cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/nf0m-a798
title: NOAA/WDS Paleoclimatology - Pohl et al. 2003 Saltillo Cool Season Precipitation Reconstruction 1782-2000

description: Old Douglas-fir (Pseudotsuga menziesii) trees were sampled in the Sierra Madre Oriental of northeastern Mexico and used to develop a 219-year chronology of earlywood width.  This chronology is correlated with monthly precipitation totals from January to June at Saltillo some 55 km northwest of the collection site.  The chronology was used to reconstruct winter-spring precipitation (January-June total) from 1782-2000.  The reconstruction indicates large interannual, decadal, and multidecadal variability in winter-spring precipitation over Saltillo.  This variability is vaguely apparent in the short and discontinuous instrumental record from 1950-1998, with January-June totals ranging from 15 to 310 mm, multiyear droughts, and a negative trend in January-June precipitation over the last 50 years.  The reconstruction indicates that severe dryness was prevalent over a 24-year period from 1857-1880.  This mid-19th century drought exceeds the duration of any droughts witnessed during the 20th century.  However, three episodes of winter-spring dryness have prevailed in the Saltillo region after 1950, a much higher frequency of decadal drought than estimated over the past 219 years and aggravating the regional water supply problems associated with this booming manufacturing and ranching center.
description: Reconstruction of January-June total precipitation (mm) at Saltillo in Coahuila, Mexico.  Reconstruction based on earlywood width, residual chronology from Las Alazanas, Coahuila, Mexico Douglas-fir tree ring site, approximately 55km southeast of Saltillo in the Sierra Madre Oriental. (Lat= 25-17', Lon= 100-30'W, Elev= 3200m.)  Three separate reconstructionsare presented, using different instrumental calibration time intervals: 1950-1998, 1977-1998, and 1950-1976.  Available instrumental data from Saltillo presented in column 5.
DOI: 10.5517/cc7bzl3
title: CCDC 219095: Experimental Crystal Structure Determination

description: Related Article: A.L.Iglesias, G.Aguirre, R.Somanathan, M.Parra-Hake|2004|Polyhedron|23|3051|doi:10.1016/j.poly.2004.09.007
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/cc7bzm4
title: CCDC 219096: Experimental Crystal Structure Determination

description: Related Article: A.L.Iglesias, G.Aguirre, R.Somanathan, M.Parra-Hake|2004|Polyhedron|23|3051|doi:10.1016/j.poly.2004.09.007
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/nmv4-ef61
title: NOAA/WDS Paleoclimatology - Hughen et al. 2000 Baffin Island 500 Year Summer Temperature Reconstruction

description: Laminated sediments from Upper Soper Lake on southern Baffin Island provide a new 500-year record of temperature change in the Arctic. Radiometric dating, using 210 Pb and Pu, shows that the light- and dark-coloured laminae couplets are annually deposited varves. Dark laminae thickness is strongly correlated to average June temperature from Kimmirut (r = 0.82), reflecting the influence of temperature on snowmelt and fluxes of runoff and suspended sediment. This relationship allowed the construction of a palaeotemperature record that documents large-amplitude interannual to decadal variability superimposed on distinct century-scale trends, including 2°C average warming and maximum temperatures during the 1900s. Similar patterns of change are seen in individual and regionally averaged palaeotemperature records from around the circum-Arctic. Upper Soper Lake records temperatures, rates of change  and variance during the twentieth century that are all anomalously high  within the context of the last 500 years, and outside the observed range of natural variability. Comparisons of Upper Soper Lake and Arctic average palaeotemperature to proxy-records of hypothesized forcing mechanisms suggest that the recent warming trend is mostly due to anthropogenic emissions of atmospheric greenhouse gases. The magnitude of the warming  and decade-scale variability throughout the records, however, indicate that natural forcing mechanisms such as changing solar irradiance and volcanic activity, as well as positive feedbacks within the Arctic environment, also play an important role.
description: Summer temperature reconstruction based on laminae thickness in sediments from Upper Soper Lake, Baffin Island, Canada. 62°55'N 69°53'W
DOI: 10.5517/cc8b1vg
title: CCDC 247995: Experimental Crystal Structure Determination

description: Related Article: G.H.John, I.May, D.Collison, M.Helliwell|2004|Polyhedron|23|3097|doi:10.1016/j.poly.2004.09.010
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/nq7x-3s74
title: NOAA/WDS Paleoclimatology - Hughen et al. 2004 Cariaco Basin 50KYr Radiocarbon Calibration and Reconstruction

description: A series of 14C measurements in Ocean Drilling Program cores from the tropical Cariaco Basin, which have been correlated to the annual-layer counted chronology for the Greenland Ice Sheet Project 2 (GISP2) ice core, provides a high-resolution calibration of the radiocarbon time scale back to 50,000 years before the present. Independent radiometric dating of events correlated to GISP2 suggests that the calibration is accurate. Reconstructed 14C activities varied substantially during the last glacial period, including sharp peaks synchronous with the Laschamp and Mono Lake geomagnetic field intensity minimal and cosmogenic nuclide peaks in ice cores and marine sediments. Simulations with a geochemical box model suggest that much of the variability can be explained by geomagnetically modulated changes in 14C production rate together with plausible changes in deep-ocean ventilation and the global carbon cycle during glaciation.
DOI: 10.5517/cc8b1wh
title: CCDC 247996: Experimental Crystal Structure Determination

description: Related Article: G.H.John, I.May, D.Collison, M.Helliwell|2004|Polyhedron|23|3097|doi:10.1016/j.poly.2004.09.010
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/cc8b1xj
title: CCDC 247997: Experimental Crystal Structure Determination

description: Related Article: G.H.John, I.May, D.Collison, M.Helliwell|2004|Polyhedron|23|3097|doi:10.1016/j.poly.2004.09.010
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/n6qx-nt95
title: NOAA/WDS Paleoclimatology - Wazny - Hajnowka - QURO - ITRDB POLA008

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/cc8861r
title: CCDC 246203: Experimental Crystal Structure Determination

description: Related Article: P.Govindaswamy, Y.A.Mozharivskyj, M.R.Kollipara|2004|Polyhedron|23|3115|doi:10.1016/j.poly.2004.09.031
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/nvp3-bv79
title: NOAA/WDS Paleoclimatology - St. George - Fort Dufferin - QUMA - ITRDB CANA178

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: 10.5517/cc8862s
title: CCDC 246204: Experimental Crystal Structure Determination

description: Related Article: P.Govindaswamy, Y.A.Mozharivskyj, M.R.Kollipara|2004|Polyhedron|23|3115|doi:10.1016/j.poly.2004.09.031
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/naz3-0941
title: NOAA/WDS Paleoclimatology - Florida Straits 20KYr Mg/Ca SST and d18Osw Reconstructions

description: The prevailing paradigm of abrupt climate change holds that rapid shifts associated with the most extreme climate swings of the last glacial cycle were forced by changes in the strength and northward extension of Atlantic Meridional Overturning Circulation (AMOC), resulting in an abrupt reorganization of atmospheric circulation patterns with global teleconnections. To determine the timing of tropical Atlantic atmospheric circulation changes over the past 21 ka BP, we reconstruct high resolution sea surface temperature and d18OSW (a proxy for surface salinity) records based on Mg/Ca ratios and oxygen isotope measurements in the planktonic foraminifera Globigerinoides ruber from a sediment core located on the western margin of the Florida Straits. As a proxy for meltwater discharge influence on Florida Straits surface water salinity, we also measured Ba/Ca ratios in G. ruber from the same core. Results show that riverine influence on Florida Straits surface water started by 17.2 ka BP and ended by 13.6 ka BP, 600 years before the start of the Younger Dryas (YD) cold interval. The initiation of the YD is marked by an abrupt increase in Florida Straits d18OSW values, indicating a shift to elevated sea surface salinity occurring in 130 years, most likely resulting from increased regional aridity and/or reduced precipitation. In order to resolve the timing of tropical atmospheric circulation change relative to AMOC variability across this transition, we compare the timing of surface water changes to a recently published record of Florida Current variability in the same core reconstructed from benthic oxygen isotope measurements. We find synchronous changes in atmospheric and ocean circulation on the transition into the YD, consistent with an abrupt reduction in AMOC as the driver of tropical Atlantic atmospheric circulation change at this time.
description: To determine the timing of tropical Atlantic atmospheric 
circulation changes over the past 20 ka BP, we reconstruct 
high resolution sea surface temperature and d18OSW (a proxy 
for surface salinity) records based on Mg/Ca ratios and 
oxygen isotope measurements in the planktonic foraminifera 
Globigerinoides ruber from a sediment core located on the 
western margin of the Florida Straits. As a proxy for meltwater 
discharge influence on Florida Straits surface water salinity, 
we also measured Ba/Ca ratios in G. ruber from the same core. 
The age model for this core is based on calibrated radiocarbon 
dates from G. ruber and G. sacculifer.
DOI: 10.5517/cc840gv
title: CCDC 242186: Experimental Crystal Structure Determination

description: Related Article: A.M.Z.Slawin, H.L.Milton, J.Wheatley, J.D.Woollins|2004|Polyhedron|23|3125|doi:10.1016/j.poly.2004.09.017
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/cc8863t
title: CCDC 246205: Experimental Crystal Structure Determination

description: Related Article: P.Govindaswamy, Y.A.Mozharivskyj, M.R.Kollipara|2004|Polyhedron|23|3115|doi:10.1016/j.poly.2004.09.031
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/cc840hw
title: CCDC 242187: Experimental Crystal Structure Determination

description: Related Article: A.M.Z.Slawin, H.L.Milton, J.Wheatley, J.D.Woollins|2004|Polyhedron|23|3125|doi:10.1016/j.poly.2004.09.017
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/nwhv-k260
title: NOAA/WDS Paleoclimatology - Akkemik and Aras 2005 South-Central Turkey April-August Precipitation Reconstruction

description: A reconstruction of April–August precipitation (1689–1994) was developed for the region by using Pinus nigra tree rings. A linear regression was performed using the residual chronology, composed of at least nine trees (SSS>0.85). Within this reconstructed period, dry years were distributed generally as 1 year (23 times), rarely 2 years (four times) and very rarely 3 years (one time). According to the results, dry events of 3 years' duration were seen only once (1745–47) in the reconstruction period, and wet events were seen twice (1727–29 and 1900–02). Events of 2 years' duration occurred during all three centuries: 1725–26, 1796–97, 1819–20, 1862–63 and 1927–28 (dry years), and 1770–71, 1901–02 (wet years). In accordance with other studies, the years 1693, 1725, 1819, 1868, 1878, 1887 and 1893, which were below two standard deviations, were determined as the driest years in the eastern Mediterranean basin. The distribution of dry and wet periods over time was irregular, and the time between two dry periods was not less than 6 years. There was a significant negative correlation between concurrent April–August North Atlantic oscillation and instrumental precipitation, but it was lower with reconstructed April–August precipitation and nonsignificant. The present results could be useful in the planning and management of water resources and agricultural activities in the region.
DOI: 10.5517/cc840jx
title: CCDC 242188: Experimental Crystal Structure Determination

description: Related Article: A.M.Z.Slawin, H.L.Milton, J.Wheatley, J.D.Woollins|2004|Polyhedron|23|3125|doi:10.1016/j.poly.2004.09.017
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/n30s-8r33
title: NOAA/WDS Paleoclimatology - Lea et al. 2003 Cariaco Basin Foraminiferal Mg/Ca and SST Reconstruction

description: A high-resolution western tropical Atlantic sea surface temperature (SST) record from the Cariaco Basin on the northern Venezuelan shelf, based on Mg/Ca values in surface-dwelling planktonic foraminifera, reveals that changes in SST over the last glacial termination are synchronous, within ą30 to ą90 years, with the Greenland Ice Sheet Project 2 air temperature proxy record and atmospheric methane record. The most prominent deglacial event in the Cariaco record occurred during the Younger Dryas time interval, when SSTs dropped by 3° to 4°C. A rapid southward shift in the atmospheric intertropical convergence zone could account for the synchroneity of tropical temperature, atmospheric methane, and high-latitude changes during the Younger Dryas.
DOI: 10.5517/cc7vs2x
title: CCDC 234269: Experimental Crystal Structure Determination

description: Related Article: Baolong Li, Xia Zhu, Junhui Zhou, Yanfen Peng, Yong Zhang|2004|Polyhedron|23|3133|doi:10.1016/j.poly.2004.09.025
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/cc7vs3y
title: CCDC 234270: Experimental Crystal Structure Determination

description: Related Article: Baolong Li, Xia Zhu, Junhui Zhou, Yanfen Peng, Yong Zhang|2004|Polyhedron|23|3133|doi:10.1016/j.poly.2004.09.025
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/n0kr-va75
title: NOAA/WDS Paleoclimatology - Gulf of California Deglacial Biogenic SST Reconstructions

description: Centennial-scale records of sea-surface temperature and opal composition spanning the Last Glacial Maximum and Termination 1 (circa 25-6 ka) are presented here from Guaymas Basin in the Gulf of California. Through the application of two organic geochemistry proxies, the UK37'index and the TEX86H index, we present evidence for rapid, stepped changes in temperatures during deglaciation. These occur in both temperature proxies at 13 ka (~3°C increase in 270 years), 10.0 ka (~2°C decrease over ~250 years) and at 8.2 ka (3°C increase in <200 years). An additional rapid warming step is also observed in TEX86H at 11.5 ka. In comparing the two temperature proxies and opal content, we consider the potential for upwelling intensity to be recorded and link this millennial-scale variability to shifting Intertropical Convergence Zone position and variations in the strength of the Subtropical High. The onset of the deglacial warming from 17 to 18 ka is comparable to a "southern hemisphere" signal, although the opal record mimics the ice-rafting events of the north Atlantic (Heinrich events). Neither the modern seasonal cycle nor El Niño/Southern Oscillation patterns provide valid analogues for the trends we observe in comparison with other regional records. Fully coupled climate model simulations confirm this result, and in combination we question whether the seasonal or interannual climate variations of the modern climate are valid analogues for the glacial and deglacial tropical Pacific.
description: Sea surface temperature (SST) reconstructions for the Gulf of California (GOC) based on two organic geochemical proxies, the UK37' index and the TEX86H index.  Data cover the deglacial interval from roughly 25 - 6 ka. 

Giant Calypso core MD02-2515 was collected from Guaymas Basin in the central GOC during the 2002 IMAGES-MONA expedition 

Core MD02-2515: 27°29.01'N, 112°04.46'W, 881 m water depth.
DOI: 10.5517/cc7vs4z
title: CCDC 234271: Experimental Crystal Structure Determination

description: Related Article: Baolong Li, Xia Zhu, Junhui Zhou, Yanfen Peng, Yong Zhang|2004|Polyhedron|23|3133|doi:10.1016/j.poly.2004.09.025
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/nwwn-3g16
title: NOAA/WDS Paleoclimatology - Allen - Mount Arrowsmith Update - PHAS - ITRDB AUSL030

description: Between two and four increment cores were obtained from approximately 20 trees at each of 16 sites of P. aspleniifolius across Tasmania. Four regions were defined and temperature data for climate stations from each of these regions were transformed into dimensionless time series appropriate for each region. The ZI was constructed from Melbourne and Hobart mean sea level pressure (MSLP). Correlations were calculated between climate data and ring widths over most of the 20th century. Data were then segregated into two subperiods to assess whether or not temporal changes in ring width response have occurred over the 20th century.
The dominant feature of the correlation functions was a negative correlation with temperatures of the previous growing season. Correlation between the ZI and ring width is most significant, and positive, in November and March of the previous growing season. Differences in the shape of the correlation functions, and their strength is apparent over the course of the century. In general, correlations have become weaker and less consistent among the 16 sites for the latter part of the century. Temperatures have generally increased during the 1900s over which time period correlations have been calculated.
The temporally changing climatic response in ring widths is consistent with a hypothesis of competition for resources between different parts of a plant. A nonlinear response to climate over a short-time period violates one of the basic assumptions of dendroclimatology, therefore suggesting further investigation of both the physiology of trees used for dendroclimatological purposes and the statistical methods used for climatic reconstruction.
description: NOAA Template Raw Measurements file added 2019-01-24. NOAA Template Raw Measurements file added 2019-02-01.