cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.zfub5q
title: Occurrence Download

description: A dataset containing 28 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Artabotrys spinosus"
 ]
}

 The dataset includes 28 records from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005714-260221153910048/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/wpacards-c8-121488
title: WPA household census for 1614 GOLDEN GATE AVENUE, Los Angeles

description: The Works Progress Administration Los Angeles Household Census Cards collection dates from 1939. The physical cards which number nearly half a million items are owned by the USC Libraries. More than a quarter of the collection has been digitized.The household survey cards (or "dwelling schedules"), one for each street address in greater Los Angeles, document a wide variety of information ranging from the type of dwelling, the value of the property, the monthly rent or mortgage, to whether or not there were flush toilets. While these cards form the bulk of the collection, other digitized documents include "block face cards" and "block lists" -- documenting the census process.
DOI: 10.15468/dl.yajmz2
title: Occurrence Download

description: A dataset containing 5403 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Harpagus bidentatus",
 "Year is greater than or equal to 2000",
 "Year is less than or equal to 2026",
 "Country is Colombia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 5403 records from 46 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005715-260221153910048/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/wpacards-c8-121491
title: WPA household census for 1618 GOLDEN GATE AVENUE, Los Angeles

description: The Works Progress Administration Los Angeles Household Census Cards collection dates from 1939. The physical cards which number nearly half a million items are owned by the USC Libraries. More than a quarter of the collection has been digitized.The household survey cards (or "dwelling schedules"), one for each street address in greater Los Angeles, document a wide variety of information ranging from the type of dwelling, the value of the property, the monthly rent or mortgage, to whether or not there were flush toilets. While these cards form the bulk of the collection, other digitized documents include "block face cards" and "block lists" -- documenting the census process.
DOI: 10.15468/dl.c2hy6e
title: Occurrence Download

description: A dataset containing 187605 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Crotophaga ani",
 "Country is Colombia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 187605 records from 516 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005625-260221153910048/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ff2rqg
title: Occurrence Download

description: A dataset containing 813 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Technomyrmex jocosus",
 "Country is New Zealand",
 "HasCoordinate is true"
 ]
}

 The dataset includes 813 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009854-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25921/tx20-0h80
title: NOAA/WDS Paleoclimatology - Stambaugh - Gee Creek - PIEC - ITRDB AR074

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/ty0n-v510
title: NOAA/WDS Paleoclimatology - Stokes - Mayer - PIPO - ITRDB AZ026

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/txqa-e823
title: NOAA/WDS Paleoclimatology - Touchan - Göller - PIBR - ITRDB TURK036

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 2019-02-05.
DOI: 10.25921/tc81-tf95
title: NOAA/WDS Paleoclimatology - Lawrence et al. 2006 Eastern Equatorial Pacific 5MMYr Alkenone SST Reconstruction

description: A tropical Pacific climate state resembling that of a permanent El Niņo is hypothesized to have ended as a result of a reorganization of the ocean heat budget ~3 million years ago, a time when large ice sheets appeared in the high latitudes of the Northern Hemisphere. We report a high-resolution alkenone reconstruction of conditions in the heart of the eastern equatorial Pacific (EEP) cold tongue that reflects the combined influences of changes in the equatorial thermocline, the properties of the thermocline's source waters, atmospheric greenhouse gas content, and orbital variations on sea surface temperature (SST) and biological productivity over the past 5 million years. Our data indicate that the intensification of Northern Hemisphere glaciation ~3 million years ago did not interrupt an almost monotonic cooling of the EEP during the Plio-Pleistocene. SST and productivity in the eastern tropical Pacific varied in phase with global ice volume changes at a dominant 41,000-year (obliquity) frequency throughout this time. Changes in the Southern Hemisphere most likely modulated most of the changes observed.
DOI: 10.25921/txm9-sb25
title: NOAA/WDS Paleoclimatology - Hostetler and Mix 1999 LGM SST Reconstruction Grid

description: The CLIMAP project's reconstruction of past sea surface temperature inferred limited ice-age cooling in the tropical oceans. This conclusion has been controversial, however, because of the greater cooling indicated by other terrestrial and ocean proxy data. A new faunal sea surface temperature reconstruction, calibrated using the variation of foraminiferal species through time, better represents ice-age faunal assemblages and so reveals greater cooling than CLIMAP in the equatorial current systems of the eastern Pacific and tropical Atlantic oceans. Here we explore the climatic implications of this revised sea surface temperature field for the Last Glacial Maximum using an atmospheric general circulation model. Relative to model results obtained using CLIMAP sea surface temperatures, the cooler equatorial oceans modify seasonal air temperatures by 1–2 °C or more across parts of South America, Africa and southeast Asia and cause attendant changes in regional moisture patterns. In our simulation of the Last Glacial Maximum, the Amazon lowlands, for example, are cooler and drier, whereas the Andean highlands are cooler and wetter than the control simulation. Our results may help to resolve some of the apparent disagreements between oceanic and continental proxy climate data. Moreover, they suggest a wind-related mechanism for enhancing the export of water vapour from the Atlantic to the Indo–Pacific oceans, which may link variations in deep-water production and high-latitude climate changes to equatorial sea surface temperatures.
description: Hostetler and Mix (1999) used the grid files as a boundary condition for an atmospheric general circulation model. Mix et al.(1999) developed the temperature estimates, and created the gridded data sets.
DOI: 10.25921/t2kx-mf13
title: NOAA/WDS Paleoclimatology - Touchan et al. 2005 Eastern Mediterranean Spring/Summer Precipitation Reconstruction

description: This study represents the first large-scale systematic dendroclimatic sampling focused on developing chronologies from different species in the eastern Mediterranean region. Six reconstructions were developed from chronologies ranging in length from 115 years to 600 years. The first reconstruction (1885–2000) was derived from principal components (PCs) of 36 combined chronologies. The remaining five, 1800–2000, 1700–2000, 1600–2000, 1500–2000 and 1400–2000 were developed from PCs of 32, 18, 14, 9, and 7 chronologies, respectively. Calibration and verification statistics for the period 1931–2000 show good levels of skill for all reconstructions. The longest period of consecutive dry years, defined as those with less than 90% of the mean of the observed May–August precipitation, was 5 years (1591–1595) and occurred only once during the last 600 years. The longest reconstructed wet period was 5 years (1601–1605 and 1751–1755). No long term trends were found in May–August precipitation during the last few centuries. Regression maps are used to identify the influence of large-scale atmospheric circulation on regional precipitation. In general, tree-ring indices are influenced by May–August precipitation, which is driven by anomalous below (above) normal pressure at all atmospheric levels and by convection (subsidence) and small pressure gradients at sea level. These atmospheric conditions also control the anomaly surface air temperature distribution which indicates below (above) normal values in the southern regions and warmer (cooler) conditions north of around 40°N. A compositing technique is used to extract information on large-scale climate signals from extreme wet and dry summers for the second half of the twentieth century and an independent reconstruction over the last 237 years. Similar main modes of atmospheric patterns and surface air temperature distribution related to extreme dry and wet summers were identified both for the most recent 50 years and the last 237 years. Except for the last few decades, running correlation analyses between the major European-scale circulation patterns and eastern Mediteranean spring/summer precipitation over the last 237 years are non-stationary and insignificant, suggesting that local and/or sub-regional geographic factors and processes are important influences on tree-ring variability over the last few centuries.
DOI: 10.25921/td9f-v431
title: NOAA/WDS Paleoclimatology - Wickman - Big Sink - PIPO - ITRDB OR038

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/t2hd-w222
title: NOAA/WDS Paleoclimatology - Gong and Luterbacher 2008 W. Indian Ocean Low-level Cross-equatorial Jet Reconstruction

description: Using monthly-seasonally resolved coral proxies from the Indian Ocean basin, we statistically reconstruct the June–July–August (JJA) low-level jet in western Indian Ocean from 1660−1957 with skillful estimates for high- and low-frequencies. The El Niño/Southern Oscillation (ENSO) signals are reasonably captured. The strength of the jet significantly increases from the late 17th century to late 19th century. The decreasing in reconstructed jet in 20th century disagrees with previous studies which indicated an enhancement of Southern Asian summer monsoon (SASM) in association with the rapid global warming. The jet reconstructions are useful for understanding of SASM variability and the validation of historical monsoon simulation.
DOI: 10.25921/tpq2-cp43
title: NOAA/WDS Paleoclimatology - Palmer Deep, Antarctica Holocene TEX86 Sea Surface Temperature Data

description: A detailed TEX86 sea surface temperature record is presented from a well-dated hemipelagic sedimentary sequence drilled in Palmer Deep, on the western Antarctic Peninsula continental margin (ODP Hole 1098B; 1010 m). To test the regional utility of the TEX86 proxy, surface sediment samples with paired CTD casts were acquired and results show the promise of TEX86 in this region.  Down core TEX86-derived temperatures at Site 1098 range between 0 and 6°C during the Holocene (0-12 ky). A long-term Holocene cooling of ~3°C is suggested and is punctuated by millennial scale temperature variability. The TEX86 temperature record from Palmer Deep is consistent with temperature trends recorded in west Antarctic ice cores and southeast Pacific marine sediments. This observation is consistent with hypotheses that favor atmospheric (via the Southern Hemisphere westerly winds), not thermohaline, control over the hydrography of Palmer Deep.
description: TEX86 Holocene sea surface temperature record from Palmer Deep, Antarctica. ODP Site 1098: 64°51.71'S, 64°12'W. Updated sea surface reconstruction was published by Shevenell et al. 2011 and is available at: https://doi.org/10.1594/PANGAEA.769699.
DOI: 10.15468/dl.myqghs
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Apterygiformes)",
 "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 10,40 10,40 20,30 20,30 10))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024545-251009101135966/datasets/export for details.
DOI: 10.25921/tj80-9468
title: NOAA/WDS Paleoclimatology - Lake A, Ellesmere Island 1,000 Sedimentary Pellet Data

description: Sediment aggregates ("sedimentary pellets") within the sedimentary record of Lake A (83deg00'N, 75deg30'W), Ellesmere Island, Canada, are used to construct a 1000 year proxy record of ice-cover extent and dynamics on this perennially ice-covered, High Arctic lake. These pellets are interpreted to form during fall or early winter when littoral sediment adheres to ice forming around the lake's periphery or during summer through the development of anchor ice. The sediment likely collects in ice interstices and is concentrated in the 
upper ice layers through summer surface ice melt and winter basal ice growth. The pellets remain frozen in the ice until a summer or series of summers with reduced ice cover allows for their deposition across the lake basin. Sedimentary pellet frequency within multiple sediment cores is used to develop a chronology of ice-cover fluctuations. This proxy ice-cover record is largely corroborated by a record of unusual sedimentation in Lake A involving iron-rich, 
dark-orange to red laminae overlying more diffuse laminae with a lighter hue. This sediment sequence is hypothesized to represent years with reduced ice cover through increased chemocline ventilation and iron deposition. During the past millennium, the most notable period of inferred reduced ice cover is ca. 1891 AD to present. Another period of ice cover mobility is suggested ca. 1582-1774 AD, while persistent ice cover is inferred during the 1800s and prior to 1582 AD. The proxy ice-cover record corresponds well with most regional meltseason proxy temperature and paleoecological records, especially during the 1800s and 1900s.


description: This is a 989-year record of mean annual macroscopic (visible with the unaided eye) sedimentary pellet frequency between marker bed intervals (dated using an age-depth model based on a varve chronology), incorporating data from 11 sediment cores from Lake A, Ellesmere Island.
DOI: 10.25921/thsv-9425
title: NOAA/WDS Paleoclimatology - Law Dome, Antarctica High Resolution 1999-2009 10Be Data, Revised Dating

description: Cosmogenic 10Be measured in polar ice cores has important application in the reconstruction of past solar activity. However, the processes controlling its atmospheric transport and deposition to the ice sheets are not fully understood. Here we use the seasonal changes in 10Be concentrations in a 10 year monthly resolved ice core record from the Law Dome site (East Antarctica) in conjunction with ECHAM5-HAM general circulation model (GCM) simulations of 10Be and 7Be deposition as tools to examine this problem. Maximum 10Be concentrations are observed in the ice core during the austral late summer to early autumn (summer-autumn), while minimum concentrations are observed during the austral winter. The GCM simulations, corroborated by earlier observations of 10Be:7Be ratios in Antarctica from the Georg von Neumayer air sampling station, suggest that the 10Be concentration maximum is linked to direct input of stratospheric 10Be from the Antarctic stratosphere to the lower levels of the Antarctic troposphere during the austral summer-autumn. This result contrasts with the modeled transport of 10Be to Greenland, where the seasonal maximum in stratospheric input is seen in the late winter to spring, synchronous with the timing of the seasonal maximum in midlatitude stratosphere to troposphere exchange. Our results suggest that a different combination of processes is responsible for the transport of 10Be to the Antarctic and Greenland ice sheets.
description: Revised dating from Pedro et al., J. Geophys. Res., 2011. Reference for the original data: Pedro et al., Climate of the Past 7:707

This record comprises composite 10Be concentrations from three Law Dome ice cores (DSS0506-core, DSS0809-core and DSS0910-core). Sample dating is revised from that presented in Pedro et al., 7, 707-721, 2011 by accounting for sub-seasonal variability in snow accumulation. The accumulation record was derived from the European Center for Medium-Range Weather Forecasts Interim Reanalysis (ERA-Interim). See Appendix 1 of Pedro et al., J. Geophys. Res. 116, D23120, 2011 for details of method. 

Note: All measurements are calibrated to the NIST SRM 4325 10Be standard reference material, utilising the Nishiizumi et al. (2007) 10Be:9Be ratio of (2.79 +/- 0.02) x 10^(-11)
DOI: 10.25921/t15n-2016
title: NOAA/WDS Paleoclimatology - Spötl et al. 2008 Spannagel Cave, Austria MIS 7 Stable Isotope Data

description: Here we present the first U-series dated stable oxygen isotope record in continental Europe that covers the entire tripartite Penultimate Interglacial, i.e. Marine Isotope Stages 7.5 to 7.1. This record was obtained from a U-rich stalagmite from Spannagel Cave in the Austrian Alps which is largely devoid of kinetic isotope fractionation effects which comprised previously studied flowstone from this site. Composed of dense, columnar calcite this speleothem apparently grew without significant interruption for ca. 50 ka, albeit at a very slow rate. The age model was established based on 23 individual U/Th TIMS dates using a combination of a Bayesian approach, which includes additional information using stratigraphic constraints, and the mixed-effect regression model. The resulting record shows three prominent maxima in d18O (MIS 7.5, 7.3 and 7.1) separated by a long earlier and a shorter later cold period (MIS 7.4 and 7.2, respectively). The mid points of the transitions into the three warm phases occurred at 240 ą 3, 215 ą 2 and 200 ą 3 ka and the MIS 7/6 transition was dated to 190 ą 3 ka. The timing of these climate transitions is supported by other samples from the same cave and agrees within analytical uncertainties with U/Th-dated evidence from corals, marine aragonitic sediments and submerged stalagmites, as well as with orbitally tuned deep-sea records. Good agreement was also found with new speleothem data from China as far as MIS 7.1 and 7.5 are concerned, whereas MIS 7.3 apparently started earlier and MIS 7.2 lasted longer than in the Alps. Comparing the European speleothem data with Antarctic ice cores reveals obvious differences in age (the latter suggesting an earlier start and a generally shorter duration of the three warm episodes). In essence, this study underscores the great potential of speleothems as accurate and precise chronometers of Pleistocene climate change and emphasizes the need for similar studies in other continents (including submerged caves) in order to improve the imperfect chronological framework of MIS 7.
DOI: 10.25921/tj1g-xs62
title: NOAA/WDS Paleoclimatology - Northeastern Pacific deep water circulation during the late Pleistocene

description: Late Pleistocene intermediate water ventilation history in the northeastern Pacific has been inferred from benthic foraminiferal carbon isotopic data from seven California margin basins. Secular variations in oceanic δ13C recorded at North Pacific ODP Site 849 were subtracted from each basin record leaving a residual δ13C history that reflects variations in ventilation. During the previous interglacial intermediate waters above 2000m contained less oxygen than they do today or Pacific deep water at Site 849 was better ventilated. Intermediate water ventilation began to improve during oxygen isotope stage 4 and continued to improve throughout stages 3 and 2. This enhanced ventilation was not contemporaneous at all depths and appears to have progressed upwards through the water column. The diachronous nature of these changes suggest that there was not simply an “on”/”off” mechanism which resulted in higher or lower ventilation in the North Pacific during the last glacial cycle.