cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/v4s8-sg25
title: NOAA/WDS Paleoclimatology - Wintimdouine Cave, Morocco Holocene Speleothem Oxygen Isotope Data

description: We present new high-resolution oxygen isotope (d18O) records from three NW African speleothems located at ~31N. The present-day rainfall patterns at 31N in NW Africa are linked to negative winter North Atlantic Oscillation (NAO) phases. On multi-millennial timescales, our d18O records, together with other hydroclimate records, provide new evidence of humid conditions during the mid-Holocene, a period that was presumably characterized by arid climate due to positive NAO states. Thus, the apparent increase in moisture during the mid-Holocene is interpreted better as an increase in summer rainfall. This is most likely linked to the expansion of the West African summer monsoon (WASM) fringe during the African Humid Period (AHP), which terminated in our record abruptly around 4 kyr BP. The temporospatial difference with speleothem records from N Morocco suggests that the High-Atlas Mountains might have been a topographic barrier to further expansion of the WASM fringe into higher latitudes.
description: Oxygen isotope (d18O) data from 3 speleothems collected in Wintimdouine Cave, Morocco for the past 11,500 years. Hiatuses: Sample WIN2 between 178 and 179 mm; Sample WIN3 between 17.2 and 17.4 mm; Composite between 3295 and 3806 year BP. Provided Keywords: West African Summer Monsoon, African Humid Period, Speleothems, Abrupt Climate change
DOI: 10.25921/vaha-4z65
title: NOAA/WDS Paleoclimatology - Gut - Spiringen-Waengiwald - PCAB - ITRDB SWIT382

description: The pairwise statistical comparison of ring-width series is the basic analysis of dendro-provenancing studies. It is assumed that statistical proximity indicates similar provenance, but this assumption often remains untested. Especially for small areas with high topographic complexity, it is unknown to what extent statistical proximity and geographical provenance are correlated.

In this paper, dendro-provenancing is framed as a search for statistical Nearest Neighbors. The 'k-Nearest Neighbors leave one-out cross-validation' process (k-NN) is proposed as a method for validating dendro-provenancing approaches. Furthermore, it allows researchers to consistently compare and evaluate different proximity measures with respect to their suitability for dendro-provenancing. The validation process is demonstrated on a data set of 401 ring-width series of Norway spruce (Picea abies (L.) H. Karst.) encompassing 15 sites along elevational gradients in north-eastern Switzerland. Moreover, a new type of plot, the so-called scissor plot, is introduced to visualize the k-NN validation process.

Results indicate that dendro-provenancing depends heavily on differences in between sites high-frequency signal. Mean classification success for the relevant stages of the k-NN (CSRopen) ranged from 71.8% to 79.2% for the best performing measures. Classification errors occurred mainly between sites at elevations of 1000-1198 m a.s.l. At all other elevations and between different regions of the study area, only moderate differences in classification performance were detected. Thus, the results indicate that dendro-provenancing may be principally feasible even in a small region as studied here.
description: dendro-provenance study NOAA Template Raw Measurements file added 2020-03-09.
DOI: 10.25921/vqsh-t602
title: NOAA/WDS Paleoclimatology - Paleo-pCO2 Database Cenozoic Stomata CO2 Data

description: A unique stratigraphic sequence of fossil leaves of Eotrigonobalanus furcinervis (extinct trees of the beech family, Fagaceae) from central Germany has been used to derive an atmospheric pCO2 record with multiple data points spanning the late middle to late Eocene, two sampling levels which may be earliest Oligocene, and two samples from later in the Oligocene. Using the inverse relationship between the density of stomata and pCO2, we show that pCO2 decreased continuously from the late middle to late Eocene, reaching a relatively stable low value before the end of the Eocene. Based on the subsequent records, pCO2 in parts of the Oligocene was similar to latest Eocene values. These results suggest that a decrease in pCO2 preceded the large shift in marine oxygen isotope records that characterizes the Eocene-Oligocene transition and that when a certain threshold of pCO2 change was crossed, the cumulative effects of this and other factors resulted in rapid temperature decline, ice build up on Antarctica and hence a change of climate mode.
description: Paleo-CO2 derived from fossil plant stomata, contributed to the Paleo-pCO2 Database.
DOI: 10.25921/vegk-2t46
title: NOAA/WDS Paleoclimatology - Upper Missouri River Basin 200 Year Bayesian Streamflow Reconstructions

description: A Bayesian model that uses the spatial dependence induced by the river network topology, and the leading principal components of regional tree ring chronologies for paleo-streamflow reconstruction is presented. In any river basin, a convergent, dendritic network of tributaries come together to form the main stem of a river. Consequently, it is natural to think of a spatial Markov process that recognizes this topological structure to develop a spatially consistent basin-scale streamflow reconstruction model that uses the information in streamflow and tree ring chronology data to inform the reconstructed flows, while maintaining the space-time correlation structure of flows that is critical for water resource assessments and management. Given historical data from multiple streamflow gauges along a river, their tributaries in a watershed, and regional tree ring chronologies, the model is fit and used to simultaneously reconstruct the full network of paleo-streamflow at all gauges in the basin progressing upstream to downstream along the river. Our application to 18 streamflow gauges in the Upper Missouri River Basin shows that the mean adjusted R2 for the basin is approximately 0.5 with good overall cross-validated skill as measured by five different skill metrics. The spatial network structure produced a substantial reduction in the uncertainty associated with paleo-streamflow as one proceeds downstream in the network aggregating information from upstream gauges and tree ring chronologies. Uncertainty was reduced by more than 50% at six gauges, between 6% and 50% at one gauge, and by less than 5% at the remaining 11 gauges when compared with the traditional principal component regression reconstruction model.
description: Tree ring streamflow reconstructions for 18 gage stations in the upper Missouri River Basin for the past 200 years, using a Bayesian reconstruction method
DOI: 10.25921/vfce-ap60
title: NOAA/WDS Paleoclimatology - Groves - 107 Jermyn Street - QUSP - ITRDB BRIT084

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 2020-03-09. 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: 10.25921/vnd9-mm56
title: NOAA/WDS Paleoclimatology - Sniderhan - Inuvik - PCMA - ITRDB CANA612

description: Northwestern Canada's boreal forest has experienced rapid warming, drying, and changes to permafrost, yet the growth responses and mechanisms driving productivity have been understudied at broad scales. Forest responses are largely driven by black spruce - the region's most widespread and dominant tree. We collected tree-ring samples from four black spruce-dominated sites across 15 degrees of latitude, spanning gradients in climate and permafrost. We investigated (1) differences in growth patterns, (2) variations in climatic drivers of growth, and (3) trends in water use efficiency (WUE) through 13C isotope analysis from 1945 - 2006. We found positive growth trends at all sites except mid-latitude, where rapid permafrost thaw drove declines. Annual growth was lowest at the tree limit site and highest at the treeline. Climatic drivers of these growth patterns varied; positive growth responses at the northerly sites were associated with warmer winters, whereas d13C trends and climate-growth responses at mid-latitude sites indicated growth was limited by moisture availability. d13C signatures indicated increased WUE at the southernmost site, with no significant trends at northern sites. These results suggest that warming will increase growth of trees at black spruce's northern extent, but southerly areas may face drought stress if precipitation does not balance evapotranspiration.
description: Tree ring sampled; In four stands, cores were taken from the nearest black spruce (with DBH greater than ~5 cm to ensure a non-destructive core sample) every 10 m along three parallel 90 meter transects, spaced 25 m apart ? a total of 10 trees per transect. Where there were not trees present within a 5 m radius of a sampling point, the transect was extended by an additional 10 m until 10 trees were sampled. Subset of trees used in delta 13C analysis. NOAA Template Raw Measurements file added 2020-11-18.
DOI: 10.25921/vkd1-py02
title: NOAA/WDS Paleoclimatology - Esper - Stockholm Dry - PISY - ITRDB SWED345

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 2021-10-19.
DOI: 10.22008/fk2/iw73uu/xgtdoi
title: QAS_M_month.nc

description: Uploaded with pyDataverse 2025-06-01 14:00
DOI: 10.22008/fk2/iw73uu/9w3ofl
title: QAS_M_day.nc

description: Uploaded with pyDataverse 2025-06-01 14:01
DOI: 10.22008/fk2/iw73uu/h7njk8
title: QAS_M_hour.nc

description: Uploaded with pyDataverse 2025-06-01 14:01
DOI: 10.22008/fk2/iw73uu/6x0bfq
title: KAN_B_day.nc

description: Uploaded with pyDataverse 2025-06-01 14:02
DOI: 10.22008/fk2/iw73uu/jqpqy9
title: QAS_M_day.csv

description: Uploaded with pyDataverse 2025-06-01 14:01
DOI: 10.22008/fk2/iw73uu/xwr0e9
title: KAN_B_month.nc

description: Uploaded with pyDataverse 2025-06-01 14:02
DOI: 10.22008/fk2/iw73uu/ambso2
title: KAN_B_month.csv

description: Uploaded with pyDataverse 2025-06-01 14:02
DOI: 10.22008/fk2/iw73uu/bswqyw
title: KAN_B_hour.csv

description: Uploaded with pyDataverse 2025-06-01 14:02
DOI: 10.22008/fk2/iw73uu/ebe8rk
title: KAN_B_day.csv

description: Uploaded with pyDataverse 2025-06-01 14:03
DOI: 10.22008/fk2/iw73uu/z7hry2
title: KAN_B_hour.nc

description: Uploaded with pyDataverse 2025-06-01 14:03
DOI: 10.22008/fk2/iw73uu/eoi5eh
title: QAS_L_hour.nc

description: Uploaded with pyDataverse 2025-06-01 14:03
DOI: 10.22008/fk2/iw73uu/v2w0ri
title: QAS_L_day.csv

description: Uploaded with pyDataverse 2025-06-01 14:03
DOI: 10.22008/fk2/iw73uu/dcwhma
title: QAS_L_day.nc

description: Uploaded with pyDataverse 2025-06-01 14:04
DOI: 10.22008/fk2/iw73uu/13z4mi
title: QAS_L_month.nc

description: Uploaded with pyDataverse 2025-06-01 14:04
DOI: 10.22008/fk2/iw73uu/hi6tvn
title: QAS_L_month.csv

description: Uploaded with pyDataverse 2025-06-01 14:04
DOI: 10.22008/fk2/iw73uu/l6wvfw
title: QAS_L_hour.csv

description: Uploaded with pyDataverse 2025-06-01 14:05
DOI: 10.22008/fk2/iw73uu/ilduai
title: KPC_U_month.nc

description: Uploaded with pyDataverse 2025-06-01 14:05
DOI: 10.22008/fk2/iw73uu/dfcuim
title: KPC_U_day.nc

description: Uploaded with pyDataverse 2025-06-01 14:05
DOI: 10.22008/fk2/iw73uu/hasheu
title: KPC_U_hour.csv

description: Uploaded with pyDataverse 2025-06-01 14:06
DOI: 10.15468/dl.zd8cbt
title: Occurrence Download

description: A dataset containing 205628260 species occurrences available in GBIF matching the query:
{
 "Country" : [
 "is United Kingdom of Great Britain and Northern Ireland"
 ]
}

 The dataset includes 205628260 records from 3790 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024936-260208012135463/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15156/bio/sh1403418.10fu
title: SH1403418.10FU

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.
DOI: 10.15156/bio/sh1403419.10fu
title: SH1403419.10FU

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.
DOI: 10.15156/bio/sh1403420.10fu
title: SH1403420.10FU

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.
DOI: 10.15156/bio/sh1403422.10fu
title: SH1403422.10FU

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.
DOI: 10.15156/bio/sh1403423.10fu
title: SH1403423.10FU

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.
DOI: 10.15156/bio/sh1403424.10fu
title: SH1403424.10FU

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.
DOI: 10.15156/bio/sh1403426.10fu
title: SH1403426.10FU

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.
DOI: 10.15156/bio/sh1403427.10fu
title: SH1403427.10FU

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.
DOI: 10.15468/dl.fv8beu
title: Occurrence Download

description: A dataset containing 383 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Conocephalus bilineatus",
 "Country is New Zealand",
 "HasCoordinate is true"
 ]
}

 The dataset includes 383 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009864-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/wpacards-ouc11549153
title: WPA household census for 6618D AJAX AVE, Los Angeles County

description: The Works Progress Administration Los Angeles Household Census Cards collection dates from 1939. The physical cards which number nearly half a million items are owned by the USC Libraries. More than a quarter of the collection has been digitized.The household survey cards (or "dwelling schedules"), one for each street address in greater Los Angeles, document a wide variety of information ranging from the type of dwelling, the value of the property, the monthly rent or mortgage, to whether or not there were flush toilets. While these cards form the bulk of the collection, other digitized documents include "block face cards" and "block lists" -- documenting the census process.
DOI: 10.18710/ufxavm/tihxuo
title: 00_ReadMe.txt
DOI: 10.18710/ufxavm/xlchuq
title: DataFile.pdf