test for their sex-specific life-history and physiological responses to these stressors. Four treatments were used: control (C: 18 °C, 100 % O₂ sat.), hypoxia (H: 18 °C, 35 % O₂ sat.), marine heatwave (MHW: 25 °C, 100 % O₂ sat.) and combined conditions (HMHW: 25 °C, 35 % O₂ sat.). This dataset compiles all morphological and physiological measurements, namely routine metabolic oxygen consumption rates (µmol h⁻¹ and µmol mg⁻¹ h⁻¹), upper thermal limit (°C) as well as length (mm) and dry weight (µg) following the five-day laboratory exposure experiment. The experiment was conducted in the Marine Ecological and Evolutionary Physiology Laboratory (MEEP) at the University of Quebec in Rimouski (UQAR), Rimouski, QC, Canada. Copepods were maintained following the stock culture culturing protocol described in Dam et al. 2021 (https://doi.org/10.1038/s41558-021-01131-5). Namely, approximately 200 copepods were kept in three 5 L aquaria filled with artificial seawater kept at a salinity of 28.4 ± 0.5. The physicochemical parameters of the seawater were the following: temperature of 18 ± 0.4 °C, oxygen saturation of 93.7 ± 6.0 %, pH NBS of 8.20 ± 0.09. The photoperiod was kept at 13h light: 11 h dark. Copepods were fed ad libitum with a mixture of three phytoplankters: Tetraselmis sp., Thalassiosira weissflogii and Rhodomonas salina. https://creativecommons.org/licenses/by/4.0/legalcode

Vermandele, Fanny; Sasaki, Matthew; Winkler, Gesche; Dam, Hans G; Madeira, Diana; Calosi, Piero — 2024 Specimens of the marine calanoid copepod Acartia tonsa were exposed for five days under laboratory conditions to the isolated or combined effects of hypoxia and a marine heatwave event to test for their sex-specific life-history and physiological responses to these stressors. Four treatments were used: Control (C: 18 °C, 100 % O₂ sat.), Hypoxia (H: 18 °C, 35 % O₂ sat.), marine heatwave (MHW: 25 °C, 100 % O₂ sat.) and combined conditions (HMHW: 25 °C, 35 % O₂ sat.). This dataset compiles the survival data, expressed in terms of percentage and as the number of individuals at the beginning and end of exposure, for males and females, following the five-day exposure experiment. The experiment was conducted in the Marine Ecological and Evolutionary Physiology Laboratory (MEEP) at the University of Quebec in Rimouski (UQAR), Rimouski, QC, Canada. Copepods were maintained following the stock culture culturing protocol described in Dam et al. 2021 (https://doi.org/10.1038/s41558-021-01131-5). Namely, approximately 200 copepods were kept in three 5 L aquaria filled with artificial seawater kept at a salinity of 28.4 ± 0.5. The physicochemical parameters of the seawater were the following: temperature of 18 ± 0.4 °C, oxygen saturation of 93.7 ± 6.0 %, pH NBS of 8.20 ± 0.09. The photoperiod was kept at 13h light: 11 h dark. Copepods were fed ad libitum with a mixture of three phytoplankters: Tetraselmis sp., Thalassiosira weissflogii and Rhodomonas salina. https://creativecommons.org/licenses/by/4.0/legalcode

Parga Martínez, Karla B; Andersen, Thorbjørn Joest; Posth, Nicole; da Silva, Vitor; Strand, Jakob — 2024 The dataset contains information on microplastics particle morphology from microplastic particles extracted from a sediment core from Disko Bay, Greenland. The microplastic particle morphology is based on the length to diameter ratio of the major and minor dimensions (obtained from sIMPle software and µ-FTIR data). Particles were categorized as fiber-like if the ratio was > 3 (Fiber = Y) and as fragment-like if the ratio was < 3 (Fiber = N). The dataset also includes information on polymer type, lead-210 year, sediment layer (Depth), major and minor dimensions (µm) and size class (small or large). This datasets is complementary to https://doi.pangaea.de/10.1594/PANGAEA.972635, https://doi.pangaea.de/10.1594/PANGAEA.972712, and the limits of detection are in https://doi.pangaea.de/10.1594/PANGAEA.972709. https://creativecommons.org/licenses/by/4.0/legalcode

Rysgaard, Søren; Boone, Wieter; Kirillov, Sergey A; Dmitrenko, Igor — 2024 Time series of currents were obtained in the period May- June 2014 by use of an ice-tethered mooring in Young Sound, Greenland. At YS06 (74.245o N, 20.229o W) the mooring consisted of a 600 kHz downward-looking Nortek Aquadopp ADCP. Velocities were corrected for magnetic deviation (18.5o). The water column sampling spanned between 1.5 and 30 m depth every 30 min. The ADCP was set to sample 80 bins (bin size of 0.5 m) and each bin consisted of a 1 min ensamble average of 60 pings. The first and last bins were centred at 1m and 41 m depth. Only bins between 2.5 and 30 m were adequately measured. For further details see Boone et al., 2017 (Circulation and fjord-shelf exchange during the ice-covered period in Young Sound-Tyrolerfjord, Northwest Greenland (74o N). Estuar. Coast. Shelf Sci., 15, 194-205. https://doi.org/10.1016/j.ecss.2017.06.021). We gratefully acknowledge the contributions of the Canada Excellence Research Chair (CERC) and Canada Research Chair (CRC) programs. Support was also provided by the Natural Sciences and Engineering Research (NSERC) Council, the Canada Foundation for Innovation and the Aage V Jensen Foundations. This work is a contribution to the Arctic Science Partnership (ASP) asp-net.org. https://creativecommons.org/licenses/by/4.0/legalcode

Vermandele, Fanny; Sasaki, Matthew; Winkler, Gesche; Dam, Hans G; Madeira, Diana; Calosi, Piero — 2024 Specimens of the marine calanoid copepod Acartia tonsa were exposed for five days under laboratory conditions to the isolated or combined effects of hypoxia and a marine heatwave event to test for their sex-specific life-history and physiological responses to these stressors. Four treatments were used: Control (C: 18 °C, 100 % O₂ sat.), Hypoxia (H: 18 °C, 35 % O₂ sat.), marine heatwave (MHW: 25 °C, 100 % O₂ sat.) and combined conditions (HMHW: 25 °C, 35 % O₂ sat.). This dataset contains fecundity measurement, represented as the number of offspring (eggs, nauplii and copepodites) spawned by females in each experimental condition following the five-day exposure experiment. The experiment was conducted in the Marine Ecological and Evolutionary Physiology Laboratory (MEEP) at the University of Quebec in Rimouski (UQAR), Rimouski, QC, Canada. Copepods were maintained following the stock culture culturing protocol described in Dam et al. 2021 (https://doi.org/10.1038/s41558-021-01131-5). Namely, approximately 200 copepods were kept in three 5 L aquaria filled with artificial seawater kept at a salinity of 28.4 ± 0.5. The physicochemical parameters of the seawater were the following: temperature of 18 ± 0.4 °C, oxygen saturation of 93.7 ± 6.0 %, pH NBS of 8.20 ± 0.09. The photoperiod was kept at 13h light: 11 h dark. Copepods were fed ad libitum with a mixture of three phytoplankters: Tetraselmis sp., Thalassiosira weissflogii and Rhodomonas salina.----Eggs, offspring and copepodites were retrieved from each aquarium using a 41 µm sieve and placed in a small container. They were then counted one by one under a stereomicroscope (MDF41, Leica) and pipetted in a 500 mL glass beaker. https://creativecommons.org/licenses/by/4.0/legalcode

Vermandele, Fanny; Sasaki, Matthew; Winkler, Gesche; Dam, Hans G; Madeira, Diana; Calosi, Piero — 2024 Specimens of the marine calanoid copepod Acartia tonsa were exposed for five days under laboratory conditions to the isolated or combined effects of hypoxia and a marine heatwave event to test for their sex-specific life-history and physiological responses to these stressors. Four treatments were used: Control (C: 18 °C, 100 % O₂ sat.), Hypoxia (H: 18 °C, 35 % O₂ sat.), marine heatwave (MHW: 25 °C, 100 % O₂ sat.) and combined conditions (HMHW: 25 °C, 35 % O₂ sat.). This dataset compiles the physico-chemical parameters of the seawater (i.e. temperature, oxygen saturation, pH and salinity) in the aquaria holding the copepods during the five-day exposure experiment. The experiment was conducted in the Marine Ecological and Evolutionary Physiology Laboratory (MEEP) at the University of Quebec in Rimouski (UQAR), Rimouski, QC, Canada. Copepods were maintained following the stock culture culturing protocol described in Dam et al. 2021 (https://doi.org/10.1038/s41558-021-01131-5). Namely, approximately 200 copepods were kept in three 5 L aquaria filled with artificial seawater kept at a salinity of 28.4 ± 0.5. The physicochemical parameters of the seawater were the following: temperature of 18 ± 0.4 °C, oxygen saturation of 93.7 ± 6.0 %, pH NBS of 8.20 ± 0.09. The photoperiod was kept at 13h light: 11 h dark. Copepods were fed ad libitum with a mixture of three phytoplankters: Tetraselmis sp., Thalassiosira weissflogii and Rhodomonas salina. https://creativecommons.org/licenses/by/4.0/legalcode

Parga Martínez, Karla B; Andersen, Thorbjørn Joest; Posth, Nicole; da Silva, Vitor; Strand, Jakob — 2024 The dataset provides information on microplastics particles identified in a sediment core from Disko Bay, Greenland, collected in August 2015 and dated back to 1930. This sediment core was used for the reconstruction of microplastic accumulation in the Anthropocene. The sediment layers were dated radiometically (Lead-210 and Americium-241), extracted and identified via µ-FTIR.The table contains particle count, mass, polymer type, number of particles per polymer type, sediment layer (depth), which corresponds to a specific year, and microplastics accumulation in number of particles/Kg d.w. This datasets is complementary to https://doi.pangaea.de/10.1594/PANGAEA.972712, https://doi.pangaea.de/10.1594/PANGAEA.972713, and the limits of detection are in https://doi.pangaea.de/10.1594/PANGAEA.972709. https://creativecommons.org/licenses/by/4.0/legalcode

Parga Martínez, Karla B; Andersen, Thorbjørn Joest; Posth, Nicole; da Silva, Vitor; Strand, Jakob — 2024 The dataset contains information on limit of detection of microplastic particles extracted from a sediment core from Disko Bay, Greenland. The limit of detection was calculated based on the number of particles found in the procedural blanks during sample processing and it was calculated according to (mean+3)*SD. The dataset also provides information on the number of particles found in the air blanks of the clean laboratory where the sediments samples were processed. This datasets is complementary to https://doi.pangaea.de/10.1594/PANGAEA.972635, https://doi.pangaea.de/10.1594/PANGAEA.972712, and https://doi.pangaea.de/10.1594/PANGAEA.972713. https://creativecommons.org/licenses/by/4.0/legalcode

Parga Martínez, Karla B; Andersen, Thorbjørn Joest; Posth, Nicole; da Silva, Vitor; Strand, Jakob — 2024 The dataset contains information on microplastics particle size and size fractions throughout a sediment core from Disko Bay, Greenland, collected in August 2015 and dated back to 1930. Each sediment layer (depth) corresponds to a Lead-210 year categorized as Pre-plastic Boom (before 1950) and Post-Plastic Boom (after 1950). The polymer type, major and minor dimensions and the score were obtained during µ-FTIR data processing through the software sIMple. Particle size were categorized as small (20 - 100 µm) and large (>100µm) and further divided intro size fractions ((1) 20-50µm, (2) 50-100µm, (3) 100-250µm, (4) 250-500µm, (5) ≥500µm). This datasets is complementary to https://doi.pangaea.de/10.1594/PANGAEA.972635, https://doi.pangaea.de/10.1594/PANGAEA.972713, and the limits of detection are in https://doi.pangaea.de/10.1594/PANGAEA.972709. https://creativecommons.org/licenses/by/4.0/legalcode

Anhaus, Philipp; Schiller, Martin; Planat, Noémie; Katlein, Christian; Nicolaus, Marcel — 2023 The horizontal position of the remotely operated vehicle (ROV) during the ARTofMELT2023 expedition in May and June 2023 was measured using an acoustic Long Base Line (LBL) positioning system (LinkQuest Pinpoint) with an operating frequency of 26.77-44.62kHz. It consists of a transceiver onboard the ROV and 3 transponders which were deployed on 5 m long chains through the drifting ice cover at different horizontal distances from the ROV ice access hole. Due to the high latitude and glitches in the Pinpoint software's coordinate conversions, the surveys were virtually moved and 'fake' geographic positions centered around 1°N/1°E were used. The survey track was smoothed using a Kalman filter from initial acoustic fixes and cleaned for most obvious outliers. This calibration result in a floe-fixed, relative coordinate system (distance, relative, X and distance, relative, Y) with the origin (X=0 m, Y=0 m) at the ROV hole. The final position was recorded in the SPOT.ON survey systems software (OceanModulesTM). A quality flag for the position is introduced based on the time to the closest fix with "1" indicating good positon (fix reached <= 3s), "2" medium position (fix reached > 3s & <= 5s), and "3" bad position (fix reached > 5s). Depending on the scientific aim, a position with quality flag "3" can still be useful. The ROV depth was measured by an integrated pressure sensor (Keller A-21Y, Keller AG) included in the main electronics housing of the ROV and calibrated to 0 during pre-survey procedures, when the top side of the ROV was at the same level as the water surface. The accuracy of the sensor is 0.10 m. ROV attitude (roll, pitch, heading) was measured with an onboard inertial measuring unit (Microstrain) with three axis accelerometer, magnetometer, and gyroscope. https://creativecommons.org/licenses/by/4.0/legalcode

Anhaus, Philipp; Schiller, Martin; Planat, Noémie; Katlein, Christian; Nicolaus, Marcel — 2023 Videos as recorded by two HD-zoom cameras attached to a remotely operated vehicle (ROV) during the ARTofMELT2023 expedition in May and June 2023: An Insite Pacific Inc. Mini Zeus Mark III until June 5 and a Bowtech Surveyor WAHD with a 10:1 optical zoom since June 6. https://creativecommons.org/licenses/by/4.0/legalcode

Anhaus, Philipp; Schiller, Martin; Planat, Noémie; Katlein, Christian; Nicolaus, Marcel — 2023 pH values were obtained using a SBE18 pH sensor (Seabird) mounted on the remotely operated vehicle (ROV) during the ARTofMELT2023 expedition in May and June 2023. The values were derived from the sensor voltages using the same calibration during the entire expedition. This survey does not have any position data. https://creativecommons.org/licenses/by/4.0/legalcode