cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48577/jpl.c9jqyr
title: Comparison of ventifact orientations and recent wind direction indicators on the floor of Jezero crater, Mars

description: Wind-abraded rocks and aeolian bedforms have been observed at the Mars 2020 Perseverance landing site, providing evidence for recent and older wind directions. This study reports orientations of aeolian features measured in Perseverance images to infer formative wind directions. It compares these measurements with orbital observations, climate model predictions, and wind data acquired by the Mars Environmental Dynamics Analyzer. Three-dimensional orientations of flute textures on rocks, regolith wind tails extending from behind obstacles, and other aeolian features were measured using Digital Terrain Models (DTMs) derived from Mastcam-Z and navigation camera (Navcam) stereo images. Orientations of rock flutes measured in images acquired through Sol (martian day) 400 yielded a mean azimuth of 94° ± 7° (wind from the west). However, similar measurements of regolith wind tails indicate that recent sand-driving winds have been blowing from the east-southeast, nearly the opposite direction (mean azimuth = 285° ± 15°). Atmospheric modeling generally predicts net annual sand transport from the east-southeast at present, consistent with Perseverance regolith wind tail and orbital observations. The orientation of ventifact flutes thus suggests that they were formed under a different climate regime. Differences in orientations of recent and paleo-wind indicators have been noted at other Mars landing sites and may result from major orbital/axial changes that can cause significant changes in atmospheric circulation. Orientation differences between modern and older wind direction indicators at Jezero are useful clues to the climate history of the region.
DOI: 10.48577/jpl.huhlcf
title: IEEE Aerospace Conference Presentation Slides for URS312247

description: No abstract available.
DOI: 10.15468/dl.pa33xg
title: Occurrence Download

description: A dataset containing 7585 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Ceratina nanula Cockerell, 1897"
 ]
}

 The dataset includes 7585 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001518-160118175350007/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/independent-c69-45574
title: Reviews / summaries of complaints & personnel files (1987-1990), 1991-05-24

description: Internal Affairs Division investigative file - research forms, random sample of complaints (1987-1990), 1991 May 24. PART OF A SERIES: To better understand how LAPD management reacts to problem officers, Skadden, Arps, Slate, Meagher & Flom examined the Department's procedures regarding the identification, documentation, and response to personnel complaints. The series includes memoranda and correspondence; attorney notes; materials related to the firm's administrative capacities, including staff rosters and work plans; flow charts that illustrate the LAPD's structure and organization; and draft copies of the firm's contributions to the Commission report.
DOI: 10.48577/jpl.9zgcjj
title: M2020 Rover Heater Energy Correction Factors for Improving Mission Operations

description: No abstract available.
DOI: 10.15468/dl.843cmj
title: Occurrence Download

description: A dataset containing 98 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Month is October",
 "OccurrenceStatus is Present",
 "TaxonKey is Hydrochoerus hydrochaeris (Linnaeus, 1766)",
 "Year 2023-2023"
 ]
}

 The dataset includes 98 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001307-240216155721649/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.9ydo6y
title: Modeling global carbon and water fluxes and hyperspectral canopy radiative transfer simultaneously using a next generation land surface model—CliMA Land

description: Recent progress in satellite observations has provided unprecedented opportunities to monitor vegetation activity at global scale. However, a major challenge in fully utilizing remotely sensed data to constrain land surface models (LSMs) lies in inconsistencies between simulated and observed quantities. For example, gross primary productivity (GPP) and transpiration (T) that traditional LSMs simulate are not directly measurable from space, although they can be inferred from spaceborne observations using assumptions that are inconsistent with those LSMs. In comparison, canopy reflectance and fluorescence spectra that satellites can detect are not modeled by traditional LSMs. To bridge these quantities, we presented an overview of the next generation land model developed within the Climate Modeling Alliance (CliMA), and simulated global GPP, T, and hyperspectral canopy radiative transfer (RT; 400–2500 nm for reflectance, 640–850 nm for fluorescence) at hourly time step and 1◦ spatial resolution using CliMA Land. CliMA Land predicts vegetation indices and outgoing radiances, including solar-induced chlorophyll fluorescence (SIF), normalized difference vegetation index (NDVI), enhanced vegetation index (EVI), and near infrared reflectance of vegetation (NIRv) for any given sun-sensor geometry. The spatial patterns of modeled GPP, T, SIF, NDVI, EVI, and 37 NIRv correlate significantly with existing data-driven products (mean R2 = 0.777 for 9 products). CliMA Land would be also useful in high temporal resolution simulations, e.g., providing insights into when GPP, SIF, and NIRv diverge.
DOI: 10.48577/jpl.fyldcv
title: Modeling of Scattering by Dense Random Media Consisting of Particle Clusters with DMRT Bicontinuous

description: In this paper, we developed the dense media radiative transfer model (DMRT) for random media with densely packed particle clusters. The dense media are computer-generated by applying the bicontinuous random media characterization. The microstructure of the media is controlled by two parameters: mean grain size 〈𝜻〉 and aggregation parameter 𝒃. Phase matrices and extinction coefficients are computed with full wave simulations. These are then substituted into radiative transfer (RT) equations to obtain backscattering coefficients of the dense media layer with particle clusters. The backscattering has a weaker frequency dependence (e.g. ~2.6 power for 𝒃=𝟎.𝟒) than the Rayleigh scattering of 4th power. Backscattering results exhibit strong co-, cross-polarization (pol), and ratio of cross- to co-polarization. For applications to remote sensing of terrestrial snow at C band, results of DMRT simulations show that cross-polarization of snow volume scattering can be larger than that of soil surface scattering. Recently, this property of strong cross polarization has become a useful satellite remote sensing technique for global retrieval of snow depth. Comparisons of DMRT results are made with ESA Satellite Sentinel 1 C band data and ground-based radar observations. The calculated backscatter is in good agreement with radar measurements for both the co- and cross-polarization.
DOI: 10.25549/independent-c69-45378
title: Reviews / summaries of complaints & personnel files (1987-1990), 1991-05-24

description: Internal Affairs Division investigative file - research forms, random sample of complaints (1987-1990), 1991 May 24. PART OF A SERIES: To better understand how LAPD management reacts to problem officers, Skadden, Arps, Slate, Meagher & Flom examined the Department's procedures regarding the identification, documentation, and response to personnel complaints. The series includes memoranda and correspondence; attorney notes; materials related to the firm's administrative capacities, including staff rosters and work plans; flow charts that illustrate the LAPD's structure and organization; and draft copies of the firm's contributions to the Commission report.
DOI: 10.15468/dl.z9pxu7
title: Occurrence Download

description: A dataset containing 3322 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Bombus ternarius Say, 1837"
 ]
}

 The dataset includes 3322 records from 22 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001518-160311141623029/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.bvqndk
title: Research organizations need the co-production of knowledge for climate adaptation

description: As climate change progresses globally, regional ecosystems are responding outside limits forecasted by many Earth system models. Despite years of progress, Earth science from Western academic institutions is challenged to capture change across scales. As these gaps emerge, Western scientists are recognizing that Indigenous science integrates millennia of observations and knowledge at regional scales. As Indigenous knowledge has not been adequately considered within the Western scientific community, this key regional information has been lost to Western scientific progress. With the consequences of climate change now severely felt in all ecosystems, the co-production of knowledge between Western and Indigenous knowledge practitioners is necessary to understand our changing Earth system.
DOI: 10.15468/dl.umkfqg
title: Occurrence Download

description: A dataset containing 11 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Dendrobium obovatum Schltr."
 ]
}

 The dataset includes 11 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0169850-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.r5s2ef
title: Particle Entrainment and Rotating Convection in Enceladus’ Ocean

description: Observations from Cassini have identified nanometer-sized silica grains in Saturn’s E-ring although their origin is unclear. Tidal deformation within Enceladus’ silicate core has been predicted to generate hot hydrothermal fluids that rise from the core-ocean boundary and traverse the subsurface ocean. This raises the possibility that the particles observed by Cassini could have been produced by hydrothermal alteration and ejected via the south polar plumes. Here, we use an analytical model to quantify potential for particle entrainment in Enceladus’ ocean. We use scaling relations to characterize ocean convection and define a parameter space that enables particle entrainment. We find that both the core-ocean heat fluxes and the transport timescale necessary to drive oceanic convection and entrain particles of the observed sizes are consistent with observations and predictions from existing thermal models. We conclude that hydrothermal alteration at Enceladus’ seafloor could indeed be the source of silica particles in Saturn’s E-ring
DOI: 10.25549/independent-c69-45567
title: Reviews / summaries of complaints & personnel files (1987-1990), 1991-05-24

description: Internal Affairs Division investigative file - research forms, random sample of complaints (1987-1990), 1991 May 24. PART OF A SERIES: To better understand how LAPD management reacts to problem officers, Skadden, Arps, Slate, Meagher & Flom examined the Department's procedures regarding the identification, documentation, and response to personnel complaints. The series includes memoranda and correspondence; attorney notes; materials related to the firm's administrative capacities, including staff rosters and work plans; flow charts that illustrate the LAPD's structure and organization; and draft copies of the firm's contributions to the Commission report.
DOI: 10.48577/jpl.yaudxe
title: Simulated Clear-Sky Water Vapor and Temperature Retrievals from PREFIRE Measurements

description: The Polar Radiant Energy in the Far InfraRed Experiment (PREFIRE) mission willmeasure the Earth’s emission at wavelengths ranging from 3-54 `um. The pre-launch clear-sky retrieval algorithm, evaluated with simulated test data, indicates that PREFIRE measurements will be valuable for retrieving atmospheric water vapor and temperature profiles. Far infrared measurements provide unique retrieval information, indicated by the high ranking of select FIR channels as primary contributors to the total degrees of freedom for signal (DFS). In utilizing all the PREFIRE channels, the average total DFS of 4 test regions ranges from 1.90 - 4.71. The information content increases with higher column water vapor and in the presence of near surface temperature inversions. Using the DFS profiles for guidance, the retrieval concentrates information into 7 distinct layers to reduce the retrieval uncertainty per layer. Sensitivity tests indicate forward model error due to surface emissivity uncertainty results in about a 9% increase in column water vapor uncertainty. The clear-sky retrieval is sensitive to the presence of undetected ice clouds, especially those with optical depths larger than 0.2. Hence, in addition to a separate PREFIRE cloud mask, optimal estimation retrieval metrics are explored as possible indicators of cloudy scenes.
DOI: 10.48577/jpl.nkqazk
title: Statistics of electron-multiplying charge-coupled devices

description: EMCCDs are efficient imaging devices for low surface brightness UV astronomy. The large amplification allows photon counting, the detection of events versus non-events. This paper provides the statistics of the observation process, the photon-counting process, the amplification, process, and the compression. The expression for the signal-to-noise of photon counting is written in terms of the polygamma function. The optimal exposure time is a function of the clock-induced charge. The exact distribution of amplification process is a simple-to-compute powered matrix. The optimal cutoff for comparing to the read noise is close to a strong function of the read noise and a weak function of the electron-multiplying gain and photon rate. A formula gives the expected compression rate.
DOI: 10.48577/jpl.axw2ma
title: Results of Radiation-Induced Conductivity Testing of Europa Clipper Dielectric Materials

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

description: A dataset containing 153 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Potamopyrgus antipodarum (J.E.Gray, 1843)",
 "Country is New Zealand"
 ]
}

 The dataset includes 153 records from 14 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001518-160509122628363/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/independent-c69-45450
title: Reviews / summaries of complaints & personnel files (1987-1990), 1991-05-24

description: Internal Affairs Division investigative file - research forms, random sample of complaints (1987-1990), 1991 May 24. PART OF A SERIES: To better understand how LAPD management reacts to problem officers, Skadden, Arps, Slate, Meagher & Flom examined the Department's procedures regarding the identification, documentation, and response to personnel complaints. The series includes memoranda and correspondence; attorney notes; materials related to the firm's administrative capacities, including staff rosters and work plans; flow charts that illustrate the LAPD's structure and organization; and draft copies of the firm's contributions to the Commission report.
DOI: 10.48577/jpl.yzytzq
title: Assessing Cost Drivers for Mars Small Spacecraft Missions

description: No abstract available.
DOI: 10.15468/dl.73f9he
title: Occurrence Download

description: A dataset containing 105 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Month is July",
 "OccurrenceStatus is Present",
 "TaxonKey is Hydrochoerus hydrochaeris (Linnaeus, 1766)",
 "Year 2023-2023"
 ]
}

 The dataset includes 105 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001302-240216155721649/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/independent-c69-45483
title: Reviews / summaries of complaints & personnel files (1987-1990), 1991-05-24

description: Internal Affairs Division investigative file - research forms, random sample of complaints (1987-1990), 1991 May 24. PART OF A SERIES: To better understand how LAPD management reacts to problem officers, Skadden, Arps, Slate, Meagher & Flom examined the Department's procedures regarding the identification, documentation, and response to personnel complaints. The series includes memoranda and correspondence; attorney notes; materials related to the firm's administrative capacities, including staff rosters and work plans; flow charts that illustrate the LAPD's structure and organization; and draft copies of the firm's contributions to the Commission report.
DOI: 10.48577/jpl.qqc6px
title: Overview of Cloud Functionalities for SWOT and other NASA Earth Observations

description: No abstract available.
DOI: 10.48577/jpl.iq0qbq
title: Antenna Design

description: No abstract available.
DOI: 10.48577/jpl.ar3ucb
title: Angular Momentum Distributions for Observed and Modeled Exoplanetary Systems

description: No abstract available.
DOI: 10.15468/dl.835d4u
title: Occurrence Download

description: A dataset containing 610 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Melipona beecheii Bennett, 1831",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 610 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001518-160526112335914/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.5pigsh
title: SatERR: A Community Error Inventory for Satellite Microwave Observation Error Representation and Uncertainty Quantification

description: Satellite observations are indispensable for weather forecasting, climate change monitoring, and environmental studies.Understanding and quantifying errors and uncertainties associated with satellite observations are essential for hardware calibration, dataassimilation, and developing environmental and climate data records. Satellite observation errors can be classified into four categories:measurement, observation operator, representativeness, and preprocessing errors. Current methods for diagnosing observation errorsstill yield large uncertainties due to these complex errors. When simulating satellite errors, empirical errors are usually used, which donot always accurately represent the truth. We address these challenges by developing an error inventory simulator, the Satellite ErrorRepresentation and Realization (SatERR). SatERR can simulate a wide range of observation errors, from instrument measurement errors tomodel assimilation errors. Most of these errors are based on physical models, including existing and newly-developed algorithms. SatERRtakes a bottom-up approach: Errors are generated from root sources and forward propagate through radiance and science products. This isdifferent from, but complementary to, the top-down approach of current diagnostics, which inversely solves unknown errors. The impactof different errors can be quantified and partitioned, and a ground-truth testbed can be produced to test and refine diagnostic methods.SatERR is a community error inventory, open-source on GitHub, which can be expanded and refined with input from engineers, scientists,and modelers. This debut version of SatERR is centered on microwave sensors, covering traditional large satellites and small satellitesoperated by NOAA, NASA, and EUMETSAT.
DOI: 10.15468/dl.krv25n
title: Occurrence Download

description: A dataset containing 620 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Tillandsia paucifolia Baker"
 ]
}

 The dataset includes 620 records from 35 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0013023-240202131308920/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/independent-c69-45832
title: Reviews / summaries of complaints & personnel files (1989-1990), 1991-06-21

description: Memo - re: internal affairs division review of personnel complaints - from: Thomas K Braun; to: Mr. Drooyan; IAD investigative file - research forms (1989-1990), 1991 June 21. PART OF A SERIES: To better understand how LAPD management reacts to problem officers, Skadden, Arps, Slate, Meagher & Flom examined the Department's procedures regarding the identification, documentation, and response to personnel complaints. The series includes memoranda and correspondence; attorney notes; materials related to the firm's administrative capacities, including staff rosters and work plans; flow charts that illustrate the LAPD's structure and organization; and draft copies of the firm's contributions to the Commission report.
DOI: 10.48577/jpl.8fa9dn
title: The Europa Clipper Gravity and Radio Science Investigation

description: The primary objective of the Europa Clipper mission is to assess the habitability of Europa, an overarching goal that rests on improving our understanding of Europa’s interior structure, composition, and geologic activity. Here we describe the Gravity and Radio Science (G/RS) investigation. The primary measurement, the gravitational tidal Love number k2, will be an independent diagnostic of the presence of a global subsurface ocean, but G/RS will make a number of other key measurements related to Europa’s deep interior, silicate mantle-ocean interface, ice shell, ionosphere, and plasma environment. Although radio science is common to many missions, Europa Clipper’s orbit and spacecraft configuration during flybys present special challenges for the design of this experiment. The information obtained through G/RS will be complementary to the measurements by the other instruments onboard Europa Clipper, and their combined analysis will refine the geophysical understanding of Europa necessary to best assess its potential habitability.
DOI: 10.48577/jpl.jnf615
title: Euclid/Roman Cosmology Complementarity

description: No abstract available.
DOI: 10.15468/dl.3xfbws
title: Occurrence Download

description: A dataset containing 147 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Scomberomorus cavalla (Cuvier, 1829)",
 "Country is Mexico"
 ]
}

 The dataset includes 147 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001518-170714134226665/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/independent-c69-45614
title: Reviews / summaries of complaints & personnel files (1987-1990), 1991-05-24

description: Internal Affairs Division investigative file - research forms, random sample of complaints (1987-1990), 1991 May 24. PART OF A SERIES: To better understand how LAPD management reacts to problem officers, Skadden, Arps, Slate, Meagher & Flom examined the Department's procedures regarding the identification, documentation, and response to personnel complaints. The series includes memoranda and correspondence; attorney notes; materials related to the firm's administrative capacities, including staff rosters and work plans; flow charts that illustrate the LAPD's structure and organization; and draft copies of the firm's contributions to the Commission report.