cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/mgx9-k639
title: NOAA/WDS Paleoclimatology - Dark Cave, Southwest China 4750 year Stalagmite Stable Isotopes and Trace Elements Data

description: Southwest China has experienced a series of record-breaking droughts over the last two decades, threatening regional ecosystems and exerting socioeconomic effects. Recent studies have focused on the drivers of specific drought events that seasonally vary in occurrence and duration, and a better understanding of regional paleo-records may be key to understanding their underlying mechanisms. Here, we present records of dry and wet alterations from 4730 yr B.P. based on multi-proxy stalagmite records. In particular, we report d13C records at a five-year-resolution, and trace element (Mg, Sr, and Ba) to Ca ratios at a 25-year-resolution for stalagmite HD12 from Dark Cave, southwest China. Statistically significant correlations between d13C and Mg/Ca suggest that they are controlled by a common factor, possibly related to local hydrological variations associated with the monsoon circulation. Long-term trends in the Sr/Ca and Ba/Ca ratios may be related to temperature- and/or precipitation-controlled growth rates. The first principal component (multi-proxy PC1) of d13C and Mg/Ca can be used as the hydrological index in southwest China, indicating high-frequency oscillations on the millennial to multidecadal scales, with four prominent dry periods at 4255±21 to 3430±11, 2605±12 to 2105±9, 1755±11 to 1255±13, and 705±8 to 405±7 yr B.P. This is in general agreement with the monsoon index reconstructed from the detrended and z-scored cave d18O PC1 in southwest China, indicating the sensitivity of regional hydrological response to monsoon intensity. The dry conditions of southwest China on the millennial-centennial scale may be related to solar forcing and the North Atlantic Oscillation owing to their influence on the strength and position of the westerlies and the intertropical convergence zone. Additionally, the El Niño Southern Oscillation could also affect water vapor transport to southwest China by influencing the strength and position of the Walker circulation and Western Pacific Subtropical High. Moreover, the dry periods of southwest China over the past 4730 years are closely related to the warming of the sea surface temperature of the tropical warm pool on multidecadal scales. Such warming may be detrimental to the transport of water vapor from the North Western Pacific and Indian Ocean to southwest China, resulting in a dry regional environment.
description: Oxygen isotopes and chronology from the published works: Gao, K., Jiang, X., He, Y., Hu, H.-M., Shen, C.-C., Zhang, X., 2023. Strong link between Asian summer monsoon and westerlies for the past 4750 years. Palaeogeography, Palaeoclimatology, Palaeoecology 609, 111329. https://doi.org/10/grdkc7
DOI: 10.5517/cc8l1xs
title: CCDC 255685: Experimental Crystal Structure Determination

description: Related Article: N.Kise, K.Ohya, K.Arimoto, Y.Yamashita, Y.Hirano, T.Ono, N.Ueda|2004|J.Org.Chem.|69|7710|doi:10.1021/jo0488917
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/mhbc-w336
title: NOAA/WDS Paleoclimatology - McPartland - Marcell Experimental Forest Jenny's Bog - LALA - ITRDB MN035

description: The Great Lakes region of North America has warmed by 1–2 °C on average since pre-industrial times, with the most pronounced changes observable during winter and spring. Interannual variability in temperatures remains high, however, due to the influence of ocean-atmosphere circulation patterns that modulate the warming trend across years. Variations in spring temperatures determine growing season length and plant phenology, with implications for whole ecosystem function. Studying how both internal climate variability and the “secular” warming trend interact to produce trends in temperature is necessary to estimate potential ecological responses to future warming scenarios. This study examines how external anthropogenic forcing and decadal-scale variability influence spring temperatures across the western Great Lakes region and estimates the sensitivity of regional forests to temperature using long-term growth records from tree-rings and satellite data. Using a modeling approach designed to test for regime shifts in dynamic time series, this work shows that mid-continent spring climatology was strongly influenced by the 1976/1977 phase change in North Pacific atmospheric circulation, and that regional forests show a strengthening response to spring temperatures during the last half-century.
description: collected Sept 2020, 2020 included in chronology
DOI: 10.5517/cc8l1yt
title: CCDC 255686: Experimental Crystal Structure Determination

description: Related Article: N.Kise, K.Ohya, K.Arimoto, Y.Yamashita, Y.Hirano, T.Ono, N.Ueda|2004|J.Org.Chem.|69|7710|doi:10.1021/jo0488917
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/cc8l1zv
title: CCDC 255687: Experimental Crystal Structure Determination

description: Related Article: N.Kise, K.Ohya, K.Arimoto, Y.Yamashita, Y.Hirano, T.Ono, N.Ueda|2004|J.Org.Chem.|69|7710|doi:10.1021/jo0488917
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/mvpv-sk06
title: NOAA/WDS Paleoclimatology - Wager - Logan Canyon - PSME - ITRDB UT570

description: This study assessed the potential for ozone injury to vegetation in the central Wasatch Mountains of Utah by determining if Douglas-fir (Pseudotsuga menziesii var. glauca (Beissn.) Franco) experienced reduced growth since the onset of high ozone concentrations. Dendrochronological techniques were used to model Douglas-fir growth in six central Wasatch Mountain stands, where ozone concentrations suggest the possibility of injury to vegetation, and in four Bear River stands, where ozone concentrations are lower than injury thresholds. Previous-year growth, temperature, and Palmer's Z index variables explained 53–70% of the variance in annual growth. Reduced Douglas-fir growth, not explained by the model or insect and disease records, occurred after 1970 in the central Wasatch Mountains but not in the Bear River Mountains. Douglas-fir growth in the central Wasatch Mountains was slightly negatively correlated with the previous-year ozone concentrations in nearby Salt Lake valley. Between 1962 and 1973, a fluctuating budworm population due to varying spring precipitation was suggested to have replaced precipitation as the factor limiting tree growth, causing an anomalous negative relationship between precipitation and Douglas-fir growth. Because of a suite of possible factors (e.g., undetected climatic variables, fungal pathogens, competitive interactions) influencing Douglas-fir growth, ozone may be one factor in a larger stressor complex reducing growth.
DOI: 10.5517/cc8l20x
title: CCDC 255688: Experimental Crystal Structure Determination

description: Related Article: N.Kise, K.Ohya, K.Arimoto, Y.Yamashita, Y.Hirano, T.Ono, N.Ueda|2004|J.Org.Chem.|69|7710|doi:10.1021/jo0488917
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/m8zr-q017
title: NOAA/WDS Paleoclimatology - Wager - Millcreek Alexander Basin - PSME - ITRDB UT571

description: This study assessed the potential for ozone injury to vegetation in the central Wasatch Mountains of Utah by determining if Douglas-fir (Pseudotsuga menziesii var. glauca (Beissn.) Franco) experienced reduced growth since the onset of high ozone concentrations. Dendrochronological techniques were used to model Douglas-fir growth in six central Wasatch Mountain stands, where ozone concentrations suggest the possibility of injury to vegetation, and in four Bear River stands, where ozone concentrations are lower than injury thresholds. Previous-year growth, temperature, and Palmer's Z index variables explained 53–70% of the variance in annual growth. Reduced Douglas-fir growth, not explained by the model or insect and disease records, occurred after 1970 in the central Wasatch Mountains but not in the Bear River Mountains. Douglas-fir growth in the central Wasatch Mountains was slightly negatively correlated with the previous-year ozone concentrations in nearby Salt Lake valley. Between 1962 and 1973, a fluctuating budworm population due to varying spring precipitation was suggested to have replaced precipitation as the factor limiting tree growth, causing an anomalous negative relationship between precipitation and Douglas-fir growth. Because of a suite of possible factors (e.g., undetected climatic variables, fungal pathogens, competitive interactions) influencing Douglas-fir growth, ozone may be one factor in a larger stressor complex reducing growth.
DOI: 10.5517/cc8l21y
title: CCDC 255689: Experimental Crystal Structure Determination

description: Related Article: D.Z.Wang, T.J.Katz, J.Golen, A.L.Rheingold|2004|J.Org.Chem.|69|7769|doi:10.1021/jo048707h
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/cc8l22z
title: CCDC 255690: Experimental Crystal Structure Determination

description: Related Article: M.Sanz, T.Cuenca, M.Galakhov, A.Grassi, R.K.J.Bott, D.L.Hughes, S.J.Lancaster, M.Bochmann|2004|Organometallics|23|5324|doi:10.1021/om049596f
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/cc8l230
title: CCDC 255691: Experimental Crystal Structure Determination

description: Related Article: V.V.Burlakov, P.Arndt, W.Baumann, A.Spannenberg, U.Rosenthal|2004|Organometallics|23|5188|doi:10.1021/om0496885
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/mer4-4424
title: NOAA/WDS Paleoclimatology - Guizhouxinv Cave d13C, d18O, Sr/Ca, Mg/Ca, and Lamina Thickness Data from 5866-3655 yrs BP

description: Significant multi-centennial climate oscillations have been documented in a number of well dated climate records across the Holocene epoch and left various imprints in human cultural history. In this study, we developed speleothem d13C, d18O, trace elements, and lamina thickness records from the Yunnan-Guizhou Plateau (YGP). Our high-resolution and precisely dated records show a significant ~550-yr cycle as the dominant pattern of regional temperature and vegetation variations between ~5870 and ~3670 years ago. The phase analyses of the 550-yr cycles among our speleothem records, other Northern Hemisphere climate records, solar activity index, and North Atlantic Meridional overturning circulation (AMOC) variations suggest that this climate cycle has a large spatial extent, and may be causally linked to the AMOC changes through coupled oceanic-atmospheric processes. Additionally, the first cold phase of the ~550-yr cycle in our records coincides with the major cultural development on the YGP at ~5500–5000 years ago, suggesting a critical relationship between climate and prehistorical cultural changes in the region.
description: Provided Keywords: Mid-Holocene, 550-yrs periodicity, oceanic-atmospheric processes, southwestern China, cultural evolution
DOI: 10.5517/cc8l241
title: CCDC 255692: Experimental Crystal Structure Determination

description: Related Article: De-Liang Long, H.Abbas, P.Kogerler, L.Cronin|2004|J.Am.Chem.Soc.|126|13880|doi:10.1021/ja046410v
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/mpp0-jx68
title: NOAA/WDS Paleoclimatology - Touchan - Anapoli Low - PIBR - ITRDB GRC022

description: The first large-scale network of 79 tree-ring chronologies in the Eastern Mediterranean and Near East (EMNE; 33°N–42°N, 21°E–43°E) is described and analyzed to identify the seasonal climatic signal in indices of annual ring width. Correlation analysis and cluster analysis are applied to tree-ring data and gridded climate data to assess the climate signal embedded in the network in preparation for climate field reconstructions and formal proxy/model intercomparison experiments. The lengths of the 79 combined chronologies range from 89 to 990 years. The monthly correlations and partial correlations reveal a pervasive positive association with May, June, and sometimes July precipitation, positive correlations with winter and spring (December through April) temperatures, and negative relationships with May through July temperature, although as expected, there are site-to-site exceptions to these general patterns. Cluster analysis suggests three groups of sites based on their association with climate. The chronologies for the EMNE have coherent seasonal precipitation and temperature signals across a fairly broad geographical domain. The predominant signal is a positive growth response to May–June precipitation. Collectively, the findings suggest that the network can be exploited to develop season-specific field reconstructions of precipitation and drought history in the EMNE.
DOI: 10.5517/cc8l252
title: CCDC 255693: Experimental Crystal Structure Determination

description: Related Article: De-Liang Long, H.Abbas, P.Kogerler, L.Cronin|2004|J.Am.Chem.Soc.|126|13880|doi:10.1021/ja046410v
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/cc8l263
title: CCDC 255694: Experimental Crystal Structure Determination

description: Related Article: De-Liang Long, H.Abbas, P.Kogerler, L.Cronin|2004|J.Am.Chem.Soc.|126|13880|doi:10.1021/ja046410v
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/m8wp-fe32
title: NOAA/WDS Paleoclimatology - Touchan - El Pinar Bayarque - PIHA - ITRDB ESP088

description: The first large-scale network of tree-ring chronologies from the western Mediterranean (WM; 32°N–43°N, 10°W–17°E) is described and analyzed to identify the seasonal climatic signal in indices of annual ring width. Correlation and rotated empirical orthogonal function analyses are applied to 85 tree-ring series and corresponding gridded climate data to assess the climate signal embedded in the network. Chronologies range in length from 80 to 1129 years. Monthly correlations and partial correlations show overall positive associations for Pinus halepensis (PIHA) and Cedrus atlantica (CDAT) with winter (December–February) and spring (March–May) precipitation across this network. In both seasons, the precipitation correlation with PIHA is stronger, while CDAT chronologies tend to be longer. A combination of positive correlations between growth and winter–summer precipitation and negative partial correlations with growing season temperatures suggests that chronologies in at least part of the network reflect soil moisture and the integrated effects of precipitation and evapotranspiration signal. The range of climate response observed across this network reflects a combination of both species and geographic influences. Western Moroccan chronologies have the strongest association with the North Atlantic Oscillation.
DOI: 10.5517/cc83s26
title: CCDC 241957: Experimental Crystal Structure Determination

description: Related Article: A.Huang, J.J.Kodanko, L.E.Overman|2004|J.Am.Chem.Soc.|126|14043|doi:10.1021/ja046690e
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/mb1x-gd09
title: NOAA/WDS Paleoclimatology - Touchan - Chmi n’Qtaan - CDAT - ITRDB MAR033

description: The first large-scale network of tree-ring chronologies from the western Mediterranean (WM; 32°N–43°N, 10°W–17°E) is described and analyzed to identify the seasonal climatic signal in indices of annual ring width. Correlation and rotated empirical orthogonal function analyses are applied to 85 tree-ring series and corresponding gridded climate data to assess the climate signal embedded in the network. Chronologies range in length from 80 to 1129 years. Monthly correlations and partial correlations show overall positive associations for Pinus halepensis (PIHA) and Cedrus atlantica (CDAT) with winter (December–February) and spring (March–May) precipitation across this network. In both seasons, the precipitation correlation with PIHA is stronger, while CDAT chronologies tend to be longer. A combination of positive correlations between growth and winter–summer precipitation and negative partial correlations with growing season temperatures suggests that chronologies in at least part of the network reflect soil moisture and the integrated effects of precipitation and evapotranspiration signal. The range of climate response observed across this network reflects a combination of both species and geographic influences. Western Moroccan chronologies have the strongest association with the North Atlantic Oscillation.
DOI: 10.5517/cc83s37
title: CCDC 241958: Experimental Crystal Structure Determination

description: Related Article: A.Huang, J.J.Kodanko, L.E.Overman|2004|J.Am.Chem.Soc.|126|14043|doi:10.1021/ja046690e
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/cc8l2vr
title: CCDC 255714: Experimental Crystal Structure Determination

description: Related Article: D.F.Taber, Yigang He, Ming Xu|2004|J.Am.Chem.Soc.|126|13900|doi:10.1021/ja045849k
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/m950-tf16
title: NOAA/WDS Paleoclimatology - Touchan - Madisouka - PINI - ITRDB MAR039

description: The first large-scale network of tree-ring chronologies from the western Mediterranean (WM; 32°N–43°N, 10°W–17°E) is described and analyzed to identify the seasonal climatic signal in indices of annual ring width. Correlation and rotated empirical orthogonal function analyses are applied to 85 tree-ring series and corresponding gridded climate data to assess the climate signal embedded in the network. Chronologies range in length from 80 to 1129 years. Monthly correlations and partial correlations show overall positive associations for Pinus halepensis (PIHA) and Cedrus atlantica (CDAT) with winter (December–February) and spring (March–May) precipitation across this network. In both seasons, the precipitation correlation with PIHA is stronger, while CDAT chronologies tend to be longer. A combination of positive correlations between growth and winter–summer precipitation and negative partial correlations with growing season temperatures suggests that chronologies in at least part of the network reflect soil moisture and the integrated effects of precipitation and evapotranspiration signal. The range of climate response observed across this network reflects a combination of both species and geographic influences. Western Moroccan chronologies have the strongest association with the North Atlantic Oscillation.
DOI: 10.5517/cc8l2ws
title: CCDC 255715: Experimental Crystal Structure Determination

description: Related Article: J.S.Figueroa, C.C.Cummins|2004|J.Am.Chem.Soc.|126|13916|doi:10.1021/ja0461522
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.