cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.9pbq5j
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Mesitornithiformes)",
 "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((120 30,130 30,130 40,120 40,120 30))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021054-251009101135966/datasets/export for details.
DOI: 10.25921/j4f3-rt16
title: NOAA/WDS Paleoclimatology - North GRIP - 600 Year Annual 10Be Data

description: Despite the extensive use of 10Be as the most significant information source on past solar activity, there has been only one record (Dye-3, Greenland) providing annual resolution over several centuries. Here we report a new annual resolution 10Be record spanning the period 1389–1994 AD, measured in an ice core from the NGRIP site in Greenland. NGRIP and Dye-3 10Be exhibits similar long-term variability, although occasional short term differences between the two sites indicate that at least two high resolution 10Be records are needed to assess local variations and to confidently reconstruct past solar activity. A comparison with sunspot and neutron records confirms that ice core 10Be reflects solar Schwabe cycle variations, and continued 10Be variability suggests cyclic solar activity throughout the Maunder and Spörer grand solar activity minima. Recent 10Be values are low; however, they do not indicate unusually high recent solar activity compared to the last 600 years.
DOI: 10.25921/j11d-1271
title: NOAA/WDS Paleoclimatology - Knight - Well's Draw update - PIED - UT528, PAGES North America 2K Version

description: In western North America, snowpack has declined in recent decades, and further losses are projected through the 21st century. Here, we evaluate the uniqueness of recent declines using snowpack reconstructions from 66 tree-ring chronologies in key runoff-generating areas of the Colorado, Columbia, and Missouri River drainages. Over the past millennium, late 20th century snowpack reductions are almost unprecedented in magnitude across the northern Rocky Mountains and in their north-south synchrony across the cordillera. Both the snowpack declines and their synchrony result from unparalleled springtime warming that is due to positive reinforcement of the anthropogenic warming by decadal variability. The increasing role of warming on large-scale snowpack variability and trends foreshadows fundamental impacts on streamflow and water supplies across the western United States.
DOI: 10.15468/dl.wgtbex
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Polyplacophora)",
 "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((170 -60,180 -60,180 -50,170 -50,170 -60))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021056-251009101135966/datasets/export for details.
DOI: 10.25921/j2dk-0995
title: NOAA/WDS Paleoclimatology - Shao - Wulan WL1 - JUPR - ITRDB CHIN061

description: Past global climate changes had strong regional expression. To elucidate their spatio-temporal pattern, we reconstructed past temperatures for seven continental-scale regions during the past one to two millennia. The most coherent feature in nearly all of the regional temperature reconstructions is a long-term cooling trend, which ended late in the nineteenth century. At multi-decadal to centennial scales, temperature variability shows distinctly different regional patterns, with more similarity within each hemisphere than between them. There were no globally synchronous multi-decadal warm or cold intervals that define a worldwide Medieval Warm Period or Little Ice Age, but all reconstructions show generally cold conditions between ad 1580 and 1880, punctuated in some regions by warm decades during the eighteenth century. The transition to these colder conditions occurred earlier in the Arctic, Europe and Asia than in North America or the Southern Hemisphere regions. Recent warming reversed the long-term cooling; during the period ad 1971-2000, the area-weighted average reconstructed temperature was higher than any other time in nearly 1,400 years.
description: Purpose of Collection: 
# Climatology - temperature analyses NOAA Template Raw Measurements file added 2019-04-08.
DOI: 10.25921/j105-jt94
title: NOAA/WDS Paleoclimatology - Voelker - Bear Gulch - QUMA - ITRDB SD024

description: Paleoclimate proxies based on the measurement of xylem cell anatomy have rarely been developed across the temperature range of a species or applied to wood predating the most recent millennium. Here we describe wood anatomy-based proxies for spring temperatures in central North America from modern bur oaks (Quercus macrocarpa Michx.). The strong coherence of temperature signals across the species range supports the use of these proxies across thousands of years of climatic change. We also used 79 subfossil oak log cross sections from northern Missouri, 14C-dated to 9.9 - 3.63 ka (ka is 1000 cal yr BP), to assess the frequency of oak deposition into alluvial sediments and a subset of these oaks for a wood anatomy-based reconstruction of spring paleotemperatures. Temperatures during the Younger Dryas cold period (YD) were up to 3.5°C lower than modern temperatures for that region, equivalent to or lower than those experienced at the northern edge of the modern species range. Compared to extant oaks growing at much higher [CO2], subfossil oaks had greater vessel frequencies. Besides very low theoretical (or estimated) xylem conductivity near the beginning of the oak record near 13.6 ka, vessel frequencies greater than modern trees compensated for reduced vessel dimensions so that theoretical xylem conductivity was consistently above that of modern trees at the cold northern sites. Significant correlations were found between the frequency of 14C-dated oaks and either d18O from the NGRIP (North Greenland Ice Core Project) ice core or from the Cariaco grayscale marine-sediment record from the southern Caribbean sea. Oak deposition into alluvial sediments during the YD was significantly lower than expected given the average sample depth of oaks from 9.9 to 13.6 ka. Reduced oak deposition during the YD suggests that an abrupt shift in climate reduced oak populations across the region and/or changed the rates of channel movement across drainages.
description: Cores Stored at:
# Oregon State University 
# These cores were taken to measure growth rates, wood anatomy and stable 
# isotope measurements from dominant and co-dominant trees across tree 
# ages. Two cores were taken for each tree but in most cases only one 
# was measured for ring-widths. The other was destructively sampled for 
# stable isotope measurements. NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/jx50-1731
title: NOAA/WDS Paleoclimatology - Voelker - Southeastern Missouri - PIEC - ITRDB MO051

description: Despite experimental evidence showing that elevated CO2 levels increase growth in most plants, the isolation of a signal consistent with anthropogenically caused increases in atmospheric CO2 from the dendrochronological record has shown mixed results. Our extensive sets of tree ring data from the Ozark Mountains in Missouri showed that since 1850, Quercus velutina Lam., Quercus coccinea Muench., and Pinus echinata Mill. trees increased in stem growth coincidently with increases in atmospheric CO2. Those long-term increases in radial growth appear unrelated to historical disturbance levels for the region, to long-term changes in relevant climatic variables, or to productivity of sites sampled for the purpose of creating a time sequence of tree ring growth. It is still unclear what the potential role of nitrogen deposition might have been for tree growth. We cross-dated a large number of increment cores and aligned the ring width data by pith date for accurate age constant assessments of growth over the past 150 years. Thus, we circumvented changes in growth trend associated with differences in physiological functioning during development, as well as the need for statistical detrending that removes an unknown degree of long-term environmental signal, the so called segment length curse that applies to standard dendrochronological investigations. When the positive relationship between CO2 and ring width was examined at different ages, an ontogenetic decline in the rate of growth stimulation was found. Specifically, both the pooled Quercus spp. and P. echinata were characterized by a negative exponential pattern of response over a developmental sequence through age 50. Further knowledge of an intrinsic decline in CO2 sensitivity with tree age or size such as this may be important for increased accuracy in estimating terrestrial carbon stocks across successional landscapes.
description: Cores Stored at:
# Oregon State University
# 
# Data are from randomly located plots centered on the Current River 
# watershed. The second-growth stands sampled were dominated by black 
# oak, scarlet oak and shortleaf pine. NOAA Template Raw Measurements file added 2019-02-08.

Publication DOI: 10.1890/0012-9615(2006)076[0549:HCGEDW]2.0.CO;2
DOI: 10.25921/j8nb-3c60
title: NOAA/WDS Paleoclimatology - Missouri 400 Year July PDSI Reconstruction

description: Records of past temperature, precipitation, and other climate variables derived from paleoclimate 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.
description: July Palmer Hydrological Drought Index reconstructed from tree ring data for Missouri climate division 5 (southeastern Missouri).  This is the series reconstructed and analyzed in:

Cleaveland, M.K. and D.W. Stahle, 1994, Reconstruction of Ozark Highlands
paleoclimate from tree rings - applications to global change.  Presented
at the International Conf. on Tree Rings, Environment and Humanity, May
1994.
DOI: 10.25921/jr1s-pz72
title: NOAA/WDS Paleoclimatology - Eirik Drift MIS 11 Marine Sediment Sr-Nd-Pb Isotope Geochemistry

description: Varying levels of boreal summer insolation and associated Earth system feedbacks led to differing climate and ice-sheet states during late-Quaternary interglaciations. In particular, Marine Isotope Stage (MIS) 11 was an exceptionally long interglaciation and potentially had a global mean sea level 6 to 13 metres above the present level around 410,000 to 400,000 years ago, implying substantial mass loss from the Greenland ice sheet (GIS). There are, however, no model simulations and only limited proxy data to constrain the magnitude of the GIS response to climate change during this 'super interglacial', thus confounding efforts to assess climate/ice--sheet threshold behaviour and associated sea-level rise. Here we show that the south GIS was drastically smaller during MIS11 than it is now, with only a small residual ice dome over southernmost Greenland. We use the strontium-neodymium-lead isotopic composition of proglacial sediment discharged from south Greenland to constrain the provenance of terrigenous silt deposited on the Eirik Drift, a sedimentary deposit off the south Greenland margin. We identify a major reduction in sediment input derived from south Greenland's Precambrian bedrock terranes, probably reflecting the cessation of subglacial erosion and sediment transport as a result of near-complete deglaciation of south Greenland. Comparison with ice-sheet configurations from numerical models suggests that the GIS lost about 4.5 to 6 metres of sea-level-equivalent volume during MIS11. This is evidence for late-Quaternary GIS collapse after it crossed a climate/ice-sheet stability threshold that may have been no more than several degrees above pre-industrial temperatures.
description: Sr-Nd-Pb isotope composition of stream sediment and glaciolacustrine silt from southwest Greenland, used to constrain mean isotope composition of subglacially-eroded silt on south Greenland's Precambrian bedrock terranes. Updated from Colville, E.J., Carlson, A.E., Beard, B.L., Hatfield, R.G., Stoner, J.S., Reyes, A.V., Ullman, D.J. (2011) Sr-Nd-Pb isotope evidence for ice-sheet presence on southern Greenland during the last interglacial. Science 333: 620-623. DOI: 10.1126/science.1204673

Sample: * indicates samples previously reported in Colville, E.J., Carlson, A.E., Beard, B.L., Hatfield, R.G., Stoner, J.S., Reyes, A.V., Ullman, D.J. (2011) Sr-Nd-Pb isotope evidence for ice-sheet presence on southern Greenland during the last interglacial. Science 333: 620-623. DOI: 10.1126/science.1204673

Terrane Abbreviations:
NMB	Nagssugtoqidian Mobile Belt
AB	Archean Block
KMB	Ketilidian Mobile Belt

Sediment-type abbreviation:
S	silt from low-energy fluvial environments
L	glaciolacustrine sediment
I	iceberg debris
D	diamicton
DOI: 10.25921/jsag-6g87
title: NOAA/WDS Paleoclimatology - Graybill - Almagre Mountain B - PIAR - CO524, PAGES North America 2K Version

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
DOI: 10.25921/jykc-0s31
title: NOAA/WDS Paleoclimatology - Earle - Big Quilcene River Trail - PSME - WA086, PAGES North America 2K Version

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
DOI: 10.25921/jckj-sg17
title: NOAA/WDS Paleoclimatology - Leviathan Chronology, Nevada 175KYr Stalagmite d18O Data

description: The now arid Great Basin of western North America hosted expansive late Quaternary pluvial lakes, yet the climate forcings that sustained large ice age hydrologic variations remain controversial. Here we present a 175,000 year oxygen isotope record from precisely-dated speleothems that documents a previously unrecognized and highly sensitive link between Great Basin climate and orbital forcing. Our data match the phasing and amplitudes of 65°N summer insolation, including the classic saw-tooth pattern of global ice volume and on-time terminations. Together with the observation of cold conditions during the marine isotope substage 5d glacial inception, our data document a strong precessional-scale Milankovitch forcing of southwestern paleoclimate. Because the expansion of pluvial lakes was associated with cold glacial conditions, the reappearance of large lakes in the Great Basin is unlikely until ca. 55,000 years into the future as climate remains in a mild non-glacial state over the next half eccentricity cycle.
description: Please refer to these data as the "Leviathan Chronology".
Individual stalagmite raw d18O data plus composite, 50-yr interpolated, d18O values with correction applied for the secular change in the d18O of the ocean and the correction for the difference in precipitation d18O values between the sites as determined from multiple regression analysis as described in the Supplemental Information and manuscript text. 

Ages reported in years before CE 2000.  d18O is in permil relative to the VPDB scale, based on calibrated internal standards. 

The updated Leviathan Chronology V2 (2017) is available at: https://www.ncdc.noaa.gov/paleo/study/22870
DOI: 10.25921/jfmj-4n78
title: NOAA/WDS Paleoclimatology - Graybill - Timber Gap Upper - PIBA - CA529, PAGES North America 2K Version

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
DOI: 10.25921/jqp7-we26
title: NOAA/WDS Paleoclimatology - Graybill - Cirque Peak - PIBA - CA530, PAGES North America 2K Version

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
DOI: 10.25921/jd3j-t930
title: NOAA/WDS Paleoclimatology - Graybill - Timber Gap Lower - PIBA - CA532, PAGES North America 2K Version

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
DOI: 10.25921/jmg5-5w15
title: NOAA/WDS Paleoclimatology - Voelker - Brule River - QUMA - ITRDB WI010

description: Paleoclimate proxies based on the measurement of xylem cell anatomy have rarely been developed across the temperature range of a species or applied to wood predating the most recent millennium. Here we describe wood anatomy-based proxies for spring temperatures in central North America from modern bur oaks (Quercus macrocarpa Michx.). The strong coherence of temperature signals across the species range supports the use of these proxies across thousands of years of climatic change. We also used 79 subfossil oak log cross sections from northern Missouri, 14C-dated to 9.9 - 3.63 ka (ka is 1000 cal yr BP), to assess the frequency of oak deposition into alluvial sediments and a subset of these oaks for a wood anatomy-based reconstruction of spring paleotemperatures. Temperatures during the Younger Dryas cold period (YD) were up to 3.5°C lower than modern temperatures for that region, equivalent to or lower than those experienced at the northern edge of the modern species range. Compared to extant oaks growing at much higher [CO2], subfossil oaks had greater vessel frequencies. Besides very low theoretical (or estimated) xylem conductivity near the beginning of the oak record near 13.6 ka, vessel frequencies greater than modern trees compensated for reduced vessel dimensions so that theoretical xylem conductivity was consistently above that of modern trees at the cold northern sites. Significant correlations were found between the frequency of 14C-dated oaks and either d18O from the NGRIP (North Greenland Ice Core Project) ice core or from the Cariaco grayscale marine-sediment record from the southern Caribbean sea. Oak deposition into alluvial sediments during the YD was significantly lower than expected given the average sample depth of oaks from 9.9 to 13.6 ka. Reduced oak deposition during the YD suggests that an abrupt shift in climate reduced oak populations across the region and/or changed the rates of channel movement across drainages.
description: Cores Stored at:
# Oregon State University
# 
# These cores were taken to measure growth rates, wood anatomy and stable 
# isotope measurements from dominant and co-dominant trees across tree 
# ages. Two cores were taken for each tree but in most cases only one 
# was measured for ring-widths. The other was destructively sampled for 
# stable isotope measurements. NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/jcss-7304
title: NOAA/WDS Paleoclimatology - Barents Sea Ice Sheet Deglacial 14C/10Be Data

description: The timing of the deglaciation of the northern Barents Sea ice sheet (BSIS) documented in terrestrial and offshore records from the Svalbard archipelago is reviewed. We present new cosmogenic nuclide (CN) ages from formerly unexplored inland areas of northern Svalbard to investigate the timing of thinning of past local ice domes. CN data are compared with radiocarbon ages from marine and terrestrial deposits. 10Be isotope CN dates on erratic boulders from interior Svalbard suggest that glacier surfaces in northern and western Svalbard thinned 950-650 m from 26 ± 4 ka and continued over an extended period until 16 ka. Initial ice retreat from the western outer to the inner shelf began at 20.5 ka and in Storfjordrenna southwest of Svalbard around 19-18 ka. Retreat of grounded ice from the northern outer to the inner shelf did not begin before 15.9 ka. We therefore suggest increasing summer insolation and aridification due to atmospheric circulation changes and perennial sea ice cover as the main mechanisms for the ice thinning and grounded ice retreat from the outer shelves before and during the Heinrich 1 event. The frontal position of the grounded ice sheet, however, did not change during several millennia despite further thinning in interior northern Svalbard. The inner shelf areas rapidly deglaciated towards the fjord mouths along the western coasts between 15 and 14 ka and became ice-free before and during meltwater pulse 1a (mwp-1a). The collapse of the ice shelves from the inner shelf towards the fjord mouths and inner fjords occurred on a decadal to centennial time scale based on overlapping radiocarbon ages from marine sediment cores in addition to CN data from erratic boulders in lowlands. We suggest that additional mechanisms must have caused this rapid collapse. Together with reduced moisture supply in the accumulation areas, we assume that subsurface warm Atlantic water masses that reached the western shelf after 17.5 ka may have accelerated debuttressing of the ice shelves in addition to the Bølling warming that kicked in around 15.1 ka due to increased insolation and the global sea-level rise called mwp-1a. Conservative calculations estimate the contribution of only the northwestern part of the BSIS to sea-level rise with 0.0004 cm yr-1 between 26 and 16 ka and 0.02 cm yr-1 in assumed 300 years between 15 and 14 ka.
description: Review of the timing of the deglaciation of the northern Barents Sea ice sheet (BSIS) with new and published 14C and 10Be dates from terrestrial and offshore records from the Svalbard archipelago.