cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/qtjw-fs24
title: NOAA/WDS Paleoclimatology - Büntgen - Vallee des Merveilles 2 - LADE - ITRDB FRAN045

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 2019-02-05.
DOI: 10.25921/q0gh-vy29
title: NOAA/WDS Paleoclimatology - Lara - Lenga larga - NOPU - ITRDB CHIL020

description: Nothofagus pumilio (Poepp et Endl.) Krasser, is a deciduous tree species that grows in Chile and adjacent Argentina between 36 and 56°S, often forming the Andean tree line. This paper presents the first eight tree-ring chronologies from N. pumilio at its northern range limit in the central Andes of Chile (36-39°S) and the first precipitation reconstruction for this region. Samples were taken from upper tree-line stands (1500-1700 m elevation) in three study areas: Vilches, Laguna del Laja, and Conguillío. Results indicate that, at the northern sites (Vilches and Laguna del Laja), the tree-ring growth of N. pumilio is positively correlated with late-spring and early summer precipitation and that higher temperatures reduce radial growth, probably because of an increase in evapotranspiration and decrease in water availability. At the southern Conguillío study area, radial growth was negatively correlated with late-spring and early summer precipitation. The presence of volcanic activity in this latter study area, which might have masked the climate signal, did not seem to have a significant influence on radial growth. A reconstruction of November-December (summer) precipitation for the period 1837-1996 from N. pumilio tree-ring chronologies accounted for 37% of instrumentally recorded precipitation variance. This is the first precipitation reconstruction from N. pumilio chronologies. Only temperature and snow cover have previously been reconstructed using this species. The reconstruction indicates that the driest and wettest 25-year periods within the past 160 years are 1890-1914 and 1917-1941, respectively.
description: Purpose of Collection:
# Climatology
# 
# Cores are stored at:
# University of Western Ontario NOAA Template Raw Measurements file added 2019-04-29.
DOI: 10.25921/q137-ms64
title: NOAA/WDS Paleoclimatology - Bigio fire data from Steven's Creek, San Juan Mountains - IMPD USSTE001

description: In the past few decades, wildfires have increased in size and severity in the Southwest and across the western US.  These recent trends in fire behavior are a drastic change in arid, ponderosa pine and mixed conifer forests of the Southwest compared with tree-ring records of fire history for the past ~ 400 years.  This study presents a late Holocene record (~ 3,000 years) of fire history and related changes in fire regimes with climate variability over annual to multi-decadal time scales.  Tree-ring and alluvial-sediment sampling sites were paired in four small, tributary basins located in the western San Juan Mountains of Colorado.  In our study sites, tree-ring records show that fire return intervals were longer and fire behavior was more severe on the north-facing slopes with relatively dense mixed conifer stands.  Increased fire barriers and steep topography decreased the fire frequency and extent relative to gentle terrain elsewhere in the range and leading to a lack of synchrony among fire years in different parts of the study area. The alluvial-sediment record showed four peaks in high-severity fire activity over the past 3,000 years ranging between 200 - 400 years in length.  The timing of peaks coincided with decadal-length drought episodes and were often preceded by multiple decades of above average winter precipitation.  The sampling of alluvial-sediment and tree-ring data allowed for site-level comparisons between recent alluvial deposits and specific fire years interpreted from the tree-ring records.  We found good correspondence between the type of fire-related sediment deposit (i.e. geomorphic response) in the alluvial record and the extent of mixed and high-severity fire estimated from the tree-ring record, and the correspondence was well-supported by the debris flow probability model results.  The two paleofire data tend to represent particular components of the historical fire regime, with alluvial-sediments biased towards infrequent, high-severity events during recent millennia, and the tree-ring record biased toward lower severity fires during recent centuries.  The combined analyses of different paleofire proxy types in the same study sites, therefore, can enhance and expand our understanding of fire and climate history beyond what is possible with either proxy alone.
description: This site was chosen to correspond with alluvial-stratigraphy fire history sampling locations.
DOI: 10.25921/qpf6-vg45
title: NOAA/WDS Paleoclimatology - Büntgen - Ritena - LADE - ITRDB SWIT327

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: 
# dendroclimatology
# 
# Cores are stored at: 
# WSL
# 
# Notes: 
# Formerly rw00498rit04
# 
# References:
# Buntgen et al: (2006) Journal of Climate; (2006) TRACE; 
# (2006) Trees; (2005) Climate Dynamics; (2005) TRACE; 
# (2008) GCB; (2009) New Phytologist NOAA Template Raw Measurements file added 2019-02-05.
DOI: 10.25921/q6m6-xy78
title: NOAA/WDS Paleoclimatology - Cherubini - San Rossore - PIPI - ITRDB ITAL034

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: 
# Modelling carbon budget
# 
# Cores are stored at: 
# 
# Notes: 
# planatation surrounding a flux tower (43?43'40'' N, 10?17'04'' E)
# Formerly pima
# 
# References:
# Chiesi et al (2005): 
# Modelling carbon budget of Mediterranean forests using ground and remote sensing measurenemts, 
# AaFM 135, 22-34. NOAA Template Raw Measurements file added 2019-02-05.
DOI: 10.25921/qkvv-b578
title: NOAA/WDS Paleoclimatology - Colenutt - Storm Mountain - LALY - ITRDB CANA419

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: 
# # Cores are stored at:
# # University of Western Ontario
# # 
# # 
# # References:
# # Colenutt M.  2000.  
# # Climate reconstruction in the southern Canadian Rockies using tree-ring data from alpine larch.  
# # PhD dissertation, University of Western Ontario, London, Ontario.  NOAA Template Raw Measurements file added 2019-01-27. NOAA Template Raw Measurements file added 2019-02-04.
DOI: 10.25921/q6ed-tc29
title: NOAA/WDS Paleoclimatology - Path Lake, Nova Scotia 9,000 Year Pollen Data and Climate Reconstructions

description: A high-resolution pollen record from Path Lake in Port Joli Harbour, Nova Scotia, Canada, provides a paleo-ecological perspective on Holocene climate and vegetation variability within the context of local archaeological research. Pollen assemblages in the early Holocene reflect a post-glacial forest dominated by Pinus, Tsuga, Betula and Quercus. During this time, a lower frequency of radiocarbon dated cultural material suggests lower human settlement intensity. Shallow water aquatic (Isoetes) and wetland (Alnus, Sphagnum) taxa increased after 3400 cal yr BP in response to a transition towards wetter climatic conditions. Culturally significant periods, where settlement intensity increased in the Maritimes and Maine, coincide with maximum values of reconstructed total annual precipitation, suggesting that environmental conditions may have influenced prehistoric human activity. European settlement, after 350 cal yr BP, was marked by a rise in Ambrosia. The impact of anthropogenic fire disturbances on the landscape was evidenced by peak charcoal accumulations after European settlement.
description: High-resolution pollen and physcial properties data from Path Lake, Nova Scotia.  Data include pollen and charcoal data plus loss-on-ignition and magnetic susceptibility data.
DOI: 10.25921/qtbd-eb80
title: NOAA/WDS Paleoclimatology - Soulé - Paine Gulch - PSME - ITRDB MT134

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 2019-02-08.
DOI: 10.25921/q0q1-mw88
title: NOAA/WDS Paleoclimatology - Walsingham Cavern, Bermuda Sedimentary and Isotope Data and Temperature Anomalies over the last 3500 Years

description: North Atlantic climate archives provide evidence for increased storm activity during the Little Ice Age (150 to 600 calibrated years (cal years) B.P.) and centered at 1700 and 3000 cal years B.P., typically in centennial-scale sedimentary records. Meteorological (tropical versus extratropical storms) and climate forcings of this signal remain poorly understood, although variability in the North Atlantic Oscillation (NAO) or Atlantic Meridional Overturning Circulation (AMOC) are frequently hypothesized to be involved. Here we present records of late Holocene storminess and coastal temperature change from a Bermudian submarine cave that is hydrographically circulated with the coastal ocean. Thermal variability in the cave is documented by stable oxygen isotope values of cave benthic foraminifera, which document a close linkage between regional temperature change and NAO phasing during the late Holocene. However, erosion of terrestrial sediment into the submar ine cave provides a “storminess signal” that correlates with higher-latitude storminess archives and broader North Atlantic cooling events. Understanding the driver of this storminess signal will require higher-resolution storm records to disentangle the contribution of tropical versus extratropical cyclones and a better understanding of cyclone activity during hemispheric cooling periods. Most importantly, however, the signal in Bermuda appears more closely correlated with proxy-based evidence for subtle AMOC reductions than NAO phasing.
description: This dataset includes all sedimentary and geochemical results used for plotting the figures in the publication. Complete radiocarbon information is available in the original publication (Table 1, van Hengstum et al., 2015).
DOI: 10.25921/q6vk-bh20
title: NOAA/WDS Paleoclimatology - Lake DV09, Devon Island 7,500 Year Physical Properties Data

description: Sediment cores from Lake DV09, northern Devon Island, Nunavut, Canada (75 34'34"N, 89 18'55"W), were studied to reconstruct the lake ontogeny through analysis and interpretation of the sediment stratigraphy. The lake was uplifted from marine inundation ~7600 cal BP. After a millennium of rapid sediment accumulation, which coincided with the Holocene Thermal Maximum in the region, accumulation rates decreased over the past 6000 years as the Arctic became colder. This resulted in the deposition of very fine laminae that were interpreted as varves. The uppermost laminated sediments provided a ~1600 year history of annual sediment transport and deposition into the lake. During periods of warmer temperatures, such as between 6000 and 7500 cal BP and during the Medieval Climate Anomaly (~950-1300 CE; CE, Christian Era), hydroclimatic and permafrost slope processes increased sedimentation rates into the basin.
description: Description: Multiproxy data from 2 sediment cores collected in Lake DV09, Devon Island, Nunavut, Canada, as presented in Courtney Mustaphi and Gajewski (2013) Figures 2, 4, 5, and 6. Measured parameters include varve thickness, magnetic susceptibility, clay/sand/silt, loss-on-ignition, and sediment greyscale.  Lake DV09 has a surface area of 3ha, 16m maximum depth, pH of 8.4, and is located 1.3 km from the coast.  Bedrock is Middle Ordovician Bay Fiord Formation, soils are Cryic regosols, and vegetation is Northern Arctic tundra.
DOI: 10.25921/qzc1-wy05
title: NOAA/WDS Paleoclimatology - NI LIBI Composite 1 Tree ring width, PAGES Australasia 2k Version

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: Uploaded by R. Neukom, data obtained from NOAA Paleo DB.
	 These are no raw data but processed and truncated chronologies, representing a composite of two or more individual sites. Details see (Neukom and Gergis 2011, The Holocene, DOI: 10.1177/0959683611427335). For the raws contact the authors or/and check ITRDB.
DOI: 10.25921/qxx3-cn64
title: NOAA/WDS Paleoclimatology - Stevenson - Eagletown - PITA - ITRDB OK039

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 2019-02-08.
DOI: 10.25921/qvn8-1462
title: NOAA/WDS Paleoclimatology - Cariaco Basin, 35-55 ka Bulk Sediment and Foraminiferal Geochemistry

description: Understanding changes to the marine nitrogen cycle on millennial and shorter time scales can help determine the influence of rapid climate change on the fixed N pool and its sources and sinks. Rapid changes in denitrification have been observed in the eastern tropical North Pacific (ETNP) and Arabian Sea; however, millennial scale d15N records in regions influenced by N2 fixation are sparse. We present a sedimentary d15N record from the Cariaco Basin during marine isotope stage (MIS) 3 (~35-55 ka). The d15N record displays a pattern of millennial scale variability that tracks the Greenland ice core Dansgaard-Oeschger cycles, with higher values observed during interstadial periods, lower values during stadial periods, and abrupt transitions in between. Conditions during interstadials are similar to those at present in the Cariaco Basin, with the sedimentary d15N signal reflecting a combination of local processes and an imported regional signal. If interpreted to reflect regional processes, the interstadial d15N values (average ~5.1 per mil) support the argument that N2 fixation did not increase in the tropical North Atlantic during the last glacial. The lower d15N values during stadials, when lower sea level resulted in increased physical isolation of the basin, can be explained primarily by local processes. In spite of the importance of local processes, striking similarity is observed between the Cariaco record and millennial scale d15N records from the ETNP and Arabian Sea. The apparent synchronicity of changes observed in all three regions suggests an atmospheric teleconnection between the three sites and high-latitude climate forcing during MIS 3.
description: This data set contains bulk sediment (%TOC, %N, d15N, scanning XRF) and foraminferal geochemistry (Mg/Ca) used to reconstruct millennial-scale nutrient cycle dynamics in the Cariaco Basin during MIS 3.
DOI: 10.25921/qdh5-cf77
title: NOAA/WDS Paleoclimatology - Knapp - Rock Creek West - PIPO - ITRDB MT128

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 2019-02-08.
DOI: 10.25921/q9hb-r786
title: NOAA/WDS Paleoclimatology - Albemarle Sound Drainage Basin 1000 Year Moisture Balance Reconstruction

description: Freshwater discharge into Albemarle Sound and many other large estuaries can have a major impact on the physical and biological properties of the estuary. Earlywood (EW) and latewood (LW) width tree ring chronologies recently developed from ancient trees and sub-fossil logs found at Devil's Gut of the Roanoke River, North Carolina, were used with new EW and LW width data from Blackwater River, Virginia, to reconstruct the July Palmer Hydrological Drought Index (PHDI) over the drainage basin of Albemarle Sound from 934 to 2005. This reconstruction is based on a principal component regression using millennium-long chronologies of both EW and LW widths, calibrated and verified against instrumental July PHDI from 1895 to 1985. The reconstruction provides a lengthy representation of inter-annual to multi-decadal growing season moisture variability that directly affects water quality in the Albemarle Sound estuarine ecosystem. Single-year drought and wetness extremes were more common in the modern instrumental period (1895-2005), but prolonged droughts reconstructed during the Medieval and Early Colonial eras were more severe and sustained than the reconstructed or observed droughts during the twentieth century. Several abrupt transitions between decadal drought and wetness regimes are reconstructed, especially during the Medieval Era. Composite analysis of lower-magnitude sub-decadal regime shifts in the instrumental record during the twentieth century indicates that major changes in mid-latitude circulation over the Northern Hemisphere may have been involved in these longer decadal transitions between moisture regimes over Albemarle Sound in prehistory.
description: July moisture balance (Palmer Hydrological Drought Index, PHDI) reconstruction for the Albemarle Sound, North Carolina 	drainage basin, based on two baldcypress tree-ring chronologies, for the past millennium. Tree-ring data are archived in the International Tree-Ring Data Bank (ITRDB), site codes VA021 and NC025.
DOI: 10.25921/q4tw-gb22
title: NOAA/WDS Paleoclimatology - European Late Glacial Chironomid-Inferred July Temperature

description: Comparisons of climate model hindcasts with independent proxy data are essential for assessing model performance in non-analogue situations. However, standardized palaeoclimate data sets for assessing the spatial pattern of past climatic change across continents are lacking for some of the most dynamic episodes of Earth's recent past. Here we present a new chironomid-based palaeotemperature dataset designed to assess climate model hindcasts of regional summer temperature change in Europe during the late-glacial and early Holocene. Latitudinal and longitudinal patterns of inferred temperature change are in excellent agreement with simulations by the ECHAM-4 model, implying that atmospheric general circulation models like ECHAM-4 can successfully predict regionally diverging temperature trends in Europe, even when conditions differ significantly from present. However, ECHAM-4 infers larger amplitudes of change and higher temperatures during warm phases than our palaeotemperature estimates, suggesting that this and similar models may overestimate past and potentially also future summer temperature changes in Europe.
description: Chironomid-inferred July air temperature estimates corrected to modern sea level elevation, for 31 individual locations plus 7 regional stacks.
DOI: 10.25921/qxtm-1n47
title: NOAA/WDS Paleoclimatology - GISP2 Ice Core GISP2 Air Mass Trajectories

description: The seasonal variation in atmospheric transport patterns to Summit, Greenland, is examined using a 44-year record of daily, 10-day, isobaric back trajectories at the 500-hPa level. Over 24,000 modeled trajectories are aggregated into distinct patterns using cluster analysis. Ten-day trajectories reaching Summit are longest during winter, with 67% extending upwind (westward) as far back as Asia or Europe. Trajectories are shortest during summer, with 46% having 10-day origins over North America. During all seasons a small percentage (3-7%) of trajectories originate in west Asia/Europe and follow a meridional path over the Arctic Ocean before approaching Summit from the northwest. Trajectories at the 700-hPa level tend to be shorter than at 500 hPa, with many of the 700-hPa trajectories from North America tracking over the North Atlantic and approaching Summit from the south. The long-range transport climatology for Summit is similar to a year-round climatology prepared for Dye 3, located 900 km to the south [Davidson et al., 1993b]. An analysis of several aerosol species measured at Summit during summer 1994 reveals examples of the usefulness and also the limitations of using long-range air trajectories to interpret chemical data.
description: The included data sets are files for 500 mb and 700 mb atmospheric
trajectories for the Greenland Summit.