cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/1tn1-4n64
title: NOAA/WDS Paleoclimatology - Bard et al. 1996 Tahiti Deglacial Relative Sea Level Reconstruction

description: The timing of the last deglaciation is important to our understanding of the dynamics of large ice sheets and their effects on the Earth's surface. Moreover, the disappearance of the glacial ice sheets was responsible for dramatic increases in freshwater fluxes to the oceans, which probably disturbed the ocean's thermohaline circulation and, hence, global climate. Sea-level increases bear witness to the melting of continental ice sheets, but only two such records—from Barbados and New Guinea corals—have been accurately dated. But these corals overlie active subduction zones, where tectonic movements are large and often discontinuous (especially in New Guinea), so the apparent sea-level records may be contaminated by a complex tectonic component. Here we date fossil corals from Tahiti, which is far from plate boundaries (and thus is likely to be tectonically relatively stable) and remote from the locations of large former ice sheets. The resulting record indicates a large sea-level jump shortly before 13,800 calendar years BP, which corresponds to meltwater pulse 1A in the Barbados coral records. The timing of this event is more accurately constrained in the Tahiti record, revealing that the meltwater pulse coincides with a short and intense climate cooling event that followed the initiation of the Bølling–Allerød warm period, but preceded the Younger Dryas cold event by about 1,000 years.
DOI: 10.25921/1ecf-xn73
title: NOAA/WDS Paleoclimatology - Wilson - Zum Peak - PCEN - ITRDB CANA241

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Raw Measurements file added 2019-01-27. NOAA Template Raw Measurements file added 2019-02-04.
DOI: 10.25921/1j10-kb14
title: NOAA/WDS Paleoclimatology - Lachniet et al. 2004 Venado Cave, Costa Rica Speleothem Stable Isotope Data

description: A delta 18O monsoon rainfall proxy record from a U-Th-dated Costa Rican stalagmite (8840-4920 yr B.P.) documents an early Holocene dry period correlative with the high-latitude 8200 yr B.P. cold event. High delta 18O values between ca. 8300 and 8000 yr B.P. demonstrate reduced rainfall and a weaker monsoon in Central America. A relatively wetter and more stable monsoon was established at ca. 7600 yr B.P. The early Holocene dry event suggests a tropical-extratropical teleconnection to the 8200 yr B.P. cold event and a possible association of isthmian rainfall anomalies with high-latitude climate changes. The likely source of such a tropical anomaly is a decrease in Atlantic thermohaline circulation and atmospheric perturbations associated with drainage of proglacial lakes and freshwater discharge into the North Atlantic. A weaker monsoon at 8200 yr B.P. may be linked to wetland contraction and a decrease in methane observed in Greenland ice cores.
description: Stable oxygen and carbon isotopes from a U-Th-dated stalagmite from Venado Cave, Costa Rica, 10.6N, 84.8W, 380m. elevation.
DOI: 10.25921/1c9j-9x96
title: NOAA/WDS Paleoclimatology - Oerlemans 2005 Global Glacier Length Temperature Reconstruction

description: I constructed a temperature history for different parts of the world from 169 glacier length records. Using a first-order theory of glacier dynamics, I related changes in glacier length to changes in temperature. The derived temperature histories are fully independent of proxy and instrumental data used in earlier reconstructions. Moderate global warming started in the middle of the 19th century. The reconstructed warming in the first half of the 20th century is 0.5 kelvin. This warming was notably coherent over the globe. The warming signals from glaciers at low and high elevations appear to be very similar.
description: Global temperature reconstruction based on glacier length records from 169 locations.
DOI: 10.25921/1qra-x850
title: NOAA/WDS Paleoclimatology - Luterbacher et al. 2002 Sea Level Pressure Reconstructions, N. Atlantic/Europe

description: Spatially and temporally high-resolution estimates of past natural climate variability are important to assess recent significant climate trends. The mid-latitude atmospheric circulation is the dominant factor for regional changes in temperature, rainfall, and other climatic variables. Here we present reconstructions of gridded monthly sea level pressure (SLP) fields back to 1659 and seasonal reconstructions from 1500-1658 for the eastern North Atlantic-European region (30°W to 40°E; 30°N to 70°N). These were developed using principal component regression analysis based on the combination of early instrumental station series (pressure, temperature and precipitation) and documentary proxy data from Eurasian sites. The relationships were derived over the 1901-1960 calibration period and verified over 1961-1990. Under the assumption of stationarity in the statistical relationships, a transfer function derived over the 1901-1990 period was used to reconstruct the 500-year large-scale SLP fields. Systematic quality testing indicated reliable winter reconstructions throughout the entire period. Lower skill was obtained for the other seasons, although meaningful monthly reconstructions were available from around 1700 onwards, when station pressure series became available. The quality and the reconstructed SLP fields for two exceptionally cold years (1573, 1740) are discussed and climatologically interpreted. An EOF analysis of the 1500-1999 winter SLP revealed, firstly, a zonal flow pattern with pronounced decadal to centenial time scale variations, secondly, a monopole pattern over northwest Europe and thirdly, a pattern modulating the meridional flow component over Europe. These 500-year SLP reconstructions should be useful for modelling studies, particularly for analyses of low-frequency atmospheric variability and for circulation dynamics.
DOI: 10.15468/dl.5m22u2
title: Occurrence Download

description: A dataset containing 55 records in GBIF matching the query:
SELECT "year", COUNT(*) as RecordsCount 
 FROM occurrence
 WHERE "year" &gt;= 1970 
 AND level0gid = 'GMB'
 AND countrycode = 'GM'
 AND (kingdom = 'Plantae' OR kingdom = 'Animalia') 
 AND (basisOfRecord = 'OBSERVATION' OR basisOfRecord = 'LIVING_SPECIMEN' OR basisOfRecord = 'MATERIAL_SAMPLE' OR basisOfRecord = 'HUMAN_OBSERVATION' OR basisOfRecord = 'MACHINE_OBSERVATION' OR basisOfRecord = 'OCCURRENCE')
 AND occurrenceStatus = 'PRESENT' 
 AND decimalLongitude IS NOT NULL 
 AND decimalLatitude IS NOT NULL
 AND NOT ARRAY_CONTAINS(issue, 'COORDINATE_INVALID') 
 AND NOT ARRAY_CONTAINS(issue, 'ZERO_COORDINATE') 
 AND NOT ARRAY_CONTAINS(issue, 'COORDINATE_OUT_OF_RANGE') 
 AND NOT ARRAY_CONTAINS(issue, 'COUNTRY_COORDINATE_MISMATCH') 
 GROUP BY "year"
 ORDER BY "year"

 The dataset's 55 records were derived from 28 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024870-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25921/12dz-mm73
title: NOAA/WDS Paleoclimatology - Meko 2001 Feather River Annual Flow Reconstruction

description: Records of past temperature, precipitation, and other climate variables derived from paleoclimate proxies.  Parameter keywords describe what was measured in this data set.  Additional summary information can be found in the abstracts of papers listed in the data set citations.
description: Meko 2001 Feather River Annual Flow Reconstruction. Reconstruction of total annual (water year) flow, in millions of acre-feet. The gage record reconstructed is Feather River inflow to Lake Oroville.
DOI: 10.25921/158t-bh74
title: NOAA/WDS Paleoclimatology - Fedchenko Glacier, Tajikistan Trace Element Data

description: In summer 2005, two pilot snow/firn cores were obtained at 5365 and 5206 m a.s.l. on Fedchenko glacier, Pamirs, Tajikistan, the world's longest and deepest alpine glacier. The well-defined seasonal layering appearing in stable-isotope and trace element distribution identified the physical links controlling the climate and aerosol concentration signals. Air temperature and humidity/precipitation were the primary determinants of stable-isotope ratios. Most precipitation over the Pamirs originated in the Atlantic. In summer, water vapor was re-evaporated from semi-arid regions in central Eurasia. The semi-arid regions contribute to non-soluble aerosol loading in snow accumulated on Fedchenko glacier. In the Pamir core, concentrations of rare earth elements, major and other elements were less than those in the Tien Shan but greater than those in Antarctica, Greenland, the Alps and the Altai. The content of heavy metals in the Fedchenko cores is 2-14 times lower than in the Altai glaciers. Loess from Afghan-Tajik deposits is the predominant lithogenic material transported to the Pamirs. Trace elements generally showed that aerosol concentration tended to increase on the windward slopes during dust storms but tended to decrease with altitude under clear conditions. The trace element profile documented one of the most severe droughts in the 20th century.
description: High-resolution Major and Trace Element data from two shallow 2005 
Fedchenko Glacier ice cores from upper accumulation zone of the Pamir.
DOI: 10.25921/1dst-hz36
title: NOAA/WDS Paleoclimatology - Mundo - Pino Hachado - ARAR - ITRDB ARGE115

description: Seventeen tree-ring chronologies from the conifer Araucaria araucana (Molina) K. Koch have been analyzed across its range of distribution in Argentina. We studied the growth patterns and determined the main climatic factors influencing A. araucana radial growth. All the chronologies show a strong common signal observed by the high amount of variance explained by the first principal component (PC1) and the high mean correlation (r = 0.597) between the chronologies over the 1676-1974 interval. On this basis, we developed a regional chronology that is 866 years long (A.D. 1140-2006) and includes 621 tree-ring series. Based on the PC2 scores, chronologies were clearly separated by elevation in high- and low-elevation records. Regional tree growth is strongly negatively related to temperatures during summer and fall in the previous-growing season and spring in the current-growing season, respectively. A positive association of tree growth with precipitation is recorded during spring in the current growing season. These results suggest a close relationship between A. araucana tree growth and water availability on a regional scale. This observation is also consistent with a positive and significant correlation between our A. araucana regional record and a reconstruction of November-December rainfall for northern Patagonia inferred from the xeric Austrocedrus chilensis during the past 400 years. Negative correlations between A. araucana regional growth and the sea surface temperature in the Nino 3.4 region reflect the occurrence of above-mean summer temperatures in the region during positive tropical Pacific SST anomalies. The negative relationship with the Antarctic Oscillation (AAO) results from reduced precipitation in our study region during the positive phase of the AAO. The effect of elevation on water availability is consistent with significant correlations between ring-width variations at lower elevations and the Palmer Drought Severity Index during spring and summer in the current growing season. Our study emphasizes the high dendroclimatological potential of A. araucana chronologies for reconstructing past climate variations in northern Patagonia during the past millennium.
description: NOAA Template Chronology file added 2018-12-13. NOAA Template Raw Measurements file added 2019-04-29.
DOI: 10.25921/1h5c-2a36
title: NOAA/WDS Paleoclimatology - Rarotonga - Subseasonal Coral d18O and Sr/Ca Data

description: The South Pacific Convergence Zone (SPCZ) is the largest and most persistent spur of the Intertropical Convergence Zone. At the southeastern edge of the SPCZ near 170°W and 15°–20°S a surface ocean salinity frontal zone exists that separates fresher Western Pacific Warm Pool water from saltier and cooler waters in the east. This salinity front is known to shift east and west with the phase of the El Niño Southern Oscillation. We have generated subannually resolved and replicated coral oxygen isotopic time series from Fiji (17°S, 179°E) and Rarotonga (21.5°S, 160°W) that have recorded interannual displacements of the salinity front over the last 380 years and also indicate that at lower frequencies the decadal mean position of the salinity front, and eastern extent of the SPCZ, has shifted east-west through 10° to 20° of longitude three times during this interval. The most recent and largest shift began in the mid 1800s as the salinity front progressively moved eastward and salinity decreased at both sites. Our results suggest that sea surface salinity at these sites is now at the lowest levels recorded and is evidence for an unprecedented expansion of the SPCZ since the mid 1800s. The expansion of the SPCZ implies a gradual change in the South Pacific to more La Niña-like long-term mean conditions. This observation is consistent with the ocean thermostat mechanism for the Pacific coupled ocean-atmosphere system, whereby exogenous heating of the atmosphere would result in greater warming in the western Pacific and a greater east-west surface temperature gradient.
description: Subannual stable isotope and Sr/Ca data for coral cores from Rarotonga, Cook Islands, 21º14'16"S, 159º49'40"E. Core 2R: (1726-1997AD) (w.d.= 18.3m) Core 3R: (1874-2000AD) (w.d.= 10m) Core 99: (1906-1999AD) (collected by A. Tudhope, w.d.= 18m). Detailed locations of the cores and sampling methods are discussed in Linsley et al., 2004.
DOI: 10.25921/1n4x-me72
title: NOAA/WDS Paleoclimatology - Wang et al. 2004 NE Brazil Speleothem/Travertine Growth Phases

description: The tropics are the main source of the atmosphere's sensible and latent heat, and water vapour, and are therefore important for reconstructions of past climate. But long, accurately dated records of southern tropical palaeoclimate, which would allow the establishment of climatic connections to distant regions, have not been available. Here we present a 210,000-year (210-kyr) record of wet periods in tropical northeastern Brazil - a region that is currently semi-arid. The record is obtained from speleothems and travertine deposits that are accurately dated using the U/Th method. We find wet periods that are synchronous with periods of weak East Asian summer monsoons, cold periods in Greenland, Heinrich events in the North Atlantic and periods of decreased river runoff to the Cariaco basin. We infer that the wet periods may be explained with a southward displacement of the Intertropical Convergence Zone. This widespread synchroneity of climate anomalies suggests a relatively rapid global reorganization of the ocean-atmosphere system.  We conclude that the wet periods probably affected rainforest distribution, as plant fossils show that forest expansion occurred during these intermittent wet intervals, and opened a forest corridor between the Amazonian and Atlantic rainforests.
DOI: 10.25921/1dhd-pt81
title: NOAA/WDS Paleoclimatology - California Current Reconstruction from Benthic Isotopes and Alkenone Temperatures

description: Time series of alkenone unsaturation indices gathered along the California margin reveal large (4° to 8°C) glacial-interglacial changes in sea surface temperature (SST) over the past 550,000 years. Interglacial times with SSTs equal to or exceeding that of the Holocene contain peak abundances in the pollen of redwood, the distinctive component of the temperate rainforest of the northwest coast of California. In the region now dominated by the California Current, SSTs warmed 10,000 to 15,000 years in advance of deglaciation at each of the past five glacial maxima. SSTs did not rise in advance of deglaciation south of the modern California Current front. Glacial warming along the California margin therefore is a regional signal of the weakening of the California Current during times when large ice sheets reorganized wind systems over the North Pacific. Both the timing and magnitude of the SST estimates suggest that the Devils Hole (Nevada) calcite record represents regional but not global paleotemperatures, and hence does not pose a fundamental challenge to the orbital ("Milankovitch") theory of the Ice Ages.
DOI: 10.25921/1365-se32
title: NOAA/WDS Paleoclimatology - Dean et al. 2004 Gulf of California Box Core Geochemical Data

description: Sediments deposited on the slopes of the Guaymas and Carmen Basins in the central Gulf of California were recovered in two box cores. Q-mode factor analyses identified detrital-clastic, carbonate, and redox associations in the elemental composition of these sediments. The detrital-clastic fraction appears to contain two source components, a more mafic component presumably derived from the Sierra Madre Occidental along the west coast of Mexico, and a more felsic component most likely derived from sedimentary rocks (mostly sandstones) of the Colorado Plateau and delivered by the Colorado River. The sediments also contain significant siliceous biogenic components and minor calcareous biogenic components, but those components were not quantified in this study. Redox associations were identified in both cores based on relatively high concentrations of molybdenum, which is indicative of deposition under conditions of sulfate reduction. Decreases in concentrations of molybdenum in younger sediments suggest that the bottom waters of the Gulf have became more oxygenated over the last 100 years. Many geochemical components in both box cores exhibit distinct cyclicity with periodicities of 10-20 years. The most striking are 20-year cycles in the more mafic components (e.g., titanium), particularly in sediments deposited during the 19th century. In that century, the titanium cycles are in very good agreement with warm phases of the Pacific Decadal Oscillation, implying that at times of greater influx of titanium-rich volcanic debris, there were more El Niños and higher winter precipitation. The cycles are interpreted as due to greater and lesser riverine influx of volcanic rock debris from the Sierra Madre. There is also spectral evidence for periodicities of 4-8 and 8-16 years, suggesting that the delivery of detrital-clastic material is responding to some multiannual (ENSO?) forcing.
DOI: 10.25582/data.2024-04.3094304/2559961
title: Data for EMSL Project 51287 from April 2024
DOI: 10.25582/data.2024-04.3094305/2559962
title: Data for EMSL Project 51287 from April 2024
DOI: 10.25582/data.2024-04.3094307/2559963
title: Data for EMSL Project 51287 from April 2024
DOI: 10.25582/data.2024-04.3094308/2559964
title: Data for EMSL Project 51287 from April 2024
DOI: 10.25582/data.2024-04.3094309/2559965
title: Data for EMSL Project 51287 from April 2024
DOI: 10.25582/data.2024-04.3094316/2559966
title: Data for EMSL Project 51287 from April 2024
DOI: 10.25582/data.2024-04.3094317/2559967
title: Data for EMSL Project 51287 from April 2024
DOI: 10.25582/data.2024-04.3094321/2559968
title: Data for EMSL Project 51287 from April 2024
DOI: 10.25582/data.2024-04.3094325/2559969
title: Data for EMSL Project 51287 from April 2024
DOI: 10.25582/data.2024-04.3094328/2559970
title: Data for EMSL Project 51287 from April 2024
DOI: 10.5281/zenodo.13737789
title: Data set from ambient vibration monitoring and static loading of a steel stringer bridge subject to imposed damage

description: This data set contains structural response measurements acquired from the Route 345 Bridge over Big Sucker Brook in Waddington, NY prior to demolition and replacement.  This steel stringer bridge was instrumented with dual-axis accelerometers and strain transducers and response measurements were obtained prior to and following mechanically imposed damages.  Accelerometer measurements were obtained under vehicle passes and strain measurements were acquired during static loading of the span with a truck positioned at three prescribed locations.  All measurement data is contained in a single h5-file (hierarchical data format version 5).  The data is shared with the intent of promoting the advancement of structural health monitoring and vibration-based damage detection. 

Version 2 Note: This version corrects the strain measurement data.  Due to an index counter error in the script that compiled the strain measurement data into the h5-file, the strain measurement data in the Version 1 data were incorrectly sourced from a single scenario.  The strain measurements are corrected in this new version.  No other changes were made in the h5-file.
DOI: 10.5281/zenodo.15497673
title: Data set from ambient vibration monitoring and static loading of a steel stringer bridge subject to imposed damage

description: This data set contains structural response measurements acquired from the Route 345 Bridge over Big Sucker Brook in Waddington, NY prior to demolition and replacement.  This steel stringer bridge was instrumented with dual-axis accelerometers and strain transducers and response measurements were obtained prior to and following mechanically imposed damages.  Accelerometer measurements were obtained under vehicle passes and strain measurements were acquired during static loading of the span with a truck positioned at three prescribed locations.  All measurement data is contained in a single h5-file (hierarchical data format version 5).  The data is shared with the intent of promoting the advancement of structural health monitoring and vibration-based damage detection. 

Version 2 Note: This version corrects the strain measurement data.  Due to an index counter error in the script that compiled the strain measurement data into the h5-file, the strain measurement data in the Version 1 data were incorrectly sourced from a single scenario.  The strain measurements are corrected in this new version.  No other changes were made in the h5-file.
DOI: 10.15156/bio/sh1406039.10fu
title: SH1406039.10FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.