cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/88ab-bb96
title: NOAA/WDS Paleoclimatology - Büntgen - DolinaPanszczycka - PCAB - ITRDB POLA025

description: We analyzed growth responses to climate of 24 tree-ring width and four maximum latewood density chronologies from the greater Tatra region in Poland and Slovakia. This network comprises 1183 ring-width and 153 density measurement series from four conifer species (Picea abies (L.) Karst., Larix decidua Mill., Abies alba (L.) Karst., and Pinus mugo (L.)) between 800 and 1550 m a.s.l. Individual spline detrending was used to retain annual to multi-decadal scale climate information in the data. Twentieth century temperature and precipitation data from 16 grid-boxes covering the 48-50 °N and 19-21 °E region were used for comparison. The network was analyzed to assess growth responses to climate as a function of species, elevation, parameter, frequency and site ecology. Twenty ring-width chronologies significantly correlated (P < 0.05) with June-July temperatures, whereas the latewood density chronologies were correlated with the April-September temperatures. Climatic effects of the previous-year summer generally did not significantly influence ring formation, whereas site elevation and frequency of growth variations (i.e., inter-annual and decadal) were significant variables in explaining growth response to climate. Response to precipitation increased with decreasing elevation. Correlations between summer temperatures and annual growth rates were lower for Larix decidua than for Picea abies. Principal component analysis identified five dominant eigenvectors that express somewhat contrasting climatic signals. The first principal component contained highest loadings from 11 Picea abies ring-width chronologies and one Pinus mugo ring-width chronology and explained 42% of the network's variance. The mean of these 12 high-elevation chronologies was significantly correlated at 0.62 with June-July temperatures, whereas the mean of three latewood density chronologies, which loaded most strongly on the fourth principal component, significantly correlated at 0.69 with April-September temperatures (P < 0.001 over the 1901-2002 period in both cases). These groupings allow for a robust estimation of June-July (1661-2004) and April-September (1709-2004) temperatures, respectively. Comparison with reconstructions from the Alps and Central Europe supports the general rule of the dominant influence of growing season temperature on high-elevation forest growth.
description: NOAA Template Raw Measurements file added 2019-02-05.
DOI: 10.25921/8pc3-dc83
title: NOAA/WDS Paleoclimatology - Touchan - Tizi u Treten - CDAT - ITRDB MORC016

description: Changes in precipitation patterns and the frequency and duration of drought are likely to be the feature of anthropogenic climate change that will have the most direct and most immediate consequences for human populations. The latest generation of state-of-the-art climate models project future widespread drying in the subtropics. Here, we reconstruct spatially-complete gridded Palmer drought severity index values back to A.D. 1179 over Morocco, Algeria, and Tunisia. The reconstructions provide long-term context for northwest African hydroclimatology, revealing large-scale regional droughts prior to the sixteenth century, as well as more heterogeneous patterns in sixteenth, eighteenth, and twentieth century. Over the most recent decades a shift toward dry conditions over the region is observed, which is consistent with general circulation model projections of greenhouse gas forced enhanced regional subtropical drought.
description: NOAA Template Chronology file added 2018-12-13. NOAA Template Raw Measurements file added 2019-05-01.
DOI: 10.25921/8g2b-x832
title: NOAA/WDS Paleoclimatology - EPICA Dome C Ice Core Termination I d13CO2 Data

description: The causes of the ~80 ppmv increase of atmospheric carbon dioxide (CO2) during the last glacial-interglacial climatic transition remain debated. We analyzed the parallel evolution of CO2 and its stable carbon isotopic ratio (d13CO2) in the European Project for Ice Coring in Antarctica (EPICA) Dome C ice core to bring additional constraints.  Agreeing well but largely improving the Taylor Dome ice core record of lower resolution, our d13CO2 record is characterized by a W shape, with two negative d13CO2 excursions of 0.5‰ during Heinrich 1 and Younger Dryas events, bracketing a positive d13CO2 peak during the Bølling/Allerød warm period. The comparison with marine records and the outputs of two C cycle box models suggest that changes in Southern Ocean ventilation drove most of the CO2 increase, with additional contributions from marine productivity changes on the initial CO2 rise and d13CO2 decline and from rapid vegetation buildup during the CO2 plateau of the Bølling/Allerød.
description: High resolution record of CO2 and d13CO2 across Termination I from the European Project for Ice Coring in Antarctica (EPICA) Dome C (EDC) ice core.  This record is compared to existing lower-resolution EPICA Dome C CO2 data and d13CO2 from the Taylor Dome Ice core, in order to evaluate mechanisms for the Termination I CO2 rise.  

The experimental procedure of extraction of CO2 and its stable isotopes, as well as the synchronization of EDC age scale to GICC05, are described in the methods section of Lourantou et al. 2010. An even more detailed description can be found in Lourantou, 2009 (PhD thesis, can be found online at: http://tel.archives-ouvertes.fr/tel-00370658/fr/) 

Termination I is the transition from the Last Glacial Maximum (~20 kyr B.P.) to the Early Holocene (~10 kyr B.P).
DOI: 10.25921/8r3a-jn54
title: NOAA/WDS Paleoclimatology - Murray Canyon MD03-2611 Holocene Foraminifera Stable Isotope Data

description: To understand Holocene climatic development and to determine drivers of climatic changes and climate variability, high-resolution marine proxy records are required from key oceanic locations. However, information on the Holocene climate development from the Southern Hemisphere is still rare and mainly based on terrestrial archives. Here, we present data with a high-resolution of circa 35 years from sediment cores taken east of the Great Australian Bight, where it is possible to determine Southern Ocean Holocene climate and the longer-term trends of the El Nino-Southern Oscillation (ENSO) conditions. For this purpose, we used the oxygen-isotope records of two planktonic foraminifer species Globigerinoides ruber and Globigerina bulloides which inhabit different water masses as well as faunal counts of planktonic foraminifers. After the ocean frontal systems off southern Australia were pushed northward by orbitally-forced insolation changes during the early Holocene, the data indicate increasing ENSO variability during the mid to late Holocene when the fronts shifted polewards again. A strong circa 1550 year cycle is found in the Globigerina bulloides record which reflects the wider Southern Ocean signal with prominent cold phases centred at circa 9.2, 7.3, 5.8, 4.3, 2.7, 1.4 ka BP and, possibly the Little Ice Age, which have global counterparts.
description: Holocene oxygen (d18O) and carbon (d13C) isotope data on foraminifera from marine sediment core MD03-2611 collected in Murray Canyon, South Australia. delta 18O reproducibility = ±0.07 per mil
     Provided Keywords: pacific warm pool, El Nino, North Atlantic, foraminiferal biofacies, radiocarbon calibration, indonesian throughtflow, high-resolution, leeuwin current, ENSO, circulation
DOI: 10.25921/8scm-gc91
title: NOAA/WDS Paleoclimatology - Pederson - Charlie Russell Horseclub - PSME - ITRDB MT154

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: Upper Missouri River Basin Streamflow project NOAA Template Raw Measurements file added 2020-01-15.
DOI: 10.25921/85az-6q70
title: NOAA/WDS Paleoclimatology - Continental-scale temperature variability during the past two millennia

description: Past global climate changes had strong regional expression. To elucidate their spatio-temporal pattern, we reconstructed past temperatures for seven continental-scale regions during the past one to two millennia. The most coherent feature in nearly all of the regional temperature reconstructions is a long-term cooling trend, which ended late in the nineteenth century. At multi-decadal to centennial scales, temperature variability shows distinctly different regional patterns, with more similarity within each hemisphere than between them. There were no globally synchronous multi-decadal warm or cold intervals that define a worldwide Medieval Warm Period or Little Ice Age, but all reconstructions show generally cold conditions between ad 1580 and 1880, punctuated in some regions by warm decades during the eighteenth century. The transition to these colder conditions occurred earlier in the Arctic, Europe and Asia than in North America or the Southern Hemisphere regions. Recent warming reversed the long-term cooling; during the period ad 1971-2000, the area-weighted average reconstructed temperature was higher than any other time in nearly 1,400 years.
DOI: 10.25921/8n7a-va75
title: NOAA/WDS Paleoclimatology - Margolis fire data from Santa Fe Watershed ponderosa pine - IMPD USSPP001

description: The Santa Fe municipal watershed provides up to 40% of the city’s water and is at high risk of a stand-replacing fire that could threaten the water resource and cause severe ecological damage. Restoration and crown fire hazard reduction in the ponderosa pine (PP) forest is in progress, but the historic role of crown fire in the mixed-conifer/aspen (MC) and spruce-dominated forests is unknown but necessary to guide management here and in similar forests throughout the southwestern United States. The objective of our study was to use dendroecological techniques to reconstruct fire history and fire–climate relationships along an elevation, forest type, and fire regime gradient in the Santa Fe River watershed and provide historical ecological data to guide management. We combined systematic (gridded) sampling of forest age structure with targeted sampling of fire scars, tree-ring growth changes/injuries, and death dates to reconstruct fire occurrence and severity in the 7016 ha study area (elevation 2330–3650 m). Fire scars from 141 trees (at 41 plots) and age structure of 438 trees (from 26 transects) were used to reconstruct 110 unique fire years (1296–2008). The majority (79.0%) of fires burned during the late spring/early summer. Widespread fires that scarred more than 25% of the recording trees were more frequent in PP (mean fire interval (MFI)25% = 20.8 years) compared to the MC forest (31.6 years). Only 24% of the fires in PP were recorded in the MC forest, but these accounted for a large percent of all MC fires (69%).  Fire occurrence was associated with anomalously wet (and usually El Niño) years preceding anomalously dry (and usually La Niña) years both in PP and in the MC forest. Fire in the MC occurred during more severe drought (mean summer Palmer Drought Severity Index; PDSI = -2.59), compared to the adjacent PP forest (PDSI = -1.03). The last fire in the spruce forest (1685) was largely stand-replacing (1200 ha, 93% of sampled area), recorded as fire scars at 68% of plots throughout the MC and PP forests, and burned during a severe, regional drought (PDSI = -6.92). The drought–fire relationship reconstructed in all forest types suggests that if droughts become more frequent and severe, as predicted, the probability of large, severe fire occurrence will increase.
DOI: 10.13140/rg.2.2.26140.69765
title: Clementine x sour orange - fertilization - Nitrogen+seaweed extract , Nitrogen+Boron+Potassium , Nitrogen + Complesal (Compo) yield , Fruit mean weight, fruit quality - Citrus reticulata -
DOI: 10.25921/8sz9-vx46
title: NOAA/WDS Paleoclimatology - North Atlantic ODP Leg 162 Quaternary Sediment Spectral Reflectance Data

description: Sediment spectral reflectance measurements were generated aboard the JOIDES Resolution during Ocean Drilling Program Leg 162 shipboard operations.  The large size off the raw data set (over 1.3 gigabytes) and limited computer hard disk storage space precluded detailed analysis of the data sets at sea, although broad band averages were used as aides in developing splices and determining lithologic boundaries. This data report describes the methods used to collect these data and their shipboard and postcruise processing. These initial results provide the basis for further postcruise research.
description: Spectral reflectance data measured with Oregon State University's 
Split Core Analysis Track (SCAT) system for 9 cores collected 
during Ocean Drilling Program Leg 162, North Atlantic. 

Reflectance Spectra are measured in the following wavelengths:  
%UV reflectance   250-300nm 
%Blue reflectance 450-500nm
%Red reflectance  650-700nm
%nIR reflectance  850-900nm

Core locations: 
ODP907: 69°14.982'N, 12°41.898'W, 1802m water depth 
ODP980: 55°29.087'N, 14°42.134'W, 2172m water depth 
ODP981: 55°28.631'N, 14°39.052'W, 2173m water depth 
ODP982: 57°30.992'N, 15°52.001'W, 1135m water depth 
ODP983: 60°24.200'N, 23°38.437'W, 1983m water depth 
ODP984: 61°25.507'N, 24° 4.939'W, 1649m water depth 
ODP985: 66°56.490'N,  6°27.012'W, 2787m water depth 
ODP986: 77°20.438'N,  9° 4.661'E, 2051m water depth 
ODP987: 70°29.796'N, 17°56.243'W, 1671m water depth
DOI: 10.25921/8q2b-6r29
title: NOAA/WDS Paleoclimatology - Zgraggen - Faido - FASY - ITRDB SWIT237

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: 10.25921/8mvp-x134
title: NOAA/WDS Paleoclimatology - Buckley - ANM Phou Khao Khouay NBCA - PIMK - ITRDB LS001

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. 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: 10.25921/8asy-7m89
title: NOAA/WDS Paleoclimatology - Touchan - Mesa Alta - PSME - ITRDB NM584

description: Drought is a recurring phenomenon in the American Southwest. Since the frequency and severity of hydrologic droughts and other hydroclimatic events are of critical importance to the ecology and rapidly growing human population of this region, knowledge of long-term natural hydroclimatic variability is valuable for resource managers and policy-makers. An October-June precipitation reconstruction for the period AD 824-2007 was developed from multi-century tree-ring records of Pseudotsuga menziesii (Douglas-fir), Pinus strobiformis (Southwestern white pine) and Pinus ponderosa (Ponderosa pine) for the Jemez Mountains in Northern New Mexico. Calibration and verification statistics for the period 1896-2007 show a high level of skill, and account for a significant portion of the observed variance (>50%) irrespective of which period is used to develop or verify the regression model. Split-sample validation supports our use of a reconstruction model based on the full period of reliable observational data (1896-2007). A recent segment of the reconstruction (2000-2006) emerges as the driest 7-year period sensed by the trees in the entire record. That this period was only moderately dry in precipitation anomaly likely indicates accentuated stress from other factors, such as warmer temperatures. Correlation field maps of actual and reconstructed October-June total precipitation, sea surface temperatures and 500-mb geopotential heights show characteristics that are similar to those indicative of El Niño-Southern Oscillation patterns, particularly with regard to ocean and atmospheric conditions in the equatorial and north Pacific. Our 1184-year reconstruction of hydroclimatic variability provides long-term perspective on current and 20th century wet and dry events in Northern New Mexico, is useful to guide expectations of future variability, aids sustainable water management, provides scenarios for drought planning and as inputs for hydrologic models under a broader range of conditions than those provided by historical climate records.
description: NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/844q-c941
title: NOAA/WDS Paleoclimatology - Northern Morocco Last Millennium Speleothem Oxygen Isotope Data

description: Here we present a new composite record from two well-dated speleothem records from two caves in Northern Morocco. The high-resolution record covers the last millennium allowing to detect multi-decadal to centennial periodicities. Over the industrial period, d18O values of our speleothems are shown to be dominated by the main mode of decadal variability in the North Atlantic region: the North Atlantic Oscillation (NAO). Statistical analyses confirm the previously reported multi-decadal variability related to the influence of the Atlantic Multidecadal Oscillation (AMO) in the region. High power and persistent centennial-scale periodicities, similar to the Vries-Suess 200-year solar cycle, are observed as well. Indeed, comparison between solar activity reconstructions and our record confirms the in-phase relationship on centennial time-scales. Low d18O values, and hence negative phases of NAO that bring precipitation towards the Western Mediterranean, are observed during well-known solar minima periods. The results are consistent with previous models which describe low irradiance as a  trigger for southward shifts of precipitation-bearing westerlies during winter.
description: Oxygen isotope (d18O) data from stalagmites collected in 2 caves in Northern Morocco (Chaara Cave stalagmite CHA2 and Grotte de Piste stalagmite GP5)
DOI: 10.13140/rg.2.2.29830.37446
title: S3 Fig. Effects of Pitstop 2, EIPA, MβCD, dynasore, and chlorpromazine on recombinant VSV infection in HMVEC-L.
DOI: 10.15468/dl.hkp4d2
title: Occurrence Download

description: A dataset containing 1417 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pluteus aurantiorugosus"
 ]
}

 The dataset includes 1417 records from 124 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025148-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.13140/rg.2.2.34496.53769
title: Fe excess - toxicity- leaves - annual shoots - enzymes - elements
DOI: 10.25921/8d20-cs54
title: NOAA/WDS Paleoclimatology - Skinner fire data from Southwest (Blacks Mountain) - IMPD USSW_001

description: Despite a strong anthropogenic fingerprint on 20th Century wildland fire activity in the American West, climate remains a main driver. A better understanding of the spatiotemporal variability in fire-climate interactions is therefore crucial for fire management. Here, we present annually resolved, tree-ring based fire records for four regions in the American West that extend back to 1400 CE. In all regions, years with high fire activity were characterized by widespread yet regionally distinct summer droughts. Overall fire activity was high in late Medieval times, when much of the American West was affected by mega-droughts. A distinct decline in fire activity in the late 16th Century corresponds with anomalously low temperatures during the Little Ice Age and a decline in Native American fire use. The high spatiotemporal resolution of our fire record discloses a time-frequency dependent climatic influence on wildfire regimes in the American West that needs to be accounted for in fire models.
description: These fire-scar records were provided via a USDI/USDA  Interagency Joint Fire Sciences Program database project (Taylor,  A. H., C. N. Skinner, A. M. Carleton, and S. L. Stephens. 2007. Fire climate interactions and predicting fire season severity in the Mediterranean climate areas of California, southern Oregon, and western Nevada. Rep. 03-1-1-22. Joint Fire Sci. Program, Boise, Idaho.). Fire scar-records were selected from individual trees that were recording fire prior to the year 1500. Data from additional sites were also included in the Southwest site, and the original records for these sites are available via the International Multiproxy Paleofire Database (http://www.ncdc.noaa.gov/paleo/impd/paleofire.html):
Site Name, Latitude (degrees N), Longitude (degrees W), Principal Investigator
Black Mountain,33.36,108.21,Baisan and Swetnam
Canada Bonia,35.91,106.37,Touchan et al.
Cerro Bandera,35,108.1,Grissino-Mayer and Swetnam
Fillmore Canyon,32.33,106.56,Morino et al.
Hitchcock,32.38,110.68,1,Baisan and Morino
Hoya de Cibola Lava Flow,34.89,108.15,Grissino-Mayer and Swetnam
Josephine Saddle,31.69,110.86,Gungle et al.
La Luz trail Sandia Mountains,35.21,106.46,Baisan and Swetnam
La Marchanita,34.99,108.06,Grissino-Mayer and Swetnam
Mesita Blanca,34.88,108.07,Grissino-Mayer and Swetnam
Mica Mountain,32.2,110.5,Baisan and Swetnam
Monument Canyon Natural Area,35.8,106.62,Swetnam et al.
N Alamo Bog,35.92,106.59,Morino et al.
Old Pine Bluff,32.34,106.55,Morino et al.
Peters Flat,32.46,109.56,Grissino-Mayer
Rincon Peak,32.12,110.52,Baisan
Rito de los Frijoles,35.82,106.38,Swetnam et al.
Rock House Spring,32.33,106.55,Morino and Swetnam
Round Mountain,35.87,105.64,Touchan
DOI: 10.25921/8av0-rq21
title: NOAA/WDS Paleoclimatology - Graumlich - Grass Mountain #1 - PIAL - ITRDB MT158

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: Upper Missouri River Basin Streamflow project NOAA Template Raw Measurements file added 2020-01-15.