cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.feh6yh
title: Occurrence Download

description: A dataset containing 467 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Platea latifolia Blume"
 ]
}

 The dataset includes 467 records from 31 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077545-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.untrq3
title: Occurrence Download

description: A dataset containing 71 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Malaysia",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Acacia auriculiformis A.Cunn. ex Benth."
 ]
}

 The dataset includes 71 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077547-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.sqnbng
title: Occurrence Download

description: A dataset containing 37858 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Poa chaixii Vill."
 ]
}

 The dataset includes 37858 records from 527 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077544-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qrc2qc
title: Occurrence Download

description: A dataset containing 208 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Phrynium giganteum Scheff."
 ]
}

 The dataset includes 208 records from 15 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077548-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.k86wee
title: Occurrence Download

description: A dataset containing 1324 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pinguicula longifolia DC."
 ]
}

 The dataset includes 1324 records from 100 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077549-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hjhw3m
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Platea malayana Utteridge"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077551-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.8yfer2
title: Occurrence Download

description: A dataset containing 361 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Polygala rosea Desf."
 ]
}

 The dataset includes 361 records from 41 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077550-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.34740/kaggle/dsv/8000204
title: TLDR pages translation pairs dataset
DOI: 10.15468/dl.5wx3vb
title: Occurrence Download

description: A dataset containing 185 species occurrences available in GBIF matching the query:
{
 "and" : [
 "GadmGid is one of (USA.28_1, USA.37_1, USA.44_1, USA.26_1, USA.17_1)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Sistrurus catenatus (Rafinesque, 1818)"
 ]
}

 The dataset includes 185 records from 19 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077552-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.whnqnw
title: Occurrence Download

description: A dataset containing 5 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Phrynium grandibracteatum Clausager & Borchs."
 ]
}

 The dataset includes 5 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077553-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.73jtzw
title: Occurrence Download

description: A dataset containing 33 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Platea parvifolia Merr. & Chun"
 ]
}

 The dataset includes 33 records from 13 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077556-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.wrf2b2
title: Occurrence Download

description: A dataset containing 226 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Phyteuma tetramerum Schur"
 ]
}

 The dataset includes 226 records from 28 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077554-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xjgwud
title: Occurrence Download

description: A dataset containing 11416 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pinguicula lusitanica L."
 ]
}

 The dataset includes 11416 records from 319 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077555-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.rmd9bj
title: Occurrence Download

description: A dataset containing 78 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Polygala rosmarinifolia Wight & Arn."
 ]
}

 The dataset includes 78 records from 17 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077558-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.jx98mm
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Poa chokensis S.M.Phillips"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077557-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.7ufdgs
title: Occurrence Download

description: A dataset containing 54 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Phrynium hainanense T.L.Wu & S.J.Chen"
 ]
}

 The dataset includes 54 records from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077559-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.osft1b
title: Polar Opposites Attract on Saturn’s Moon Titan

description: That polar and non-polar compounds do not spontaneously mix is a textbook rule of chemistry with few exceptions. Here we provide evidence for the intercalation of methane, ethane, and small hydrocarbons into the lattice structure of hydrogen cyanide (HCN), a highly polar molecule. Using cryogenic syntheses and Raman spectroscopy, we observe distinct shifts in vibrational modes in line with enhanced hydrogen bonding upon hydrocarbon insertion. Co-crystal structures composed of HCN and ethane that are both thermodynamically stable, and that closely match measured vibrational shifts are computationally predicted. Methane, ethane and HCN are major components of the atmosphere and surface of Saturn’s moon Titan, where they play key roles in shaping chemistry, weather, and landscape. Their intermixing may prove instrumental for explaining Titan’s chemical and geological evolution.
DOI: 10.48577/jpl.wjao3y
title: Supporting information for “Decadal evolution of ice-ocean interactions at a large East Greenland glacier resolved at fjord scale with downscaled ocean models and observations

description: As given in the main document (URS324295): In recent decades, the Greenland ice sheet has been losing mass through glacier retreat and ice flow acceleration. This mass loss is linked with variations in submarine melt, yet existing ocean models are either coarse global simulations focused on decadal‐scale variability or fine‐scale simulations for process‐based investigations. Here, we unite these scales with a framework to downscale from a global state estimate (15 km) into a regional model (3 km) that resolves circulation on the continental shelf. We further downscale into a fjord‐ scale model (500 m) that resolves circulation inside fjords and quantifies melt. We demonstrate this approach in Scoresby Sund, East Greenland, and find that interannual variations in submarine melt at Daugaard‐Jensen glacier induced by ocean temperature variability are consistent with the decadal changes in glacier ice dynamics. This study provides a framework by which coarse‐resolution models can be used to quantify glacier submarine melt for future ice sheet projections.
DOI: 10.15468/dl.vq844v
title: Occurrence Download

description: A dataset containing 4 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Platea sclerophylla Sleumer"
 ]
}

 The dataset includes 4 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077560-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.wvu5dc
title: Occurrence Download

description: A dataset containing 497 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Phyteuma vagneri A.Kern."
 ]
}

 The dataset includes 497 records from 29 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077561-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.djf5ls
title: The carbon isotope ratio and planet formation

description: We present the first detection of 13 CCH in a protoplanetary disk (TW Hya). Using observations of C2H we measure CCH/13CCH = 65±20 gas with a CO isotopic ratio of 12CO/13 CO = 21±5 (Yoshida et al. 2022a). The TW Hya disk exhibits a gas phase C/O that exceeds unity and C2H is the tracer of this excess carbon. We confirm that the TW Hya gaseous disk exhibits two separate carbon isotopic reservoirs as noted previously (Yoshida et al. 2022a). We explore two theoretical solutions for the development of this dichotomy. One model represents TW Hya today with a protoplanetary disk exposed to a cosmic ray ionization rate that is below interstellar as consistent with current estimates. We find that this model does not have sufficient ionization in cold (T &lt; 40 K) layers to activate carbon isotopic fractionation. The second model investigates a younger TW Hya protostellar disk exposed to an interstellar cosmic ray ionization rate. We find that the younger model has sources of ionization deeper in a colder disk that generates two independent isotopic reservoirs. One reservoir is 12C-enriched carried by methane/hydrocarbon ices and the other is 13 C-enriched carried by gaseous CO. The former potentially provides a source of methane/hydrocarbon ices to power the chemistry that generates the anomalously strong C2H emission in this (and other) disk systems in later stages. The latter provides a source of gaseous 13 C rich material to generate isotopic enrichments in forming giant planets as recently detected in the super-Jupiter TYC 8998-760-1 b by Zhang et al. (2021).
DOI: 10.34740/kaggle/dsv/8000216
title: F_score_base_gerada1
DOI: 10.48577/jpl.xocu6a
title: AMV Error Characterization and Bias Correction by Leveraging Independent Lidar Data: a Simulation using OSSE and Optical Flow AMVs

description: Accurate estimation of global winds is crucial for various scientific and practical applications, such as global chemical transport modeling and numerical weather prediction. One valuable source of wind measurements is Atmospheric Motion Vectors (AMVs), which play a vital role in the global observing system and numerical weather prediction models. However, errors in AMV retrievals need to be addressed before their assimilation into data assimilation systems, as they can affect the accuracy of outputs. An assessment of the bias and uncertainty in passive-sensor AMVs can be done by comparing them with information from independent sources such as active-sensor winds. In this paper, we examine the benefit and performance of a colocation scheme using independent and sparse lidar wind observations as a dependent variable in a supervised machine learning model. We demonstrate the feasibility and performance of this approach in an Observing System Simulation Experiment (OSSE) framework, with reference geophysical state data obtained from high resolution Weather Research and Forecasting (WRF) Model simulations of three different weather events. Lidar wind data are typically available in only one direction, and our study demonstrates that this single component of wind in high-precision active-sensor data can be leveraged (via a machine learning algorithm to model the conditional mean) to reduce the bias in the passive-sensor winds. Further, this active-sensor wind information can be leveraged through an algorithm that models the conditional quantiles to produce stable estimates of the prediction intervals, which are helpful in design and application of error analysis such as quality filters.
DOI: 10.15468/dl.t3by59
title: Occurrence Download

description: A dataset containing 31 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Poa clavigera Veldkamp"
 ]
}

 The dataset includes 31 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077562-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.jc3ksr
title: Direct detection and characterization of exoplanets using imaging Fourier transform spectroscopy

description: Space-based direct imaging provides prospects for detection and spectral characterization of exoplanets at optical and near-infrared wavelengths. Integral field spectrographs (IFS) have been historically baselined for these mission concepts. However, multiple studies have revealed that detector noise is a serious obstacle for such instruments when observing extremely faint targets such as Earth-like planets. Imaging Fourier transform spectrographs (iFTS) are generally less sensitive to detector noise, and have several other compelling features such as simultaneous imaging and spectroscopy, smaller-format detector requirements, and variable spectral resolving power. To date, they have not been studied as options for such missions. Here, we compare the capabilities of integral field spectrographs and imaging Fourier transform spectrographs for directly obtaining spectra from an Earth-like planet using both analytic and numerical models. Specifically, we compare the required exposure times to achieve the same signal-to-noise ratio with the two architectures over a range of detector and optical system parameters. We find that for a 6-meter telescope, an IFS outperforms an iFTS at optical wavelengths due to the effects of distributed photon noise. In the near-IR, the relative efficiency of an IFS and iFTS depends critically on the instrument design and detector noise. An iFTS will be more efficient than an IFS if the readout noise of the near-IR detector is above ~2 − 3 e− pix−1 frame−1(tfrm = 1000s), which correspond to half to one-third of the state-of-art detector noise. However, if the readout noise is reduced below this threshold, the performance of an IFS will experience a substantial improvement and become more efficient. These results motivate consideration of an iFTS as an alternative option for future direct imaging space missions in the near-IR.
DOI: 10.48577/jpl.fvxqys
title: Inorganic Interpretation of Luminescent Materials Encountered by the Perseverance Rover on Mars

description: A major objective of the Mars 2020 mission is to sample rocks in Jezero crater that may preserve organic matter for later return to Earth. Using an ultraviolet Raman and luminescence spectrometer, the Perseverance rover detected luminescence signals with maximal intensities at 330-350 nm and 270-290 nm that were initially reported as consistent with organics. Here, we test the alternative hypothesis that the 330-350 nm and 270-290 nm luminescence signals trace Ce3+ in phosphate and silicate defects, respectively. By comparing the distributions of luminescence signals with the rover detections of X-ray fluorescence from P2O5 and Si-bearing materials, we show that, while an organic origin is not excluded, the observed luminescence can be explained by purely inorganic materials. These findings highlight the importance of eventual laboratory analyses to detect and characterize organic compounds in the returned samples.
DOI: 10.48577/jpl.imvyqr
title: Cloud-based Ocean Digital Twins as a Pathway Toward Scalable Marine Robotic Operations

description: As AUV and ASV technologies are increasing their capabilities to support mission durations of weeks to months and a range of hundreds to thousands of kilometers, a fundamental question exists on how to plan missions, predict vehicles performance, and make real time decisions on vehicles routes to maximize battery-powered vehicle endurance while minimizing the risk of vehicle loss. In this work we merged ocean digital twins with AUV dynamics and battery models in a scalable cloud framework that allows to run, during a mission of the physical systems, large Monte Carlo scenarios and autonomously communicate via satcom to the AUV the ideal route. The system was demonstrated during a combined mission of an ASV Waveglider and AUV Remus600, successfully identifying and transmitting to the AUV the ideal path that minimizes time-to-target and battery usage in the challenging ocean currents environment of the New England Shelf near the Woods Hole area
DOI: 10.15468/dl.vsdqpk
title: Occurrence Download

description: A dataset containing 14039 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Polygala rupestris Pourr."
 ]
}

 The dataset includes 14039 records from 146 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077563-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.kfztv2
title: Evaluating Pigments as a Biosignature: Abiotic / Prebiotic Synthesis of Pigments and Pigment Mimics in Planetary Environments

description: Pigments serve a multitude of functions including light harvesting for photosynthesis, protection against radiation and harmful radicals, membrane support, and defense. The ubiquity of pigments– especially within extremophiles found in high-radiation, high-salinity, and dry environments – and their detectability via mission-ready techniques has elevated these molecules as promising targets for life detection missions. The detection of these molecules has been proposed as a “smoking gun” for the detection of extraterrestrial life as the growing opinion has been pigments cannot be generated prebiotic conditions. However, this claim should be regarded with caution given that the prebiotic synthesis of these molecules is considerably understudied, especially when compared to other building blocks of life The molecular structure does not constitute a particular chemical motif and includes any compound capable of absorbing specific wavelengths of visible light. Previous prebiotic studies have demonstrated feasible prebiotic routes for generating pigments including hemes, chlorophylls, and carotenoids. While a total prebiotic synthesis has yet to be demonstrated, these prebiotic studies, and total synthetic procedures for generating these molecules in industry, indicate promising avenues for future research. Herein, we review the biochemistry of pigments, their abiotic synthesis in industry, prebiotic reactions, and implications/recommendations for future work, and molecules which can mimic their spectral signatures during planetary missions. While pigments hold promise as a biosignature, a current understanding of abiotic routes remains understudied and uncertain. This is critical for evaluating the biogenicity of any pigment detected during missions including by the Mars Perseverance rover.
DOI: 10.48577/jpl.r6yhnl
title: Decadal evolution of ice-ocean interactions at a large East Greenland glacier resolved at fjord scale with downscaled ocean models and observations

description: In recent decades, the Greenland ice sheet has been losing mass through glacier retreat and ice flow acceleration. This mass loss is linked with variations in submarine melt, yet existing ocean models are either coarse global simulations focused on decadal-scale variability or fine-scale simulations for process-based investigations. Here, we unite these scales with a framework to downscale from a global state estimate (15 km) into a regional model (3 km) that resolves circulation on the continental shelf. We further downscale into a fjord-scale model (500 m) that resolves circulation inside fjords and quantifies melt. We demonstrate this approach in Scoresby Sund, East Greenland and find that interannual variations in submarine melt at Daugaard-Jensen glacier induced by ocean temperature variability are consistent with the decadal changes in glacier ice dynamics. This study provides a framework by which coarse-resolution models can be used to quantify glacier submarine melt for future ice sheet projections.
DOI: 10.15468/dl.8g3c8n
title: Occurrence Download

description: A dataset containing 1050 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pinguicula macroceras Pall. ex Link"
 ]
}

 The dataset includes 1050 records from 89 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077565-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.o3x3ps
title: An Introduction to Flexure Design

description: No abstract available.
DOI: 10.15468/dl.kcw5wb
title: Occurrence Download

description: A dataset containing 1779 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Platostoma africanum P.Beauv."
 ]
}

 The dataset includes 1779 records from 71 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077566-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.mvpv73
title: Occurrence Download

description: A dataset containing 26 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Phrynium hirtum Ridl."
 ]
}

 The dataset includes 26 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077564-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.