cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/7q25-5678
title: NOAA/WDS Paleoclimatology - Tianmen Cave, Tibet MIS5 Stalagmite Oxygen Isotope Data

description: Oxygen isotope (d18O) records of two stalagmites from Tianmen Cave, on the south-central Tibetan Plateau, grew during much of Marine Isotope Stage 5. The Tianmen record, the first cave record from the Tibetan Plateau, characterizes a precipitation d18O history larger in amplitude but similar in structure to Asian Monsoon records from the adjacent regions, providing essential evidence that the Asian Monsoon system, including the East Asian and Indian Monsoon subsystems, responds largely to changes in Northern Hemisphere summer insolation. Extremely low d18O values during Marine Isotope Stages 5a, 5c, and 5e suggest that precipitation, rather than temperature, was a major factor controlling d18O in precipitation on orbital time scales in the south-central Tibetan Plateau. The Tianmen record may help in the interpretation of regional ice core d18O records. The large range of orbital-scale shifts in meteoric d18O (>9‰) raises important considerations related to reconstructing the uplift history of the plateau.
description: Stalagmite oxygen isotope data from Tianmen Cave, Tibet, 
U-Th dated between 125 and 76 KYrBP (Marine Isotope Stage 5).  

Two stalagmites, TM-2 and TM-5, were collected ~150 m from 
the entrance of Tianmen Cave, Bange, Tibet, China. The Tianmen 
record consists of 334 stable isotope measurements, with time 
resolutions between 25 and 165 years. Age model was constructed 
based on 21 samples dated by the U-Th method using inductively 
coupled plasma-mass spectrometry (ICP-MS).
DOI: 10.25921/7z8k-h639
title: NOAA/WDS Paleoclimatology - Esper - Pakistan low Sat1 - JUSP - ITRDB PAKI014

description: We present an analysis of 28 juniper tree-ring sites sampled over the last decades by several research teams in the Tien Shan and Karakorum mountains of western central Asia. Ring-width chronologies were developed on a site-by-site basis, using a detrending technique designed to retain low-frequency climate variations. Site chronologies were grouped according to their distance from the upper timberline in the Tien Shan (~3,400 m a.s.l.) and Karakorum (~4,000 m), and low- and high-elevation composite chronologies combining data from both mountain systems developed. Comparison of these elevational subsets revealed significant coherence (r = 0.72) over the 1438–1995 common period, which is inconsistent with the concept of differing environmental signals captured in tree-ring data along elevational gradients. It is hypothesized that the uniform growth behavior in central Asian juniper trees has been forced by solar radiation variations controlled via cloud cover changes, but verification of this assumption requires further fieldwork. The high-elevation composite chronology was further compared with existing temperature reconstructions from the Karakorum and Tien Shan, and long-term trend differences discussed. We concluded that the extent of warmth during medieval times cannot be precisely estimated based on ring-width data currently available.
description: Purpose of Collection: 
# Dendroclimatology
# 
# Cores and cross-sections are stored at: 
# WSL
#  NOAA Template Raw Measurements file added 2019-04-08.
DOI: 10.25921/7mxk-b025
title: NOAA/WDS Paleoclimatology - Brown - Tollymore Forest Park - QUSP - ITRDB BRIT057

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: 10.25921/751v-k211
title: NOAA/WDS Paleoclimatology - Bear Lake, Utah-Idaho 19,000 Year Pollen Data

description: Pollen analysis of sediments from core BL96-2 at Bear Lake (42°N, 111°20'W), located on the Utah-Idaho border in America's western cordillera, provides a record of regional vegetation changes from full glacial to the late Holocene. The reconstructed vegetation records are mostly independent of Bear Lake's hydrologic state and are therefore useful for identifying times when climate forcing contributed to lake changes. The Bear Lake pollen results indicate that significant changes in the Bear Lake vegetation occurred during the intervals 15,300-13,900, 12,000-10,000, 7500-6700, 6700-5300, 3800-3600, and 2200-1300 cal yr B.P. These intervals coincide with regional shifts in vegetation and climate, documented in pollen, isotope and biogeographicrecords in the Basin and Range region, suggesting that large-scale climatewas the primary forcing factor for these intervals of change. Maximum aridity and warmth is indicated from 12,000 to 7500 cal yr B.P., followed by intervals of generally more mesic and cool conditions, especially after 7500 cal yr B.P.
description: Pollen data from sediment core 96-2, Bear Lake, Utah-Idaho (USA).
DOI: 10.25921/7btg-cx37
title: NOAA/WDS Paleoclimatology - Western Equatorial Pacific ODP806B Late Pliocene Mg/Ca, d18O, and SST

description: Late Pliocene foraminiferal Mg/Ca and d18O records from Ocean Drilling Program Hole 806B in the western equatorial Pacific (WEP) reveal warm pool climate evolution during the onset of Northern Hemisphere glaciation, 3.1-2.3 Myr B.P. Mg/Ca data indicate an average late Pliocene sea surface temperature (SST) of 27.8°C, a small long-term cooling of 0.3°C between 3.1 and 2.3 Ma, and a glacial-interglacial (G-I) SST range of 2°C throughout this time interval. For comparison, Pleistocene SSTs at this site over the last 0.9 Myr average 27.7°C with a G-I range of 3°C. Orbital-scale variability in Hole 806B SSTs during the late Pliocene occurs predominantly at ~100 ka, in contrast to foraminiferal d18O records, which show a dominant 41 kyr period. Variability at a 41 kyr period, out of phase with local annual insolation changes driven by obliquity, is also observed in the new WEP SST record. The WEP SST record suggests that an ~3°C equatorial Pacific SST zonal gradient prevailed during the late Pliocene, compatible with a weaker Walker circulation. Adjustment of Hole 806B SSTs for past changes in seawater Mg/Ca suggests that SSTs higher than 30°C prevailed at 3 Myr B.P., followed by a progressive cooling of the warm pool through the late Pliocene. The characteristics of late Pliocene tropical climate evolution suggest that atmospheric greenhouse gas forcing played a major role in driving the observed G-I SST changes.
description: Planktonic foraminiferal (G. ruber) Mg/Ca and d18O, plus Sea Surface 
Temperature (SST) and d18Oseawater estimates, for the Late Pliocene  
from Western Equatorial Pacific sediment core ODP806B. 

SST estimated from G. ruber Mg/Ca by the method of Lea et al. [2000]. 
d18O seawater record was calculated by removing the temperature 
component in planktonic d18O using the Mg/Ca derived SSTs and the 
paleotemperature equation of Bemis et al., [1998].
DOI: 10.25921/78zh-f871
title: NOAA/WDS Paleoclimatology - Cook - Tunkhanock - JUVI - ITRDB PA014

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: Purpose of Collection:  
# US National Science Foundation Eastnet Project 
#  NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/7b03-jy63
title: NOAA/WDS Paleoclimatology - Western Tropical Pacific MD98-2181 MIS3 SST Reconstruction

description: Western tropical Pacific sea surface temperatures and Pacific Deep Water temperatures during Marine Isotope Stage 3 have been reconstructed from the d18O and Mg/Ca of planktonic and benthic foraminifera from Marion Dufresne core MD98-2181. This 36m marine core was collected at 6.3ºN from a water depth of 2114 m. With sediment accumulation rates of up to 80 cm/ky, it provides a decadally resolved history of ocean variability during the Last Glacial period. Surface temperatures and salinities at this site varied in close association with millennial-scale atmospheric temperature swings at high northern latitudes as reflected in the GISP2 ice core. At times of colder atmospheric temperatures over Greenland, the western Pacific was more saline and summer season SSTs were ~2ºC colder. These millennial-scale changes within the tropics are attributed to a southward displacement of the summer season ITCZ in response to steeper meridional temperature gradients within the Pacific. The benthic d18O record from MD98-2181 documents upper Pacific Deep Water temperature and salinity variability. Benthic d18O variations of 0.3-0.5 per mil during MIS 3 indicate deep waters within the Pacific were varying by ~1-1.5ºC, with the possibility that some of the variability was due to changing salinity and minor glacial- eustatic changes. The observed deep-water variability correlates to changes in Antarctic surface temperatures and thus reflects changes in Southern Ocean temperatures at the site of Pacific Deep Water formation. The combined planktonic and benthic records from MD98-2181 thus provide a northern and southern hemispheric climate record of anti-phased variability during MIS 3 as has been inferred previously from ice core records. Furthermore, the deep sea temperature excursions appear to have led millennial variations in atmospheric CO2 as recorded in the EDML ice core by ~1 kyr.
description: Stable Isotope and and Mg/Ca data are presented for planktonic 
foraminifera along with benthic foramniferal stable isotope data 
spanning Marine Isotope Stage 3 from western Pacific marine 
sediment core, MD98-2181. The data are used to assess the timing 
and magnitude of tropical Pacific surface water temperature change 
relative to the timing and magnitude of high latitude temperature 
change (as inferred from the benthic stable isotope data).
DOI: 10.25921/7kym-p625
title: NOAA/WDS Paleoclimatology - Littell - Pintlers 2 - LALY - ITRDB MT120

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.
description: Purpose of Collection: Climatology - Snowpack reconstruction
#  NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/7jd8-k502
title: NOAA/WDS Paleoclimatology - EPICA Dome C EDC3 accumulation, thinning and Delta-elevation scenario

description: One-dimensional (1-D) ice flow models are used to construct the age scales at the Dome C and Dome Fuji drilling sites (East Antarctica). The poorly constrained glaciological parameters at each site are recovered by fitting independent age markers identified within each core. We reconstruct past accumulation rates, that are larger than those modelled using the classical vapour saturation pressure relationship during glacial periods by up to a factor 1.5. During the Early Holocene, changes in reconstructed accumulation are not linearly related to changes in ice isotopic composition. A simple model of past elevation changes is developed and shows an amplitude variation of 110-120 m at both sites. We suggest that there is basal melting at Dome C (0.56±0.19 mm/yr). The reconstructed velocity profile is highly non-linear at both sites, which suggests complex ice flow effects. This induces a non-linear thinning function in both drilling sites, which is also characterized by bumps corresponding to variations in ice thickness with time.
description: Accumulation, vertical thinning function and Delta-elevation scenario as used to build the EDC3 age scale. The file gives the EDC3 accumulation, vertical thinning function and Delta-elevation scenario as official for the EPICA Dome C ice core.  Depth refers to the official log depth of the drilling.
DOI: 10.25921/7xxr-vt58
title: NOAA/WDS Paleoclimatology - Subantarctic Atlantic and Subarctic Pacific 3.6 Ma Alkenone SST Reconstructions

description: The cold upwelling "tongue" of the eastern equatorial Pacific is a central energetic feature of the ocean, dominating both the mean state and temporal variability of climate in the tropics and beyond. Recent evidence for the development of the modern cold tongue during the Pliocene-Pleistocene transition has been explained as the result of extratropical cooling that drove a shoaling of the thermocline. We have found that the sub-Antarctic and sub-Arctic regions underwent substantial cooling nearly synchronous to the cold tongue development, thereby providing support for this hypothesis. In addition, we show that sub-Antarctic climate changed in its response to Earth's orbital variations, from a subtropical to a subpolar pattern, as expected if cooling shrank the warm-water sphere of the ocean and thus contracted the subtropical gyres.
description: Two Subpolar paleotemperature records for the past 3.6 million years 
based on the analysis of alkenone unsaturation indices in marine 
sediments.  Cores are located in the sub-Arctic Pacific (ODP Site 882) 
and the sub-Antarctic Atlantic (ODP Site 1090).  The percentage of 
the C37:4 alkenone relative to the total abundance of C37 alkenones 
(%C37:4) in these records is an additional tracer that can be used 
to infer variations in the meridional extent of polar and subpolar 
conditions through time.
DOI: 10.25921/7d2c-zd02
title: NOAA/WDS Paleoclimatology - D'Arrigo - Tombolo - PCGL - ITRDB CANA309

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: 10.25921/7cbf-n631
title: NOAA/WDS Paleoclimatology - Mamet - TUND, Wapusk National Park, Manitoba - LALA - ITRDB CANA281

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: 10.25921/7tx3-hf45
title: NOAA/WDS Paleoclimatology - Vitas - Azuolpamuse - LADE - ITRDB LITH023

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: 10.5517/cc4l8rq
title: CCDC 136733: Experimental Crystal Structure Determination

description: Related Article: R.Streubel, H.Wilkens, P.G.Jones|2000|Chem.-Eur.J.|6|3997|doi:10.1002/1521-3765(20001103)6:21<3997::AID-CHEM3997>3.0.CO;2-W
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc4q511
title: CCDC 140462: Experimental Crystal Structure Determination

description: Related Article: K.Krohn, P.Frese, U.Florke|2000|Chem.-Eur.J.|6|3887|doi:10.1002/1521-3765(20001103)6:21<3887::AID-CHEM3887>3.0.CO;2-3
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc4r2nl
title: CCDC 141349: Experimental Crystal Structure Determination

description: Related Article: D.K.Chand, H.-J.Schneider, A.Bencini, A.Bianchi, C.Giorgi, S.Ciattini, B.Valtancoli|2000|Chem.-Eur.J.|6|4001|doi:10.1002/1521-3765(20001103)6:21<4001::AID-CHEM4001>3.3.CO;2-I
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc548bw
title: CCDC 153057: Experimental Crystal Structure Determination

description: Related Article: Y.In, S.Tani, T.Ishida|2000|Chem.Pharm.Bull.|48|374|doi:10.1248/cpb.48.374
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc548cx
title: CCDC 153058: Experimental Crystal Structure Determination

description: Related Article: Y.In, S.Tani, T.Ishida|2000|Chem.Pharm.Bull.|48|374|doi:10.1248/cpb.48.374
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc5489v
title: CCDC 153056: Experimental Crystal Structure Determination

description: Related Article: H.Otsuka, E.Hirata, A.Takushi, T.Shinzato, Y.Takeda, M.Bando, M.Kido|2000|Chem.Pharm.Bull.|48|547|doi:10.1248/cpb.48.547
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc548dy
title: CCDC 153059: Experimental Crystal Structure Determination

description: Related Article: Y.In, S.Tani, T.Ishida|2000|Chem.Pharm.Bull.|48|374|doi:10.1248/cpb.48.374
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc541dq
title: CCDC 152842: Experimental Crystal Structure Determination

description: Related Article: M.I.Bruce, B.C.Hall, B.W.Skelton, E.R.T.Tiekink, A.H.White, N.N.Zaitseva|2000|Aust.J.Chem.|53|99|doi:10.1071/CH99099
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc541fr
title: CCDC 152843: Experimental Crystal Structure Determination

description: Related Article: M.I.Bruce, B.C.Hall, B.W.Skelton, E.R.T.Tiekink, A.H.White, N.N.Zaitseva|2000|Aust.J.Chem.|53|99|doi:10.1071/CH99099
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc541gs
title: CCDC 152844: Experimental Crystal Structure Determination

description: Related Article: M.I.Bruce, B.C.Hall, B.W.Skelton, E.R.T.Tiekink, A.H.White, N.N.Zaitseva|2000|Aust.J.Chem.|53|99|doi:10.1071/CH99099
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc54bcz
title: CCDC 153120: Experimental Crystal Structure Determination

description: Related Article: M.I.Bruce, B.C.Hall, B.W.Skelton, E.R.T.Tiekink, A.H.White, N.N.Zaitseva|2000|Aust.J.Chem.|53|99|doi:10.1071/CH99099
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.