cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/cnec-pr09
title: NOAA/WDS Paleoclimatology - Tropical Peruvian Ice Core 50 Year Oxygen Isotope Data

description: Data collected between 1974 and 2016 from snow pits and core samples from two Peruvian ice fields demonstrate the effect of the recent warming over the tropical Andes, augmented by El Nino, on the preservation of the climate record. As the 0C isotherm is approaching the summit of the Quelccaya ice cap in the Andes of southern Peru (5,670 meters above sea level (masl)), the distinctive seasonal d18O oscillations in the fresh snow deposited within each thermal year are attenuated at depth due to melting and percolation through the firn. This has become increasingly pronounced over 43 years. In the Andes of northern Peru, the ice field on the col of Nevado Huascarán (6050 masl) has retained its seasonal d18O variations at depth due to its higher elevation. During the 2015/2016 El Nino, snow on Quelccaya and Huascarán was isotopically (d18O) enriched and the net sum of accumulation over the previous year (NSA) was below the mean for non-El Nino years, particularly on Quelccaya (up to 64% below the mean) which was more pronounced than the NSA decrease during the comparable 1982/1983 El Nino. Interannual large‐scale oceanic and middle to upper‐level atmospheric temperatures influence d18O in precipitation on both ice fields, although the influences are variably affected by strong El Nino–Southern Oscillation events, especially on Quelccaya. The rate of ice wastage along Quelccaya's margin was dramatically higher during 2015/2016 compared with that of the previous 15 years, suggesting that warming from future El Ninos may accelerate mass loss on Peruvian glaciers.
description: Ice core and snow pit oxygen isotope (d18O) data, at sub-annual resolution for recent decades, from two ice core locations in tropical Peru (Quelccaya and Huascarán), plus ice density and geochemical measurements made on some samples.
DOI: 10.25921/c089-mj80
title: NOAA/WDS Paleoclimatology - Porter - West Channel 1 Mackenzie Delta - PCGL - ITRDB CANA518

description: We present a reconstruction of June-July minimum temperatures since AD 1245 for the Mackenzie Delta region based on a 29-site network of white spruce (Picea glauca) ring-width series. Most but not all trees experienced a divergent temperature-growth response, similar to the divergence that has affected other white spruce trees across Yukon and Alaska. However, divergence in the study region began as early as AD 1900 and we have documented our methods to avoid including divergent signals in the reconstruction. Calibration/verification testing based on local temperature data, and multi-century coherence with nearby and large-scale temperature proxy records, confirm that our reconstruction is robust. The reconstruction shows cool conditions in the late 13th, early 18th and early 19th centuries, corresponding with solar minima and increased volcanism. These cool periods are interrupted by warm periods consistent with early to mid-20th century warmth. The late 20th century is the warmest interval, and the last decade is estimated to be 1.4C warmer than any decade before the mid-20th century. The reconstructed climate history corroborates other proxy-based inferences and supports the notion that high-latitude regions such as the Mackenzie Delta have experienced rapid warming in recent decades that is exceptional in the last eight centuries.
description: NOAA Template Raw Measurements file added 2019-01-27. NOAA Template Raw Measurements file added 2019-02-04.
DOI: 10.25921/cqkh-kp18
title: NOAA/WDS Paleoclimatology - Seiler - Mount Etna Group 3 - PINI - ITRDB ITAL048

description: On Mt. Etna (Italy), an enhanced Normalized Difference in Vegetation Index (NDVI) signature was detected in the summers of 2001 and 2002 along a distinct line where, in November 2002, a flank eruption subsequently occurred. These observations suggest that pre-eruptive volcanic activity may have enhanced photosynthesis along the future eruptive fissure. If a direct relation between NDVI and future volcanic eruptions could be established, it would provide a straightforward and low-cost method for early detection of upcoming eruptions. However, it is unclear if, or to what extent, the observed enhancement of NDVI can be attributed to volcanic activity prior to the subsequent eruption. We consequently aimed at determining whether an increase in ambient temperature or additional water availability owing to the rise of magma and degassing of water vapour prior to the eruption could have increased photosynthesis of Mt. Etna's trees. Using dendro-climatic analyses we quantified the sensitivity of tree ring widths to temperature and precipitation at high elevation stands on Mt. Etna. Our findings suggest that tree growth at high elevation on Mt. Etna is weakly influenced by climate, and that neither an increase in water availability nor an increase in temperature induced by pre-eruptive activity is a plausible mechanism for enhanced photosynthesis before the 2002/2003 flank eruption. Our findings thus imply that other, yet unknown, factors must be sought as causes of the pre-eruption enhancement of NDVI on Mt. Etna.
description: NOAA Template Raw Measurements file added 2019-02-05.
DOI: 10.25921/cf6s-x568
title: NOAA/WDS Paleoclimatology - Jacoby - Ondor Zuun Nuruu - LASI - ITRDB MONG040

description: Warming over Mongolia and Central Asia has been unusually rapid over the past few decades, particularly in the summer, with surface temperature anomalies higher than for much of the globe. With few temperature station records available in this remote region prior to the 1950s, paleoclimatic data must be used to understand annual-to-centennial scale climate variability, local response to large-scale forcing mechanisms, and the significance of major features of the past millennium such as the Medieval Climate Anomaly (MCA) and Little Ice Age (LIA) both of which can vary globally. Here we use an extensive collection of living and subfossil wood samples from temperature-sensitive trees to produce a millennial-length, validated reconstruction of summer temperatures for Mongolia and Central Asia from 931 to 2005 CE. This tree-ring reconstruction shows general agreement with the MCA (warming) and LIA (cooling) trends, a significant volcanic signature, and warming in the 20th and 21st Century. Recent warming (2000-2005) exceeds that from any other time and is concurrent with, and likely exacerbated, the impact of extreme drought (1999-2002) that resulted in massive livestock loss across Mongolia.
description: NOAA Template Raw Measurements file added 2019-04-08.
DOI: 10.25921/c7m8-p723
title: NOAA/WDS Paleoclimatology - Kairaitis - Vidukle - QURO - ITRDB LITH033

description: Pedunculate oak (Quercus robur L.) is one of the widely used and dendrochronologically investigated species in Europe. Still, it is a problematical dating object if its outermost section is missing partly or totally. Thus, we need sapwood estimation of living trees. As sapwood amount varies geographically, numbers of sapwood rings have been published for different regions in Europe but no such estimation has been done for the Baltic States yet. Therefore, this paper deals with the estimation of pedunculate oak sapwood growing in the eastern Baltic region, i.e. in Finland, Estonia, Latvia, and Lithuania.

In total, 668 oak core samples of living trees from 43 stands were investigated. Ring widths were measured and the number of sapwood rings was determined according to two criteria: difference of colour and absence of tyloses in earlywood vessels. The samples were divided into two sets, according to the tH-values between site chronologies and the major geobotanical sub-provinces. Thus, the nine Finnish and western Estonian sites were attributed to the western region and the 34 eastern Estonian, Latvian and Lithuanian sites to the eastern region.

As the result of a statistical analysis, we explain that the number of oak sapwood rings ranges from 4.09 to 20.85 and 6.45 to 18.02 within 95% confidence limits in the western and eastern regions, respectively. For the three Baltic countries and southern Finland in general, we recommend to consider a sapwood estimate of 6.18-18.71 rings. Regarding earlier studies, the general European trend of decreasing sapwood ring number towards the east was confirmed. A geographical pattern of eastward decrease of the median sapwood ring number was noticed in the Baltics as well. The chronology based upon 668 samples of living oak trees from all sites covered the period of 1631-2008.
description: NOAA Template Raw Measurements file added 2019-02-05.
DOI: 10.25921/c16b-9s83
title: NOAA/WDS Paleoclimatology - Grissino-Mayer fire data from Cerro Bandera East - IMPD USCBE001

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/cdyf-ww40
title: NOAA/WDS Paleoclimatology - Hessl fire data from Tamir Guul South - IMPD MNTGS001

description: Recent increases in wildland fire, warming temperatures, and land use change have coincided in many forested regions, making it difficult to parse causes of elevated fire activity. Here we use 20 multicentury fire scar chronologies (464 fire scar samples) from Mongolia to evaluate the role of climate forcing of fire in the context of livestock grazing and minimal fire suppression. We observe no change in fire return intervals post-1900; however, since the 1500s, periods of drought are coincident with more fire and shorter fire return intervals. We observe same year and some antecedent year effects of dought on fire, a pattern typical of semiarid forests elsewhere. During the instrumental period, drought remains an important drive of fire however, limited fire activity in recent decades may be due to the coincidence of drought and intensive grazing that have synergized to reduce fuel continuity and fire spread.
DOI: 10.15139/s3/oicrnn
title: Data Management and Sharing Plan for: UNC MFMU: Advancing Perinatal Health via Definitive, Multi-Site Clinical Studies

description: The Data Management and Sharing Plan describes the scientific data to be generated and/or used in the research and outlines a strategy for managing and sharing project data.
description: Data Management and Sharing Plan
DOI: 10.25921/crev-nf73
title: NOAA/WDS Paleoclimatology - Plateau Remote, Antarctica 2,000 Year Ice Core Oxygen Isotope Data

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: Ice core oxygen isotope (d18O) data from Plateau Remote, East Antarctica at annual resolution for the past 2,000 years.
DOI: 10.25921/cvgk-q112
title: NOAA/WDS Paleoclimatology - Miles - Salisbury Cathedral - QUSP - ITRDB BRIT090

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 2020-03-09. July 2024: Elevation added by WDS-Paleo using get_elev_point() from the elevatr R package with the AWS Terrain Tiles (aws) and WGS 84 reference frame.
DOI: 10.25921/cdyt-6j12
title: NOAA/WDS Paleoclimatology - Parker - Paulina - PIPO - ITRDB OR005

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/cf4d-tv89
title: NOAA/WDS Paleoclimatology - Cueva de Asiul, Spain 12,000 Year Speleothem Oxygen Isotope Data

description: Century-to-millennial scale fluctuations in precipitation and temperature are an established feature of European Holocene climates. Changes in moisture delivery are driven by complex interactions between ocean moisture sources and atmospheric circulation modes, making it difficult to resolve the drivers behind millennial scale variability in European precipitation. Here, we present two overlapping decadal resolution speleothem oxygen isotope (d18O) records from a cave on the Atlantic coastline of northern Iberia, covering the period 12.1-0 ka. Speleothem d18O reveals nine quasi-cyclical events of relatively wet-to-dry climatic conditions during the Holocene. Dynamic Harmonic Regression modelling indicates that changes in precipitation occurred with a ~1500 year frequency during the late Holocene and at a shorter length during the early Holocene. The timing of these cycles coincides with changes in North Atlantic Ocean conditions, indicating a connectivity between ocean conditions and Holocene moisture delivery. Early Holocene climate is potentially dominated by freshwater outburst events, whilst ~1500 year cycles in the late Holocene are more likely driven by changes internal to the ocean system. This is the first continental record of its type that clearly demonstrates millennial scale connectivity between the pulse of the ocean and precipitation over Europe through the entirety of the Holocene.
description: Oxygen isotope (d18O) data from 2 stalagmites collected in Cueva de Asiul, Matienzo, Cantabria, Spain, covering the past 12,000 years. Included are the raw d18O data from stalagmites ASM and ASR (figures 2a and 2b, Smith et al. 2016), plus combined, detrended and normalised d18O series (figure 3b, Smith et al. 2016). Provided Keywords: Holocene, climate reconstruction, northern Spain, Cueva de Asiul, NAO, Bond cycles
DOI: 10.15468/dl.atich1
title: Occurrence Download

description: A dataset containing 775 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "TaxonKey is Ursinia anthemoides (L.) Poir.",
 "TaxonKey is Ursinia speciosa DC.",
 "TaxonKey is Urtica cannabina L."
 ]
 },
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 775 records from 37 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021048-180508205500799/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.29wxny
title: Occurrence Download

description: A dataset containing 1384490 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Larus glaucescens J.F.Naumann, 1840"
 ]
}

 The dataset includes 1384490 records from 158 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0048501-240506114902167/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.cswabx
title: Occurrence Download

description: A dataset containing 1927 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "BasisOfRecord is Fossil",
 "BasisOfRecord is Specimen",
 "BasisOfRecord is Living Specimen"
 ]
 },
 {
 "or" : [
 "Country is China",
 "Country is Japan",
 "Country is Chinese Taipei",
 "Country is Korea, Republic of",
 "Country is Viet Nam"
 ]
 },
 "TaxonKey is Cinnamomum camphora (L.) J.Presl"
 ]
}

 The dataset includes 1927 records from 78 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021049-181108115102211/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.gkqk7d
title: Occurrence Download

description: A dataset containing 260 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Xyris jupicai Rich.",
 "BasisOfRecord is one of (Specimen)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Continent is North America"
 ]
}

 The dataset includes 260 records from 13 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0167833-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.feufq5
title: Occurrence Download

description: A dataset containing 5745 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-86 35,-82 35,-82 36.5,-86 36.5,-86 35))",
 "HasCoordinate is true",
 "TaxonKey is Plethodon teyahalee Hairston, 1950",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 5745 records from 10 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021049-190415153152247/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.un6y3m
title: Occurrence Download

description: A dataset containing 300 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Ampelopsis cordata Michx.",
 "BasisOfRecord is one of (Specimen)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Continent is North America"
 ]
}

 The dataset includes 300 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0167805-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.n55d58
title: Occurrence Download

description: A dataset listing the 8 species recorded in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Inia geoffrensis (Blainville, 1817)"
 ]
}

 The dataset's 8 records were derived from 22 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0255832-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.oqxdpe
title: Occurrence Download

description: A dataset containing 245935 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 {
 "or" : [
 "Country is Israel",
 "Country is Iran (Islamic Republic of)",
 "Country is Türkiye",
 "Country is Saudi Arabia",
 "Country is Armenia",
 "Country is Egypt",
 "Country is Yemen",
 "Country is Oman"
 ]
 },
 "Geometry POLYGON((43.66410497100767 11.294585246572254,37.978573894122995 19.59915500556015,32.15630407979881 28.135785498110167,30.879395676513056 30.31542589094954,31.516547669521753 33.71826605937038,31.012393591438382 36.342203287706795,26.16050083752861 37.52444778493788,24.563876306573828 39.96942097735672,28.73906022913589 42.24688075304704,33.819181657572884 42.8590561010252,39.86837980074954 42.008674756158456,48.915151684203465 42.130969830623485,51.168788597550915 41.41957199917519,51.58845622399066 38.31293114134894,55.9005415824482 39.33397152861343,60.55269403727251 38.13209691218094,63.28004178784412 34.57402850337205,63.80389604080139 31.570283981803172,63.955287575061114 25.544407852096867,61.28523948833907 17.839466382384728,43.66410497100767 11.294585246572254))"
 ]
}

 The dataset includes 245935 records from 547 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021050-180131172636756/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.j6gr8g
title: Occurrence Download

description: A dataset containing 796 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Scolochloa festucacea (Willd.) Link",
 "BasisOfRecord is one of (Specimen)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Continent is North America"
 ]
}

 The dataset includes 796 records from 23 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0177191-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.zvgr8r
title: Occurrence Download

description: A dataset containing 43 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Guzmania globosa L.B.Sm."
 ]
}

 The dataset includes 43 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021049-151016162008034/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.578dur
title: Occurrence Download

description: A dataset containing 2657 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Human Observation",
 {
 "or" : [
 "Country is United Kingdom of Great Britain and Northern Ireland",
 "Country is Ireland"
 ]
 },
 "TaxonKey is Cervus nippon Temminck, 1838"
 ]
}

 The dataset includes 2657 records from 43 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0177203-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.tnrbzq
title: Occurrence Download

description: A dataset containing 2192 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 "Country is Colombia",
 {
 "or" : [
 "Issue is Presumed negated longitude",
 "Issue is Coordinate rounded",
 "Issue is Geodetic datum assumed WGS84",
 "Issue is Presumed negated latitude"
 ]
 },
 "TaxonKey is Carabidae"
 ]
}

 The dataset includes 2192 records from 39 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021050-190415153152247/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.