cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.943280
title: Whale sightings during POLARSTERN cruise PS88.2 (ANT-XXX/1.2)

description: Data on whale distribution and abundance in the polar oceans is rather sparse, as implementing the standard surveying method, line-transect surveys, is challenging and costly. To overcome this problem, we initiated a program to electronically log all opportunistic cetacean sightings during all Polarstern expeditions through the nautical officer on watch. Opportunistic (visual) sightings by naked eye were logged during Polarstern Cruise PS88.2 (Las Palmas – Cape Town) by the nautical officer on duty using a customized Software package (WALOG, WhAleLOGger) installed on a touch screen laptop located on the ship's bridge. Species were identified by naked eye or handheld binoculars (7x50) to the lowest possible taxonomical level and assigned a “certainty” level of identification. The number of animals were counted if possible or estimated for larger groups. Whenever identification to species level was not possible, the next identifiable taxonomical category was assigned. Information on sighting position, date and time are automatically transferred from the ship's DAVIS-Ship System (https://dship.awi.de/) to the WALOG software at the time of logging. Photographs were taken if possible for retrospective analysis. All data of acquired sightings were retrospectively validated by a marine biologist and converted to a standard format. To this end, plausibility of sighting time, location, standardization of species names, eventual comments added at the time of sighting, as well as additional information such as photographs (if available) were checked either to verify or improve species identification. Datasets are used in species distribution modelling and to inform interested parties about occurrences.
description: Date/Time is given in UTC. Certainty of identification: definite if observer clearly identified the species. The number of individuals is binned according to the options given in the data acquisition software: 1, 2, 3, less equal 5, less equal 10, greater than 10, greater than 20. More precise values may exist, due to observer comments.
DOI: 10.1594/pangaea.943282
title: Whale sightings durin POLARSTERN cruise PS88.1 (ANT-XXX/1.1)

description: Data on whale distribution and abundance in the polar oceans is rather sparse, as implementing the standard surveying method, line-transect surveys, is challenging and costly. To overcome this problem, we initiated a program to electronically log all opportunistic cetacean sightings during all Polarstern expeditions through the nautical officer on watch. Opportunistic (visual) sightings by naked eye were logged during Polarstern Cruise PS88.1 (Bremerhaven – Las Palmas) by the nautical officer on duty using a customized Software package (WALOG, WhAleLOGger) installed on a touch screen laptop located on the ship's bridge. Species were identified by naked eye or handheld binoculars (7x50) to the lowest possible taxonomical level and assigned a “certainty” level of identification. The number of animals were counted if possible or estimated for larger groups. Whenever identification to species level was not possible, the next identifiable taxonomical category was assigned. Information on sighting position, date and time are automatically transferred from the ship's DAVIS-Ship System (https://dship.awi.de/) to the WALOG software at the time of logging. Photographs were taken if possible for retrospective analysis. All data of acquired sightings were retrospectively validated by a marine biologist and converted to a standard format. To this end, plausibility of sighting time, location, standardization of species names, eventual comments added at the time of sighting, as well as additional information such as photographs (if available) were checked either to verify or improve species identification. Datasets are used in species distribution modelling and to inform interested parties about occurrences.
description: Date/Time is given in UTC. Certainty of identification: definite if observer clearly identified the species. The number of individuals is binned according to the options given in the data acquisition software: 1, 2, 3, less equal 5, less equal 10, greater than 10, greater than 20. More precise values may exist, due to observer comments.
DOI: 10.1594/pangaea.943284
title: Whale sightings during POLARSTERN cruise PS120

description: Data on whale distribution and abundance in the polar oceans is rather sparse, as implementing the standard surveying method, line-transect surveys, is challenging and costly. To overcome this problem, we initiated a program to electronically log all opportunistic cetacean sightings during all Polarstern expeditions through the nautical officer on watch. Opportunistic (visual) sightings by naked eye were logged during Polarstern Cruise PS120 (Port Stanley – Bremerhaven) by the nautical officer on duty using a customized Software package (WALOG, WhAleLOGger) installed on a touch screen laptop located on the ship's bridge. Species were identified by naked eye or handheld binoculars (7x50) to the lowest possible taxonomical level and assigned a “certainty” level of identification. The number of animals were counted if possible or estimated for larger groups. Whenever identification to species level was not possible, the next identifiable taxonomical category was assigned. Information on sighting position, date and time are automatically transferred from the ship's DAVIS-Ship System (https://dship.awi.de/) to the WALOG software at the time of logging. Photographs were taken if possible for retrospective analysis. All data of acquired sightings were retrospectively validated by a marine biologist and converted to a standard format. To this end, plausibility of sighting time, location, standardization of species names, eventual comments added at the time of sighting, as well as additional information such as photographs (if available) were checked either to verify or improve species identification. Datasets are used in species distribution modelling and to inform interested parties about occurrences.
description: Date/Time is given in UTC. Certainty of identification: definite if observer clearly identified the species. The number of individuals is binned according to the options given in the data acquisition software: 1, 2, 3, less equal 5, less equal 10, greater than 10, greater than 20. More precise values may exist, due to observer comments.
DOI: 10.1594/pangaea.944260
title: Wet chemical surface ozone measurements during POLARSTERN cruise ANT-I/1 (PS01) in 1982/83

description: On the outward journey, European air masses, loaded by photochemically produced ozone, may have partly influenced the measurements in clean air. As simultaneously measured low concentrations of Krypton-85 (which only has anthropogenic sources) show, the high ozone mixing ratios at 0-5°N cannot be explained by photochemical formation, but must be of natural origin. On the return journey, the ITCZ was at 6°S and was weak. This explains the very low ozone values of only 4 ppb at times, caused by the photolysis of ozone.The ozone device was housed in the crow's nest, to avoid ship-polluted interference. At later cruises, the instrument was placed near the weather station, because the maintenance in the crow’s nest was impractical and the new air intake at the uppermost railing turned out to be suitable as well. As a precaution, the air pump was changed nine times during the trip. At the end of the last section, the pump wobbled a little, resulting in a five percent loss of production, which could be corrected
DOI: 10.1594/pangaea.944263
title: Wet chemical surface ozone measurements during POLARSTERN cruise ANT-I/2 (PS01) in 1983

description: On the outward journey, European air masses, loaded by photochemically produced ozone, may have partly influenced the measurements in clean air. As simultaneously measured low concentrations of Krypton-85 (which only has anthropogenic sources) show, the high ozone mixing ratios at 0-5°N cannot be explained by photochemical formation, but must be of natural origin. On the return journey, the ITCZ was at 6°S and was weak. This explains the very low ozone values of only 4 ppb at times, caused by the photolysis of ozone.The ozone device was housed in the crow's nest, to avoid ship-polluted interference. At later cruises, the instrument was placed near the weather station, because the maintenance in the crow’s nest was impractical and the new air intake at the uppermost railing turned out to be suitable as well. As a precaution, the air pump was changed nine times during the trip. At the end of the last section, the pump wobbled a little, resulting in a five percent loss of production, which could be corrected
DOI: 10.1594/pangaea.944269
title: Wet chemical surface ozone measurements during POLARSTERN cruise ANT-I/3 (PS01) in 1982/83

description: On the outward journey, European air masses, loaded by photochemically produced ozone, may have partly influenced the measurements in clean air. As simultaneously measured low concentrations of Krypton-85 (which only has anthropogenic sources) show, the high ozone mixing ratios at 0-5°N cannot be explained by photochemical formation, but must be of natural origin. On the return journey, the ITCZ was at 6°S and was weak. This explains the very low ozone values of only 4 ppb at times, caused by the photolysis of ozone.The ozone device was housed in the crow's nest, to avoid ship-polluted interference. At later cruises, the instrument was placed near the weather station, because the maintenance in the crow’s nest was impractical and the new air intake at the uppermost railing turned out to be suitable as well. As a precaution, the air pump was changed nine times during the trip. At the end of the last section, the pump wobbled a little, resulting in a five percent loss of production, which could be corrected
description: Positions partly approximate
DOI: 10.1594/pangaea.944277
title: Wet chemical surface ozone measurements during POLARSTERN cruise ARK-I/1 (PS03) in 1983

description: Ozone was only measured on the first leg of the journey. As was often the case with other voyages at high latitudes, the ozone mixture ratio decreased northwards.
description: Positions rather approximate.
DOI: 10.1594/pangaea.944282
title: Wet chemical surface ozone measurements during POLARSTERN cruise ANT-II/1 (PS04) in 1983

description: The ozone device was operated in the crow's nest to be free of ship interference. This precautionary measure proved to be unnecessary, as parallel measurements with an optical ozone device showed. It even had disadvantages because of the awkward usability and was no longer practiced on later trips. The bubbler was completely replaced once during the trip. The air pump on the ozone device was changed five times as a precaution. The care was provided by Dr. Helas taken over by MPI Mainz. On the outward journey, an ozone minimum was observed in the area of the ITCZ (7°N), as is typical for conditions with high levels of solar radiation and low vertical mixing. Further trace substances (NOx; HNO₃; krypton-85, aerosol) were measured on this trip.
DOI: 10.1594/pangaea.944355
title: Wet chemical surface ozone measurements during POLARSTERN cruise ANT-II/5 (PS04) in 1982/83

description: The ozone device was operated in the crow's nest to be free of ship interference. This precautionary measure proved to be unnecessary, as parallel measurements with an optical ozone device showed. It even had disadvantages because of the awkward usability and was no longer practiced on later trips. The bubbler was completely replaced once during the trip. The air pump on the ozone device was changed five times as a precaution. The care was provided by Dr. Helas taken over by MPI Mainz. On the outward journey, an ozone minimum was observed in the area of the ITCZ (7°N), as is typical for conditions with high levels of solar radiation and low vertical mixing. Further trace substances (NOx; HNO₃; krypton-85, aerosol) were measured on this trip.
description: Positions approximate
DOI: 10.1594/pangaea.942300
title: Oceanographic parameters for the sample stations of the cruise AT261

description: Offshore wind energy is a steadily growing sector contributing to the worldwide energy production. The impact of these offshore constructions on the marine environment, however, remains unclear in many aspects. In fact, little is known about potential emissions from corrosion protection systems such as organic coatings or galvanic anodes composed of Al and Zn alloys, used to protect offshore structures. In order to assess potential chemical emissions from offshore wind farms and their impact on the marine environment water and sediment samples were taken in the surrounding and within different wind farms of the German Bight in April 2018. At every sampling station oceanographic parameters were measured directly on board with respective probes of a multimeter for pH, dissolved oxygen, temperature and conductivity. Additionally, the current associated weather parameters (temperature in air, wind speed, air pressure) were noted from the ship system.
DOI: 10.1594/pangaea.944399
title: Wet chemical surface ozone measurements during POLARSTERN cruise ARK-II/1 (PS05) in 1984

description: The 1st leg of the voyage was used for ship inspections off Labrador at 57.5°N (May 10-June 10); Stopover in Tromsø (June 10-12); the 2nd leg of the journey was in the Fram Strait.The sometimes very high ozone mixture ratios in the first part of the voyage are due to stratospheric intrusions, since according to the ship's weather station report there was a relatively stationary complex atmospheric low system off Newfoundland. This is favorable for the formation of tropopause folds. During the 2nd leg of the voyage, very low ozone mixture ratios were measured at times at 70°N, which were probably due to ozone depletion by bromine during sunny weather.
description: Positions might be approximate.
DOI: 10.1594/pangaea.942306
title: Grain size distribution for sediment samples of the cruise AT261

description: Offshore wind energy is a steadily growing sector contributing to the worldwide energy production. The impact of these offshore constructions on the marine environment, however, remains unclear in many aspects. In fact, little is known about potential emissions from corrosion protection systems such as organic coatings or galvanic anodes composed of Al and Zn alloys, used to protect offshore structures. In order to assess potential chemical emissions from offshore wind farms and their impact on the marine environment water and sediment samples were taken in the surrounding and within different wind farms of the German Bight in April 2018. The sediment samples were taken by a box grab and analyzed for their grain size distribution by laser diffraction.
DOI: 10.1594/pangaea.945331
title: Hourly acoustic presence of bowhead whales (Balaena mysticetus) based on passive acoustic monitoring data from mooring ARKF16-09, recorder SV1021, in Fram Strait from June 2012 to November 2012

description: Presence-absence data on hourly acoustic presence of bowhead whales (Balaena mysticetus) were obtained from passive acoustic monitoring (PAM) data collected by passive acoustic recorder SV1021 of type Sono.Vault (manufactured by develogic GmbH, Hamburg, Germany) at 78° 49.76' N, 000° 25.77' E, mooring ARKF016-09, in Fram Strait. Passive acoustic data were collected as part of the Frontiers in Arctic Marine Monitoring (FRAM) observatory in Fram Strait from June to November 2012 (recording period) by SV1021 (deployment period from June 2012 to September 2014). The recorder was moored at 800 m depth and scheduled to record continuously at a sample rate of 5,333 Hz. Hourly acoustic presence of bowhead whales was assessed based on automated detections of bowhead whale vocalizations using the LFDCS ('Low-Frequency Detection and Classification System') software (Baumgartner and Mussoline, 2011, https://doi.org/10.1121/1.3562166), using an SNR ('signal-to-noise ratio') threshold of 8 dB and a Mahalanobis distance threshold of 1.5. All automated detections of bowhead whale vocalizations were visually reviewed by a trained analyst on an hourly basis in spectrograms using Raven Pro 1.5 (Bioacoustics Research Program, Cornell Lab of Ornithology, Ithaca, USA; window size: 2.5 min; frequency range: 0-1,300 Hz; spectrogram settings: FFT 1,024, overlap 90 %, Hann window). This table contains information on acoustic presence (indicated by “1”, with at least one verified bowhead whale call present in a given hour) or acoustic absence (indicated by “0”) of bowhead whale vocalizations on an hourly basis for the recording period from June to November 2012.
DOI: 10.1594/pangaea.945741
title: Data collection of age determination data for LANDO multi-core study

description: This data collection of age determination data from high latitude lake systems (50° N to 90° N, 55 sediment cores, and a total of 602 dating points) was part of the multi-core study of the LANDO approach. The term “LANDO” refers to the implementation by Pfalz et al. (2022), which stands for “Linked age and depth modeling”. We collected the data between 2018 and 2021 from either the Pangaea database, PaleoLake database, or tables within the main body or supplementary material of publications. The uploaded data collection contains links to the main data source and paper reference for the corresponding age determination dataset. The data harmonization followed the syntax and semantics proposed by Pfalz et al. (2021) (https://doi.org/10.1016/j.cageo.2021.104791) on harmonizing heterogeneous multi-proxy data. This data collection is based on drilling campaigns from 1993 to 2020.
DOI: 10.1594/pangaea.945170
title: Wet chemical surface ozone measurements during POLARSTERN cruise ARK-II/4 (PS05) in 1984

description: In general, the ozone mixing ratios were found to decrease with increasing latitude, which was confirmed at this cruise again.During the 3nd leg of the voyage, very low ozone mixture ratios were observed at times at 70°N, which were probably due to ozone depletion by bromine during sunny weather.
description: Please note that the position/date combination differs in parts a few hours in this dataset compared to the respective mastertrack of the leg. It is not clear why.
DOI: 10.1594/pangaea.945171
title: Wet chemical surface ozone measurements during POLARSTERN cruise ARK-II/5 (PS05) in 1984

description: In general, the ozone mixing ratios were found to decrease with increasing latitude, which was confirmed at this cruise again.During the 3nd leg of the voyage, very low ozone mixture ratios were observed at times at 70°N, which were probably due to ozone depletion by bromine during sunny weather.
description: Please note that the position/date combination differs in parts a few hours in this dataset compared to the respective mastertrack of the leg. It is not clear why.
DOI: 10.1594/pangaea.945858
title: Snow stratigraphy measurements at ice stations during RV POLARSTERN cruise PS111

description: Measurements were obtained doing classical snow pits at all ice stations during RV POLARSTERN cruise PS118. Snow pits were taken at representative locations of the floe. Measurements were done on an undisturbed shaded working wall of the snow pit.
DOI: 10.1594/pangaea.945189
title: Wet chemical surface ozone measurements during POLARSTERN cruise ANT-III/1 (PS06) in 1984

description: On the outward journey an ozone minimum was encountered at the ITCZ, as is typical for high levels of solar radiation and low vertical exchange. Under such conditions, ozone can be depleted by photolysis, but cannot be replaced due to weak vertical exchange. On the return voyage, two ozone peaks occurred at and north of the ITCZ. According to Class and Ballschmiter (1986) who measured some organic trace gases, the ITCZ consisted of two branches found at 2°S and 2°N. The noticeable ozone peaks may have been caused by strong vertical exchange, with ozone being mixed down from the upper troposphere. In some cases, clear daily variations were recorded during the journey.
description: Please note, that the positions are not always known.
DOI: 10.1594/pangaea.946576
title: Age model analysis of sediment core HH14-897-GC-MF from Hornsund, Svalbard

description: Sediment core (gravity core) HH14-897-GC-MF was collected from Brepolen Bay, inner Hornsund, Svalbard (76°59.555' N; 016°24.313' E), from a water depth of 125 m, on 2014-10-18, during R/V Helmer Hanssen cruise. The total core length was 154 cm. The sampling site was located in a glacial bay formed after the termination of the Little Ice Age (Strzelecki et al., 2020, doi:10.1002/esp.4819). The dataset with raw data on gamma spectrometry measurements of excess 210Pb and 137Cs, total organic carbon (TOC) content, and delta 13C isotopic ratio of bulk organic matter is presented by Szczuciński et al. (2022, doi:10.1594/PANGAEA.946568). Here is presented an age model based on the constant flux constant sedimentation rate (CFCS) model verified with 137Cs peaks. The data were obtained within a National Science Center (Poland) project: 'Impact of post-Little Ice Age glaciers retreat on sediment accumulation and carbon burial rates in subpolar fjords' and presented during conference presentations (e.g., Szczuciński et al. 2017). The excess 210Pb and 137Cs data were measured in the Institute of Geology at Adam Mickiewicz University in Poznań, Poland using a gamma detector Canberra BE3830 (Szczuciński, submitted). The model was calculated using serac code (Bruel and Sabbatier, 2020, doi:10.1016/j.jenvrad.2020.106449).
DOI: 10.1594/pangaea.946178
title: Snow thickness measurements at ice station PS111_SIP_3 during RV POLARSTERN cruise PS111

description: Snow depth measurements were obtained using a MagnaProbe (Snow-Hydro, Fairbanks, Alaska, USA) during walking surveys on most ice stations during PS111. The walks were randomly done on the entire floe.
DOI: 10.1594/pangaea.946179
title: Snow thickness measurements at ice station PS111_SIP_8 during RV POLARSTERN cruise PS111

description: Snow depth measurements were obtained using a MagnaProbe (Snow-Hydro, Fairbanks, Alaska, USA) during walking surveys on most ice stations during PS111. The walks were randomly done on the entire floe.
DOI: 10.1594/pangaea.946180
title: Snow thickness measurements at ice station PS111_SIP_10 during RV POLARSTERN cruise PS111

description: Snow depth measurements were obtained using a MagnaProbe (Snow-Hydro, Fairbanks, Alaska, USA) during walking surveys on most ice stations during PS111. The walks were randomly done on the entire floe.
DOI: 10.1594/pangaea.946181
title: Snow thickness measurements at ice station PS111_SIP_14 during RV POLARSTERN cruise PS111

description: Snow depth measurements were obtained using a MagnaProbe (Snow-Hydro, Fairbanks, Alaska, USA) during walking surveys on most ice stations during PS111. The walks were randomly done on the entire floe.
DOI: 10.1594/pangaea.946182
title: Snow thickness measurements at ice station PS111_SIP_17 during RV POLARSTERN cruise PS111

description: Snow depth measurements were obtained using a MagnaProbe (Snow-Hydro, Fairbanks, Alaska, USA) during walking surveys on most ice stations during PS111. The walks were randomly done on the entire floe.