cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.31354532.v1
title: Spatiotemporal variability of surface-based temperature inversions in high-latitude northcentral Yukon valleys utilizing a dense network of elevation transects

description: Surface-based temperature inversions (SBIs) strongly influence air temperature variability in high-latitude mountains, yet their spatial structure remains poorly resolved. To address this gap, a dense network of air temperature sensors was deployed and elevational transect analysis (ETA) was applied to quantify surface lapse rates (SLRs) and SBI characteristics at fine temporal and spatial scales. SBI frequency and SLR magnitude increased significantly in anomalously warm summers, linking large-scale climate variability and valley-scale elevational temperature patterns. Contrary to the common assumption of linear lapse rates, annual and monthly mean SLRs were most strongly positive within the lowest 60 m of the valleys and weakened rapidly upslope. This highlights the importance of sampling valley bottoms and lower slopes to capture SBI intensity. Using ETA, SBI depth was quantified for the first time and found on average to be shallow (&lt;250 m), rarely extending above the ridgetops (500 m). SBI development and breakup were not solely driven by cold air pooling and daytime convective mixing but were also driven by processes such as warming or cooling aloft. These findings provide new insights into the SBI structure in subarctic valleys. They strengthen the physical basis for representing temperature variability, essential to modeling surface phenomena such as permafrost distribution.
DOI: 10.5519/qd.v6rbxson
title: Query on the Natural History Museum Data Portal (data.nhm.ac.uk) (6143416 records)
DOI: 10.48322/vzh0-rf17
title: Voyager 1 Low-Energy Charged Particle (LECP) O Fluxbox Fluxes in ASCII Format 26-day
title: V1-LECP-FLUXBOX-O-FLUX-PT5D

description: Weighted Count Rates, Derived from PHA Data plus Rate Data by sectors and averaged, Voyager1, LECP,  
                Calibrated, Cadence PT5D
DOI: 10.13140/rg.2.2.15602.09922
title: Tesi Dottorato di Ricerca Oncoplastica Alessandro Borgognone ( Matricola 018203) final version
DOI: 10.25921/zcg2-qs71
title: NOAA/WDS Paleoclimatology - Jacoby - River View - LAGM - ITRDB RUSS218

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 2019-04-08. 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/zc08-y645
title: NOAA/WDS Paleoclimatology - Woodhouse - Eagle 11 - PSME - ITRDB CO644

description: In western North America, snowpack has declined in recent decades, and further losses are projected through the 21st century. Here, we evaluate the uniqueness of recent declines using snowpack reconstructions from 66 tree-ring chronologies in key runoff-generating areas of the Colorado, Columbia, and Missouri River drainages. Over the past millennium, late 20th century snowpack reductions are almost unprecedented in magnitude across the northern Rocky Mountains and in their north-south synchrony across the cordillera. Both the snowpack declines and their synchrony result from unparalleled springtime warming that is due to positive reinforcement of the anthropogenic warming by decadal variability. The increasing role of warming on large-scale snowpack variability and trends foreshadows fundamental impacts on streamflow and water supplies across the western United States.
description: Purpose of Collection: 
# Climatology - Snowpack reconstruction
#  NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/zy9p-h466
title: NOAA/WDS Paleoclimatology - Wunder - 16 Maritime Terrace, Birkenhead - AGAU - ITRDB NEWZ105

description: It is not known how global warming will affect the El Niño/Southern Oscillation (ENSO). The instrumental record is too short to discern centennial-scale trends and modelling results are inconclusive1, 2, 3, 4, 5. Proxy reconstructions indicate that ENSO activity was relatively high during the late twentieth century6, 7, 8, 9, 10, but whether this was unusual in the millennial context remains uncertain. Here we present insights into these issues derived from rings of the kauri tree (Agathis australis), a rare long-lived conifer endemic to the forests of northern New Zealand. Our results indicate that the twentieth century was the most ‘ENSO-active’ century of the past 500 years, but may not be unique in the context of the past 700 years, and that ENSO activity comparable to or elevated above that experienced during the late twentieth century is plausible under warmer-than-present conditions. We also find evidence that there may have been significant changes in the ENSO teleconnection to the New Zealand region during the fourteenth and fifteenth centuries, and of multi-decadal fluctuations in ENSO-related activity building up to the present day. Although these two features may delay the expression of increased ENSO activity in the New Zealand region, our results indicate that New Zealand climate is likely to be more dominated by ENSO-related inter-annual variability as the world continues to warm.
description: NOAA Template Raw Measurements file added 2019-01-24. NOAA Template Raw Measurements file added 2019-02-01.
DOI: 10.25921/z2a1-3s69
title: NOAA/WDS Paleoclimatology - Northern Spain 23,000 Year Littorina littorea Amino Acid Racemization Data

description: The inter-and intra-crystalline fractions of the topshell Phorcus lineatus recovered from modern specimens and shells from archaeological sites in Northern Spain covering Neolithic, Mesolithic, and Upper Magdalenian periods were examined for amino acid composition and racemisation over time. The main loss of proteins from the inter-crystalline fraction occurred within the first 6000 years after the death of the organism. In contrast, the intra-crystalline fraction isolated by bleaching-with a different protein composition to that of the inter-crystalline fraction-appeared to behave like a closed system for at least 12.6 ka, as reflected by the lack of a significant decrease in amino acid content. However, changes in the relative composition of the amino acids present in these shells occurred during this period. The concentration of aspartic acid remained almost constant with age within the intra-crystalline fraction and its contribution to the total amino acid content also remained the same. Good correspondence was obtained between Asx D/L values in unbleached and bleached samples and age, thereby allowing the dating of archaeological sites and the determination of chronometric age.
description: Amino acid racemization (AAR) data in mollusc samples (Littorina littorea) from archaeological levels in Northern Iberian Peninsula caves.

LABORATORY AND ANALYTICAL INFORMATION	
Lab:	Biomolecular Stratigraphy Laboratory (E.T.S.I.Minas)
Lab PI:	José E. Ortiz, Yolanda Sánchez-Palencia, Trinidad Torres
Preparation date: 	Apr 2010 through Nov 2018
Pretreatment: 	HCl 2N
AA  fraction =	AMINO FRACTION
Hydrolysis procedure: 	20 hr at 100°C in 20 µL/mg of 7 M HCl under N2 
Bleach:	No/yes
Analytical method:	RLPC
Instrumental programming: 	RPLC buffer gradient 
Concentration	yes
Area or height ratio:	Area
Blank corrections:	none
Response factors:	none
Data screening criteria: Rejection criteria: 	
1 = L-Ser/L-Asp > 0.8; 	
2 = Asp or Glu D/L > ± 2s beyond group mean 	
3 = Asp or Glu D/L fall off the covarience trend
DOI: 10.25921/zknj-6494
title: NOAA/WDS Paleoclimatology - D'Arrigo - Taymir Peninsula Composite - LAGM - ITRDB RUSS221

description: Previous tree-ring-based Northern Hemisphere temperature reconstructions portray a varying amplitude range between the "Medieval Warm Period" (MWP), "Little Ice Age" (LIA) and present. We describe a new reconstruction, developed using largely different methodologies and additional new data compared to previous efforts. Unlike earlier studies, we quantify differences between more traditional (STD) and Regional Curve Standardization (RCS) methodologies, concluding that RCS is superior for retention of low-frequency trends. Continental North American versus Eurasian RCS series developed prior to merging to the hemispheric scale cohere surprisingly well, suggesting common forcing, although there are notable deviations (e.g., fifteenth to sixteenth century). Results indicate clear MWP (warm), LIA (cool), and recent (warm) episodes. Direct interpretation of the RCS reconstruction suggests that MWP temperatures were nearly 0.7C cooler than in the late twentieth century, with an amplitude difference of 1.14C from the coldest (1600-1609) to warmest (1937-1946) decades. However, we advise caution with this analysis. Although we conclude, as found elsewhere, that recent warming has been substantial relative to natural fluctuations of the past millennium, we also note that owing to the spatially heterogeneous nature of the MWP, and its different timing within different regions, present palaeoclimatic methodologies will likely "flatten out" estimates for this period relative to twentieth century warming, which expresses a more homogenous global "fingerprint." Therefore we stress that presently available paleoclimatic reconstructions are inadequate for making specific inferences, at hemispheric scales, about MWP warmth relative to the present anthropogenic period and that such comparisons can only still be made at the local/regional scale.
description: Notes: 
# Taymir Peninsula Composite, includes sites Ari Mas, 
# Ari Mas south, Lukunskaja River, and Kotuikan River. 
# 
# Project Title "Synthesis of Three Decades of Research 
# on Tree Growth in Northern Forests in relation to 
# Global Climatic Change"  NOAA Template Raw Measurements file added 2019-04-08. 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/z9na-ek78
title: NOAA/WDS Paleoclimatology - Cave of the Bells, Arizona 53-11 KYrBP Stalagmite Oxygen Isotope Data

description: Many regions of the world experienced abrupt climate variability during the last glacial period (75-15 thousand years ago). These changes probably arose from interactions between Northern Hemisphere ice sheets and circulation in the North Atlantic Ocean, but the rapid and widespread propagation of these changes requires a large-scale atmospheric response whose details remain unclear. Here we use an oxygen isotope record from a speleothem collected from the Cave of the Bells, Arizona, USA, to reconstruct aridity in the southwestern United States during the last glacial period and deglaciation. We find that, during this period, aridity in the southwestern United States and climate in the North Atlantic region show similar patterns of variability. Periods of warmth in the North Atlantic Ocean, such as interstadials and the Bølling-Allerød warming, correspond to drier conditions in the southwestern United States. Conversely, cooler temperatures in the high latitudes are associated with increased regional moisture. We propose that interstadial warming of the North Atlantic Ocean diverted the westerly storm track northward, perhaps through weakening of the Aleutian Low, and thereby reduced moisture delivery to southwestern North America. A similar response to future warming would exacerbate aridity in this already very dry region.
description: High-resolution stalagmite oxygen isotope data from Cave of the Bells, 
Arizona, USA.  Stalagmite COB-01-02 was recovered in July 2001, 
and sampled for stable isotope analysis at 100 um increments. 
62 U-Th dates provide age control.  Average time step of the d18O data 
is ~35 years, allowing for interpretation of abrupt climate variability 
in the Southwestern USA.
DOI: 10.25921/z4w9-yk45
title: NOAA/WDS Paleoclimatology - Chernykh - Church of the Assumption of the Most Holy Theotokos of Kondopoga - PISP - ITRDB RUS390

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: 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/zrvd-a863
title: NOAA/WDS Paleoclimatology - Alfaro - Okanagan Valley - PSME - ITRDB CANA589

description: The western spruce budworm (WSB), Choristoneura occidentalis Freeman), a defoliator of conifers in western North America, causes severe timber losses to forests. In British Columbia, Canada, where the main species damaged is Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco, outbreaks of C. occidentalis have been recorded since 1909. However, there is little information on the frequency of outbreaks of this defoliator for previous centuries. This information is needed to establish baselines defining the historic range of variability of this disturbance, to calculate potential depletions in timber supply from defoliation, and to refine forest management plans. Also, precise estimates of budworm recurrence are needed to assess potential ecosystem changes and possible departures from the historic range of this disturbance due to global warming. We used dendrochronology and time series analysis to determine past frequency of spruce budworm outbreaks in southern BC and found that, since the 1500s, outbreaks have been periodic, with a mean return interval of 28 years (95% Confidence Interval 21-35 years). No data was available before the 1500s. We found the number of outbreaks per century, since the 1800s, was fairly constant, with 3-4 outbreaks per century.
description: NOAA Template Raw Measurements file added 2020-01-15. 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/zjrb-9b32
title: NOAA/WDS Paleoclimatology - Giralia Bay, Western Australia 90 Year Mangrove Wood Density Data

description: Mangrove trees tend to be larger and mangrove communities more diverse in tropical latitudes, particularly where there is high rainfall. Variation in the structure, growth and productivity of mangrove forests over climatic gradients suggests they are sensitive to variations in climate, but evidence of changes in the structure and growth of mangrove trees in response to climatic variation is scarce. Bomb-pulse radiocarbon dating provides accurate dates of recent wood formation and tree age of tropical and subtropical tree species. Here, we used radiocarbon techniques combined with X-ray densitometry to develop a wood density chronology for the mangrove Avicennia marina in the Exmouth Gulf, Western Australia (WA). We tested whether wood density chronologies of A. marina were sensitive to variation in the Pacific Decadal Oscillation Index, which reflects temperature fluctuations in the Pacific Ocean and is linked to the instrumental rainfall record in north WA. We also determined growth rates in mangrove trees from the Exmouth Gulf, WA. We found that seaward fringing A. marina trees (~10 cm diameter) were 48±1 to 89±23 years old (mean ± 1sigma) and that their growth rates ranged from 4.08±2.36 to 5.30±3.33 mm/yr (mean ±1sigma). The wood density of our studied mangrove trees decreased with increases in the Pacific Decadal Oscillation Index. Future predicted drying of the region will likely lead to further reductions in wood density and their associated growth rates in mangrove forests in the region.
description: Mangrove (Avicennia marina) wood density data from Giralia Bay, Exmouth Gulf, Western Australia. Data are presented as 4 wood density (g/cm3) profiles per stem (stem 1, stem 2, stem 3, stem 4) and with x=distance from pith (cm) and x=years (calendar year before 2008 AD determined by radiocarbon dating). NOAA Template Raw Measurements file added 2019-01-24.
DOI: 10.25921/z28e-cf28
title: NOAA/WDS Paleoclimatology - Woodhouse - Amoco - PIPO - ITRDB CO657

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 2020-01-15.
DOI: 10.25921/zvse-0820
title: NOAA/WDS Paleoclimatology - Irish Sea 500 Year Arctica islandica Carbon Isotope and Chronology Record

description: The identification in various proxy records of periods of rapid (decadal scale) climate change over recent millennia, together with the possibility that feedback mechanisms may amplify climate system responses to increasing atmospheric CO2, highlights the importance of a detailed understanding, at high spatial and temporal resolutions, of forcings and feedbacks within the system. Such an understanding has hitherto been limited because the temperate marine environment has lacked an absolute timescale of the kind provided by tree-rings for the terrestrial environment and by corals for the tropical marine environment. Here we present the first annually resolved, multi-centennial (489-year), absolutely dated, shell-based marine master chronology. The chronology has been constructed by detrending and averaging annual growth increment widths in the shells of multiple specimens of the very long-lived bivalve mollusc Arctica islandica, collected from sites to the south and west of the Isle of Man in the Irish Sea. The strength of the common environmental signal expressed in the chronology is fully comparable with equivalent statistics for tree-ring chronologies. Analysis of the 14C signal in the shells shows no trend in the marine radiocarbon reservoir correction (ΔR), although it may be more variable before ∼1750. The δ13C signal shows a very significant (R2=0.456, pb0.0001) trend due to the 13C Suess effect.
description: These datasets include raw measurements of annual growth increments in shells of the mollusc Arctica islandica from sites close to the Isle of Man, Irish Sea; crossdated chronologies derived using mean value functions of the detrended raw measurements; delta 13C data and radiocarbon data, including the marine radiocarbon reservoir correction (delta R). All these data are used in Butler et al 2009, and the chronologies are also used in Butler et al 2010, Quaternary Science Reviews 29(2010) 1614-1632
Keywords: Sclerochronology, Irish Sea, Arctica islandica
DOI: 10.25921/z2ht-nx89
title: NOAA/WDS Paleoclimatology - Cherubini - Jussy JS - QUSP - ITRDB SWIT262

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/zabf-zc09
title: NOAA/WDS Paleoclimatology - Li - Xiangchen - JUTI - ITRDB CHIN017

description: The Asian monsoon system affects more than half of humanity worldwide, yet the dynamical processes that govern its complex spatiotemporal variability are not sufficiently understood to model and predict its behavior, due in part to inadequate long-term climate observations. Here we present the Monsoon Asia Drought Atlas (MADA), a seasonally resolved gridded spatial reconstruction of Asian monsoon drought and pluvials over the past millennium, derived from a network of tree-ring chronologies. MADA provides the spatiotemporal details of known historic monsoon failures and reveals the occurrence, severity, and fingerprint of previously unknown monsoon megadroughts and their close linkages to large-scale patterns of tropical Indo-Pacific sea surface temperatures. MADA thus provides a long-term context for recent monsoon variability that is critically needed for climate modeling, prediction, and attribution.
description: Purpose of Collection:  
# Climatology - precipitation analysis  NOAA Template Raw Measurements file added 2019-04-08.