cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/0m9t-wv33
title: NOAA/WDS Paleoclimatology - Paleo-pCO2 Database Tanzania Early Cenozoic Boron Isotope and CO2 Data

description: The Early Eocene Climate Optimum (EECO, which occurred about 51 to 53 million years ago), was the warmest interval of the past 65 million years, with mean annual surface air temperature over ten degrees Celsius warmer than during the pre-industrial period. Subsequent global cooling in the middle and late Eocene epoch, especially at high latitudes, eventually led to continental ice sheet development in Antarctica in the early Oligocene epoch (about 33.6 million years ago). However, existing estimates place atmospheric carbon dioxide (CO2) levels during the Eocene at 500-3,000 parts per million, and in the absence of tighter constraints carbon-climate interactions over this interval remain uncertain. Here we use recent analytical and methodological developments to generate a new high-fidelity record of CO2 concentrations using the boron isotope (d11B) composition of well preserved planktonic foraminifera from the Tanzania Drilling Project, revising previous estimates. Although species-level uncertainties make absolute values difficult to constrain, CO2 concentrations during the EECO were around 1,400 parts per million. The relative decline in CO2 concentration through the Eocene is more robustly constrained at about fifty per cent, with a further decline into the Oligocene. Provided the latitudinal dependency of sea surface temperature change for a given climate forcing in the Eocene was similar to that of the late Quaternary period, this CO2 decline was sufficient to drive the well documented high- and low-latitude cooling that occurred through the Eocene. Once the change in global temperature between the pre-industrial period and the Eocene caused by the action of all known slow feedbacks (apart from those associated with the carbon cycle) is removed, both the EECO and the late Eocene exhibit an equilibrium climate sensitivity relative to the preindustrial period of 2.1 to 4.6 degrees Celsius per CO2 doubling (66 per cent confidence), which is similar to the canonical range (1.5 to 4.5 degrees Celsius), indicating that a large fraction of the warmth of the early Eocene greenhouse was driven by increased CO2 concentrations, and that climate sensitivity was relatively constant throughout this period.
description: Paleo-CO2 derived from boron isotope measurements on planktonic foraminifera samples from Tanzania Drilling Project cores TDP3/5-1, TDP2/19-1, TDP2/9-3, PP98L-2, and TDP18/18-2 for the early Cenozoic (53.2 - 36.9 ma), contributed to the Paleo-pCO2 Database
DOI: 10.5517/cc9qfhx
title: CCDC 289679: Experimental Crystal Structure Determination

description: Related Article: S.R.Banerjee, K.P.Maresca, K.A.Stephenson, J.F.Valliant, J.W.Babich, W.A.Graham, M.Barzana, Qing Dong, A.J.Fischman, J.Zubieta|2005|Bioconjugate Chem.|16|885|doi:10.1021/bc050040y
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/cc9qfjy
title: CCDC 289680: Experimental Crystal Structure Determination

description: Related Article: S.R.Banerjee, K.P.Maresca, K.A.Stephenson, J.F.Valliant, J.W.Babich, W.A.Graham, M.Barzana, Qing Dong, A.J.Fischman, J.Zubieta|2005|Bioconjugate Chem.|16|885|doi:10.1021/bc050040y
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/cc9qfkz
title: CCDC 289681: Experimental Crystal Structure Determination

description: Related Article: S.R.Banerjee, K.P.Maresca, K.A.Stephenson, J.F.Valliant, J.W.Babich, W.A.Graham, M.Barzana, Qing Dong, A.J.Fischman, J.Zubieta|2005|Bioconjugate Chem.|16|885|doi:10.1021/bc050040y
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: 10.25921/0ggs-nm77
title: NOAA/WDS Paleoclimatology - Beaufort Sea Foraminiferal d18O and d13C Data around the Younger Dryas

description: A period of cooling about 13,000 years ago interrupted about 2,000 years of deglacial warming. Known as the Younger Dryas (YD), the event is thought to have resulted from a slowdown of the Atlantic meridional overturning circulation in response to a sudden flood of Laurentide Ice Sheet meltwater that reached the Nordic Seas. Oxygen isotope evidence for a local source of meltwater to the open western North Atlantic from the Gulf of St Lawrence has been lacking. Here we report that the eastern Beaufort Sea contains the long-sought signal of 18O-depleted water. Beginning at ~12.94?±?0.15 thousand years ago, oxygen isotopes in the planktonic foraminifera from two sediment cores as well as sediment and seismic data indicate a flood of meltwater, ice and sediment to the Arctic via the Mackenzie River that lasted about 700 years. The minimum in the oxygen isotope ratios lasted ~130 years. We suggest that the floodwater travelled north along the Canadian Archipelago and then through the Fram Strait to the Nordic Seas, where freshening and freezing near sites of deep-water formation would have suppressed convection and caused the YD cooling by reducing the meridional overturning.
description: Provided Keywords: North Atlantic Oscillation, radiocarbon dating, foraminifera, oxygen isotopes
DOI: 10.5517/cc9qfl0
title: CCDC 289682: Experimental Crystal Structure Determination

description: Related Article: S.R.Banerjee, K.P.Maresca, K.A.Stephenson, J.F.Valliant, J.W.Babich, W.A.Graham, M.Barzana, Qing Dong, A.J.Fischman, J.Zubieta|2005|Bioconjugate Chem.|16|885|doi:10.1021/bc050040y
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/cc9qfm1
title: CCDC 289683: Experimental Crystal Structure Determination

description: Related Article: S.R.Banerjee, K.P.Maresca, K.A.Stephenson, J.F.Valliant, J.W.Babich, W.A.Graham, M.Barzana, Qing Dong, A.J.Fischman, J.Zubieta|2005|Bioconjugate Chem.|16|885|doi:10.1021/bc050040y
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: 10.13140/rg.2.2.13269.01761
title: Dataset for Chapter 4 of Modeling the Habitat and Spread of the Eastern Fox Squirrel and its Impacts on the Western Gray Squirrel in California
DOI: 10.13140/rg.2.2.20137.19049
title: Origin of financial resources of participants for financing their work trips abroad
DOI: 10.25921/0pvs-s821
title: NOAA/WDS Paleoclimatology - Paleo-pCO2 Database Early Miocene Stomata CO2 Data

description: Premise of the Study 
The global climate during the early Miocene was warmer than the present and preceded the even warmer middle Miocene climatic optimum. The paleo-CO2 records for this interval suggest paradoxically low concentrations (<450 ppm) that are difficult to reconcile with a warmer-than-present global climate.
Methods
In this study, we use a leaf gas-exchange model to estimate CO2 concentrations using stomatal characteristics of fossil leaves from a late early Miocene Neotropical assemblage from Panama that we date to 18.01 ± 0.17 Ma via 238U/206Pb zircon geochronology. We first validated the model for Neotropical environments by estimating CO2 from canopy leaves of 21 extant species in a natural Panamanian forest and from leaves of seven Neotropical species in greenhouse experiments at 400 and 700 ppm.
Key Results
The results showed that the most probable combined CO2 estimate from the natural forests and 400 ppm experiments is 475 ppm, and for the 700 ppm experiments is 665 ppm. CO2 estimates from the five fossil species exhibit bimodality, with two species most consistent with a low mode (528 ppm) and three with a high mode (912 ppm).
Conclusions
Despite uncertainties, it is very likely (at >95% confidence) that CO2 during the late early Miocene exceeded 400 ppm. These results revise upwards the likely CO2 concentration at this time, more in keeping with a CO2-forced greenhouse climate.
description: Stomata Paleo-CO2 data from Londoño et al. 2018, contributed to the Paleo-pCO2 Database
DOI: 10.5517/cc81r78
title: CCDC 240009: Experimental Crystal Structure Determination

description: Related Article: Rui-Feng Hu, Yao Kang, Jian Zhang, Zhao-Ji Li, Ye-Yan Qin, Yuan-Gen Yao|2005|Z.Anorg.Allg.Chem.|631|3053|doi:10.1002/zaac.200500286
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/cc9ft1k
title: CCDC 281388: Experimental Crystal Structure Determination

description: Related Article: Jung-Hsuan Chen, U.Venkatesham, Li-Chen Lee, Kwunmin Chen|2006|Tetrahedron|62|887|doi:10.1016/j.tet.2005.10.042
description: Related Article: N.A.Kulkarni, Shy-Guey Wang, Li-Chen Lee, Huei Ru Tsai, U.Venkatesham, Kwunmin Chen|2006|Tetrahedron:Asymm.|17|336|doi:10.1016/j.tetasy.2006.01.011
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: 10.25921/0n6c-hn91
title: NOAA/WDS Paleoclimatology - Sauchyn - Crandell Mountain - PSME - ITRDB CANA572

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: Upper Missouri River Basin Streamflow project NOAA Template Raw Measurements file added 2020-01-15.
DOI: 10.5517/cc9ft2l
title: CCDC 281389: Experimental Crystal Structure Determination

description: Related Article: Jung-Hsuan Chen, U.Venkatesham, Li-Chen Lee, Kwunmin Chen|2006|Tetrahedron|62|887|doi:10.1016/j.tet.2005.10.042
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/cc9v2v1
title: CCDC 293193: Experimental Crystal Structure Determination

description: Related Article: M.D.Godbole, A.C.G.Hotze, R.Hage, A.M.Mills, H.Kooijman, A.L.Spek, E.Bouwman|2005|Inorg.Chem.|44|9253|doi:10.1021/ic051223z
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: 10.25921/0q6b-hm26
title: NOAA/WDS Paleoclimatology - Wang - West Tianmu Mountain - PITW - ITRDB CHIN082

description: Although it has been widely recognized that tree-ring response to climate drivers may change over recent decades, often due to anthropogenic environment changes, there are fewer reports of such changes in earlier pre-warming periods. In this paper we report on the pre-1930 unstable relationship between climate and tree-ring width (TRW) of Pinus taiwanensis Hayata in southeastern China based on reliable long-term temperature data. TRW of P. taiwanensis is strongly controlled by temperatures in two seasons, previous spring to summer (March to August, mainly June to July) and previous winter to current spring (December to March). However, TRW are insensitive to previous spring to summer temperature between 1890 and 1930. Reduced summer temperature variability, changing regimes of spring-summer temperature and precipitation, and complicated tree physiological processes behind the complex growth-climate relationship are the more likely causes of this phenomenon. This study adds to the body of knowledge that lower climate sensitivity of tree rings is not specific to the most recent decades.
description: NOAA Template Raw Measurements file added 2020-01-15.
DOI: 10.5517/cc9v33b
title: CCDC 293201: Experimental Crystal Structure Determination

description: Related Article: F.Rieger, A.-V.Mudring|2005|Inorg.Chem.|44|9340|doi:10.1021/ic051430z
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: 10.25921/03fd-p225
title: NOAA/WDS Paleoclimatology - Klang Cave, Thailand 2700 Year Stalagmite d18O Data and ITCZ Shift Index

description: Tropical rainfall variability is closely linked to meridional shifts of the Intertropical Convergence Zone (ITCZ) and zonal movements of the Walker circulation. The characteristics and mechanisms of tropical rainfall variations on centennial to decadal scales are, however, still unclear. Here, we reconstruct a replicated stalagmite-based 2,700-y-long, continuous record of rainfall for the deeply convective northern central Indo-Pacific (NCIP) region. Our record reveals decreasing rainfall in the NCIP over the past 2,700 y, similar to other records from the northern tropics. Notable centennial- to decadal-scale dry climate episodes occurred in both the NCIP and the southern central Indo-Pacific (SCIP) during the 20th century [Current Warm Period (CWP)] and the Medieval Warm Period (MWP), resembling enhanced El Nino-like conditions. Further, we developed a 2,000-y-long ITCZ shift index record that supports an overall southward ITCZ shift in the central Indo-Pacific and indicates southward mean ITCZ positions during the early MWP and the CWP. As a result, the drying trend since the 20th century in the northern tropics is similar to that observed during the past warm period, suggesting that a possible anthropogenic forcing of rainfall remains indistinguishable from natural variability.
description: Speleothem oxygen isotope records from Klang Cave, Thailand over the past 2700 years, plus ITCZ Shift Index reconstruction
DOI: 10.5517/cc81p10
title: CCDC 239941: Experimental Crystal Structure Determination

description: Related Article: H.Imai, K.Inoue, K.Kikuchi|2005|Polyhedron|24|2808|doi:10.1016/j.poly.2005.03.159
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/cc95qtz
title: CCDC 273631: Experimental Crystal Structure Determination

description: Related Article: Wenfeng Zhu, A.C.Marr, Qiang Wang, F.Neese, D.J.E.Spencer, A.J.Blake, P.A.Cooke, C.Wilson, M.Schroder|2005|Proc.Nat.Acad.Sci.USA|102|18280|doi:10.1073/pnas.0505779102
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: 10.25921/0tvy-cm60
title: NOAA/WDS Paleoclimatology - Kuna Ba Cave, Iraq 4,000 Year Speleothem Stable Isotope Data

description: Northern Iraq was the political and economic center of the Neo-Assyrian Empire (c. 912 to 609 BCE)-the largest and most powerful empire of its time. After more than two centuries of regional dominance, the Neo-Assyrian state plummeted from its zenith (c. 670 BCE) to complete political collapse (c. 615 to 609 BCE). Earlier explanations for the Assyrian collapse focused on the roles of internal politico-economic conflicts, territorial overextension, and military defeat. Here, we present a high-resolution and precisely dated speleothem record of climate change from the Kuna Ba cave in northern Iraq, which suggests that the empire's rise occurred during a two-centuries-long interval of anomalously wet climate in the context of the past 4000 years, while megadroughts during the early-mid seventh century BCE, as severe as recent droughts in the region but lasting for decades, triggered a decline in Assyria's agrarian productivity and thus contributed to its eventual political and economic collapse.
description: Speleothem stable isotope (d18O, d13C) data from 2 stalagmites (NIR-1 and NIR-2) collected in Kuna Ba Cave, northern Iraq, for the past 4,000 years.
DOI: 10.5517/cc9sqj9
title: CCDC 291881: Experimental Crystal Structure Determination

description: Related Article: D.Robertson, J.F.Cannon, N.Gerasimchuk|2005|Inorg.Chem.|44|8326|doi:10.1021/ic050465w
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/cc9vf1l
title: CCDC 293509: Experimental Crystal Structure Determination

description: Related Article: A.R.Choudhury, N.Winterton, A.Steiner, A.I.Cooper, K.A.Johnson|2005|J.Am.Chem.Soc.|127|16792|doi:10.1021/ja055956u
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/cc5q589
title: CCDC 170260: Experimental Crystal Structure Determination

description: Related Article: S.S.Tonde, A.S.Kumbhar, S.B.Padhye, R.J.Butcher|2006|J.Inorg.Biochem.|100|51|doi:10.1016/j.jinorgbio.2005.09.014
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/cc8mbdl
title: CCDC 256909: Experimental Crystal Structure Determination

description: Related Article: N.T.Madhu, Jin-Kui Tang, I.J.Hewitt, R.Clerac, W.Wernsdorfer, J.van Slageren, C.E.Anson, A.K.Powell|2005|Polyhedron|24|2864|doi:10.1016/j.poly.2005.03.015
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: 10.25921/0gr3-tx74
title: NOAA/WDS Paleoclimatology - Wilson - Coal Lake Road - PCGL - ITRDB CANA594

description: In north-western North America, the so-called divergence problem (DP) is expressed in tree ring width (RW) as an unstable temperature signal in recent decades. Maximum latewood density (MXD), from the same region, shows minimal evidence of DP. While MXD is a superior proxy for summer temperatures, there are very few long MXD records from North America. Latewood blue intensity (LWB) measures similar wood properties as MXD, expresses a similar climate response, is much cheaper to generate and thereby could provide the means to profoundly expand the extant network of temperature sensitive tree-ring (TR) chronologies in North America. In this study, LWB is measured from 17 white spruce sites (Picea glauca) in south-western Yukon to test whether LWB is immune to the temporal calibration instabilities observed in RW. A number of detrending methodologies are examined. The strongest calibration results for both RW and LWB are consistently returned using age-dependent spline (ADS) detrending within the signal-free (SF) framework. RW data calibrate best with June-July maximum temperatures (Tmax), explaining up to 28% variance, but all models fail validation and residual analysis. In comparison, LWB calibrates strongly (explaining 43-51% of May-August Tmax) and validates well. The reconstruction extends to 1337 CE, but uncertainties increase substantially before the early 17th century because of low replication. RW-, MXD- and LWB-based summer temperature reconstructions from the Gulf of Alaska, the Wrangell Mountains and Northern Alaska display good agreement at multi-decadal and higher frequencies, but the Yukon LWB reconstruction appears potentially limited in its expression of centennial-scale variation. While LWB improves dendroclimatic calibration, future work must focus on suitably preserved sub-fossil material to increase replication prior to 1650 CE.
description: NOAA Template Raw Measurements file added 2020-03-09.
DOI: 10.5517/cc8sskc
title: CCDC 262153: Experimental Crystal Structure Determination

description: Related Article: S.C.Manna, S.Konar, E.Zangrando, K.Okamoto, J.Ribas, N.R.Chaudhuri|2005|Eur.J.Inorg.Chem.|2005|4646|doi:10.1002/ejic.200500258
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.