cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/xkdw-t487
title: NOAA/WDS Paleoclimatology - Torneträsk 1500 Year Tree Ring MXD and TRW Temperature Reconstructions

description: We describe the analysis of existing and new maximum-latewood-density (MXD) and tree-ring width (TRW) data from the Torneträsk region of northern Sweden and the construction of 1500 year chronologies. Some previous work found that MXD and TRW chronologies from Torneträsk were inconsistent over the most recent 200 years, even though they both reflect predominantly summer temperature influences on tree growth. We show that this was partly a result of systematic bias in MXD data measurements and partly a result of inhomogeneous sample selection from living trees (modern sample bias). We use refinements of the simple Regional Curve Standardisation (RCS) method of chronology construction to identify and mitigate these biases. The new MXD and TRW chronologies now present a largely consistent picture of long-timescale changes in past summer temperature in this region over their full length, indicating similar levels of summer warmth in the medieval period (MWP, c. ce 900-1100) and the latter half of the 20th century. Future work involving the updating of MXD chronologies using differently sourced measurements may require similar analysis and appropriate adjustment to that described here to make the data suitable for the production of un-biased RCS chronologies. The use of 'growth-rate' based multiple RCS curves is recommended to identify and mitigate the problem of 'modern sample bias'.
description: Summer (May to August) temperature reconstructions for Torneträsk in northern Sweden derived
using firstly MXD measurements from 130 pine trees (Pinus sylvestris-Scots Pine) for AD 441 to 2010 
and secondly TRW measurements from 650 pine trees for AD -39 to 2010. MXD data are derived from dry dead wood 
and living trees while the TRW data was also derived from subfossil lake material. The 10-year low pass 
chronologies are similar but the TRW has smaller error margins.
For further information see Melvin et al. (2012) paper. Metadata, supplementary data, computer programs and
code are all online at: http://www.cru.uea.ac.uk/cru/papers/melvin2012holocene/
DOI: 10.25921/x9ys-fv39
title: NOAA/WDS Paleoclimatology - Bräker - Habrichtswald ST - PCAB - ITRDB SWIT340

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: 
# Collection purpose: 
# Plentering
# 
# 
# 
# Cores are stored at: 
# disposed
# 
# 
# Notes: 
# Slope NE 30%
# Formerly Sigriswil2_Fichte_n42_1997.fh
# 
# 
# References:
# Bachofen, H.; Zingg, A., (2001): 
# Effectiveness of structure improvement thinning on stand structure 
# in subalpine Norway spruce (Picea abies (L.) Karst.) stands. 
# For. Ecol. Manage. 145: 137-149. NOAA Template Raw Measurements file added 2019-02-05.
DOI: 10.15468/dl.jwdqxu
title: Occurrence Download

description: A dataset containing 26 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Scaphopoda)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "Geometry POLYGON((160 -70,170 -70,170 -60,160 -60,160 -70))"
 ]
}

 The dataset includes 26 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024700-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25921/xans-wy24
title: NOAA/WDS Paleoclimatology - Aravena - Tumuch - PCEN - ITRDB CANA455

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 2019-02-04.
DOI: 10.25921/xh9p-7b63
title: NOAA/WDS Paleoclimatology - Esper - Atlas Mountains TO - CDAT - ITRDB MORC022

description: Cedrus atlantica ring width data are used to reconstruct long-term changes in the Palmer Drought Severity Index (PDSI) over the past 953 years in Morocco, NW Africa. The reconstruction captures the dry conditions since the 1980s well and places this extreme period within a millennium-long context. PDSI values were above average for most of the 1450-1980 period, which let recent drought appear exceptional. However, our results also indicate that this pluvial episode of the past millennium was preceded by generally drier conditions back to 1049. Comparison of PDSI estimates with large-scale pressure field reconstructions revealed steady synoptic patterns for drought conditions over the past 350 years. The long-term changes from initially dry to pluvial to recent dry conditions are similar to PDSI trends reported from N America, and we suggest that they are related to long-term temperature changes, potentially teleconnected with ENSO variability and forced by solar irradiance changes.

description: Collection purpose: 
# dendrclimatology
# 
# Cores are stored at: 
# WSL
# 
# Notes: 
# Formerly  TOU NOAA Template Raw Measurements file added 2019-05-01.
DOI: 10.25921/x3w1-q136
title: NOAA/WDS Paleoclimatology - Fischer - Nordrhein-Westfalen/Siebengebirge drb06 - QUPE - ITRDB GERM165

description: An improved understanding of the spatiotemporal climate/growth relationship of our forests is of particular importance for assessing the consequences of climate warming. A total of 67 stands of beech (Fagus sylvatica L.), pedunculate oak (Quercus robur L.), sessile oak (Quercus petraea (Matt.) Liebl.), Scots pine (Pinus sylvestris L.), and spruce (Picea abies Karst.) from sites located in the transition zone from the lowlands to the low mountain ranges of West Germany have been analysed. A combination of pointer year and cluster analysis was used to find groups with similar growth anomaly patterns over the 1941-2000 period. Shifted reaction patterns especially characterise differences in the growth behaviour of the clusters. These are controlled by different reactions to the climate conditions in winter and spring and are determined by a complex system of forcing factors. Results of this study reflect the enormous importance of the length of the growing season. Increasing the duration of the vegetation period climate warming can change the climate/growth relationship of trees, thereby confounding climate reconstructions which use tree rings. Since forcing factors have been detected that are more important than the tree species, we recommend the application of growth-specific approaches for the analysis of tree species' vulnerability to climate.
description: Purpose of Collection:
# climate/growth relationship NOAA Template Raw Measurements file added 2019-02-05.
DOI: 10.25921/x1y9-m048
title: NOAA/WDS Paleoclimatology - Allen - Moonlight Ridge - ATSE - ITRDB AUSL044

description: Seasonal variability is a significant source of uncertainty in projected changes to precipitation across southeastern Australia (SEA). While existing instrumental records provide seasonal data for recent decades, most proxy records (e.g., tree rings, corals, speleothems) offer only annual reconstructions of hydroclimate. We present the first cool-season (July-August) reconstruction of dam inflow (Lake Burbury) for western Tasmania in SEA based on tree-ring width (Athrotaxis selaginoides) and mean latewood cell wall thickness (Phyllocladus aspleniifolius) chronologies. The reconstruction, produced using principal component regression, verifies back to 1731 and is moderately skillful, explaining around 23% of the variance. According to the reconstruction, relatively low inflow periods occurred around 1860, the early 1900s and 1970, while relatively high inflows occurred in the 1770s and 1810s. Highest reconstructed inflows occurred in 1816, and lowest in 1909. Comparison with available documentary and instrumental records indicates that the reconstruction better captures high rather than low flow events. There is virtually no correlation between our reconstruction and another for December-January inflow for the same catchment, a result consistent with the relationship between seasonal instrumental data. This suggests that conditions in one season have not generally reflected conditions in the other season over the instrumental record, or for the past 277 years. This illustrates the value of obtaining reconstructions of regional hydroclimatic variability for multiple individual seasons in regions where dry and wet seasons are not strongly defined. The results also indicate that the hydroclimate of the southeastern Australian region cannot be adequately represented by a single regional reconstruction.
description: NOAA Template Raw Measurements file added 2019-01-24. NOAA Template Raw Measurements file added 2019-02-01. 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/x1aj-2a81
title: NOAA/WDS Paleoclimatology - Porter - Campbell Dolomite Uplands 1 Mackenzie Delta - PCGL - ITRDB CANA505

description: We present a reconstruction of June-July minimum temperatures since AD 1245 for the Mackenzie Delta region based on a 29-site network of white spruce (Picea glauca) ring-width series. Most but not all trees experienced a divergent temperature-growth response, similar to the divergence that has affected other white spruce trees across Yukon and Alaska. However, divergence in the study region began as early as AD 1900 and we have documented our methods to avoid including divergent signals in the reconstruction. Calibration/verification testing based on local temperature data, and multi-century coherence with nearby and large-scale temperature proxy records, confirm that our reconstruction is robust. The reconstruction shows cool conditions in the late 13th, early 18th and early 19th centuries, corresponding with solar minima and increased volcanism. These cool periods are interrupted by warm periods consistent with early to mid-20th century warmth. The late 20th century is the warmest interval, and the last decade is estimated to be 1.4C warmer than any decade before the mid-20th century. The reconstructed climate history corroborates other proxy-based inferences and supports the notion that high-latitude regions such as the Mackenzie Delta have experienced rapid warming in recent decades that is exceptional in the last eight centuries.
description: NOAA Template Raw Measurements file added 2019-01-27. NOAA Template Raw Measurements file added 2019-02-04.
DOI: 10.25921/xpw9-ac98
title: NOAA/WDS Paleoclimatology - Porter - Campbell Dolomite Uplands 2 Mackenzie Delta - PCGL - ITRDB CANA506

description: We present a reconstruction of June-July minimum temperatures since AD 1245 for the Mackenzie Delta region based on a 29-site network of white spruce (Picea glauca) ring-width series. Most but not all trees experienced a divergent temperature-growth response, similar to the divergence that has affected other white spruce trees across Yukon and Alaska. However, divergence in the study region began as early as AD 1900 and we have documented our methods to avoid including divergent signals in the reconstruction. Calibration/verification testing based on local temperature data, and multi-century coherence with nearby and large-scale temperature proxy records, confirm that our reconstruction is robust. The reconstruction shows cool conditions in the late 13th, early 18th and early 19th centuries, corresponding with solar minima and increased volcanism. These cool periods are interrupted by warm periods consistent with early to mid-20th century warmth. The late 20th century is the warmest interval, and the last decade is estimated to be 1.4C warmer than any decade before the mid-20th century. The reconstructed climate history corroborates other proxy-based inferences and supports the notion that high-latitude regions such as the Mackenzie Delta have experienced rapid warming in recent decades that is exceptional in the last eight centuries.
description: NOAA Template Raw Measurements file added 2019-01-27. NOAA Template Raw Measurements file added 2019-02-04.
DOI: 10.6084/m9.figshare.26137717
title: Generative AI answers and LGBTQ+ bias in diverse religous and country contexts

description: Prior research underscores the importance of enhancing the cultural sensitivity of generative AI tools, but often overlooks the intricate challenges of managing content related to minorities, whose perceptions vary widely across different cultures and religious backgrounds. This investigation explored how two generative AI platforms addressed homophobic comments when provided with various cultural and religious background information on the hypothetical user. The results indicated that AI tools can modify their support levels and types for LGBTQ+ individuals based on the cultural or religious information provided. This research contributes to the broader understanding of the social and ethical ramifications of AI responses, advocating that efforts to enhance the cultural diversity of generative AI outputs must be firmly rooted in the principles of human rights. The data of our project can be found here.
DOI: 10.6084/m9.figshare.26137717.v1
title: Generative AI answers and LGBTQ+ bias in diverse religous and country contexts

description: Prior research underscores the importance of enhancing the cultural sensitivity of generative AI tools, but often overlooks the intricate challenges of managing content related to minorities, whose perceptions vary widely across different cultures and religious backgrounds. This investigation explored how two generative AI platforms addressed homophobic comments when provided with various cultural and religious background information on the hypothetical user. The results indicated that AI tools can modify their support levels and types for LGBTQ+ individuals based on the cultural or religious information provided. This research contributes to the broader understanding of the social and ethical ramifications of AI responses, advocating that efforts to enhance the cultural diversity of generative AI outputs must be firmly rooted in the principles of human rights. The data of our project can be found here.
DOI: 10.25921/x84g-ny11
title: NOAA/WDS Paleoclimatology - Guiterman - Narbona Pass, Chuska Mountains - PIPO - ITRDB NM589

description: An enduring mystery from the great houses of Chaco Canyon is the origin of more than 240,000 construction timbers. We evaluate probable timber procurement areas for seven great houses by applying tree-ring width-based sourcing to a set of 170 timbers. To our knowledge, this is the first use of tree rings to assess timber origins in the southwestern United States. We found that the Chuska and Zuni Mountains (>75 km distant) were the most likely sources, accounting for 70% of timbers. Most notably, procurement areas changed through time. Before 1020 Common Era (CE) nearly all timbers originated from the Zunis (a previously unrecognized source), but by 1060 CE the Chuskas eclipsed the Zuni area in total wood imports. This shift occurred at the onset of Chaco florescence in the 11th century, a time with substantial expansion of existing great houses and the addition of seven new great houses in the Chaco Core area. It also coincides with the proliferation of Chuskan stone tools and pottery in the archaeological record of Chaco Canyon, further underscoring the link between land use and occupation in the Chuska area and the peak of great house construction. Our findings, based on the most temporally specific and replicated evidence of Chacoan resource procurement obtained to date, corroborate the long-standing but recently challenged interpretation that large numbers of timbers were harvested and transported from distant mountain ranges to build the great houses at Chaco Canyon. 
description:  NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/xyj1-3836
title: NOAA/WDS Paleoclimatology - The 'Living Blended Drought Atlas (LBDA)' North American Drought Reconstruction for the last 2000 years

description: IPCC Assessment Report 4 model projections suggest that the subtropical dry zones of the world will both dry and expand poleward in the future due to greenhouse warming. The US Southwest is particularly vulnerable in this regard and model projections indicate a progressive drying there out to the end of the 21st century. At the same time, the USA has been in a state of drought over much of the West for about 10 years now. While severe, this turn of the century drought has not yet clearly exceeded the severity of two exceptional droughts in the 20th century. So while the coincidence between the turn of the century drought and projected drying in the Southwest is cause for concern, it is premature to claim that the model projections are correct. At the same time, great new insights into past drought variability over North America have been made through the development of the North American Drought Atlas from tree rings. Analyses of this drought atlas have revealed past megadroughts of unprecedented duration in the West, largely in the Medieval period about 1000 years ago. A vastly improved Living Blended Drought Atlas (LBDA) for North America now under develop- ment reveals these megadroughts in far greater detail. The LBDA indicates the occurrence of the same Medieval megadroughts in the West and similar-scale megadroughts in the agriculturally and commercially important Mississippi Valley. Possible causes of these megadroughts and their implications for the future are discussed.
description: A high-resolution North American drought atlas reconstructed from tree rings. 
Provided Keywords: North American drought, tree rings, megadroughts, pluvials, PDSI.
DOI: 10.15468/dl.bsrhxz
title: Occurrence Download

description: A dataset containing 1870 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "TaxonKey is one of (Plethodon ventralis)"
 ]
}

 The dataset includes 1870 records from 10 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010935-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.p4z4nk
title: Occurrence Download

description: A dataset containing 4 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is BOLD:ADL4812"
 ]
}

 The dataset includes 4 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010936-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.9crehx
title: Occurrence Download

description: A dataset containing 2244 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Handroanthus heptaphyllus"
 ]
}

 The dataset includes 2244 records from 166 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010937-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qmdr87
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Schefflera actinophylla",
 "Country is Fiji",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010939-250717081556266/datasets/export for details.
DOI: 10.15468/dl.2dmzdc
title: Occurrence Download

description: A dataset containing 16299 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Coffea arabica"
 ]
}

 The dataset includes 16299 records from 556 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010934-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.2ypwyw
title: Occurrence Download

description: A dataset containing 51860 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Polygaloides chamaebuxus"
 ]
}

 The dataset includes 51860 records from 244 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010847-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.vsagay
title: Occurrence Download

description: A dataset containing 13147 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is China",
 "OccurrenceStatus is Present",
 "TaxonKey is Sorbus",
 "Year 1950-2025"
 ]
}

 The dataset includes 13147 records from 64 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010941-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5eqthg
title: Occurrence Download

description: A dataset containing 663 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "BasisOfRecord is one of (Human Observation, Machine Observation, Occurrence evidence, Observation)",
 "TaxonKey is one of (Myotis lucifugus)",
 "Country is one of (Bermuda, Canada, Greenland, Saint Pierre and Miquelon, United States of America)"
 ]
}

 The dataset includes 663 records from 13 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010942-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.3ka9vb
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "BasisOfRecord is one of (Human Observation, Machine Observation, Occurrence evidence, Observation)",
 "TaxonKey is one of (Myotis lucifugus)",
 "Country is one of (Afghanistan, Armenia, Azerbaijan, Bahrain, Bangladesh, Bhutan, Brunei Darussalam, Cambodia, China, Cyprus, Georgia, Hong Kong, India, Indonesia, Iran (Islamic Republic of), Iraq, Israel, Japan, Jordan, Kazakhstan, Korea (Democratic People’s Republic of), Korea, Republic of, Kuwait, Kyrgyzstan, Lao People’s Democratic Republic, Lebanon, Macao, Malaysia, Maldives, Mongolia, Myanmar, Nepal, Oman, Pakistan, Palestine, State of, Philippines, Qatar, Saudi Arabia, Singapore, Sri Lanka, Syrian Arab Republic, Tajikistan, Thailand, Timor-Leste, Türkiye, Turkmenistan, United Arab Emirates, Uzbekistan, Viet Nam, Yemen)"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010944-250717081556266/datasets/export for details.