cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.836934
title: Properties of seawater from a Sea-Bird TSG temperature and conductivity sensor mounted on the continuous surface water sampling system during campaign TARA_20091111Z of the Tara Oceans expedition 2009-2013

description: The Tara Oceans Expedition (2009-2013) sampled the world oceans on board a 36 m long schooner, collecting environmental data and organisms from viruses to planktonic metazoans for later analyses using modern sequencing and state-of-the-art imaging technologies. Tara Oceans Data are particularly suited to study the genetic, morphological and functional diversity of plankton. The present data publication contains measurements from the Continuous Surface Sampling System [CSSS] made during one campaign of the Tara Oceans Expedition. Water was pumped at the front of the vessel from ~2m depth, then de-bubbled and circulated to a Sea-Bird TSG temperature and conductivity sensor. System maintenance (instrument cleaning, flushing) was done approximately once a week and in port between successive legs. All data were stamped with a GPS.
DOI: 10.1594/pangaea.748144
title: Hydrography on standard level calculated from water bottle samples of RV Lesnoi from 1963 to 1976
DOI: 10.1594/pangaea.882605
title: Mapping the main vegetation types of Cerrado biome in the year 2000, link to GIS files

description: This data set include 17 shapefiles that form a map of woodlands, shrublands and grasslands of the Cerrado biome in the year 2000, based on Landsat images at 30 meter spatial resolution. We use a map of anthropic areas and water bodies as a mask for mapping. Both vegetation types map and mask were prepared within the scope of the "Prevention, Control and Monitoring of Irregular Burnings and Forest Fires in the Cerrado" Project.After registering and applying contrast in the 118 images that cover the biome, Linear Models of Spectral Mixture were generated and, from the vegetation fraction, the thresholds of three formations defined for each image. The method of classification was the slicing of images. After the slicing procedures, the classified images were vectorized and their features smoothed, visually inspected and edited manually.In addition to the woodlands, shrublands and grasslands classes, the map included areas not observed due to the presence of clouds and their shadows.The results show in a spatially explicit way the distribution of the areas covered with natural vegetation in the year 2000, their relation with the total area of biome and how it is divided in the three main types of vegetation.
DOI: 10.1594/pangaea.694255
title: Nutrient concentrations in water samples from the Aegean Sea at Station MAY-1997-IR39
DOI: 10.1594/pangaea.736248
title: Meteorological synoptical observations from station Lindenberg (2000-07)
DOI: 10.1594/pangaea.545134
title: Physical oceanography at CTD station Chip_2003-08-21_14, Chipana, Chile
DOI: 10.1594/pangaea.497594
title: Physical oceanography from BT during cruise U58GS01908B_1979
DOI: 10.1594/pangaea.910937
title: Video - O2, pH and CO2 dynamics around a root of the salt marsh plant; Spartina anglica, during light and dark alternations

description: Video of O2, pH and CO2 dynamics around a root of the salt marsh plant; Spartina anglica, during light and dark alternations. The 2D distribution of O2, pH and CO2 was recorded during a light (12h)-dark (12h)-light (12h)-dark (12h) interval using the Planar optode system; VisiSens TD from PreSens - Precision Sensing GmbH, Regensburg, Germany. The 2D distribution of O2, pH and CO2 was recorded as single images at 10min intervals. Subsequently, the images were compiled to a video.
DOI: 10.1594/pangaea.745687
title: Echinoderms in surface sediments off Sylt collected during HEINCKE cruise HE241

description: Sample area: 0.02 m**2
DOI: 10.1594/pangaea.848773
title: MorphCol 2004-2013. A collection of Fortran 77 programs for morphometry

description: This is a technical description in html format of simple fortran programs for Macintosh for the morphometric analysis of tests planktonic foraminifera under reflected light, with special focus on the Neogene group of Globorotalia menardii. The second part of this report gives information and performance tests about the development of AMOR (Automated Measurement system for the mORphometry of microfossils). AMOR is Windows based and helps to orientate and collect digital images of menardiform globorotalids. The above fortran programs may be useful to extract and analyze some morphometric parameters from images collected with AMOR. After unzipping the archive file please open the Start.html file using a common web browser like firefox.In case of any questions or problems, please contact Michael W. Knappertsbusch (mailto:michael.knappertsbusch@unibas.ch).
DOI: 10.1594/pangaea.915124
title: Radiosonde raw data from tandem soundings at Neumayer Station (2020-01), links to files

description: At Neumayer station the transition of sonde type from Vaisala RS92-SGP to RS41-SGP is controlled by tandem soundings starting in July 2018. Each file in this dataset was acquired together with the corresponding data file in doi:10.1594/PANGAEA.915093.
DOI: 10.1594/pangaea.913218
title: Synthetic and real data used for testing the probabilistic tremor location method

description: The materials in this archive are organized as follows:1) "katla" directory contains: - the processed seismograms (local earthquakes removed, decimated to a sampling rate of 10 Hz) in the "seismograms" directory - the correlation envelopes used in the real-data example (tremor at Katla volcano) in the "covariograms" directory - the MATLAB scripts to generate the correlation envelopes from the processed seismograms2) "synthetic" directory contains: - the MATLAB scripts to generate synthetic data used in the synthetic tests
DOI: 10.1594/pangaea.854710
title: Vernagt - Studentisches Medienprojekt zur Internationalen REKLIM Konferenz in Kooperation mit der DEKRA-Hochschule Berlin, Links zum Dokumentarfilm in unterschiedlichen Auflösungen

description: Durch die steigende Temperatur auf unserem Planeten schmelzen überall Gletscher. Die Konsequenzen werden letztendlich die Menschen tragen müssen. Doch die ersten Opfer sind die Gletscher selber. Einer dieser sich verändernden Gletscher ist der Vernagtferner in den Ötztaler Alpen. Der Rückgang ist stetig. Der Vergleich des heutigen Zustands des Vernagtferners mit Aufnahmen von vor hundert Jahren ist ernüchternd: Statt ganzjähriger Eismassen wird es bald nur noch Geröll und Schutt geben. Jahr für Jahr fließt mehr Schmelzwasser ins Tal. Seit 1601 wird der Gletscher von Wissenschaftlern untersucht.
description: Film in Deutsch, 25 min., Buch & Regie: Yamina Lourghi und Max Poehlke, mit: Dr. Ludwig Braun und Amelie Lindmayer, Deutschland 2014, http://reklim-medienprojekt.de
DOI: 10.1594/pangaea.909230
title: A United States national database of stream confluence landscape characteristics

description: Although rarely studied, stream confluences may be biological hotspots within fluvial networks and the surrounding landscape. To invigorate study of the ecological value and role of stream confluences in fluvial networks, we have produced a database of stream confluences and their associated watershed attributes for the conterminous United States. The database includes 1,085,629 stream confluences and 383 attributes for each confluence that are organized into 15 database tables for both tributary and mainstem upstream catchments ("local" watersheds) and watersheds. Themes represented by the database tables include hydrology (e.g., headwater or not), land cover and land cover change, geology (e.g., sodium content of underlying lithosphere), physical condition (e.g., elevation), measures of ecological integrity, and stressors (e.g., impaired streams). We also used the measures of ecological integrity to assess the condition of the stream confluences. Aside from a generally positive east-to-west gradient in ecological condition, we found that approximately one-third of the confluences have markedly contrasting ecological conditions between mainstem and tributary, catchment and watershed, or both.
DOI: 10.1594/pangaea.914306
title: Monthly river flow reconstructions for Ireland 1766-2016

description: This dataset provides continuous monthly river flow series for 51 flow stations across the Island of Ireland, commencing in December 1766 and running to November 2016. Flows have been reconstructed using an Artificial Neural Network and the GR2M conceptual hydrological model. Reconstructions from the two models as well as their ensemble are presented for each flow station (ID provided in each column). Also presented are the 2.5 and 97.5 quantile values for the ensemble reconstruction series, which represent the upper and lower uncertainty bounds of the respective ensemble flows derived during the flow generation process.
DOI: 10.1594/pangaea.757969
title: Basic measurements of radiation at station Bermuda (2005-03)
DOI: 10.1594/pangaea.782669
title: (Table 1) Isotope ratios of Lesser Antilles lavas
DOI: 10.1594/pangaea.696192
title: Total organic carbon in waters of the Arabian Sea in sommer 1995 at Station M32/5_430
DOI: 10.1594/pangaea.912586
title: Division of labor and growth during electrical cooperation in multicellular cable bacteria

description: Multicellularity is a key evolutionary innovation, leading to coordinated activity and resource sharing among cells, which generally occurs via the physical exchange of chemical compound. However, filamentous cable bacteria display a unique metabolism in which redox transformations in distant cells are coupled via long-distance electron transport rather than an exchange of chemicals. This challenges our understanding of organismal functioning, as the link between electron transfer, metabolism, energy conservation and filament growth in cable bacteria remains enigmatic. Here, we show that cells within individual filaments of cable bacteria display a remarkable dichotomy in biosynthesis that coincides with redox zonation. Nanoscale secondary ion mass spectrometry combined with 13C (bicarbonate and propionate) and 15N-ammonia isotope labelling reveals that cells performing sulphide oxidation in deeper anoxic horizons have a high assimilation rate, whereas cells performing oxygen reduction in the oxic zone show very little or no label uptake. Accordingly, oxygen reduction appears to merely function as a mechanism to quickly dispense of electrons with little to no energy conservation, while biosynthesis and growth are restricted to sulphide-respiring cells. Still, cells can immediately switch roles when redox conditions change, and show no differentiation, which suggests that the "community service" performed by the cells in the oxic zone is only temporary. Overall, our data reveal a division of labour and electrical cooperation among cells that has not been seen previously in multicellular organisms.
DOI: 10.1594/pangaea.874521
title: Expanded measurements from Neumayer Station (2016-03)

description: 99999: No clouds detected
DOI: 10.1594/pangaea.912349
title: SIRGAS 2017 reference frame realization SIR17P01

description: The SIRGAS reference frame realization (SIR17P01) covers the period from April 17, 2011 (GPS week 1632) to January 28, 2017 (GPS week 1933). It includes only weekly solutions referring to the IGS08/IGb08 reference frame. This new SIRGAS realization is aligned to the IGS14 reference frame and it is consistent with the igs14.atx ground antenna calibrations. SIR17P01 includes positions and velocities of 345 stations referring tothe IGS14, epoch 2015.0. Its estimated precision is ±1.2 mm (horizontal) and ±2.5 mm (vertical) for the station positions at the reference epoch, and ±0.7 mm/a (horizontal) and ±1.1 mm/a (vertical)for the velocities.
description: Datasets listed in this Collection: - SIR17P01.SNX: Station positions and velocities in SINEX (Solution (Software/technique) INdependent Exchange) format - SIR17P01_XYZ.CRD: geocentric Cartesian station positions - SIR17P01_XYZ.VEL: geocentric Cartesian station velocities - SIR17P01_NEH.CRD: ellipsoidal station positions - SIR17P01_NEH.VEL: ellipsoidal station velocities
DOI: 10.1594/pangaea.914213
title: Arctic snowfall climatology from CloudSat Cloud Profiling Radar, 2007-2010

description: Arctic snowfall climatology produced from the version R05 of the CloudSat 2C-SNOW-PROFILE product is available.It covers the 2007-2010 period over the latitudes from 58.5°N to 82°S.The monthly snowfall rates in this file have been calculated using the observations with: - a snow retrieval status lower than 3 - and a snowfall rate surface confidence &gt; 1Additionnaly, the monthly surface snowfall rate uncertainties, number of CloudSat orbits as well as number of observations are available.The number of observations over these 4 years is not sufficient to consider snowfall rates monthly (Edel et al. 2020).If one wants to obtain monthly snowfall rates, it is necessary to average multiple years.
DOI: 10.1594/pangaea.909106
title: Dataset from an active aeolian system in the Dutch coastal dunes: sediment grain size and shape data obtained between 2016 and 2019 using dynamic image analysis

description: This dataset includes 1) A sediment grain size-shape dataset from an active aeolian system in the Dutch coastal dunes and 2) artificial grain size-shape datasets. Both were used to prove applicability of a novel method for the detection of sediment transport processes from a sedimentary deposit. The new method makes use of end-member modelling on grain size-shape distributions. The size and shape data were obtained using dynamic image analysis (video's) of sediment samples. End-member modelling was performed using AnalySize (Paterson and Heslop, 2015. DOI: https://doi.org/10.1002/2015GC006070 )The “Dune dataset” consists of sediment samples from the surface and from sediment traps. The samples were obtained from a coastal dune area south of the town Ijmuiden in the Netherlands (for coordinates of- and info on the samples, refer to Coordinates_and_info_dunedataset.xlsx).The samples were measured using dynamic image analysis. For each sediment grain in each sample, various shape variables were measured (aspect ratio = AR, convexity = con, Cox circularity = Cc). Size was also measured as the area equivalent size (D2d).Based on the class-limits described in grainsize_grainshape_classlimits.xlsx, each sediment grain was assigned to the right class. By summing the volume in each size class, and normalising to a sum of 100%, grain size distributions were obtained (D2d).Furthermore, by assigning each grain to the right size-shape class (see size_shape_distribution_classes.xlsx), grain size-shape distributions were obtained (also summing to 100% volume). ConD2d for example, is a distribution of grain convexity and grain size.The artificial datasets consist of similar data as the "Dune dataset", but the data were generated by creating random mixtures of several grain size-shape distributions using a random number generator.
description: Supplement to: van Hateren, Johannes Albert; van Buuren, Unze; Arens, Sebastiaan Martinus; van Balen, Ronald Theodorus; Prins, Maarten Arnoud (in review): Identifying sediment transport mechanisms from grain size-shape distributions. Earth Surface Dynamics Discussion
DOI: 10.1594/pangaea.915466
title: Model output of organic binding of iron and biological productivity from REcoM2 with a pH/DOC parameterisation of organic complexation

description: The global marine iron cycle has been modeled using REcoM2 (Regulated Ecosystem Model 2) coupled with the ocean circulation model MITgcm (MIT General Circulation Model). A general description of the model can be found in the supporting material for Hauck et al. 2013. In the simulations producing this data set, the organic complexation of iron was made dependent on seawater pH and concentration of dissolved organic matter. With this parameterization, the effect of pH change on the iron cycle and the biological feedback to the iron cycle have been examined through the pathway of ligand binding.In this data set, model output of dissolved iron (DFe), dissolved organic carbon (DOC), stability constants of ligands, free Fe concentration and net primary production (NPP) are included. Four different simulations are considered: R_std (standard), R_constL (with constant 1 nM ligand concentration), R_progL (with one prognostic ligand) and R_ph (with future pH field).
DOI: 10.1594/pangaea.910898
title: Photosynthetically available radiation (PAR) on the seafloor calculated from 21 years of ocean colour satellite data

description: Monthly satellite data (SeaWiFS, MODIS, MERIS, VIIRS) over a 21-year period (1998-2018; from the Globcolour project; http://globcolour.org) are used to calculate the Photosynthetically Available Radiation (PAR) reaching the seafloor in the coastal zone (0 to 200 m depth). Depths are from the 2019 General Bathymetric Chart of the Oceans (GEBCO; https://www.gebco.net) gridded bathymetry data (1/240 degree resolution).* Longitude, latitude, depth and pixel area can be found in the NETCDF file CoastalLight_geo.nc.* Optical parameters (PAR at surface, attenuation coefficient for PAR, and PAR on sea floor)can be found in the following NETCDF files:- Monthly climatologies, mean values: January (01) to December (12): CoastalLight_01.nc, CoastalLight_02.nc, ..., CoastalLight_12.nc- Monthly climatologies, minimum values: January (01) to December (12): CoastalLight_min_01.nc, CoastalLight_min_02.nc, ..., CoastalLight_min_12.nc- Monthly climatologies, maximum values: January (01) to December (12): CoastalLight_max_01.nc, CoastalLight_max_02.nc, ..., CoastalLight_max_12.nc- Monthly climatologies, standard deviation values: January (01) to December (12): CoastalLight_sd_01.nc, CoastalLight_sd_02.nc, ..., CoastalLight_sd_12.nc- Climatology over the whole 21 year period, mean values: CoastalLight_00.nc- Climatology over the whole 21 year period, minimum values: CoastalLight_min_00.nc- Climatology over the whole 21 year period, maximum values: CoastalLight_max_00.nc- Climatology over the whole 21 year period, standard deviation values: CoastalLight_sd_00.nc
DOI: 10.1594/pangaea.909440
title: Water oxygen saturation, infra-red plethysmograph readings and cardiac magnetic resonance imaging of Cancer pagurus subjected to acute severe hypoxia

description: Edible crabs Cancer pagurus were subjected to acute severe hypoxia (15% air saturation). The cardiac responses were monitored with infra-red plethysmography (IR-PPG) and Magnetic Resonance Imaging (MRI).The oxygen partial pressure in the water was monitored using fibre-optic oxygen sensors. "PO2_record_IR-PPG_File_1" contains the recordings relevant for animals 1 (1st run), 3, and 4. "PO2_record_IR-PPG_File_2" contains the recordings for animals 1 (2nd run) and 2.IR-PPG recordings yielded heart rates as peak frequency. Data were also evaluated for signal peak area (integral, relative to a 1-minute minimum) and the average cyclic height as proxies for stroke volume changes.Cardiac MRI are from 4D (i.e. time-resolved 3D) stacks of images. The time series contains the entire contraction of one cardiac cycle. The volume stack covers the entire ventricle.
DOI: 10.1594/pangaea.714967
title: (Table 1) Uranium chemistry of oceanic basalt whole rock samples
DOI: 10.1594/pangaea.754847
title: Physical properties and geochemistry of sediment core JR141_VC424
DOI: 10.1594/pangaea.912350
title: Velocity model for SIRGAS 2017: VEMOS2017

description: We provide a present-day continuous surface-kinematics model for the entire Latin American and Caribbean region (VEMOS2017). VEMOS2017 was derived from pointwise station velocities inferred at 515 geodetic sites from January 1, 2014 to January 28, 2017 using a geodetic least-squares collocation approach with empirically determined covariance functions. VEMOS2017 describes the present-day deformation in Latin America and the Caribbean and continues the surface-kinematics model represented by VEMOS2015, which is valid from March 14, 2010 to April 11, 2015 (see doi:10.1594/PANGAEA.863132). VEMOS2017 covers the region from 120°W, 55°S to 35°W, 32°N with a spatial resolution of 1° x 1°. The average uncertainty of VEMOS2017 is assessed to be ±1.0 mm/a in the north-south direction and ±1.7 mm/a in the east-west direction. The maximum uncertainty values (up to ±15 mm/a) occur at the zones affected by recent strong earthquakes (in the Maule area, the northern part of Chile, Ecuador and Costa Rica). The best uncertainty values (about ±0.1 mm/a) result in the stable eastern part of the South American plate.
description: Datasets listed in this Collection: - VMS2017.GRD: Velocity model for SIRGAS 2017 referring to the IGS14 (ITRF2014) - VMS2017CA.GRD: Velocity model for SIRGAS 2017 relative to the Caribbean plate - VMS2017SA.GRD: Velocity model for SIRGAS 2017 relative to the South American plate.
DOI: 10.1594/pangaea.848457
title: Multi-temporal shoreline change rates on Taku Atoll

description: Recent-past shoreline changes on reef islands are now subject to intensified monitoring via remote sensing data. Based on these data, rates of shoreline change calculated from long-term measurements (decadal) are often markedly lower than recent short-term rates (over a number of years). This observation has raised speculations about the growing influence of sea-level rise on reef island stability. This observation, however, can also be explained if we consider two basic principles of geomorphology and sedimentology. For Takú Atoll, Papua New Guinea, we show that natural shoreline fluctuations of dynamic reef islands have a crucial influence on the calculation of short-term rates of change. We analyze an extensive dataset of multitemporal shoreline change rates from 1943 to 2012 and find that differing rates between long- and short-term measurements consistently reflect the length of the observation interval. This relationship appears independent from the study era and indicates that reef islands were equally dynamic during the early periods of analysis, i.e. before the recent acceleration of sea-level rise. Consequently, we suggest that high rates of shoreline change calculated from recent short-term observations may simply result from a change in temporal scale and a shift from geomorphic equilibrium achieved over cyclic time towards an apparent disequilibrium during shorter periods of graded time. This new interpretation of short- and long-term shoreline change rates has important implications for the ongoing discussion about reef island vulnerability, showing that an observed jump from low to high rates of change may be independent from external influences, including but not limited to sea-level rise.
description: Supplement to: Mann, Thomas; Bayliss-Smith, Tim; Westphal, Hildegard (2016): A Geomorphic Interpretation of Shoreline Change Rates on Reef Islands. Journal of Coastal Research, 319, 500-507
DOI: 10.1594/pangaea.495846
title: Water temperature IBT profiles from cruise U90CQ86092I_1986