cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.776080
title: (Appendix A) Radiolarian abundance in ODP Hole 202-1241A

description: A quantitative radiolarian study at Ocean Drilling Program Site 1241 in the eastern tropical Pacific enables us to reconstruct paleoceanographic changes that occurred since the latest middle Miocene. Today, this site is located just under the Eastern Pacific Warm Pool (EPWP). Based on the abundance variations of radiolarian characteristic species which are indicators of upwelling and thermocline changes, it is suggested that three notable changes occurred at 10.6, 9.8, and 4.2 Ma in the region. Four distinct periods of oceanographic conditions bounded by these notable changes were characterized on the basis of the following: (1) stratified seawater (12.0 to 10.6 Ma); (2) a shallowing of the thermocline and an increasing of upwelling (10.6 to 9.8 Ma); (3) significant inflow of warm water to the eastern tropical Pacific caused by an intensified Northern Equatorial Countercurrent (NECC), resulting in the formation of EPWP (9.8 to 4.2 Ma); and (4) the reduction of the EPWP and the NECC, and an increase in upwelling (4.2 to 0 Ma). The timing of these paleoceanographic events indicated the strong relations with the opening and closing of the Indonesian and Central American (Panama) Seaways. The reduction of the EPWP (this study) and the deepening of the thermocline in western Pacific at about 4.2 Ma (Cannariato and Ravelo, 1997; Chaisson and Ravelo, 2000) indicated a change from a state resembling El Niño in the late Miocene and the early Pliocene time to a state resembling La Niña by the late Pliocene
description: Sediment depth is given in mcd.
description: Supplement to: Kamikuri, Shin-Ichi; Motoyama, Isao; Nishi, Hiroshi; Iwai, Masao (2009): Evolution of Eastern Pacific Warm Pool and upwelling processes since the middle Miocene based on analysis of radiolarian assemblages: Response to Indonesian and Central American Seaways. Palaeogeography, Palaeoclimatology, Palaeoecology, 280(3-4), 469-479
DOI: 10.1594/pangaea.757200
title: (Table 26) Cleaned VGP latitude, MS and GRA from Site 1218 on corrected rmcd

description: (MS) magnetic susceptibility(GRA) gamma ray attenuation bulk density(VGP) virtual geomagnetic pole
DOI: 10.1594/pangaea.757207
title: (Table 28) Cleaned VGP latitude, MS and GRA from Site 1220 on rmcd

description: (MS) magnetic susceptibility(GRA) gamma ray attenuation bulk density(VGP) virtual geomagnetic pole
DOI: 10.1594/pangaea.693826
title: (Table 2) Neogene radiolarian faunal changes at ODP Hole 186-1151A in the North Pacific
DOI: 10.1594/pangaea.776812
title: (Table T1) Relative abundance of selected radiolarian species from ODP Hole 199-1218A sediments

description: Sediment depth is given in mbsf. All radiolarians were counted under a light microscope with a magnification of 250x until the total exceeded 500. Note that relative abundances do not sum up to 100% per sample.
DOI: 10.1594/pangaea.693836
title: (Appendix 3) Relative abundances of Neogene radiolarians in ODP Hole 186-1151A in the North Pacific
DOI: 10.1594/pangaea.693821
title: (Table 1) Radiolarian events of the late Neogene in ODP Hole 145-887C in the North Pacific
DOI: 10.1594/pangaea.693824
title: (Table 2) Neogene radiolarian faunal changes at ODP Hole 145-884B in the North Pacific
DOI: 10.13020/y5ka-4c47
title: "Match Made In Heaven" Integrated Crop and Livestock Farmers Survey, North Central U.S., 2023-2024

description: This survey is part of the Match Made in Heaven (MMIH) project that seeks to foster re-integration of livestock and grain production systems in the North Central, U.S. Region by generating information on producer production practices, attitudes, and goals. One of the project deliverables were qualitative results from this producer survey which will be used to help guide the development of educational programming and other activities aimed at promoting environmental, economic, and social benefits of integrated livestock and crop systems in the North Central, U.S. Region.
description: Primary data from the integrated crop and livestock survey are available here. Data were generated by a 60-question survey fielded in 2023-2024 to crop and livestock producers by the University of Wisconsin Survey Center (UWSC) using online Qualtrics software and paper questionnaires. Survey results were compiled by the University of Minnesota using Qualtrics software and downloaded into Microsoft Excel for de-identification, cleaning and further analysis. All data was cleaned to remove responses that were less than 90% complete yielding a total of 560 responses. The survey was designed to gather demographic information from all respondents and to allow specific, in-depth questions for different sub-groups of farmers, such as those currently producing "crops only," "livestock only," or "crops + livestock." "Livestock only" farmers were asked about their grazing management and their interest in and attitudes toward partnering with crop farmers to graze cover crops, crop aftermath or rent land for pasture. Likewise, "crop only" farmers were asked about their interest in and attitudes toward incorporating livestock enterprises into their operations, allowing livestock farmers to graze cover crops or crop aftermath, or incorporating harvested forage crops into their crop rotations. Both groups were asked about incentives, market and processing availability, and policies related to adoption of these practices.
DOI: 10.1594/pangaea.757197
title: (Table 23) Cleaned MS and GRA from Site U1332 on revised CCSF-A

description: (MS) magnetic susceptibility(GRA) gamma ray attenuation bulk density
DOI: 10.1594/pangaea.757211
title: (Table 29 and Table 30) Correlation tie points between sites of Leg 199 and Expedition 320
DOI: 10.21227/j767-nv83
title: POWER

description: This dataset mainly involves workers performing tasks on utility poles during power outages. The dataset contains 2,011 videos captured under various lighting and filming conditions, documenting power outage operations. It includes five types of actions: climbing, voltage testing, grounding wire installation, grounding wire removal, and descending from the pole, totaling 4,696 action instances. The average length of each instance is 66 seconds, and the total duration of all videos is 430 hours.The dataset consists of 2 components: pre-extracted features and annotation file. Due to the company's confidentiality regulations, we do not provide the original video. The uploaded dataset is a subset of the entire dataset. If you need complete data, please contact us menglingwen_gpg@163.com
DOI: 10.1594/pangaea.757156
title: (Table 22) Cleaned splice MS and GRA from Site U1331 on revised CCSF-A

description: (MS) magnetic susceptibility(GRA) gamma ray attenuation bulk density
DOI: 10.1594/pangaea.954767
title: Size fraction &gt;150 µm determination of sediment core LV76-21

description: Sediment for IRD determination was sampled from 1 cm-thick slices with steps of 2–4 cm through the core. Samples with a dry weight of approximately 10 g were wet sieved using a 150 μm and 63 μm sieves. Coarse fraction &gt;150 μm was decarbonized using 10% HCl, washed using distilled water, and dried. The ratio of weight percentage for the decarbonized coarse fraction (150–2,000 µm) relative to the weight of the dried bulk sediment were used as IRD. This is consistent with the commonly used size fraction &gt; 150 μm for delimiting IRD (Hemming, 2004). Data in the intervals of the visible tephra layers were excluded from the IRD record because this material was delivered into sediment through the atmosphere, rather than by ice and, therefore, is not IRD. Need to understand that the nearby Kamchatka peninsula is area of active volcanism. Therefore, the determined IRD values (wt % of decarbonated fraction 150-2,000 µm) may include as terrigenous particles as volcanic particles, which were earlier fallout of the land during explosive volcanic eruptions, captured by sea ice and icebergs from the coast and land and then transferred into core location by water currents.
DOI: 10.1594/pangaea.954768
title: Size fraction &gt;63 µm determination of sediment core LV76-21

description: Sediment for IRD determination was sampled from 1 cm-thick slices with steps of 2–4 cm through the core. Samples with a dry weight of approximately 10 g were wet sieved using a 150 μm and 63 μm sieves. Coarse fraction &gt;150 μm was decarbonized using 10% HCl, washed using distilled water, and dried. The ratio of weight percentage for the decarbonized coarse fraction (150–2,000 µm) relative to the weight of the dried bulk sediment were used as IRD. This is consistent with the commonly used size fraction &gt; 150 μm for delimiting IRD (Hemming, 2004). Data in the intervals of the visible tephra layers were excluded from the IRD record because this material was delivered into sediment through the atmosphere, rather than by ice and, therefore, is not IRD. Need to understand that the nearby Kamchatka peninsula is area of active volcanism. Therefore, the determined IRD values (wt % of decarbonated fraction 150-2,000 µm) may include as terrigenous particles as volcanic particles, which were earlier fallout of the land during explosive volcanic eruptions, captured by sea ice and icebergs from the coast and land and then transferred into core location by water currents.
DOI: 10.1594/pangaea.954770
title: Carbon concentration of sediment core LV76-21

description: The total carbon and inorganic carbon (CaCO3) contents were measured in sediment slices of 1 cm thickness with 2 cm resolution using an AN-7529 coulometer (Gorbarenko et al., 1998). The total organic carbon (TOC) content in the sediment was calculated using the difference between the total carbon and inorganic carbon contents.
DOI: 10.1594/pangaea.954771
title: Chlorin concentration of sediment core LV76-21

description: The sediment for chlorin determination was sampled in slices of 1 cm thick with a resolution of 1 cm. Chlorin content is the product of chlorophyll-a transformation in sediments and was measured using a Shimadzu UV-1650PC spectrophotometer according to the method used by (Harris et al., 1996) with modifications by (Zakharkov et al., 2007).
DOI: 10.1594/pangaea.954775
title: Color b* value of sediment core LV76-21

description: The color b* values are widely used as a paleoproductivity proxy for the NW Pacific and its marginal seas (Nürnberg and Tiedemann, 2004; Riethdorf et al., 2013). The color b* index was measured onboard after sediment core splitting at 1 cm resolution using a Konica Minolta CM-700d spectrophotometer.
DOI: 10.1594/pangaea.954776
title: Element concentrations of sediment core LV76-21

description: Nearly 30 mg of sediment was sampled with steps of 1 cm through the core depth for element content analyses. The sediment was compressed into tablets of 5 mm in diameter and 0.13 g×cm^−2 in the surface density following the methods of Phedorin et al. (2007). The concentrations of elements were measured using the method of X-ray fluorescence analysis using synchrotron radiation at the collective station VEPP 3 (Institute of Nuclear Physics, Novosibirsk, Russia) following the method of Piminov et al. (2016). The concentration of Rb and Ti in the sediment is used as an indicator of terrigenous material accumulation in the sediments and V content as proxy of the redox condition at the bottom (Bodin et al., 2007; Colman et al., 1995; Goldberg et al., 2007). Ratio Y/Rb is used as indicator of volcanic material input (Gorbarenko et al., 2014).
DOI: 10.1594/pangaea.954777
title: Stable oxygen isotope record of Neogloboquadrina pachyderma s of sediment core LV76-21

description: Sediments for the δ18O of planktic and benthic foraminifera analysis from core LV76-21 were sampled from 1 cm-thick slices with step of 2–5 cm along the core length. Foraminifera shells were picked from the sediment fractions of 150-250 µm in the samples where they were available. The δ18O of planktic and benthic foraminifera were measured at Tongji University (China) and at the Far Eastern Geological Institute (Russia). Isotope measurements from Tongji University were provided using a Finnigan‐MAT 252 mass spectrometer. The results were validated against a Chinese national carbonate standard (GBW04405) and NBS‐19. The standard deviation is 0.07‰ for δ18O. The isotope measurements from the Far Eastern Geological Institute were analyzed using a Finnigan-MAT 253 mass spectrometer with modification of Velivetskaya et al. (2009) without preliminary roasting. The standard deviation for the δ18O values is ± 0.05‰. All the values are reported on the Pee Dee Belemnite (PDB) scale.
DOI: 10.1594/pangaea.954779
title: Magnetic susceptibility of sediment core LV76-21

description: The sediment magnetic susceptibility (MS) was measured onboard using a Satis Geo KM-7 kappameter at a resolution of 1 cm. Within 2 h after coring, the sediment core was split, and one half of core was used for the MS measurements. Values of the sediment MS are determined by concentration of terrigenous ferromagnetic material and of volcanogenic material as well.
DOI: 10.1594/pangaea.894874
title: Phytoplankton pigment concentration measured by HPLC during POLARSTERN cruise PS99

description: We present a data set on the concentration of various phytoplankton pigments using High Pressure Liquid Chromatography, HPLC during the summer cruises PS99 on R/V POLARSTERN in the Fram Strait.
DOI: 10.1594/pangaea.873153
title: Continuous thermosalinograph oceanography along POLARSTERN cruise track PS99.2 (ARK-XXX/1.2)
DOI: 10.1594/pangaea.885688
title: Absorption line height, chl-a concentration and fraction of major phytoplankton groups on chl-a during POLARSTERN cruise PS99.2 from discrete samples
DOI: 10.1594/pangaea.963611
title: LegacyVegetation: European reconstruction of past plant cover and total tree cover from pollen archives of the last 14 ka

description: This data set presents the reconstructed vegetation cover for 1287 European sites based on harmonized pollen data from the data set LegacyPollen 2.0. Sugita's REVEALS model (2007) was applied to all pollen records using REVEALSinR from the DISQOVER package (Theuerkauf et al. 2016). Pollen counts were translated into vegetation cover by accounting for taxon-specific pollen productivity and fall speed. Additionally, relevant source areas of pollen were calculated using the aforementioned taxon-specific parameters and a Gaussian plume model for deposition and dispersal. Values for relative pollen productivity and fall speed from the synthesis from Wiezcorek and Herzschuh (2010) were updated with recent studies used to reconstruct vegetation cover. The average values from all Northern Hemisphere values were used where taxon-specific continental values were unavailable. As REVEALS was conceived to reconstruct vegetation from large lakes, only records originating from large lakes (&gt;= 50h) are marked as "valid as site" in the dataset. Reconstructions from other records can be used when spatially averaging several together. An example script to do so is provided on Zenodo (https://doi.org/10.5281/zenodo.12800290). Reconstructed tree cover was validated using modern Landsat remote sensing forest cover. Reconstructed tree cover has much lower errors than the original arboreal pollen percentages. Reconstructions of individual taxa are more uncertain. We present tables with reconstructed vegetation cover for all continents with original parameters. As further details, we list a table with the taxon-specific parameters used, metadata for all records, and a list of parameters adjusted in the default version of REVEALSinR.
DOI: 10.1594/pangaea.963612
title: LegacyVegetation: North American reconstruction of past plant cover and total tree cover from pollen archives of the last 14 ka

description: This data set presents the reconstructed vegetation cover for 1040 North American sites based on harmonized pollen data from the data set LegacyPollen 2.0. Sugita's REVEALS model (2007) was applied to all pollen records using REVEALSinR from the DISQOVER package (Theuerkauf et al. 2016). Pollen counts were translated into vegetation cover by accounting for taxon-specific pollen productivity and fall speed. Additionally, relevant source areas of pollen were calculated using the aforementioned taxon-specific parameters and a Gaussian plume model for deposition and dispersal. Values for relative pollen productivity and fall speed from the synthesis from Wiezcorek and Herzschuh (2010) were updated with recent studies used to reconstruct vegetation cover. The average values from all Northern Hemisphere values were used where taxon-specific continental values were unavailable. As REVEALS was conceived to reconstruct vegetation from large lakes, only records originating from large lakes (&gt;= 50h) are marked as "valid as site" in the dataset. Reconstructions from other records can be used when spatially averaging several together. An example script to do so is provided on Zenodo (https://doi.org/10.5281/zenodo.12800290). Reconstructed tree cover was validated using modern Landsat remote sensing forest cover. Reconstructed tree cover has much lower errors than the original arboreal pollen percentages. Reconstructions of individual taxa are more uncertain. We present tables with reconstructed vegetation cover for all continents with original parameters. As further details, we list a table with the taxon-specific parameters used, metadata for all records, and a list of parameters adjusted in the default version of REVEALSinR.
DOI: 10.1594/pangaea.894860
title: Phytoplankton pigment concentration measured by HPLC during POLARSTERN cruise PS107

description: We present a data set on the concentration of various phytoplankton pigments using High Pressure Liquid Chromatography, HPLC during the summer cruises PS107 on R/V POLARSTERN in the Fram Strait.
DOI: 10.1594/pangaea.971932
title: Foraminiferal Assemblages at Ross Ice Shelf Project (RISP) Site J-9, Ross Sea, Antarctica

description: This dataset contains Miocene and Holocene foraminiferal population counts from the Ross Sea, Antarctica. In 1977–1978 and 1978–1979, the Ross Ice Shelf Project (RISP) recovered sediments from beneath the largest ice shelf in Antarctica at Site J-9 (82° S, 168° W), ~450 km from open marine waters at the calving front of the Ross Ice Shelf and ~890 km from the South Pole, one of the southernmost sites for marine sediment recovery in Antarctica. The samples are divided into a thin, unconsolidated upper unit (up to 20 cm thick) and a texturally similar but compacted lower unit (&gt; 1m thick) containing reworked early, middle, and late Miocene diatom and calcareous benthic foraminiferal assemblages. A probable post-Last Glacial Maximum (LGM) disconformity separates the upper unit containing a dominantly agglutinated foraminiferal assemblage, from the lower unit consisting mostly of reworked Miocene calcareous benthic species. Three different sample types are noted: SC = sphincter core samples, CC = Core Catcher samples, int = interval samples. Species that are age diagnostic are noted in the species list and support a late Miocene age for the lower unit. All foraminifera were collected from the greater than 63 µm size fraction, in which the full floated material was examined.
DOI: 10.1594/pangaea.974461
title: 2023 myThaw data set

description: The 2023 myThaw data set provides standardized measurements for permafrost thaw and the linked parameters snow depth, vegetation height and water level as suggested by Boike et al. (2021). It contains measurements from 8 circumpolar permafrost sites where data was obtained using the myThaw app which is based on the user-friendly, multiparameter protocol for standardized monitoring of permafrost thaw from 2021. The data set contains detailed metadata for each site including data on the timing of data collection, geographical coordinates and land surface characteristics (vegetation, ground surface and water features).
DOI: 10.1594/pangaea.974858
title: Meteorological synoptical observations from station Syowa (2024-10)
DOI: 10.1594/pangaea.974860
title: Radiosonde measurements from station Syowa (2024-10)

description: iMS is short for iMS-100
DOI: 10.1594/pangaea.974861
title: Radiosonde measurements from station Syowa (2024-12)

description: iMS is short for iMS-100
DOI: 10.1594/pangaea.974862
title: Meteorological synoptical observations from station Syowa (2024-12)
DOI: 10.1594/pangaea.974863
title: Meteorological synoptical observations from station Syowa (2024-11)
DOI: 10.1594/pangaea.974864
title: Radiosonde measurements from station Syowa (2024-11)

description: iMS is short for iMS-100
DOI: 10.1594/pangaea.974865
title: Basic and other measurements of radiation at station Syowa (2024-10)
DOI: 10.1594/pangaea.974866
title: Basic and other measurements of radiation at station Syowa (2024-12)
DOI: 10.1594/pangaea.974867
title: Basic and other measurements of radiation at station Syowa (2024-11)
DOI: 10.15468/dl.yh3yza
title: Occurrence Download

description: A dataset containing 870940 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Acer pseudoplatanus L.)",
 "BasisOfRecord is one of (Specimen, Human Observation, Observation, Living Specimen, Machine Observation, Literature Occurrence)",
 "Geometry POLYGON((-180 -90,180 -90,180 90,-180 90,-180 -90))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1945"
 ]
}

 The dataset includes 870940 records from 2332 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000310-250227182430271/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15156/bio/sh1060802.10fu
title: SH1060802.10FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.
DOI: 10.15156/bio/sh1060803.10fu
title: SH1060803.10FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.