Find research datasets worth reusing

opencc-by-4.0Dec 2007View details →

Fig. 6 in Anatomy of a basal sauropodomorph dinosaur from the Early Jurassic Hanson Formation of Antarctica

Fig. 6. Sauropodomorph dinosaur Glacialisaurus hammeri gen. et sp. nov. from the Early Jurassic Hanson Formation at Mt. Kirkpatrick, Beardmore Glacier region, Antarcticac. Right metatarsal II (FMNH PR1823) in distal view. Anterior is toward the top of the page. Note the medial twisting of the distal articular end, and the more robust development of the medial condyle.

opencc-by-4.0Dec 2007View details →

Fig. 3 in Anatomy of a basal sauropodomorph dinosaur from the Early Jurassic Hanson Formation of Antarctica

Fig. 3. Sauropodomorph dinosaur Glacialisaurus hammeri gen. et sp. nov. from the Early Jurassic Hanson Formation at Mt. Kirkpatrick, Beardmore Glacier region, Antarcticac. Distal left femur (FMNH PR1822) in distal view.

Linked collectors and determiners for: Bitentaculate Cirratulidae (Annelida, Polychaeta) collected chiefly during cruises of the R / V Anton Bruun, USNS Eltanin, USCG Glacier, R / V Hero, RVIB Nathaniel B. Palmer, and R / V Polarstern from the Southern Ocean, Antarctica, and off Western South America.

Natural history specimen data linked to collectors and determiners held within, "Bitentaculate Cirratulidae (Annelida, Polychaeta) collected chiefly during cruises of the R / V Anton Bruun, USNS Eltanin, USCG Glacier, R / V Hero, RVIB Nathaniel B. Palmer, and R / V Polarstern from the Southern Ocean, Antarctica, and off Western South America". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/897dc544-e3e9-46db-b36e-4aa995caabc4">https://bionomia.net/dataset/897dc544-e3e9-46db-b36e-4aa995caabc4</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/897dc544-e3e9-46db-b36e-4aa995caabc4">https://gbif.org/dataset/897dc544-e3e9-46db-b36e-4aa995caabc4</a>. Formatted as a Frictionless Data package.

Linked collectors and determiners for: Mollusca collected by Agassiz trawl from the 2016 SO-AntEco Expedition to the South Orkney Islands, Antarctica - data.

Natural history specimen data linked to collectors and determiners held within, "Mollusca collected by Agassiz trawl from the 2016 SO-AntEco Expedition to the South Orkney Islands, Antarctica - data". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/60f0304b-2b55-41c5-b23d-b3df565a2389">https://bionomia.net/dataset/60f0304b-2b55-41c5-b23d-b3df565a2389</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/60f0304b-2b55-41c5-b23d-b3df565a2389">https://gbif.org/dataset/60f0304b-2b55-41c5-b23d-b3df565a2389</a>. Formatted as a Frictionless Data package.

Linked collectors and determiners for: Life beneath the ice: jellyfish and ctenophores from the Ross Sea, Antarctica, with an image-based training set for machine learning.

Natural history specimen data linked to collectors and determiners held within, "Life beneath the ice: jellyfish and ctenophores from the Ross Sea, Antarctica, with an image-based training set for machine learning". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/f1ddda5a-ac85-46a3-955c-b75277c6a600">https://bionomia.net/dataset/f1ddda5a-ac85-46a3-955c-b75277c6a600</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/f1ddda5a-ac85-46a3-955c-b75277c6a600">https://gbif.org/dataset/f1ddda5a-ac85-46a3-955c-b75277c6a600</a>. Formatted as a Frictionless Data package.

Linked collectors and determiners for: Invertebrates from the ANTARXXVII Leg1 expedition to the Bransfield Strait, Antarctica - data.

Natural history specimen data linked to collectors and determiners held within, "Invertebrates from the ANTARXXVII Leg1 expedition to the Bransfield Strait, Antarctica - data". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/25bf34e6-48ef-41aa-9b62-876ca0c66a2a">https://bionomia.net/dataset/25bf34e6-48ef-41aa-9b62-876ca0c66a2a</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/25bf34e6-48ef-41aa-9b62-876ca0c66a2a">https://gbif.org/dataset/25bf34e6-48ef-41aa-9b62-876ca0c66a2a</a>. Formatted as a Frictionless Data package.

opencc-by-4.0Oct 2024View details →

Drainage System Masks in the Transantarctic Mountains, Antarctica

This data product is a set of drainage system boundary masks in the Transantarctic Mountains, Antarctica. These masks were developed to support a landscape evolution study but could be useful in other Antarctic applications. My regions of interest were determined by locating where topography converges to a single point, similar to the methodology used for delineating fluvial watersheds, except over ice instead of water. Masks were manually delineated using the Reference Elevation Model of Antarctica, a high-resolution DEM of the Antarctic Surface and the United States Geologic Survey (USGS) topography maps both provided by the <a href="https://www.pgc.umn.edu/">Polar Geospatial Center</a>. There are 36 drainage system masks in total merged into one shapefile. The shapefile attribute table contains 4 parameters: BasinValue, BasinName, Shape_Leng, and Shape_Area. BasinValue column contains a unique integer for each drainage area from 1-38 while BasinName contains the name of the closest major glacier for reference.  Spatial Reference System: WGS 84 / Antarctic Polar Stereographic (<a href="https://epsg.io/3031">EPSG:3031</a>) Data Format: Shapefile

opencc-by-4.0Oct 2024View details →

Vertically pointing doppler radar profiles (24 GHz Metek MRR-2) at Concordia Station (Dome C, Antarctica), aggregated to 5min, monthly netCDF archive

Vertical profiles along the first three kilometres of atmosphere above the ground (from 300 to 3000 m AGL) of equivalent radar reflectivity factor (Ze), Doppler velocity (W) and Doppler spectral width (Sw) from a 24-GHz vertically pointing Micro Rain Radar MRR-2 by METEK GmbH positioned at Concordia Station (Dome C, Antarctica). Metadata available at <a href="https://antarcticdatacenter.cnr.it/geonetwork/srv/eng/catalog.search#/metadata/6dc25ff0-4c03-4ca8-af0d-cba06a411dc2" target="_blank" rel="noopener">https://antarcticdatacenter.cnr.it/geonetwork/srv/eng/catalog.search#/metadata/6dc25ff0-4c03-4ca8-af0d-cba06a411dc2</a>  -------------------------------------------------------------------- Example of netCDF file structure: <h2>File "DMC_MRR_MeK_201901_5min.nc"</h2> <pre> dimensions: range = 31; time = UNLIMITED; // (7736 currently) variables: float Ze(range=31, time=7736); :description = "Equivalent reflectivity factor relative to the most significant peak, dealiased, 5min non-logarithmic average. NaN means clear sky at the specified height."; :units = "dBZ"; :_ChunkSizes = 31U, 1U; // uint long time_UTC(time=7736); :description = "Measurement time. Timestamp indicates the end of the aggregation interval, e.g. 01-Mar-2020 00:05:00 represents the average of the variables between 01-Mar-2020 00:00:01 and 01-Mar-2020 00:05:00."; :time_zone = "UTC"; :units = "Seconds since 1970-01-01 00:00:00 (Unix time)."; :_ChunkSizes = 512U; // uint float W(range=31, time=7736); :description = "Mean Doppler Velocity of the most significant peak, dealiased, 5min average. Value not available in clear-sky conditions."; :units = "m s^-1"; :_ChunkSizes = 31U, 1U; // uint float height(range=31, time=7736); :description = "Height above instrument."; :units = "m"; :_ChunkSizes = 31U, 1U; // uint float spectralWidth(range=31, time=7736); :description = "Doppler Spectral Width of the most significant peak, dealiased, 5min average. Value not available in clear-sky conditions."; :units = "m s^-1"; :_ChunkSizes = 31U, 1U; // uint // global attributes: :title = "Micro rain radar data processed with IMProToo (Maahn, M. and Kollias, P., 2012), aggregated to 5min, monthly netCDF archive."; :comment = "IMProToo has been developed for improved snow measurements. Note that this data has been processed regardless of precipitation type."; :time_label = "Jan 2019"; :source = "Micro Rain Radar 2 (MRR-2), METEK GmbH, at DMC (Antarctica), frequency: 24 GHz, power: 50 mW, antenna diameter: 60 cm [https://metek.de/product/mrr-2/]"; :institution = "CNR-INO, Florence (IT)"; :contact_person = "Gianluca Di Natale, CNR-INO, Florence (IT), gianluca.dinatale@ino.cnr.it"; :location = "Concordia Station (Dome C, Antarctica, 75°06\'S, 123°21\'E, 3233 m a.s.l.)"; :author = "Giacomo Roversi, Ca\' Foscari University, Venice (IT) and CNR-ISAC, Rome (IT), g.roversi@isac.cnr.it"; :creation_date = "22-Oct-2024 17:32:24 UTC"; :coverage = "Monthly coverage (Jan 2019): 90.3226 %"; :time_resolution = "5 minutes"; :history = "Created with IMProToo v0.107 [https://github.com/maahn/IMProToo], aggregated to 5 minutes temporal resolution with an average of the 1-minute values if least 3 out of 5 are not NaN."; </pre>

Fig. 4 in Early evolution of Coriariaceae (Cucurbitales) in light of a new early Campanian (ca. 82 Mya) pollen record from Antarctica

Fig. 4. The evolution of chromosome numbers in Coriaria inferred under a best-fitting maximum-likelihood model (Materials and Methods).

Fig. 1 in Early evolution of Coriariaceae (Cucurbitales) in light of a new early Campanian (ca. 82 Mya) pollen record from Antarctica

Fig. 1. Distribution map of Coriaria species generated from georeferenced data available in GBIF (accessed Jan 2019).

Fig. 2 in Early evolution of Coriariaceae (Cucurbitales) in light of a new early Campanian (ca. 82 Mya) pollen record from Antarctica

Fig. 2. Selected extant and fossil species of Coriaria. A, C. myrtifolia (photo by Tanja M. Schuster); B, Holotype of C. longaeva G. de Saporta, 1866, showing the characteristic venation pattern, leaf attachment, and terminal inflorescence; C, C. sarmentosa flowers showing protogyny (photo by Pieter Pelser, PhytoImages, Nickrent & al., 2006 –); D, Fruits of C. sarmentosa with accrescent corollas (photo by Tanja M. Schuster); E, The characteristically small leaves of C. microphylla or C. ruscifolia subsp. microphylla (photo by Axel Dalberg Poulsen); F, C. ruscifolia in Chile (photo by Mark Olson).

Fig. 6 in Early evolution of Coriariaceae (Cucurbitales) in light of a new early Campanian (ca. 82 Mya) pollen record from Antarctica

Fig. 6. Fossil and extant representatives of Coriariaceae observed with scanning electron microscopy. A, Pollen of Coriaripites goodii sp. nov. from the late Cretaceous of Antarctica (blue frame); polar view showing details of sculpture, big apocolpium and short colpi (arrowheads); B, Extant pollen of Coriaria arborea (magenta frame); polar view showing details of sculpture and colpi length (arrowhead). — Scale bars = 5 μm.

opencc-by-4.0Dec 2020View details →

Data set for anthropogenic contaminants in ice cores (Dome C - Antarctica)

The produced dataset (in MS Excel format) contains depth profile concentrations of a 16.5 m deep shallow core (covering approx. 200 years before present) drilled at the plateau site of Dome C, East Antarctica (75°06' South Latitude, 123°21' East Longitude), during the 23rd Italian Antarctic Expedition. The concentrations of the Polycyclic Aromatic Hydrocarbon (PAH) Benzo[k]fluoranthene (BKF) and of Organochlorinated Pesticides (OCP) expressed as three single compounds (PeCB, ALD and 44D) and total (Σ51 Pesticides) are given in ng L-1. The ice core covers a time interval, which includes periods before and after the introduction of these Persistent Organic Pollutants (POPs) in commercial mixtures, as well as periods before the construction of research station facilities. However, in the top samples of the ice core, detected concentrations of analytes are ascribable to industrial anthropogenic activities.

FIG. 5 in Taxonomic revision of therocephalians (Therapsida: Theriodontia) from the Lower Triassic of Antarctica

FIG. 5. (A) AMNH FARB 9548, Baurioidea indet., crushed skull and lower jaw in ventral view, with associated postcrania. Abbreviations: C1, first upper canine; C2, second upper canine; PC1, root of first upper postcanine tooth; PC6?, root of possible sixth upper postcanine tooth. (B) AMNH FARB 9525, Baurioidea indet., partial skull and lower jaw in right lateral view. Abbreviations: c, impression of lower canine; C, root of upper canine; I?, root of possible upper incisor. Numbers refer to apomorphies listed in table 1. Scale bars = 10 mm.

FIG. 3. AMNH FARB 9550 in Taxonomic revision of therocephalians (Therapsida: Theriodontia) from the Lower Triassic of Antarctica

FIG. 3. AMNH FARB 9550, Eutherocephalia indet., partially articulated posterior skeleton in ventral view. Numbers refer to apomorphies listed in table 1. Gray areas indicate impression. Abbreviations: tr. int.: internal trochanter; tr. maj.: trochanter major; vert. l.: lumbar vertebrae; vert. s.: sacral vertebrae. Scale bar = 10 mm.

FIG. 2 in Taxonomic revision of therocephalians (Therapsida: Theriodontia) from the Lower Triassic of Antarctica

FIG. 2. Consensus cladogram summarizing the results of several recent analyses of therocephalian relationships (Hopson and Barghusen, 1986; van den Heever, 1994; Botha et al., 2007; Abdala, 2007; Huttenlocker, 2009; Huttenlocker et al., 2011). Numbers in parentheses indicate apomorphies observable in the studied specimens and listed in table 1.

FIG. 1 in Taxonomic revision of therocephalians (Therapsida: Theriodontia) from the Lower Triassic of Antarctica

FIG. 1. Geology and geography of the Permo-Triassic vertebrate-bearing localities in the vicinity of the Beardmore and Shackleton glaciers, central Transantarctic Mountains. Star indicates position of therocephalian localities (Kitching Ridge, Halfmoon Bluff, Thrinaxodon Col) in the lower Fremouw Formation of Cumulus Hills, Shackleton Glacier region (inset). Gray areas represent exposures of the Buckley Formation; striped areas represent exposures of the Fremouw Formation; hatched areas represent igneous intrusions or metamorphic pre-Devonian basement; dotted areas represent surficial cover. Scale bars are in kilometers. (Map modified from Axsmith et al., 2000 and Collinson et al., 2006.)

FIG. 6. AMNH FARB 9542 in Taxonomic revision of therocephalians (Therapsida: Theriodontia) from the Lower Triassic of Antarctica

FIG. 6. AMNH FARB 9542, cf. Ericiolacerta parva, isolated pterygoid in ventral view. Numbers refer to apomorphies listed in table 1. Abbreviation: cr. v.-int. Pt, intermediate ventral crest of pterygoid. Scale bar = 5 mm.

FIG. 7. AMNH FARB 9542 in Taxonomic revision of therocephalians (Therapsida: Theriodontia) from the Lower Triassic of Antarctica

FIG. 7. AMNH FARB 9542, cf. Ericiolacerta parva, isolated left dentary in lateral view. Numbers refer to apomorphies listed in table 1. Abbreviations: i1, root of first lower incisor; i2, root of second lower incisor; pc1?, possible first lower postcanine tooth; pc6?, possible sixth lower postcanine tooth. Scale bar = 5 mm.