cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/n5ac-qc75
title: NOAA/WDS Paleoclimatology - Soylegrotta Cave Geochemical Data from 10400 to 130 Cal Yr BP

description: The speleothem delta function (SDF) provides a new transfer function between the d18O signal of speleothem calcite and surface ground temperature. The function is based on physical principles, relating d18O of the calcite to thermodynamic fractionation, and to the dripwater function, which in turn relates d18O of dripwaters to that of the local precipitation and thus to the modification of source water in relationship to the geographical position of the site. The SDF must be calibrated against at least two reliable and well-dated palaeotemperature points. The end product is a reconstruction of absolute cave and surface temperatures. The technique is tested using a Holocene speleothem from north Norway, SG93, dated by 12 TIMS U-Th dates. The reconstructed temperature curve is presented and compared with the GISP2 ice-core record and with the historic record. In both cases the correlation with SG93 is impressive, indicating the validity of the technique.
description: Data contributed as part of SISAL v3 Global Speleothem Isotope and Trace Element Database (https://doi.org/10.25921/jajq-qg60). Notes from the SISAL database: Geology: Steeply dipping band of calcite marble, between rocks of ferruginious mica schist. Vegetation: Blanket bog with sparse stunted tree growth.\\ Entity SG93 (SISAL entity_id = 435): Modern_reference assumed to be BP(1950). All depths have been shifted by 5mm not to have negative values.
DOI: 10.25921/natm-k652
title: NOAA/WDS Paleoclimatology - Esper - Setermoen ENT02 - PISY - ITRDB NOR037

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
DOI: 10.15468/dl.bj4mfq
title: Occurrence Download

description: A dataset containing 2424 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Curcuma longa"
 ]
}

 The dataset includes 2424 records from 225 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021193-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25921/nncr-tq55
title: NOAA/WDS Paleoclimatology - Esper - Seskarö East KSS02 - PCAB - ITRDB SWE362

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: Comparison Picea vs Pinus, East
DOI: 10.25921/nz5a-fy84
title: NOAA/WDS Paleoclimatology - Pederson et al 2001 Hydrometeorological Reconstructions in Mongolia

description: Reconstructions of annual (prior August–current July) precipitation and streamflow, 345 yr in length (1651–1995), are presented for northeastern Mongolia based on tree-ring width data. These precipitation and streamflow reconstructions account for 54% and 48% of the respective variance in instrumental data over the past 50 years. Variations in instrumental precipitation and streamflow are within the range of those reconstructed over the length of tree-ring records. However, there appear to be more frequent extended wet periods during the twentieth century. Multitaper spectral analysis revealed statistically significant peaks at 10.8 and 12.8 yr for the precipitation reconstruction, and at 12.8 and 20.3–23.8 yr for the streamflow reconstruction. Similarly, singular spectrum analysis identified spectral modes of variation at 12 and 21 yr for both series. These spectra resemble those found for tree-ring-based precipitation reconstructions in central China as well as the western United States, and may reflect solar influences on the climate of Mongolia.
description: Reconstructions of annual (prior August-current July) precipitation and streamflow, 345 years in length (AD 1651-1995), are presented for northeastern Mongolia based on tree-ring width data. These precipitation and streamflow reconstructions account for 54% and 48% of the respective variance in instrumental data over the past 50 years. Variations in instrumental precipitation and streamflow are within the range of those reconstructed over the length of tree-ring record. However, there appear to be more frequent extended wet periods during the 20th century. Multitaper spectral analysis revealed statistically significant peaks at 10.8 and 12.8 years for the precipitation reconstruction, and at 12.8 and 20.3-23.8 years for the streamflow reconstruction. Similarly, singular spectrum analysis identified spectral modes of variation at 12 and 21 years for both series. These spectra resemble those found for tree-ring based precipitation reconstructions in central China as well as the western USA, and may reflect solar influences on the climate of Mongolia. International Tree Ring Data Bank sites used: MONG005 (https://doi.org/10.25921/480c-rg47) and MONG006 (https://doi.org/10.25921/cgyz-pv10).
DOI: 10.25921/n1t0-4w75
title: NOAA/WDS Paleoclimatology - Kipfmueller fire data from Coleman Island E-1 - IMPD USCE1001

description: Records of past fire occurrence from tree rings, charcoal found in lake sediments, and other 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.  Additional information on the International Multiproxy Database (IMPD) data set procedures are also available.

description: 
This dataset was contributed as part of the North American Tree-ring Fire Scar Synthesis (NAFSS) project (https://www.ncei.noaa.gov/access/paleo-search/study/34853). Data were contributed to the project from the original data generators.

Sample Storage Location: UW Platteville
Dating Method: Dated
Related ITRDB_Chronology: Not Applicable

Fire scar data from this site are available in FHX2 format at:
  https://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/usce1001.fhx
along with associated metadata at:
  https://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/usce1001-noaa.txt
DOI: 10.25921/nwcb-8w62
title: NOAA/WDS Paleoclimatology - European Alps 944 Year Multiproxy Summer Temperature Reconstructions

description: We present a multi-archive, multi-proxy summer temperature reconstruction for the European Alps covering the period AD 1053-1996 using tree-ring and lake sediment data. The new reconstruction is based on nine different calibration approaches and errors were estimated conservatively. Summertemperatures of the last millennium are characterised by two warm (AD 1053-1171 and 1823-1996) and two cold phases (AD 1172-1379 and 1573-1822). Highest pre-industrial summer temperatures of the 12th century were 0.3°C warmer than the 20th century mean but 0.35°C colder than proxy derived temperatures at the end of the 20th century. The lowest temperatures at the end of the 16th century were ~1°C lower than the 20th century mean.
description: Multiproxy summer temperature reconstructions for the European Alps covering AD 1053-1996, based on tree-ring and lake sediment data. Eight treering and lake sediment based proxies, from four different locations in the Greater Alpine Region, were utilized in the reconstructions. Nine different calibration approaches were used to reconstruct summer temperatures. The calibration period is 1760-1996, on JJA mean temperatures averaged over the region 43-49°N and 4-19°E, using gridded temperature data. Greater Alpine Region: ~43-49°N, ~4-19°E
DOI: 10.25921/nbw4-eh77
title: NOAA/WDS Paleoclimatology - Kipfmueller fire data from Big Moose Portage - IMPD USBMP001

description: Records of past fire occurrence from tree rings, charcoal found in lake sediments, and other 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.  Additional information on the International Multiproxy Database (IMPD) data set procedures are also available.

description: 
This dataset was contributed as part of the North American Tree-ring Fire Scar Synthesis (NAFSS) project (https://www.ncei.noaa.gov/access/paleo-search/study/34853). Data were contributed to the project from the original data generators.

Sample Storage Location: UW Platteville
Dating Method: Dated
Related ITRDB_Chronology: Not Applicable

Fire scar data from this site are available in FHX2 format at:
  https://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/usbmp001.fhx
along with associated metadata at:
  https://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/usbmp001-noaa.txt
DOI: 10.25921/n5he-jj09
title: NOAA/WDS Paleoclimatology - Meravelles Cave Geochemical Data from 18600 to 14700 Cal Yr BP

description: This study examines the first precisely dated and temporally highly resolved speleothem record from Iberia that reconstructs the Oldest Dryas (OD). The onset of cold conditions in the study area, contemporary with the beginning of Heinrich Stadial 1, is recorded at 18.13 ± 0.08 ka, with a pronounced drop of 6.1‰ in δ13C in 250 years. Henceforth, stadial conditions depict a period of instability in the Atlantic Meridional Overturning Circulation, peaking in freshwater input from iceberg melting during Heinrich Event 1. Anomalies in the δ18O of the stalagmite attributed to such a freshwater event are found from 16.17 to 15.89 ka. Such absolute dates given to the onset of the OD in Iberia and to the main iceberg discharges are reliable anchor points for non-absolute chronologies. Two periods are identified in the OD: OD-a (18.13–16.17 ka) is characterized by wet conditions and a faster growth rate, and OD-b (15.89–14.81 ka) exhibits relative dryness and a slower growth rate. The sudden release of fresh water is considered to be the reason for the disruption of rainfall patterns in eastern Iberia. The present study also highlights the existence of heterogeneous and complex hydrological conditions during the OD in Iberia when both Atlantic and Mediterranean realms are considered.
description: Data contributed as part of SISAL v3 Global Speleothem Isotope and Trace Element Database (https://doi.org/10.25921/jajq-qg60). Notes from the SISAL database: Vegetation: Shrubs and pine forests.
DOI: 10.5281/zenodo.17345145
title: Supplementary material - An Optimized Gradient Boosting Framework for IoT Intrusion Detection: A Comprehensive Evaluation on the CIC-IoT-2023 Dataset

description: This repository provides the complete supplementary material for the study “An Optimized Gradient Boosting Framework for IoT Intrusion Detection: A Comprehensive Evaluation on the CIC-IoT-2023 Dataset.”

It includes three preprocessed feature-selected datasets — Binary, Eight-Class, and Thirty-Four-Class — derived from the CICIoT2023 benchmark using stratified undersampling and LightGBM-based feature selection. These datasets contain only the discriminative features used in the experiments and are ready for direct model reproduction without further preprocessing.

Each classification level is accompanied by:





A comprehensive Excel results file (*_Classification_FullResults.xlsx) summarizing class distributions, feature importance, model performance reports, confusion matrices, inference latency, and overall accuracy/F1 summaries.




A reproducible experiment script (*_Classification_Experiment.py) that automates the entire workflow — including data loading, normalization, model training (XGBoost, LightGBM, CatBoost), and evaluation.



All resources are released under the Creative Commons Attribution 4.0 International License (CC BY 4.0).Original data were obtained from the CICIoT2023 dataset by the Canadian Institute for Cybersecurity (UNB).For full documentation and experiment notebooks, please visit the companion GitHub repository:🔗 GitHub Repo
DOI: 10.15468/dl.8dkjdm
title: Occurrence Download

description: A dataset containing 2003 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Zingiber officinale"
 ]
}

 The dataset includes 2003 records from 273 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021194-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25921/njyc-qy91
title: NOAA/WDS Paleoclimatology - Esper - Hanau, Main-Kinzig EDK01 - PISY - ITRDB DEU434

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
DOI: 10.25921/nav2-my41
title: NOAA/WDS Paleoclimatology - Cold Air Cave Geochemical Data from 4400 to 470 Cal Yr BP

description: Stable isotope analyses of a uranium-series-dated stalagmite from South Africa provide a record of climate changes for the periods 4400–4000 years and ∼800 years ago to recent, interrupted by a prolonged growth hiatus. Generally enriched stable oxygen isotope values, interpreted here to indicate more humid conditions, occurred around 800 years ago. Subsequently a marked depletion in oxygen and carbon isotope values occurred about 600 years ago, reflecting, we believe, shifts toward drier, cooler conditions as the regional indication of the Little Ice Age. This period with depleted, yet oscillating isotope values, is replaced by a period with enriched isotopes until recent times. The record is notable for sharp shifts in isotopic values, on the scale of decades, which reflect rapid oscillations in local climate conditions.
description: Data contributed as part of SISAL v3 Global Speleothem Isotope and Trace Element Database (https://doi.org/10.25921/jajq-qg60). Notes from the SISAL database: Vegetation: Mixed grassland and woodland, dominated by grasses using the C4 photosynthetic pathway. \\ Stable isotope record of T7_1999 (SISAL entity_id = 46) was published in Stevenson et al., 1999; the dating information was published in Holmgren et al., 1999. In the Dating Information of T7_1999 (entity_id = 46), all empty fields of the 230Th/232Th ratio had values above 1000. The content of initial thorium is considered minimal and no correction was needed. In the original data at entity T5 (entity_id = 45) at depth 244mm there were two delta values, these were averaged out. d18O: -2.31 & -2.48; d13C: -3.38 & -3.2. \\ Entity T8 (entity_id = 48): There is a hiatus in between sample_id = 17044 and 17045 (interp_age = 10110 and 12590, respectively); depth of hiatus was not provided.
DOI: 10.25921/nw5b-vn15
title: NOAA/WDS Paleoclimatology - Esper - Runkel, Westerwald EDW12 - PISY - ITRDB DEU463

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
DOI: 10.25921/npym-2p84
title: NOAA/WDS Paleoclimatology - Esper - Pitkäjärvi Lake HLP03 - PISY - ITRDB FIN104

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: wet S-Exp.
DOI: 10.25921/nngg-z186
title: NOAA/WDS Paleoclimatology - Nakarallu Cave Geochemical Data from 3200 to 1700 Cal Yr BP

description: This study presents an analysis of the Indian summer monsoon (ISM) rainfall variations for a 1460-year period (1720–3180, Before Present BP: 1950 AD), based on a long record of stable isotopic variations (δ18O) with high temporal resolution (~annual) obtained from a U-Th dated stalagmite from the Kadapa cave in peninsular India. This stalagmite proxy record captures variations associated with wet and dry monsoons on decadal to centennial time-scales, together with a general declining trend in the ISM during the 1460-year period. It is noted that the declining trend of the ISM follows the northern hemispheric summer insolation, which is known to influence the location and strength of the Inter tropical convergence zone (ICTZ). The stalagmite record also indicates an abrupt climate change, characterized by the decline of ISM around 2800 yr BP, as manifested in the enrichment of 18O values. Furthermore, the enriched 18O values around 2800 yr BP are corroborated by changes in the stalagmite growth rate, its trace elemental ratios (Sr/Ca, Ba/Ca and U/Ca) and crystallographic structure. In addition, the decline of ISM around 2800 yr BP coincides with a sudden rise in the atmospheric Δ14C, indicative of reduced solar activity. This period around 2800 yr BP is widely reported as the cold European climate associated with ice debris events in the North Atlantic (also known as the Iron Age Cold Epoch), which were reportedly forced by low solar activity. Syntheses of other available stalagmite records from the Indian region, during the common time-frame, show coherent variations with the Kadapa stalagmite and also the Dongge cave stalagmite (southern China), pointing to synchronous variations of the Indian and the East Asian monsoon systems.
description: Data contributed as part of SISAL v3 Global Speleothem Isotope and Trace Element Database (https://doi.org/10.25921/jajq-qg60). Notes from the SISAL database: NK-1305 (SISAL entity_id = 534): The USGS standard W-2 was used as the calibration standard for trace element measurements using the protocol of Eggins et al. (1997). XRD suggests mixture of aragonite and calcite of varying proportions.
DOI: 10.25921/nzz2-cp89
title: NOAA/WDS Paleoclimatology - Esper - Mount Smolikas EHS11 - PIHE - ITRDB GRC038

description: We present the longest high-elevation tree-ring width dataset in the Mediterranean reaching back to the 6th century CE. The network includes 101 living and 92 relict Pinus heldreichii Christ trees from four differently exposed sites in the 2100-2200 m a.s.l. elevation range of Mt. Smolikas in the Pindus Mountains in Greece. Though the sites were all sampled within a distance of <1 km, inter-site correlations are surprisingly low (r1550-2014 = 0.65-0.87), indicating site exposure might affect tree-ring formation. We here explore the consequence of exposure differences on the climate signals in an eastern Mediterranean treeline ecotone. Temporally stable growth/climate relationships reveal similar seasonal patterns among the four sites, but differences in signal strength. P. heldreichii growth at Mt. Smolikas is significantly controlled by temperature in April (r1951-2014 = 0.33-0.50) and precipitation in June-July (r1951-2014 = 0.23-0.42), which emphasizes the overall importance of an early growth onset and subsequent moisture conditions. The association between stem growth and April climate is strongest in the South-facing stand, supporting the significance of higher insolation rates at this thermally privileged site. Strongest summer precipitation signals are found in the NE-facing stand, where trees seem to benefit least from an early growth onset and where reduced meltwater supply may enhance the dependency on early summer precipitation. The significance of spring temperature on tree growth in all four sites constrains the emergence of a distinct summer precipitation signal in the Mt. Smolikas high elevation ecotone. Exploration of the site-specific influences on a new millennium-long tree-ring width dataset is an important step towards an improved understanding of long-term climate variability in the Eastern Mediterranean. Site-related differences in climate sensitivity in the high-elevation tree-ring network at Mt. Smolikas indicate that both temperature and precipitation during different seasons could potentially be reconstructed if distinct site exposures (S versus NE) are considered.
DOI: 10.25921/nkb9-gj47
title: NOAA/WDS Paleoclimatology - Esper - Valia Kalda EHV01 - PIHE - ITRDB GRC044

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
DOI: 10.25921/n9bs-hr43
title: NOAA/WDS Paleoclimatology - Esper - Valia Kalda EHV03 - PIHE - ITRDB GRC046

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