cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.974332
title: Daily observed, modelled, and infilled river flows for an Irish hydrometric reference network of river flow stations

description: Here we present a dataset of observed, modelled, and infilled daily river flow data relating to the newly updated Irish Hydrometric Reference Network (IHRN) of high-quality gauging stations located across the Republic of Ireland. Internationally applied selection criteria, analysis of historical observations and flow gauge metadata, stakeholder feedback, and trend assessments aided in the identification of the network's 51 stations. A combination of the GR4J conceptual hydrological model and a backpropagation neural network driven by catchment specific precipitation and temperature extracted from gridded datasets was used to model flows that subsequently infilled gaps in the observational record for each of the series (from commencement of each station's record till the end of 2022). Also included are the 2.5 and 97.5 quantile values for each station's modelled data, which represent the upper and lower uncertainty bounds of the respective ensemble flows derived during the flow generation process. As well as providing a useful means for evaluating the impact of changing climatic conditions on Irish catchments, the IHRN data offers utility for assessing catchment based impacts for flow extremes, and the generation of both historical reconstructions and future climate projections for a range of flow regimes across the island of Ireland.
description: This dataset has been carefully reviewed and curated in accordance with PANGAEA's exceptionally high quality standards. However, due to discontinued communication from the authors' side, it did not receive the usual formal approval by the authors and therefore lacks final scientific validation.
DOI: 10.25549/uschist-ouc18874280
title: Daily Trojan, vol. 39, no. 91, Mar 3, 1948

description: Southern California Daily Trojan, vol. 39, no. 91, March 3, 1948.
DOI: 10.1594/pangaea.974710
title: Foraminiferal I/Ca Measurements from Miocene Sediments

description: The foraminiferal iodine-to-calcium proxy (I/Ca) can be used to reconstruct regional iodine speciation and redox conditions. This dataset contains new foraminiferal I/Ca measurements from Miocene sediments samples from ODP Site 202-1237, ODP Site 154-926, IODP Site 321-U1337 and IODP Site 321-U1338. These samples overlap with the climate event known as the Miocene Climatic Optimum. The aim of this work is to examine the geography of oxygen deficient zones in the tropical Pacific and Atlantic Oceans during the mid-Miocene.This dataset has been carefully reviewed and curated in accordance with PANGAEA's exceptionally high quality standards. However, due to discontinued communication from the authors' side, it did not receive the usual formal approval by the authors and therefore lacks final scientific validation.
DOI: 10.1594/pangaea.980772
title: Terrestrial laser scanning point cloud for ten glaciers in High Mountain Asia from 2017 to 2018

description: We used the Riegl VZ-6000 terrestrial laser scanning to perform annual geodetic surveys at 2-4 scan positions situated in the stable terrain area. The GNSS was used to survey three-dimensional coordinates for these scan positions with the system of WGS84 datum and we then produced dense point clouds of the investigated glacier surfaces using RiSCAN PRO® v 2.14.1.The procedures for point cloud processing included direct georeferencing, data registration, data compression, data filtering and interpolation. The processed layers in 2017 were considered as the reference, and the co-registration of the two consecutive layers for the ten glaciers was finished by using the iterative closest point algorithms via RiSCAN PRO® v 2.14.1.
description: File descriptions: Each file is named as glacier name. 2017 and 2018 in each file are the Riegl VZ-6000 terrestrial laser scanning survey years. The format of point cloud data is Las.This dataset has been carefully reviewed and curated in accordance with PANGAEA's exceptionally high quality standards. However, due to discontinued communication from the authors' side, it did not receive the usual formal approval by the authors and therefore lacks final scientific validation.
DOI: 10.1594/pangaea.981774
title: Video In Situ Snowfall Sensor (VISSS) data for Ny-Ålesund on 2024-10-29

description: The VISSS is a camera system recording precipitating snowfall from two perspectives. Here, movies and images of falling precipitation particles are provided for one day at station Ny-Ålesund. For further details on the VISSS see Maahn et al. (2024).
DOI: 10.25549/uschist-ouc18876112
title: Daily Trojan, vol. 39, no. 105, Mar 23, 1948

description: Southern California Daily Trojan, vol. 39, no. 105, March 23, 1948.
DOI: 10.1594/pangaea.981777
title: Video In Situ Snowfall Sensor (VISSS) data for Ny-Ålesund on 2024-10-28

description: The VISSS is a camera system recording precipitating snowfall from two perspectives. Here, movies and images of falling precipitation particles are provided for one day at station Ny-Ålesund. For further details on the VISSS see Maahn et al. (2024).
DOI: 10.1594/pangaea.981786
title: Video In Situ Snowfall Sensor (VISSS) data for Ny-Ålesund on 2024-10-27

description: The VISSS is a camera system recording precipitating snowfall from two perspectives. Here, movies and images of falling precipitation particles are provided for one day at station Ny-Ålesund. For further details on the VISSS see Maahn et al. (2024).
DOI: 10.1594/pangaea.981790
title: Video In Situ Snowfall Sensor (VISSS) data for Ny-Ålesund on 2024-11-02

description: The VISSS is a camera system recording precipitating snowfall from two perspectives. Here, movies and images of falling precipitation particles are provided for one day at station Ny-Ålesund. For further details on the VISSS see Maahn et al. (2024).
DOI: 10.1594/pangaea.982494
title: Nilaoba12345/BOEM: Global Database for Naturally Occurring Radionuclides associated with offshore Oil and Gas Production

description: This study compiles a comprehensive dataset on the occurrence, distribution, and potential impacts of Technologically Enhanced Naturally Occurring Radionuclides (TENORMs) near offshore oil and gas platforms. It encompasses data derived from various environmental matrices, including activities (Bq/l) and exposure levels (Msv), with particular emphasis on petroleum products and waste, such as produced water, scales, and sludges. The dataset aims to contribute to a better understanding of the distribution of TENORMs in marine environments, as well as inform future radiological safety norms, contribute to the formulation of regulatory policies, and facilitate the design of mitigation strategies. The information, covering literature and datasets spanning five continents over the past 70 years, has been organized to enable intuitive inquiries, making it a useful resource for policymakers and academics.
description: This dataset has been carefully reviewed and curated in accordance with PANGAEA's exceptionally high quality standards. However, due to discontinued communication from the authors' side, it did not receive the usual formal approval by the authors and therefore lacks final scientific validation.
DOI: 10.25549/uschist-ouc18915891
title: Daily Trojan, vol. 39, no. 111, Apr 5, 1948

description: Southern California Daily Trojan, vol. 39, no. 111, April 5, 1948. This exemplar lacks page 4.
DOI: 10.1594/pangaea.982934
title: δ18O and δ13C from sediment core of Lake Alchichica in Mexico

description: The proxy data are measured from a 57-cm long sediment core collected from Lake Alchichica (19° 24' 38 N, 97° 24' 14 W, 2322 masl) at a water depth of ~ 60 m using a Uwitec® coring device equipped with a 9-cm coring tube. The core was split lengthwise, analyzed using XRF core scanning, and subsampled. A Bayesian chronology was created using 210Pb data and three 14C dates. For stable isotope geochemistry (δ¹⁸O and δ¹³C) of bulk sediments, samples collected at 1 cm intervals were analyzed at MARUM, University of Bremen, using a Finnigan MAT252 mass spectrometer with a Kiel III carbonate preparation device. Results are reported in delta notation (δ) relative to VPDB. Calibration involved a house standard (Solnhofen limestone) referenced to NBS 19 calcite, with standard deviations of 0.06‰ for both δ¹³C and δ¹⁸O.
DOI: 10.1594/pangaea.982935
title: δ Deuterium leaf wax isotopes from sediment core of Lake Alchichica in Mexico

description: The isotope analyses were performed on subsamples from a 57-cm-long sediment core retrieved from Lake Alchichica (19° 24' 38 N, 97° 24' 14 W, 2322 masl) at a water depth of ~ 60 m using a Uwitec® coring device equipped with a 9-cm coring tube. n-alkanes were extracted from 20 dried samples (1.3–2.8 g) using DCM:MeOH (9:1) in a DIONEX ASE-200 at 100°C and 1000 psi for 5 minutes, repeated thrice, with squalane as an internal standard. Lipid extracts were concentrated under N₂, treated with activated copper to remove sulfur, and saponified with 6% KOH in MeOH at 80°C for 2 hours. Hydrocarbons, ketones, and alcohols were extracted with hexane, and non-polar hydrocarbons were isolated using silica gel and silver nitrate-silica columns. Saturated fractions were analyzed by GC/FID at MARUM, University of Bremen, with retention time comparison for compound identification and &lt;5% quantification precision.
DOI: 10.25549/uschist-ouc18952400
title: Daily Trojan, vol. 39, no. 114, Apr 8, 1948

description: Southern California Daily Trojan, vol. 39, no. 114, April 8, 1948.
DOI: 10.1594/pangaea.982936
title: Mineral composition from sediment core of Lake Alchichica in Mexico

description: The mineralogical data were measured from a 57-cm-long sediment core retrieved from Lake Alchichica (19° 24' 38 N, 97° 24' 14 W, 2322 masl) at a water depth of ~ 60 m using a Uwitec® coring device equipped with a 9-cm coring tube. Forty freeze-dried ground samples weighing ~0.5 g were sieved through a 150 µm mesh and transferred to a plastic holder using the backside method and scanned from 2 to 70◦ 2θ with a step size of 0.009◦2θ and 0.5 s per step. The analysis was performed using a Bruker® D8-Advance Eco diffractometer (CuKα radiation, λ = 1.5418 Å, 40 kV, 25 mA) coupled with a Lynxeye XE detector (AGEs Laboratory, University of Liège). Mineral identification and quantification were done using the EVA (v4.3) and TOPAS (v5.0) ® Bruker software, respectively. A Rietveld refinement was applied to all the minerals identified by XRD. Unit cell parameters and preferred orientations of the mineral phases were adjusted to obtain a reconstructed XRD pattern as close to the measured pattern.
DOI: 10.1594/pangaea.982945
title: X-ray Fluorescence (XRF) core scanning from sediment core of Lake Alchichica in Mexico

description: The geochemical data were measured from a 57-cm-long sediment core retrieved from Lake Alchichica (19° 24' 38 N, 97° 24' 14 W, 2322 masl) at a water depth of ~ 60 m using a Uwitec® coring device equipped with a 9-cm coring tube. Geochemical compositions of the sediment core were analyzed using an ITRAX X-ray fluorescence core scanner (CS-XRF) at the INRS Centre Eau Terre Environnement in Canada. The analysis produced the ratio of Compton (incoherent) to Rayleigh (coherent) scattering (Inc/Coh), which can serve as an indicator of sediment organic content. The scans were measured at 2 mm intervals using 20 kV with a current of 10 mA and a dwell time of 20 seconds. To reduce matrix effects and address the closed-sum issue, elemental intensities (measured in counts per second) were transformed using the centered log-ratio (clr) method. For better visualization, all elemental data were subjected to min-max normalization.
DOI: 10.25549/uschist-ouc18952826
title: Daily Trojan, vol. 39, no. 118, Apr 14, 1948

description: Southern California Daily Trojan, vol. 39, no. 118, April 14, 1948.
DOI: 10.1594/pangaea.982949
title: Pollen determination from sediment core of Lake Alchichica in Mexico

description: The pollen samples were collected from a 57-cm-long sediment core retrieved from Lake Alchichica (19° 24' 38 N, 97° 24' 14 W, 2322 masl) at a water depth of ~ 60 m using a Uwitec® coring device equipped with a 9-cm coring tube. A total of 39 wet sediment samples (1 cm³ each) were processed for pollen analysis at the Department of Geology, University of Liège, following standard acid digestion procedures. These included treatments with 10% HCl, 37% HF, acetolysis, and sieving through a 10 µm mesh. Pollen counts were performed at 400× magnification using a Zeiss microscope, with a minimum of 300 terrestrial pollen grains counted per sample.
DOI: 10.1594/pangaea.982951
title: Gray value determination from sediment core of Lake Alchichica in Mexico

description: The grey values were measured from a 57-cm-long sediment core retrieved from Lake Alchichica (19° 24' 38 N, 97° 24' 14 W, 2322 masl) at a water depth of ~ 60 m using a Uwitec® coring device equipped with a 9-cm coring tube. The core structure was revealed by a Siemens Somatom Definition +128 CT-scanner at the INRS Centre Eau Terre Environnement with a 0.31 mm resolution in the stratigraphic direction. Grey levels are expressed in Hounsfield units (HU): light (dark) grey levels represent dense (light) sediments. The analysis was performed at the INRS Centre Eau Terre Environnement in Canada.
DOI: 10.1594/pangaea.982975
title: BPCA-derived pyrogenic carbon, microscopic charcoal, and TOC in a sediment core from Lake EN21402 (Yakutia, Siberia)

description: Records of benzene polycarboxylic acids (BPCAs), microscopic charcoal, and organic carbon of sediment core EN21402-4 from Lake EN21402 in eastern Yakutia. This data was used for the reconstruction of fire dynamics (biomass burning, fire intensity) over the past c. 5000 years. BPCAs were prepared from freeze-dried, homogenized lake sediment samples by nitric acid oxidation and measured in a high-performance liquid chromatograph. They are reported here as the concentration of the complete BPCAs (µM), as relative data, and as concentration of pyrogenic carbon (mgC) per gram of dry sediment, based on the sum of B5CA and B6CA. Microscopic charcoal particles (&lt;150 µm) were counted on pollen slides together with marker spores to establish charcoal particle concentrations reported here. Total organic carbon (TOC) was measured in dried and homogenized bulk sediment samples using a soliTOC cube analyzer. The sediment core was obtained during fieldwork in August 2021, jointly organized by the Alfred Wegener Institute and the North-Eastern Federal University of Yakutsk. More information about the data can be found in the corresponding research paper (Glückler et al., in preparation). A comprehensive description of fieldwork in 2021 is available in the corresponding expedition report (Morgenstern et al., 2023).
DOI: 10.1594/pangaea.982980
title: BPCA-derived pyrogenic carbon, microscopic charcoal, and TOC in a sediment core from Lake EN21437 (Yakutia, Siberia)

description: Records of benzene polycarboxylic acids (BPCAs), microscopic charcoal, and organic carbon of sediment core EN21437-1 from Lake EN21437 in central Yakutia. This data was used for the reconstruction of fire dynamics (biomass burning, fire intensity) over the past c. 7600 years. BPCAs were prepared from freeze-dried, homogenized lake sediment samples by nitric acid oxidation and measured in a high-performance liquid chromatograph. They are reported here as the concentration of the complete BPCAs (µM), as relative data, and as concentration of pyrogenic carbon (mgC) per gram of dry sediment, based on the sum of B5CA and B6CA. Microscopic charcoal particles (&lt;150 µm) were counted on pollen slides together with marker spores to establish charcoal particle concentrations reported here. Total organic carbon (TOC) was measured in dried and homogenized bulk sediment samples using a soliTOC cube analyzer. The sediment core was obtained during fieldwork in August 2021, jointly organized by the Alfred Wegener Institute and the North-Eastern Federal University of Yakutsk. More information about the data can be found in the corresponding research paper (Glückler et al., in preparation). A comprehensive description of fieldwork in 2021 is available in the corresponding expedition report (Morgenstern et al., 2023).
DOI: 10.25549/uschist-ouc18953007
title: Daily Trojan, vol. 39, no. 119, Apr 15, 1948

description: Southern California Daily Trojan, vol. 39, no. 119, April 15, 1948.
DOI: 10.1594/pangaea.982981
title: BPCA-derived pyrogenic carbon from lake surface sediments in Yakutia, Siberia

description: Records of benzene polycarboxylic acids (BPCAs) from lake surface sediments in central and eastern Yakutia. This data was used for the evaluation of fire dynamics (biomass burning, fire intensity). BPCAs were prepared from freeze-dried, homogenized lake sediment samples by nitric acid oxidation and measured in a high-performance liquid chromatograph. They are reported here as the concentration of the complete BPCAs (µM), as relative data, and as concentration of pyrogenic carbon (mgC) per gram of dry sediment, based on the sum of B5CA and B6CA. The surface sediments were obtained during fieldwork in August 2021, jointly organized by the Alfred Wegener Institute and the North-Eastern Federal University of Yakutsk. More information about the data can be found in the corresponding research paper (Glückler et al., in preparation). A comprehensive description of fieldwork in 2021 is available in the corresponding expedition report (Morgenstern et al., 2023).
DOI: 10.1594/pangaea.983363
title: Low resolution Mg/Ca on planktonic foraminiferal calcite from MD96-2048 (Pleistocene) - T. sacculifer

description: This study was conducted to evaluate discrepancies between SST proxies and to assess their sensitivity to oceanographic changes. These data contribute to improved proxy interpretation, particularly for paleoceanographic reconstructions in subtropical ocean settings. This dataset provides sea surface temperature (SST) reconstructions over the past 1.25 million years from sediment core MD96-2048, collected at 660 m water depth near Delagoa Bight in the southwestern Indian Ocean (26°10.482′S, 34°01.148′E) during the Marion Dufresne MD104 cruise. The dataset includes Mg/Ca ratios geochemical records from planktonic foraminifera, presented at low resolutions (10 datapoints). Mg/Ca analyses were conducted on Trilobatus sacculifer (new data presented here), and compared with Mg/Ca on Globigerinoides ruber (published by Caley et al., 2011; doi:10.5194/cp-7-1285-2011) using inductively coupled plasma optical emission spectrometry (ICP-OES). Clumped isotope measurements were performed on G. ruber and are available in the EarthChem dataset. The age model is based on benthic foraminiferal δ¹⁸O stratigraphy from the same core (Caley et al., 2011, doi:10.5194/cp-7-1285-2011). The dataset spans the Quaternary period, with temporal coverage from 0 to 1.25 million years before present. Sampling resolution for Mg/Ca of T. sacculifer is very low (10 datapoints over the last 1.25 Ma), allowing for investigation of differences between Mg/Ca and clumped isotopes.SSTs were primarily calculated using the T. sacculifer Mg/Ca–temperature calibration from Anand et al. (2003, doi:10.1029/2002PA000846), applying the equation with the constant A assumed for this morphotype (with sac). To account for salinity-related biases in Mg/Ca, calibration adjustments based on Gray and Evans (2019, doi:10.1029/2018PA003517) were also incorporated. Data are provided as tabulated time series of raw geochemical measurements and calculated SST estimates.
DOI: 10.1594/pangaea.983605
title: Timeslices of deep ocean carbon isotope gradients

description: This dataset has been carefully reviewed and curated in accordance with PANGAEA's exceptionally high quality standards. However, due to discontinued communication from the authors' side, it did not receive the usual formal approval by the authors and therefore lacks final scientific validation.
DOI: 10.25549/uschist-ouc18953815
title: Daily Trojan, vol. 39, no. 125, Apr 23, 1948

description: Southern California Daily Trojan, vol. 39, no. 125, April 23, 1948.
DOI: 10.1594/pangaea.983607
title: Mean stable carbon isotope gradient between North Pacific and North Atlantic

description: This dataset has been carefully reviewed and curated in accordance with PANGAEA's exceptionally high quality standards. However, due to discontinued communication from the authors' side, it did not receive the usual formal approval by the authors and therefore lacks final scientific validation.
DOI: 10.1594/pangaea.983608
title: Timeseries of binned benthic stable carbon isotope from ODP Site 162-982,130-807 and IODP Site 306-U1313

description: This dataset has been carefully reviewed and curated in accordance with PANGAEA's exceptionally high quality standards. However, due to discontinued communication from the authors' side, it did not receive the usual formal approval by the authors and therefore lacks final scientific validation.
DOI: 10.1594/pangaea.983610
title: Quaternary trace metals data from ODP Site 198-1208

description: This dataset has been carefully reviewed and curated in accordance with PANGAEA's exceptionally high quality standards. However, due to discontinued communication from the authors' side, it did not receive the usual formal approval by the authors and therefore lacks final scientific validation.
DOI: 10.25549/uschist-ouc19032228
title: Daily Trojan, vol. 39, no. 134, May 6, 1948

description: Southern California Daily Trojan, vol. 39, no. 134, May 6, 1948.
DOI: 10.1594/pangaea.983611
title: Pliocene trace metals data from ODP Site 198-1208

description: This dataset has been carefully reviewed and curated in accordance with PANGAEA's exceptionally high quality standards. However, due to discontinued communication from the authors' side, it did not receive the usual formal approval by the authors and therefore lacks final scientific validation.
DOI: 10.1594/pangaea.983746
title: Leaf SPAD and Chlorophyll content of native and non-native temperate deciduous shrubs 2018-2025

description: During the autumn senescence period in years 2018, 2019, 2020, 2021, 2023 and 2024 we used a chlorophyll meter (Konica-Minolta, Japan, SPAD-502) to collect SPAD values from 5 replicate leaves of 5 native (Ribes americanum Wild currant; Prunus virginiana Chokecherry; Euonymus atropurpureus Eastern wahoo or Burning bush (added in 2020); Viburnum lentago Nannyberry; Cornus alternifolia Pagoda dogwood; ) and 4 non-native (Lonicera morrowii Honeysuckle; Rhamnus cathartica Common Buckthorn; Ligustrum vulgare European privet; Viburnum opulus European highbush cranberry) temperate deciduous shrub species growing in Downer Woods - a small urban woodlot on the campus of the University of Wisconsin-Milwaukee, USA. SPAD values were recorded at least twice weekly on all species when leaves were present. On each occasion SPAD readings were recorded at the same location on each of five leaves from 2 to 7 replicate plants of each species. SPAD values were converted to leaf chlorophyll using calibration equations from a previous study (Donnelly et al. 2020, doi:10.1007/s13595-020-00940-6).
DOI: 10.25549/uschist-ouc19034534
title: Daily Trojan, vol. 39, no. 146, May 24, 1948

description: Southern California Daily Trojan, vol. 39, no. 146, May 24, 1948.