cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/wmb3-bv41
title: NOAA/WDS Paleoclimatology - China temperature during the past 2000 years

description: We use principal component regression and partial least squares regression to separately reconstruct a composite series of temperature variations in China, and associated uncertainties, at a decadal resolution over the past 2000 yr. The reconstruction is developed using proxy temperature data with relatively high confidence levels from five regions across China, and using a temperature series from observations by the Chinese Meteorological Administration, covering the period from 1871 to 2000. Relative to the 1851–1950 climatology, our two reconstructions show four warm intervals during AD1–AD200, AD551–AD 760, AD951–AD 1320, and after AD1921, and four cold intervals during AD 201–AD 350, AD 441–AD 530, AD781–AD950, and AD1321–AD 1920. The temperatures during AD981–AD 1100 and AD1201–AD 1270 are comparable to those of the Present Warm Period, but have an uncertainty of ±0.28°C to ±0.42°C at the 95% confidence interval. Temperature variations over China are typically in phase with those of the Northern Hemisphere (NH) after 1000, a period which covers the Medieval Climate Anomaly, the Little Ice Age, and the Present Warm Period. In contrast, a warm period in China during AD541–AD 740 is not obviously seen in the NH.
description: Dataset of China temperature reconstruction from 1 C.E. to 2000C.E. has 10-year time resolution. PLS is reconstruction using partial Least Square regression method in the paper; PLS_UP and PLS_BO are the uncertainties at 95% confidence level; PC is reconstruction using Principle component regression method, PC_UP and PC_BO are same with PLS_UP and PLS_BO.
DOI: 10.25921/wjwx-p464
title: NOAA/WDS Paleoclimatology - Touchan - Bear Canyon West - PSME - ITRDB NM586

description: Drought is a recurring phenomenon in the American Southwest. Since the frequency and severity of hydrologic droughts and other hydroclimatic events are of critical importance to the ecology and rapidly growing human population of this region, knowledge of long-term natural hydroclimatic variability is valuable for resource managers and policy-makers. An October-June precipitation reconstruction for the period AD 824-2007 was developed from multi-century tree-ring records of Pseudotsuga menziesii (Douglas-fir), Pinus strobiformis (Southwestern white pine) and Pinus ponderosa (Ponderosa pine) for the Jemez Mountains in Northern New Mexico. Calibration and verification statistics for the period 1896-2007 show a high level of skill, and account for a significant portion of the observed variance (>50%) irrespective of which period is used to develop or verify the regression model. Split-sample validation supports our use of a reconstruction model based on the full period of reliable observational data (1896-2007). A recent segment of the reconstruction (2000-2006) emerges as the driest 7-year period sensed by the trees in the entire record. That this period was only moderately dry in precipitation anomaly likely indicates accentuated stress from other factors, such as warmer temperatures. Correlation field maps of actual and reconstructed October-June total precipitation, sea surface temperatures and 500-mb geopotential heights show characteristics that are similar to those indicative of El Niño-Southern Oscillation patterns, particularly with regard to ocean and atmospheric conditions in the equatorial and north Pacific. Our 1184-year reconstruction of hydroclimatic variability provides long-term perspective on current and 20th century wet and dry events in Northern New Mexico, is useful to guide expectations of future variability, aids sustainable water management, provides scenarios for drought planning and as inputs for hydrologic models under a broader range of conditions than those provided by historical climate records.
description:  NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/w2qv-kw40
title: NOAA/WDS Paleoclimatology - Bigler - Sils-Maria GR Resgia - PICE - ITRDB SWIT275

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: 10.15468/dl.kf42tv
title: Occurrence Download

description: A dataset containing 2320 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-77.3399 3.63687,-78.28494 3.08061,-78.78736 2.52436,-78.18325 1.70493,-77.49541 2.07577,-77.13654 2.64398,-76.99897 2.88921,-76.93318 3.22416,-76.80757 3.60098,-76.74178 3.93593,-76.95112 4.10341,-77.32794 3.9778,-77.3399 3.63687))",
 "TaxonKey is Squamata"
 ]
}

 The dataset includes 2320 records from 38 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024633-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25921/wrzc-rh22
title: NOAA/WDS Paleoclimatology - Emerald Basin MC-29D 1600 Year Multiproxy Sediment Data

description: A multicore from Emerald Basin, on the continental margin off Nova Scotia, has a modern 14C age at the top, and other 14C dates indicate a linear sedimentation rate of ~30 cm/ka to 1600 calendar years BP. This rate is great enough to record century-to-millennial scale changes in the surface and deep (~250 m) waters in the basin that are influenced by the Labrador Current. We applied five proxies for seawater temperature changes to the sediments of Emerald Basin, including the percent abundance and the oxygen isotope ratio (d18O) of the polar planktonic foraminifer N. pachyderma (s.), the unsaturation ratio of alkenones (Uk'37) produced by prymnesiophyte phytoplankton, and the d18O and Mg/Ca of benthic foraminifera. All five proxies indicate the ocean warmed suddenly sometime in the past 150 years or so.  The exact timing of this event is uncertain because 14C dating is inaccurate in recent centuries, but this abrupt warming probably correlates with widespread evidence for warming in the Arctic in the nineteenth century.  Because the Canadian Archipelago is one of the two main sources for the Labrador Current, warming and melting of ice caps in that region may have affected Labrador Current properties. Before this recent warming, sea surface temperature was continually lower by 1-2°C, and bottom water was colder by about 6°C in Emerald Basin.  These results suggest that there was no Medieval Warm Period in the coastal waters off Nova Scotia. Because there is also no evidence of medieval warming in the Canadian archipelago, it seems likely that coastal waters from Baffin Bay to at least as far south as Nova Scotia were continually cold for ~1500 of the past 1600 years.
description: High resolution multiproxy sediment data from Emerald Basin,  
offshore Nova Scotia, Canada covering the last 1600 years.
DOI: 10.25921/wnc6-1r75
title: NOAA/WDS Paleoclimatology - Davi - Shiretoko - PCGN - ITRDB JAPA011

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 2019-04-08.
DOI: 10.25921/w3j2-0m24
title: NOAA/WDS Paleoclimatology - Gray - Well's Draw - PIED - ITRDB UT527

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/ws5j-hv16
title: NOAA/WDS Paleoclimatology - Pederson - Flint Creek Range Update - LALY - ITRDB MT157

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: 10.25921/w3j3-f325
title: NOAA/WDS Paleoclimatology - Laguna de Los Anteojos, Venezuela Younger Dryas Sediment Data

description: A radiocarbon dated sediment record from Laguna de Los Anteojos, a cirque lake in the Mérida Andes of Venezuela, indicates that warmer and wetter atmospheric conditions occurred in the northern tropics at the onset of the Bølling (∼ 14,600 cal yr BP), and abruptly colder and drier conditions around the time of the Younger Dryas (YD). Geochemical and clastic sediment analyses from Los Anteojos show that glaciers advanced at ∼ 12,850 cal yr BP, reached their YD maximum extent at ∼ 12,650 cal yr BP, and then retreated until complete deglaciation of the watershed at ∼ 11,750 cal yr BP. The onset of warmer conditions that ended the coldest phase of the YD occurred several hundred years earlier at Los Anteojos than in the high latitudes of the Northern Hemisphere. During the peak YD glacial advance, glacier equilibrium-line altitudes in the region were ∼ 360 to 480 m lower, and temperature was ∼ 2.2 to 2.9 °C colder than modern. Independent palynological evidence from the Los Anteojos sediment core indicates that the northern Andes were more arid and at least 2.3 °C colder during the YD. The direction and timing of glacial fluctuations in Venezuela are consistent with observations of marine sediment records from the Cariaco Basin that suggest abrupt cooling occurred at ∼ 12,850 cal yr BP, followed by a shift to higher temperature after ∼ 12,300 cal yr BP. The timing and pattern of climatic changes in northern South America are also consistent with paleoclimate records from the southern Tropical Andes that suggest a southward shift in the position of the Intertropical Convergence Zone occurred at the start of the cooling event, followed by a return to wetter conditions in northern South America during the late stages of the YD. The early warming of the tropical atmosphere and invigoration of the hydrologic cycle likely contributed to the shift to increased temperature in the higher latitudes of the Northern Hemisphere at the end of the late Glacial stage.
description: Multiproxy lake sediment data from Laguna de Los Anteojos 
in the Mérida Andes of Venezuela, covering the Younger Dryas 
climate event.
DOI: 10.25921/w88s-g303
title: NOAA/WDS Paleoclimatology - Bräker - Le Crêt rond - PCAB - ITRDB SWIT204

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: 
# Plentering
# 
# Cores and cross-sections are stored at: 
# disposed
# 
# References:
# Zingg, A., (1996): 
# Diameter and Basal Area Increment in Permanent Growth 
# and Yield Plots in Switzerland. In: Spiecker, H.; 
# Mielikainen, K.; Kohl, M.; Skovsgaard, J.P. (eds) 
# Growth Trends in European Forests. 
# European Forest Institute Research Report No.5.
# 
# 
# Notes: 
# Slope N 30% 
# Formerly Buttes_Fichte_n26_1990.fh
# 
#  NOAA Template Raw Measurements file added 2019-02-05.
DOI: 10.25921/w3yg-xe03
title: NOAA/WDS Paleoclimatology - Central European 500 Year Temperature Reconstructions

description: Monthly temperature series for Central Europe back to AD 1500 are developed from documentary index series from Germany, Switzerland and the Czech Republic (1500–1854) and 11 instrumental temperature records (1760–2007). Documentary evidence from the Low Countries, the Carpathian Basin and Poland are used for cross-checking for earlier centuries. The instrumental station records are corrected for inhomogeneities, including insufficient radiation protection of early thermometers and the urban heat island effect. For overlapping period (1760-1854), the documentary data series correlate with instrumental temperatures, most strongly in winter (86% explained variance in January) and least in autumn (56% in September). For annual average temperatures, 81% of the variance is explained. Verification statistics indicate high reconstruction skill for most months and seasons. The last 20 years (since 1988) stand out as very likely the warmest 20-year period, accounting for the calibration uncertainty and decreases in proxy data quality before the calibration period. The new reconstruction displays a previously unobserved long-term decrease in DJF, MAM and JJA temperature variability over last five centuries. Compiled monthly, seasonal and annual series can be used to improve the robustness of gridded large-scale European temperature reconstructions and possible impact studies. Further improvement of the reconstruction would be achieved if documentary data from other European countries are further developed.
description: Monthly, seasonal and annual temperatures for Central Europe reconstructed from descriptive qualitative documentary sources. Documentary sources used in the form of indices. Monthly indices used at 7-degree scale (-3 means extremely cold conditions, -2 very cold, -1 cold, 0 normal, +1 warm, +2 very warm, +3 extremely warm). Seasonal and annual indices were calculated as a sum of corresponding monthly values. Index series from Germany, Switzerland and the Czech Lands were used for final reconstruction. Temperatures are expressed as anomalies from the 1961–1990 average. Documentary indices are unitless.
DOI: 10.25921/wqa8-k570
title: NOAA/WDS Paleoclimatology - Juxtlahuaca Cave, Mexico 2400 Year d18O and Precipitation Reconstruction

description: Droughts are a recurring feature of Mexican climate, but few high-resolution data are available to test for climate-change forcing of Mesoamerican civilizations. We present a quantitative 2400 yr rainfall reconstruction for the Basin of Mexico, from a precisely dated and highly resolved speleothem, that documents highly variable rainfall over the past 2400 yr. Dry conditions peaked during a 150-yr-long late Classic (ca. 600–900 CE) (Common Era) mega drought that culminated at 770 CE which followed centuries of climatic drying that spanned the fall of the city of Teotihuacán ca. 550 CE. The wettest conditions in the 1450s CE were associated with flooding in the Basin of Mexico. Our data suggest that rainfall variability was likely forced by the El Niño-Southern Oscillation, and impacts on spring-fed irrigation agriculture may have been a stressor on Mesoamerican civilizations.
description: Stalagmite JX-6 oxygen isotope data (d18O) and rainfall reconstruction from Juxtlahuaca Cave, Mexico for the past 2400 years.

The rainfall reconstruction is based on the 5-yr smoothed and 1-yr interpolated d18O data, with ages adjusted 9-years older to account for drip water transit time (see Figure DR2 of Lachniet et al., 2012). 

Juxtlahuaca Cave, near Colotlipa, Guerrero, Mexico: 17.4°N, 99.2°W, 934 m a.s.l.
DOI: 10.25921/w1sp-v389
title: NOAA/WDS Paleoclimatology - West Belukha Plateau Firn Core/Snowpit Isotope and Major Ions Data

description: In the summers of 2001 and 2002, glacio-climatological research was performed at 4110-4120 m a.s.l. on the Belukha snow/firn plateau, Siberian Altai. Hundreds of samples from snow pits and a 21 m snow/firn core were collected to establish the annual/seasonal/monthly depth-accumulation scale, based on stable-isotope records, stratigraphic analyses and meteorological and synoptic data. The fluctuations of water stable-isotope records show well-preserved seasonal variations. The d18O and dD relationships in precipitation, snow pits and the snow/firn core have the same slope to the covariance as that of the global meteoric water line. The origins of precipitation nourishing the Belukha plateau were determined based on clustering analysis of d18O and d-excess records and examination of synoptic atmospheric patterns. Calibration and validation of the developed clusters occurred at event and monthly timescales with about 15% uncertainty. Two distinct moisture sources were shown: oceanic sources with d-excess <12‰, and the Aral-Caspian closed drainage basin sources with d-excess >12‰. Two-thirds of the annual accumulation was from oceanic precipitation, of which more than half had isotopic ratios corresponding to moisture evaporated over the Atlantic Ocean. Precipitation from the Arctic/Pacific Ocean had the lowest deuterium excess, contributing one-tenth to annual accumulation.
description: High resolution d18O, D2H, Na, K, Mg, Ca, Cl, NO3 and SO4 data from the 2001 W. Belukha Snow-Firn Plateau 21m firn-ice core and snow pits.  
21 m Depth Firn-Ice Core (49°48.308 N  86°33.694 E; 4115 m asl., July 2001)
DOI: 10.25921/wrzn-s265
title: NOAA/WDS Paleoclimatology - Edmondson - Fort McPherson - JUVI - ITRDB NE009

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Raw Measurements file added 2020-01-15.
DOI: 10.25921/wbzv-kx16
title: NOAA/WDS Paleoclimatology - Jacoby - Mandal Hill Monastery - LASI - ITRDB MONG026

description: The Asian monsoon system affects more than half of humanity worldwide, yet the dynamical processes that govern its complex spatiotemporal variability are not sufficiently understood to model and predict its behavior, due in part to inadequate long-term climate observations. Here we present the Monsoon Asia Drought Atlas (MADA), a seasonally resolved gridded spatial reconstruction of Asian monsoon drought and pluvials over the past millennium, derived from a network of tree-ring chronologies. MADA provides the spatiotemporal details of known historic monsoon failures and reveals the occurrence, severity, and fingerprint of previously unknown monsoon megadroughts and their close linkages to large-scale patterns of tropical Indo-Pacific sea surface temperatures. MADA thus provides a long-term context for recent monsoon variability that is critically needed for climate modeling, prediction, and attribution.
description: Purpose of Collection:  
# Climatology - precipitation analysis NOAA Template Raw Measurements file added 2019-04-08. July 2024: Elevation added by WDS-Paleo using get_elev_point() from the elevatr R package with the AWS Terrain Tiles (aws) and WGS 84 reference frame.
DOI: 10.15468/dl.ugfkrp
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Cyphostemma ternatum (Forssk.) Desc.",
 "HasCoordinate is true",
 "BasisOfRecord is one of (Human Observation, Living Specimen, Occurrence evidence)"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010397-250426092105405/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/rlx-91v-2ka
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/y33-pmb-wmn
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/fx3-ylw-nh9
title: Plantae

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/sr7-yln-t2f
title: Coniporella J.-C. Fischer & J. Thierry, 1972

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/05f-v9z-km8
title: †Hustedia Hall & Clarke, 1893

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/0s5-399-887
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/bkf-13f-pgn
title: Brachiopoda Duméril, 1805

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/0ez-3mv-cv8
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/pch-4t9-lec
title: Equus (Equus) caballus Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/50m-2l1-dr8
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tvl-7dy-mk7
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/h1f-ffg-p55
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/t1f-phh-m5q
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.