cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48577/jpl.s0axdj
title: Over, Under, and Through: Hydrologic Connectivity and the Future of Coastal Landscape Salinization

description: Seawater intrusion (SWI) affects coastal landscapes worldwide. Here we describe the hydrologic pathways through which SWI occurs - over land via storm surge or tidal flooding, under land via groundwater transport, and through watersheds via natural and artificial surface water channels – and how human modifications to those pathways alter patterns of SWI. We present an approach to advance understanding of spatiotemporal patterns of salinization that integrates these hydrologic pathways, their interactions, and how humans modify them. We use examples across the East Coast U.S. that exemplify mechanisms of salinization that have been reported around the planet to illustrate how hydrologic connectivity and human modifications alter patterns of SWI. Finally, we propose a path for advancing SWI science by developing a cross-site, cross-disciplinary network of scientists to (1) deploy standardized and well-distributed sensor networks at local to global scales that intentionally track SWI fronts, (2) employ remote sensing and geospatial imaging techniques targeted at integrating above and belowground patterns of SWI, and (3) continue developing data analysis and model-data fusion techniques to measure the extent, understand the effects, and predict the future of coastal salinization.
DOI: 10.48577/jpl.r5fxor
title: Data Management and Data Products of a Daily Optical Communications Ground Station for Laser Communications Relay Demonstration

description: The Laser Communications Relay Demonstration (LCRD) mission is the first NASA end-to-end optical relay. Theproject has been operating since the Space Test Program Satellite-6 (STPSat-6) spacecraft launch in December, 2021. The aim of thisproject is to show the feasibility of optical communications as a high-bandwidth service provider for NASA from geo-synchronousorbit to ground. This capability has been demonstrated through a long-term study of performance over time and varying channelconditions. Optical Ground Station 1 (OGS-1), located at Table Mountain Facility near Wrightwood, CA, has supported first-light andcommissioning, and the current experiment phase, covering the recent three-year period on a largely daily operational cadence.Configured links include relays with Optical Ground Station 2 (OGS-2) in Haleakalā, Hawaii and ground-to-satellite loopbacks. Thispaper discusses the considerations behind OGS-1 data management and its development over the course of operations. Anexperimental scenario is described wherein this embedded system is demonstrated
DOI: 10.48577/jpl.iufkaj
title: Paper: Small in number but mighty in significance: Impact craters as windows into Europa’s subsurface

description: Impact craters are rare on the icy ocean world Europa: only 24 ≧10 km in diameter are currently observed. Craters ≳20 km in diameter, such as Pwyll and Manannán, display unusual morphologies, perhaps because they excavate down close to the subsurface ocean. Previous work suggests Manannán may have impacted into liquid, slushy ice or thinner ice than at Pwyll. Here we show that impact craters, via their intrinsic morphologic and compositional properties, as well as impact-excavation of otherwise unobservable materials, provide windows into subsurface structure and composition, making them natural laboratories for investigating Europa’s habitability. We find that both Pwyll and Manannán excavated dark material from ~3.1 km deep, which could be intriguing non-ice materials such as H2SO4 or hydrated minerals. We calculate that Pwyll impacted into a solid ice shell of ≧10.7 km thickness. We hypothesize that Manannán may have impacted into less viscous material, and detail how this can be tested with future Europa Clipper data. We also hypothesize that a reservoir of sub-surface impact-induced material sourced the lobate material within Pwyll. This hypothesis can also be tested with Europa Clipper data and, if confirmed, would provide targets to observe salts derived from potentially some of the most processed brines on Europa.
DOI: 10.48577/jpl.ibrcms
title: Improving molten regolith electrolysis with zirconia-based hollow anode technology

description: Molten regolith electrolysis is a promising in-situ resource utilization technology that targets O2 and metals production through the direct electrolysis of molten lunar regolith. However, there are still challenges associated with molten regolith electrolysis, such as bubble detachment and O2 separation and collection at the anode. A hollow anode, comprised of an oxygen-conducting yttria-stabilized zirconia shell and a platinum current collector, is designed here to address these challenges. Experimental results from an inverted hollow anode reactor successfully demonstrate that molten regolith electrolysis can be performed through a solid electrolyte. The elemental composition of both the cathodic products (primarily Fe and Si) and solidified lunar regolith simulant are reported as a function of electrolysis duration. These observations are supported by a thermochemical model built using FactSage to provide compositions of the cathodic products and solidified regolith simulant with increasing O2 removal. Finally, the behavior of yttria-stabilized zirconia in the hollow anode application is characterized, and provides guidance for the design and operation of a yttria-stabilized zirconia hollow anode to enable integration into a full-scale molten regolith electrolysis reactor.
DOI: 10.48577/jpl.cxcj6j
title: Type-II superlattice mid- and long-wavelength infrared detectors

description: This section briefly discusses mid- and long-wavelength III-V semiconductor type-II superlattice (T2SL) mid- and long-wavelength infrared detectors; more detailed information can be found in review articles in the literature cited herein.
DOI: 10.48577/jpl.mqbvwx
title: Revisiting Electrostatic Discharge Behavior from Floating Metal under Electron Irradiation

description: Floating metals are a known root cause for spacecraft anomalies and failures due to associated space radiation induced electrostatic discharge (ESD). A recent publication called into question the standard size limit rules for ungrounded conductor applications on spacecraft, reporting significantly larger ESD magnitudes compared to those used to derive the standard size limits may be possible if the discharge punches through the insulation separating the floating metal from a signal trace versus the previously observed blow-off mode ESD. That testing was done under the application of voltage directly to the floating metal and did not represent flight-like charging due to electron irradiation. We present testing of floating metal patches exposed to an electron beam. The dielectric surrounding the metal patches is also a source of ESD when testing with an electron beam, however, blow-off ESD either from the floating metal or the surrounding dielectric is distinguishable from punch-through ESD due to differences in ESD pulse polarity, time constant, and magnitude. We confirm that large-magnitude punch through ESD can occur due to electron irradiation of small floating metal patches. The worst-case punch-through pulses are consistent with estimates of the maximum amount of energy of the equivalent capacitor at breakdown. That theoretical maximum has been shown to be a good worst-case bound if the correct material properties are known. We propose that floating metal design practices move away from generic conductor size limits to ESD threat-based criteria.
DOI: 10.48577/jpl.dsubfx
title: Quantified Estimation of Molecular Detections across Different Classes of Neptunian Atmospheres Using Cross-Correlation Spectroscopy: Prospects for Future Extremely Large Telescopes with High-Resolution Spectrographs

description: Neptune-size exoplanets are less studied as characterizing their atmospheres presents challenges due to their relatively small radius and atmospheric scale height. As the most common outcome of planet formation, these planets are crucial for understanding planetary formation, migration theories, atmospheric composition, and potential habitability. Their diverse atmospheres, influenced by equilibrium temperature, composition, and cloud presence, offer unique opportunities to study atmospheric dynamics and chemistry. While low-resolution spectroscopy struggles with atmospheric characterization due to clouds, high-resolution observations provide detailed analysis of the atmospheres by detecting molecular lines beyond the cloud deck. This study investigates four subclasses of Neptune atmospheres: HAT-P-11 b (warm Neptune), HD 63433 c (warm sub-Neptune), K2-25 b (temperate Neptune), and TOI-270 d (temperate sub-Neptune), using six ground-based spectrographs: GIANO-B, CARMENES, IGRINS, HISPEC, MODHIS, and ANDES over one and three transits. Our simulation integrates the chemical kinetics model, VULCAN with the 1-D line-by-line radiative transfer model, petitRADTRANS, and estimates detection significance using the ground-based noise simulator, SPECTR. We aim to predict how future Extremely Large Telescopes (ELTs) such as TMT (MODHIS) and E-ELT (ANDES) can utilize their higher resolving powers and larger collecting areas to surpass current observatories in detecting molecular bands. We highlight the importance of photochemistry in these atmospheres and demonstrate how ELTs will help further in constraining nitrogen and sulfur chemistry. Finally, we present a comprehensive picture of cloud presence in the atmospheres and its impact on molecular detectability in Neptune-class atmospheres.
DOI: 10.48577/jpl.tielno
title: Direct High-Resolution Imaging of Earth-Like Exoplanets

description: We have surveyed all conventional methods proposed or conceivable for obtaining resolved images of an Earth-like exoplanet. Generating a 10 × 10 pixel map of a 1 R⊕ world at 10 pc demands ≈ 0.85 µas angular resolution and photon-collection suﬃcient for SNR 5 per “micro-pixel.” We derived diffraction-limit and photon-budget requirements for: (1) large single-aperture space tele- scopes with internal coronagraphs; (2) external-starshades; (3) space-based interferometry (nulling and non-nulling); (4) ground-based ELTs with extreme AO; (5) pupil-densified “hypertelescopes”; (6) indirect reconstructions (rotational light-curve inversion, eclipse mapping, intensity interferometry); and (7) diffraction-occultation by Solar System bodies. Even though these approaches serve their primary goals—exoplanet discovery and initial corse characterization—each remains orders of magnitude away from delivering a spatially resolved image. In every case, technology readiness falls short, and fundamental barriers leave them 2–5 orders of magnitude below the astrometric resolution and photon-budget thresholds needed to map an Earth analog even on decadal timescales. Ultimately, an in situ platform delivered to 0.1 AU of the target could, in principle, overcome both diffraction and photon-starvation limits—but such a mission far exceeds current propulsion, autonomy, and communications capabilities. By contrast, the Solar Gravitational Lens—providing on-axis gain of ∼10^10 and inherent µas-scale focusing once a spacecraft reaches 550 AU—remains the only near-term, scientifically and technologically viable means to acquire true, resolved surface images and spatially resolved spectroscopy of Earth-like exoplanets in our stellar neighborhood.
DOI: 10.48577/jpl.07xyb2
title: Powerful nuclear outflows and circumgalactic medium shocks driven by the most luminous quasar in the Universe

description: Understanding how gas flows into galaxies and how it is regulated by feedback from accreting black holes and star formation is critical to understanding the growth of galaxies [1–7]. The gas surrounding galaxies, or circumgalactic medium, encodes detailed information about these processes. It is extremely diffuse and historically has been studied in absorption along single sight lines to bright back- ground sources [8, 9]. Two-dimensional studies have been typically restricted to rest-frame UV emission lines, particularly hydrogen Ly-alpha fluorescence, around luminous accreting supermassive black holes, i.e., quasars. Understand- ing the dynamics and ionizing source using the Ly-alpha line alone is challenging [10–16]. Recently, the James Webb Space Telescope (JWST) has provided the necessary surface brightness sensitivity to detect emission from optical recombi- nation lines of hydrogen and collisionally excited metal lines on circumgalactic medium scales in the early Universe, when star-formation and quasar activity were vastly more intense [17]. Coupled with its high angular resolution, JWST can detect emissions originating from interactions between powerful quasar-driven outflows and the surrounding gas [18]. Here, we report on JWST detection of rest-frame optical emission from hydrogen, oxygen, sulfur, and nitrogen in the circumgalactic gas around the most luminous infrared galaxy known, which is seen 1.3 billion years after the Big Bang and hosts a dusty quasar. We map the emission out to distances beyond the stellar light extent of the quasar host galaxy using a mosaic observing strategy that covers a significantly larger field of view than previous spectroscopic studies with JWST, which were limited to galactic scales [17]. We detect ionized gas filaments on 40 kpc scales connecting a network of merging galaxies in a forming galaxy cluster. We find regions of low ionization consistent with large-scale shock excitation out to distances nearly 8 times the effective stellar radius of the quasar host galaxy. In the nuclear region, we find an ionized outflow driven by the quasar with velocities reaching 13,000 kms−1, one of the fastest discovered to date. The outflow has sufficient energy to explain the kinetic energy due to the turbulent motion of the gas on galactic and circumgalactic scales. This provides compelling evidence supporting long- standing theoretical predictions that powerful quasar outflows are a main driver in regulating the heating and accretion rate of gas onto massive central galaxies.
DOI: 10.48577/jpl.rka06g
title: A Scientific Community Vision for an Operational Multi-Tiered, Multi-Decadal Greenhouse Gas Observing System to Support Earth System Science and Climate Action

description: Greenhouse gas (GHG) emissions are accelerating, while natural carbon reservoirs are becoming increasingly vulnerable to anthropogenic pressures such as land-use and climate change, along with more frequent and intense climate extremes and wildfires. These changes are impacting humans, ecosystems, and natural resources worldwide. While the growing availability of Earth Observation (EO) data is addressing global GHG mitigation goals, its full potential to inform measurable climate action at local-to-global scales remains underutilized. Based on a workshop held in September 2024, we provide the rationale and scientific knowledge to more effectively implement an operational system for GHG monitoring to meet climate action needs of national and international stakeholders in support of the Paris Agreement. This system requires a paradigm shift in how EO data is shared, integrated, and operationalized — akin to advancements in numerical weather prediction. To guide the development of this system, we propose a multi-tiered global observing framework prioritizing: 1) increased temporal and vertical GHG column information (sub-daily vertical profiles) from surface, airborne, and spaceborne constellations; 2) expanded coverage of tropical and high latitude regions; and 3) continuous time series and data fusion from Lidar and SAR for accurate monitoring and mapping of ecosystem disturbance and growth. This operational system should prioritize rapid response, early warning and real-time climate risk assessment, and long-term monitoring of both gradual and abrupt changes in carbon emissions, exchanges, and stocks to inform near- and long-term GHG mitigation efforts. This system should also expand surface networks for oceanic and terrestrial/aquatic ecosystems to address under sampled regions, such as non-forest lands, rivers, wetlands, coastal zones, the Southern and Arctic Oceans, tropics, permafrost areas, and drylands.
DOI: 10.5281/zenodo.15722504
title: SMART-Seq3 dataset (5/5) - "Clonal memory of cell division in humans diverges between healthy haematopoiesis and acute myeloid leukaemia" - Donada et al 2025

description: Fastq files for the SMART-seq3 experiments described in the manuscript. Metadata available in a separate document. Part 5 of 5
DOI: 10.5281/zenodo.15722505
title: SMART-Seq3 dataset (5/5) - "Clonal memory of cell division in humans diverges between healthy haematopoiesis and acute myeloid leukaemia" - Donada et al 2025

description: Fastq files for the SMART-seq3 experiments described in the manuscript. Metadata available in a separate document. Part 5 of 5
DOI: 10.15468/dl.7quns7
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Abrocoma uspallata Braun & Mares, 2002"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0065366-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.wx7h9c
title: Occurrence Download

description: A dataset containing 43 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is BatMapPH: Philippine Bat Species Occurrence Database",
 "TaxonKey is Megaderma spasma (Linnaeus, 1758)"
 ]
}

 The dataset includes 43 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0065367-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ce5n3q
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Dorofeyukea kotschyi (Grunow) Kulikovskiy, Kociolek, Tusset & T.Ludwig, 2019",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "BasisOfRecord is one of (Specimen, Living Specimen, Observation, Human Observation, Machine Observation, Material sample, Literature Occurrence, Material citation, Occurrence evidence)",
 "Geometry POLYGON ((30.5701 -24.0715,25.5395 -24.0715,25.5395 -28.5786,30.5701 -28.5786,30.5701 -24.0715))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0065369-250525065834625/datasets/export for details.
DOI: 10.15468/dl.t37qcs
title: Occurrence Download

description: A dataset containing 52 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Cabassous chacoensis Wetzel, 1980"
 ]
}

 The dataset includes 52 records from 17 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0065368-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17605/osf.io/btw4c
title: UK Audiences and Post-COVID attendance of live virtual concerts

description: This project contains datasets from two surveys conducted in 2023 about UK audience attendance of in-person, livestream, and virtual music events.

Discussed in:
Whittaker, Laryssa, and Tom Wagner. 2025. ‘Emerging Patterns of Participation in Virtual Live Concerts: An Initial Study of UK Audiences Post-COVID’. IASPM Journal 15 (1): 58–80. https://doi.org/10.5429/2079.387(2025)v15i1.5en.
DOI: 10.15468/dl.byh7fc
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Dorofeyukea kotschyi (Grunow) Kulikovskiy, Kociolek, Tusset & T.Ludwig, 2019",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "BasisOfRecord is one of (Specimen, Living Specimen, Observation, Human Observation, Machine Observation, Material sample, Literature Occurrence, Material citation, Occurrence evidence)",
 "Geometry POLYGON ((27.1332 -20.158,25.5395 -23.2724,25.5395 -24.0715,30.5701 -24.0715,30.5701 -20.3186,29.6496 -19.6123,28.947 -19.4003,28.1821 -19.4609,27.6072 -19.7214,27.1332 -20.158))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0065370-250525065834625/datasets/export for details.
DOI: 10.15468/dl.sqnqnc
title: Occurrence Download

description: A dataset containing 71180 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Material sample)"
 ]
 }
 },
 "TaxonKey is Cinnyris afer (Linnaeus, 1766)",
 "Continent is one of (Africa)",
 "Year is greater than or equal to 1900"
 ]
}

 The dataset includes 71180 records from 28 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0065351-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.83qebs
title: Occurrence Download

description: A dataset containing 308 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is New Caledonia",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Scaevola beckii Zahlbr."
 ]
}

 The dataset includes 308 records from 17 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0065372-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.fu66b7
title: Occurrence Download

description: A dataset containing 111 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Bassaricyon alleni Thomas, 1880"
 ]
}

 The dataset includes 111 records from 28 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0065373-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.66narn
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Dorofeyukea kotschyi (Grunow) Kulikovskiy, Kociolek, Tusset & T.Ludwig, 2019",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "BasisOfRecord is one of (Specimen, Living Specimen, Observation, Human Observation, Machine Observation, Material sample, Literature Occurrence, Material citation, Occurrence evidence)",
 "Geometry POLYGON ((25.0214 -34.0501,25.5395 -34.1098,25.5395 -32.9007,20.509 -32.9007,20.509 -34.5676,20.524 -34.555,20.8859 -34.5419,20.9606 -34.4398,21.2995 -34.5131,21.5296 -34.4338,21.8696 -34.4439,22.0323 -34.2835,22.221 -34.2428,22.2566 -34.1304,22.5993 -34.0741,22.9652 -34.1674,23.4069 -34.1858,23.4955 -34.0792,23.6056 -34.0563,24.8471 -34.2877,24.9447 -34.2397,25.0214 -34.0501))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0065374-250525065834625/datasets/export for details.
DOI: 10.15468/dl.zebrkp
title: Occurrence Download

description: A dataset containing 43983 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "OccurrenceStatus is Present",
 "TaxonKey is Mammalia",
 "Year 1891-1907"
 ]
}

 The dataset includes 43983 records from 56 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0065371-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.