cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/q1zn-wv86
title: NOAA/WDS Paleoclimatology - Wiles - Wolverine Glacier - TSME - ITRDB AK030

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/qk96-pa79
title: NOAA/WDS Paleoclimatology - Wickman - Drumhill Ridge - PIPO - ITRDB OR031

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.15468/dl.hq7rzv
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Delosperma brunnthaleri",
 "Country is Spain",
 "HasCoordinate is true"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021254-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25921/qcmv-8j75
title: NOAA/WDS Paleoclimatology - Maruoka fire data from West Myrtle Creek (site 8) - IMPD USWMY001

description: Records of past fire occurrence from tree rings, charcoal found in lake sediments, and other proxies. Parameter keywords describe what was measured in this data set.  Additional summary information can be found in the abstracts of papers listed in the data set citations.  Additional information on the International Multiproxy Database (IMPD) data set procedures are also available.
DOI: 10.25921/qv9n-5z44
title: NOAA/WDS Paleoclimatology - Pederson - Montgomery Place - LITU - ITRDB NY030

description: Six water emergencies have occurred since 1981 for the New York City region (NYC) despite: 1) its perhumid climate, 2) substantial conservation of water since 1979 and 3) meteorological data showing little severe or extreme drought since 1970. We reconstruct 472 years of moisture availability for the NYC watershed to place these emergencies in long-term hydroclimatic context. Using nested reconstruction techniques, 32 tree-ring chronologies comprised of 12 species account for up to 66.2% of the average May-August Palmer Drought Severity Index. Verification statistics indicate good statistical skill from 1531-2003. The use of multiple tree species, including rarely-used species that can sometimes occur on mesic sites like Liriodendron tulipifera, Betula lenta and Carya spp., seems to aid reconstruction skill. Importantly, the reconstruction captures pluvial events in the instrumental record nearly as well as drought events and is significantly correlated to precipitation over much of the northeastern US. While the mid-1960s drought is a severe drought in the context of the new reconstruction, the region experienced repeated droughts of similar intensity, but greater duration during the 16th and 17th centuries. The full record reveals a trend towards more pluvial conditions since ca 1800 that is accentuated by an unprecedented, 43-year pluvial event that continues through 2011. In the context of the current pluvial, decreasing water usage, but increasing extra-urban pressures, it appears that the water supply system for the greater NYC region could be severely stressed if the current water boom shifts towards hydroclimatic regimes like the 16th and 17th centuries.
description: NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/qf1s-d057
title: NOAA/WDS Paleoclimatology - Potomac River 1000 Year May-September Streamflow Reconstruction

description: Mean May-September Potomac River streamflow was reconstructed from 950-2001 using a network of tree ring chronologies (n = 27) representing multiple species. We chose a nested principal components reconstruction method to maximize use of available chronologies backward in time. Explained variance during the period of calibration ranged from 20% to 53% depending on the number and species of chronologies available in each 25 year time step. The model was verified by two goodness of fit tests, the coefficient of efficiency (CE) and the reduction of error statistic (RE). The RE and CE never fell below zero, suggesting the model had explanatory power over the entire period of reconstruction. Beta weights indicated a loss of explained variance during the 1550-1700 period that we hypothesize was caused by the reduction in total number of predictor chronologies and loss of important predictor species. Thus, the reconstruction is strongest from 1700-2001. Frequency, intensity, and duration of drought and pluvial events were examined to aid water resource managers. We found that the instrumental period did not represent adequately the full range of annual to multidecadal variability present in the reconstruction. Our reconstruction of mean May-September Potomac River streamflow was a significant improvement over the Cook and Jacoby (1983) reconstruction because it expanded the seasonal window, lengthened the record by 780 years, and better replicated the mean and variance of the instrumental record. By capitalizing on variable phenologies and tree growth responses to climate, multispecies reconstructions may provide significantly more information about past hydroclimate, especially in regions with low aridity and high tree species diversity.
description: Reconstruction of May through September Potomac River streamflow 
for 950-2001 AD at the Point of Rocks, Maryland USGS streamflow gauge. 
The streamflow reconstruction is based on 27 tree ring chronologies 
representing multiple species from locations in the Appalachian 
Mountains and east to the Atlantic Coast in Maryland, Pennsylvania, 
West Virginia, and Virginia.  Some of the tree ring chronologies 
are available in the International Tree-Ring Data Bank: 
http://www.ncdc.noaa.gov/paleo/treering.html
DOI: 10.25921/qd5d-k222
title: NOAA/WDS Paleoclimatology - Mono Lake 300 Year Oxygen and Carbon Isotope Data

description: Mono Lake sediments have recorded five major oscillations in the  hydrologic balance between A.D. 1700 and 1941. These oscillations can be correlated with tree-ring-based oscillations in Sierra Nevada snowpack. Comparison of a tree-ring-based reconstruction of the Pacific Decadal Oscillation (PDO) index with a coral-based reconstruction of Subtropical South Pacific sea-surface temperature indicates a high degree of correlation between the two records during the past 300 yr. This suggests that the PDO has been a pan-Pacific phenomena for at least the past few hundred years. Major oscillations in the hydrologic balance of the Sierra  Nevada correspond to changes in the sign of the PDO with extreme droughts occurring during PDO maxima. Four droughts centered on A.D. 1710, 1770, 1850, and 1930 indicate PDO-related drought reoccurrence intervals ranging from 60 to 80 yr.
description: High resolution Mono Lake oxygen and carbon isotope data plus CaCO3 and Organic/Inorganic carbon content.  d18O data is interpreted as a moisture balance proxy, indicating lake volume changes related to the Pacific Decadal Oscillation.
DOI: 10.25921/q0n2-yg58
title: NOAA/WDS Paleoclimatology - Barefoot - Jeffries Smokehouse - PIPA - ITRDB NC2

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/qr76-x597
title: NOAA/WDS Paleoclimatology - Cook - Roaring Brook Keene Valley - TSCA - ITRDB NY010

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/qxrw-6457
title: NOAA/WDS Paleoclimatology - Woodhouse - Jefferson County Colorado Recollection - PIPO - ITRDB CO608

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.5281/zenodo.15555536
title: Simulation results for: Phase-Space Shaping in Wakefield Accelerators due to Betatron Cooling

description: This repository contains some of the simulation data presented in the recent article titled "Betatron cooling and phase-space ring formation in ultra-relativistic beams". The data are from quasi-3D particle-in-cell (PIC) simulations that investigate how radiation reaction in plasma wakefield accelerators leads to transversely structured, ring-shaped phase-space distributions. The simulations were performed using OSIRIS, a massively parallel and fully relativistic PIC code.

The dataset includes spatial density outputs, and raw particle data. All outputs are saved every 20th iteration relative to the original simulation cadence, resulting in a temporally subsampled dataset. Phase-space data are subsampled in particle number and represent a fraction of the simulated macro-particles.

Additionally, this repository includes results from a parameter scan used to validate theoretical predictions for the timescale of ring formation. These scans vary the initial beam energy, plasma density, and transverse beam size. Only spatial density outputs are provided for the scans, as they are sufficient for characterizing the ring evolution.

These datasets capture the essential dynamics of radiative phase-space structuring and provide a reference for comparison with theoretical models of betatron cooling.

More details on the simulations and the analysis of these results can be found in the corresponding article.
DOI: 10.5281/zenodo.15555537
title: Simulation results for: Phase-Space Shaping in Wakefield Accelerators due to Betatron Cooling

description: This repository contains some of the simulation data presented in the recent article titled "Betatron cooling and phase-space ring formation in ultra-relativistic beams". The data are from quasi-3D particle-in-cell (PIC) simulations that investigate how radiation reaction in plasma wakefield accelerators leads to transversely structured, ring-shaped phase-space distributions. The simulations were performed using OSIRIS, a massively parallel and fully relativistic PIC code.

The dataset includes spatial density outputs, and raw particle data. All outputs are saved every 20th iteration relative to the original simulation cadence, resulting in a temporally subsampled dataset. Phase-space data are subsampled in particle number and represent a fraction of the simulated macro-particles.

Additionally, this repository includes results from a parameter scan used to validate theoretical predictions for the timescale of ring formation. These scans vary the initial beam energy, plasma density, and transverse beam size. Only spatial density outputs are provided for the scans, as they are sufficient for characterizing the ring evolution.

These datasets capture the essential dynamics of radiative phase-space structuring and provide a reference for comparison with theoretical models of betatron cooling.

More details on the simulations and the analysis of these results can be found in the corresponding article.
DOI: 10.15468/dl.uac8gn
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Caprimulgiformes)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "Geometry POLYGON((-30 80,-20 80,-20 90,-30 90,-30 80))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021253-251009101135966/datasets/export for details.
DOI: 10.25921/qrtn-ph08
title: NOAA/WDS Paleoclimatology - St. George - Parker Farm - QUMA - ITRDB CANA185

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Raw Measurements file added 2019-01-27. NOAA Template Raw Measurements file added 2019-02-04.
DOI: 10.15468/dl.cvhcu9
title: Occurrence Download

description: A dataset containing 266393 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Ecuador",
 "GadmGid is ECU.10_1",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "Year 2020-2025"
 ]
}

 The dataset includes 266393 records from 51 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021165-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.z8qrr9
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Caprimulgiformes)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "Geometry POLYGON((-10 80,0 80,0 90,-10 90,-10 80))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021251-251009101135966/datasets/export for details.
DOI: 10.25921/qtfb-yk30
title: NOAA/WDS Paleoclimatology - Stahle - Capulin Volcano National Monument - PIED - ITRDB NM578

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/q5bs-xp48
title: NOAA/WDS Paleoclimatology - Borgaonkar - Tuni - PIRO - ITRDB INDI011

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Chronology file added 2018-12-19. NOAA Template Raw Measurements file added 2019-04-08.
DOI: 10.25921/qpwy-n684
title: NOAA/WDS Paleoclimatology - Dean - Navajo Mountain - PIPO - ITRDB UT021

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/q4p8-2d19
title: NOAA/WDS Paleoclimatology - Salar de Uyuni 170KYR Drill Hole Natural Gamma Radiation Data

description: Despite the hypothesized importance of the tropics in the global climate system, few tropical paleoclimatic records extend to periods earlier than the last glacial maximum (LGM), about 20,000 years before present. We present a well-dated 170,000-year time series of hydrologic variation from the southern hemisphere tropics of South America that extends from modern times through most of the penultimate glacial period. Alternating mud and salt units in a core from Salar de Uyuni, Bolivia reflect alternations between wet and dry periods. The most striking feature of the sequence is that the duration of paleolakes increased in the late Quaternary. This change may reflect increased precipitation, geomorphic or tectonic processes that affected basin hydrology, or some combination of both. The dominance of salt between 170,000 and 140,000 yr ago indicates that much of the penultimate glacial period was dry, in contrast to wet conditions in the LGM. Our analyses also suggest that the relative 
influence of insolation forcing on regional moisture budgets may have been stronger during the past 50,000 years than in earlier times. 
description: 188 m. cased drill hole from Salar de Uyuni salt flat, Bolivian Altiplano.  Natural gamma radiation (counts per second), used as a proxy for sediment mud/salt content and therefore playa lake level. Mud units contain abundant radiogenic K, U, and Th, whereas salt units are largely nonradioactive.
DOI: 10.25921/qr7c-nj48
title: NOAA/WDS Paleoclimatology - Wyse - Platte Plains - QURU - ITRDB MI018

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/q5kk-cz50
title: NOAA/WDS Paleoclimatology - Hillam - Trichay St. - QUSP - ITRDB BRIT3

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Raw Measurements file added 2019-02-05
DOI: 10.25921/qr9a-na19
title: NOAA/WDS Paleoclimatology - Eastern Equatorial Pacific(MD02-2529) 90KYr SST and SSS Reconstructions

description: Moisture transport from the Atlantic to the Pacific ocean across Central America leads to relatively high salinities in the North Atlantic Ocean and contributes to the formation of North Atlantic Deep Water. This deep water formation varied strongly between Dansgaard/Oeschger interstadials and Heinrich events - millennial-scale abrupt warm and cold events, respectively, during the last glacial period. Increases in the moisture transport across Central America have been proposed to coincide with northerly shifts of the Intertropical Convergence Zone and with Dansgaard/Oeschger interstadials, with opposite changes for Heinrich events. Here we reconstruct sea surface salinities in the eastern equatorial Pacific Ocean over the past 90,000 years by comparing palaeotemperature estimates from alkenones and Mg/Ca ratios with foraminiferal oxygen isotope ratios that vary with both temperature and salinity. We detect millennial-scale fluctuations of sea surface salinities in the eastern equatorial Pacific Ocean of up to two to four practical salinity units. High salinities are associated with the southward migration of the tropical Atlantic Intertropical Convergence Zone, coinciding with Heinrich events and with Greenland stadials. The amplitudes of these salinity variations are significantly larger on the Pacific side of the Panama isthmus, as inferred from a comparison of our data with a palaeoclimate record from the Caribbean basin. We conclude that millennial-scale fluctuations of moisture transport constitute an important feedback mechanism for abrupt climate changes, modulating the North Atlantic freshwater budget and hence North Atlantic Deep Water formation.