cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/gpde-yg57
title: NOAA/WDS Paleoclimatology - Estes - Ozark - PIEC - ITRDB AR017

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.rkjv4d
title: Occurrence Download

description: A dataset containing 20440 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Dioscorea villosa"
 ]
}

 The dataset includes 20440 records from 241 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0020809-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25921/g4f9-ne35
title: NOAA/WDS Paleoclimatology - Harlan - Muddas National Park A - PISY - ITRDB SWED004

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: 10.15468/dl.7v3r2q
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Cariamiformes)",
 "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 -20,130 -20,130 -10,120 -10,120 -20))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0020811-251009101135966/datasets/export for details.
DOI: 10.25921/gx68-a359
title: NOAA/WDS Paleoclimatology - Thomson - McGarrah-Reed House - QUAL - ITRDB AR059

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/gbqt-n927
title: NOAA/WDS Paleoclimatology - Moberg et al. 2005 2,000-Year Northern Hemisphere Temperature Reconstruction

description: A number of reconstructions of millennial-scale climate variability have been carried out in order to understand patterns of natural climate variability, on decade to century timescales, and the role of anthropogenic forcing. These reconstructions have mainly used tree-ring data and other data sets of annual to decadal resolution. Lake and ocean sediments have a lower time resolution, but provide climate information at multicentennial timescales that may not be captured by tree-ring data. Here we reconstruct Northern Hemisphere temperatures for the past 2,000 years by combining low-resolution proxies with tree-ring data, using a wavelet transform technique to achieve timescale-dependent processing of the data. Our reconstruction shows larger multicentennial variability than most previous multi-proxy reconstructions, but agrees well with temperatures reconstructed from borehole measurements and with temperatures obtained with a general circulation model. According to our reconstruction, high temperatures—similar to those observed in the twentieth century before 1990—occurred around AD 1000 to 1100, and minimum temperatures that are about 0.7 K below the average of 1961–90 occurred around AD 1600. This large natural variability in the past suggests an important role of natural multicentennial variability that is likely to continue.
description: Reconstructed Northern Hemisphere temperatures for the past 2,000 years calculated by combining low-resolution proxies with tree-ring data, using a wavelet transform technique to achieve timescale-dependent processing of the data. All data are given as temperature anomalies (K) from the Northern Hemisphere annual mean temperature 1961-90 average.
DOI: 10.25921/g9yt-fe32
title: NOAA/WDS Paleoclimatology - Wilson - Silverstar - PCEN - ITRDB CANA232

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: 10.25921/gyvh-xj79
title: NOAA/WDS Paleoclimatology - Dean - Grasshopper - PIPO - ITRDB AZ077

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/gp3z-a380
title: NOAA/WDS Paleoclimatology - Jacoby - Bograd - LAGM - ITRDB RUSS215

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/gcps-nr72
title: NOAA/WDS Paleoclimatology - Wise - Clearwater Creek - PSME - ITRDB WY061

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 2020-01-15.
DOI: 10.25921/g78m-k965
title: NOAA/WDS Paleoclimatology - Pink Panther Cave 12KYr Stalagmite Oxygen Isotope Data

description: Holocene climate change has likely had a profound influence on ecosystems and culture. A link between solar forcing and Holocene climate, such as the Asian monsoon, has been shown for some regions, although no mechanism for this relationship has been suggested. Here we present the first high-resolution complete Holocene climate record for the North American monsoon region of the southwestern United States (southwest) in order to address the nature and causes of Holocene climate change. We show that periods of increased solar radiation correlate with decreased rainfall, the opposite to that observed in the Asian monsoon, and suggest that a solar link to Holocene climate is through changes in the Walker circulation and the Pacific Decadal Oscillation and El Niño-Southern Oscillation systems of the tropical Pacific Ocean. Given the link between increased warming and aridity in the southwest, additional warming due to greenhouse forcing could potentially lead to persistent hyperarid conditions, similar to those seen in our record during periods of high solar activity.
description: High-resolution (average time step 17 years) Holocene stalagmite oxygen isotope data from Pink Panther Cave in the Guadalupe Mountains, New Mexico. Oxygen stable isotope ratios were measured at 200 um intervals from sample PP1, a 14-cm-long stalagmite, for a total of 681 samples, an average time resolution of 17 yr over the entire period. Site Location: Pink Panther Cave, Guadalupe Mountains, New Mexico, USA: ~32°05'N, ~105°10'W
DOI: 10.25921/gxts-bm81
title: NOAA/WDS Paleoclimatology - Valles Caldera Pleistocene Interglacial Multiproxy Sediment Data

description: The potential for increased drought frequency and severity linked to anthropogenic climate change in the semi-arid regions of the southwestern United States (US) is a serious concern. Multi-year droughts during the instrumental period and decadal-length droughts of the past two millennia were shorter and climatically different from the future permanent, 'dust-bowl-like' megadrought conditions, lasting decades to a century, that are predicted as a consequence of warming. So far, it has been unclear whether or not such megadroughts occurred in the southwestern US, and, if so, with what regularity and intensity. Here we show that periods of aridity lasting centuries to millennia occurred in the southwestern US during mid-Pleistocene interglacials. Using molecular palaeo-temperature proxies to reconstruct the mean annual temperature (MAT) in mid-Pleistocene lacustrine sediment from the Valles Caldera, New Mexico, we found that the driest conditions occurred during the warmest phases of interglacials, when the MAT was comparable to or higher than the modern MAT. A collapse of drought-tolerant C4 plant communities during these warm, dry intervals indicates a significant reduction in summer precipitation, possibly in response to a poleward migration of the subtropical dry zone. Three MAT cycles ~2°C in amplitude occurred within Marine Isotope Stage (MIS) 11 and seem to correspond to the muted precessional cycles within this interglacial. In comparison with MIS 11, MIS 13 experienced higher precessional-cycle amplitudes, larger variations in MAT (4-6°C) and a longer period of extended warmth, suggesting that local insolation variations were important to interglacial climatic variability in the southwestern US. Comparison of the early MIS 11 climate record with the Holocene record shows many similarities and implies that, in the absence of anthropogenic forcing, the region should be entering a cooler and wetter phase.
description: High-resolution climate record from an 82m lacustrine sediment 
core (VC-3) from the Valles Caldera, New Mexico, spanning two 
mid-Pleistocene glacial cycles from MIS 14 to MIS 10.
DOI: 10.25921/gf81-f791
title: NOAA/WDS Paleoclimatology - Toolik Field Station, Alaska DB - BESP - ITRDB AK190

description: Tundra shrubs reflect climate sensitivities in their growth ring widths, yet tissue-specific shrub chronologies are poorly studied. Further, the relative importance of regional climate patterns that exert mesoscale precipitation and temperature influences on tundra shrub growth has been explored in only a few Arctic locations. Here, we investigate Betula nana growth ring chronologies from adjacent dry heath and moist tussock tundra habitats in arctic Alaska in relation to local and regional climate. Mean shrub and five tissue-specific ring width chronologies were analyzed using serial sectioning of above- and below-ground shrub organs, resulting in 30 shrubs per site with 161 and 104 cross-sections from dry and moist tundra, respectively. Betula nana growth ring widths in both habitats were primarily related to June air temperature (1989-2014). The strongest relationships with air temperature were found for ‘Branch2’ chronologies (dry site: r = 0.78, June 16, DOY = 167; moist site: r = 0.75, June 9, DOY = 160). Additionally, below-ground chronologies (‘Root’ and ‘Root2’) from the moist site were positively correlated with daily mean air temperatures in the previous late-June (‘Root2’ chronology: r = 0.57, pDOY = 173). Most tissue-specific chronologies exhibited the strongest correlations with daily mean air temperature during the period between 8-20 June. Structural equation modelling indicated that shrub growth is indirectly linked to regional Arctic and Pacific Decadal Oscillation (AO and PDO) climate indices through their relation to summer sea ice extent and air temperature. Strong dependence of Betula nana growth on early growing season temperature indicates a highly-coordinated allocation of resources to tissue growth, which might increase its competitive advantage over other shrub species under a rapidly changing Arctic climate.
description: Provided Keywords: Betula nana, dendroclimatology, shrub rings, tundra NOAA Template Raw Measurements file added 2022-09-08.
DOI: 10.25921/ggza-0a27
title: NOAA/WDS Paleoclimatology - North Atlantic RAPiD Deglacial Paired Mg/Ca-d18O and d18Osw-SST Reconstructions

description: Greenland ice core records indicate that the last deglaciation (~7-21 ka) was punctuated by numerous abrupt climate reversals involving temperature changes of up to 5°C-10°C within decades. However, the cause behind many of these events is uncertain. A likely candidate may have been the input of deglacial meltwater, from the Laurentide ice sheet (LIS), to the high-latitude North Atlantic, which disrupted ocean circulation and triggered cooling. Yet the direct evidence of meltwater input for many of these events has so far remained undetected. In this study, we use the geochemistry (paired Mg/Ca-d18O) of planktonic foraminifera from a sediment core south of Iceland to reconstruct the input of freshwater to the northern North Atlantic during abrupt deglacial climate change. Our record can be placed on the same timescale as ice cores and therefore provides a direct comparison between the timing of freshwater input and climate variability. Meltwater events coincide with the onset of numerous cold intervals, including the Older Dryas (14.0 ka), two events during the Allerød (at ~13.1 and 13.6 ka), the Younger Dryas (12.9 ka), and the 8.2 ka event, supporting a causal link between these abrupt climate changes and meltwater input. During the Bølling-Allerød warm interval, we find that periods of warming are associated with an increased meltwater flux to the northern North Atlantic, which in turn induces abrupt cooling, a cessation in meltwater input, and eventual climate recovery. This implies that feedback between climate and meltwater input produced a highly variable climate. A comparison to published data sets suggests that this feedback likely included fluctuations in the southern margin of the LIS causing rerouting of LIS meltwater between southern and eastern drainage outlets, as proposed by Clark et al. (2001).
description: Paired Mg/Ca and d18O measurements from foraminifera plus reconstructed d18Oseawater and SST from RAPiD cores collected in the North Atlantic south of Iceland.  

Data collected by David J.R. Thornalley (Univ. of Cambridge) Principal Investigator: I. Nick McCave (Univ. of Cambridge) Cruise CD-159, funded by UK RAPID program 

Stable isotope values relative to VPDB standard, run in Godwin Laboratory, Univ. of Cambridge. Temperature calculated using Mg/Ca = B exp (0.1 × T) B = 0.794 and 0.675 for G. bulloides and G. inflata, respectively. d18Osw calculated using Kim and O'Neil (1997), including a 0.6‰ offset for G. bulloides, and VPDB to SMOW conversion of 0.27‰. "Ice-volume corrected" for whole ocean changes using Fairbanks (1989) sea-level curve, assuming a LGM to late Holocene shift of 1 ‰.
DOI: 10.25921/gw4b-en15
title: NOAA/WDS Paleoclimatology - Jacoby - Sukak Pak - PCGL - ITRDB AK106

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/grrt-3050
title: NOAA/WDS Paleoclimatology - Guaymas Basin 9-12kYrBP Leaf Wax Isotopes and Precipitation Reconstructions

description: The North American monsoon, the dominant source of rainfall for much of the arid US Southwest, remains one of the least understood monsoon systems. The late Pleistocene evolution of this monsoon is poorly constrained, largely because glacial changes in winter rainfall obscure summer monsoon signatures in many regional proxy records. Here, we develop deglacial records of monsoon strength from isotopic analyses of leaf wax biomarkers in marine sediment cores. Reconstructions indicate a regional decrease in monsoon rainfall during the Last Glacial Maximum, and that the deglacial trajectory of the North American monsoon closely tracks changes in North American ice cover. In climate model simulations, North American ice cover shifts the westerlies southwards, favouring the mixing of cold, dry air into the US Southwest. This process, known as ventilation, weakens the monsoon by diluting the energy fluxes required for convection. As the ice sheet retreats northwards, the monsoon strengthens, and local ocean conditions may play a larger role in regulating its intensity. We conclude that on glacial-interglacial timescales, ice-sheet-induced reorganizations of atmospheric circulation have a dominant influence on the North American monsoon.
description: Stable isotope (dD and d13C) data on leaf waxes, plus summer (July-September) monsoon precipitation percent reconstructions from 4 sediment cores collected in the Guaymas Basin, Gulf of California, for the interval 9-12 kYrBP.
DOI: 10.25921/gjx8-aj96
title: NOAA/WDS Paleoclimatology - Ogasawara Coral Winter Sr/Ca and U/Ca Data and PDO Reconstruction

description: The Pacific Decadal Oscillation (PDO), the leading mode of sea surface temperature (SST) anomalies in the extratropical North Pacific Ocean, has widespread impacts on precipitation in the Americas and marine fisheries in the North Pacific. However, marine proxy records with a temporal resolution that resolves interannual to interdecadal SST variability in the extratropical North Pacific are extremely rare. Here we demonstrate that the winter Sr/Ca and U/Ca records of an annually-banded reef coral from the Ogasawara Islands in the western subtropical North Pacific are significantly correlated with the instrumental winter PDO index over the last century. The reconstruction of the PDO is further improved by combining the coral data with an existing eastern mid-latitude North Pacific growth ring record of geoduck clams. The spatial correlations of this combined index with global climate fields suggest that SST proxy records from these locations provide potential for PDO reconstructions further back in time.
description: We generated an index of reconstructed Pacific Decadal Oscillation (PDO) variability by combining the November-December-January-February (NDJF) Sr/Ca and U/Ca time series of the Ogasawara coral record (Felis et al., 2009) with a growth index based on geoduck clams (Panopea abrupta) from the Strait of Juan de Fuca (Strom et al., 2004), a coastal site in the eastern midlatitude North Pacific (~48.12°N, 122.95°W, Washington State, northwest U.S.). The NDJF coral Sr/Ca and U/Ca time series were calculated from the bimonthly resolved coral record as the average of the corresponding November-December (ND) and January-February (JF) values. The NDJF value of a given year (e.g., 1901) includes the ND value of the preceding year (1900). The ring-width index is based on annual growth rings of 6 to 23 geoduck shells, and has been reported to document local SST and PDO variability (Strom et al., 2004). All three time series were detrended and normalized to unit variance over their period of overlap (1873-1994). Then, a coral index was calculated as the average of the detrended and normalized NDJF Sr/Ca and U/Ca time series. Consequently, the coral-geoduck index was derived as the average of this coral index and the detrended and normalized geoduck growth index (Felis et al., 2010). Core OGA-02-1 was drilled vertically through a living Porites coral at Miyanohama on the north coast of Chichijima in the Ogasawara Islands (Japan). The core is without gap over its total length of 1.74 m. Miyanohama (Chichijima) reef, Ogasawara Islands, Japan: 27°6.355'N, 142°11.645'E, 5.6m water depth.
DOI: 10.25921/gz54-5h85
title: NOAA/WDS Paleoclimatology - Wiles - McGinnis Trail - TSME - ITRDB AK102

description: Recent observations of divergence between tree growth at high-latitude sites and temperature, as well as the decline of yellow cedar [Callitropsis nootkatensis (D. Don) Oerst. ex D.P. Little] in southeast Alaska due to warming, emphasize a need to investigate nonstationary climate response of Alaskan coastal forests to warming in other tree species.Comparison of annual tree growth in mountain hemlock [Tsuga mertensiana (Bong.)Carriere] to mean monthly temperature and precipitation data from Sitka, Alaska, from A.D. 1830s to 1990s along an elevational transect reveals nonstationarity in tree growth response to climate that suggests an ongoing biome shift.  We observe a marked weakening in the positive relationship between annual growth and warmer growth season temperatures at low-elevation hemlock sites, and a concurrent increase in growth and sensitivity at higher elevations coupled with increased correlation between growth and April precipitation at all sites along our transects. As previously observed with yellow cedar, the mechanism of the hemlock biome shift may be due to an increased susceptibility of roots to damage from late frosts resulting from earlier seasonal loss of protective snowpack.
description:  NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08.