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  • 1
    Online Resource
    Online Resource
    Dordrecht :Springer Netherlands,
    Keywords: Dendroclimatology. ; Climatic changes--Measurement. ; Dendroklimatologie. swd. ; Aufsatzsammlung. ; Electronic books.
    Description / Table of Contents: Providing a state-of-the-art review of the field, this volume presents current advances in dendroclimatology, and looks ahead to potential future developments. The material is of particular interest to climatologists, hydrologists, ecologists and archeologists.
    Type of Medium: Online Resource
    Pages: 1 online resource (365 pages)
    Edition: 1st ed.
    ISBN: 9781402057250
    Series Statement: Developments in Paleoenvironmental Research Series ; v.11
    DDC: 551.609
    Language: English
    Note: Intro -- Preface -- Contents -- Contributors -- Part I Introductory Section -- 1 High-Resolution Paleoclimatology -- 1.1 Introduction -- 1.2 Data Sources for High-Resolution Paleoclimatology -- 1.3 Chronology and Replication -- 1.4 High-Resolution Sampling -- 1.5 Relationships Between Natural Archives and Climate -- 1.6 Uniformitarianism -- 1.7 Frequency Response -- 1.8 High-Resolution Proxies: Challenges and Opportunities -- References -- 2 Dendroclimatology in High-Resolution Paleoclimatology -- 2.1 Introduction -- 2.2 Sample Design in Dendroclimatology -- 2.2.1 Natural Archives and Proxy Climate Records -- 2.2.2 Single Site Chronologies -- 2.2.3 Networks and the Relationship Between Crossdating and the Emergence of Climate Signal from Networks of Tree-Ring Data -- 2.3 Climate Signal in Tree-Ring Properties -- 2.3.1 Identifying Signal---An Empirical-Statistical Approach -- 2.3.2 Identifying Climate Signal---Process-Modeling Approaches -- 2.4 Stability of the Climate Signal -- 2.4.1 Temporal Stability -- 2.4.2 Recent Reports of Divergence Between Temperature and Tree-Ring Density and Width -- 2.5 The Quest for Unbiased Chronologies -- 2.5.1 The Problem -- 2.6 Final Thoughts -- References -- Part II Scientific Bases of Dendroclimatology -- 3 How Well Understood Are the Processes that Create Dendroclimatic Records? A Mechanistic Model of the Climatic Control on Conifer Tree-Ring Growth Dynamics -- 3.1 Introduction -- 3.1.1 The Substrate Source-Sink Hypothesis -- 3.1.2 The Cambial Control Hypothesis -- 3.2 Cambial Activity -- 3.3 Cell Expansion -- 3.4 Cell Wall Thickening -- 3.5 Effect of Climatic Factors on Tree-Ring Structure (Light, Temperature, and Water) -- 3.5.1 Temperature -- 3.5.2 Water -- 3.5.3 Light -- 3.6 Toward a Quantitative Description of Cambial Activity and Xylem Differentiation Under Environmental Control. , 3.7 Process Model Description -- 3.7.1 Growth (Environmental) Block -- 3.7.2 Cambial Block -- 3.8 Model Applications -- 3.8.1 Local Simulations -- 3.8.2 Mesoscale Network Simulations -- 3.8.3 Large Network Intercomparisons -- 3.8.4 Uncertainties and Caveats -- 3.9 Conclusion -- References -- 4 Uncertainty, Emergence, and Statistics in Dendrochronology -- 4.1 Introduction -- 4.2 Uncertainty -- 4.3 Emergence -- 4.4 Statistics -- 4.5 Correlation and Response Function Analysis -- 4.6 Response Functions and Empirical Signal Strength -- 4.7 Additional Response Function Interpretations -- 4.8 Some Implications for Climate Reconstruction -- 4.9 Concluding Remarks -- Appendix -- References -- 5 A Closer Look at Regional Curve Standardization of Tree-Ring Records: Justification of the Need, a Warning of Some Pitfalls, and Suggested Improvements in Its Application -- 5.1 Introduction -- 5.2 Frequency Limitation in Curve-Fitting Standardization -- 5.3 Background and Description of Regional Curve Standardization -- 5.4 Potential Biases in RCS -- 5.4.1 'Trend-in-Signal' Bias -- 5.4.2 'Differing-Contemporaneous-Growth-Rate' Bias -- 5.4.3 'Modern-Sample' Bias -- 5.4.3.1 Relationship Between Growth Rate and Longevity -- 5.4.3.2 Growth Rate/Longevity Association Distorts RCS Curves -- 5.5 Particular Problems Associated with the Application of RCS to Modern (i.e., Living-Tree) Sample Data -- 5.6 Examples of Issues that Arise in Various Applications of RCS -- 5.6.1 Inappropriate RCS Definition -- 5.6.2 Application of RCS Across Wide Species and Climate Ranges -- 5.6.3 Adaption of RCS to Account for Non-climate Bias -- 5.7 Discussion and Suggested Directions for RCS Development -- 5.8 Conclusions -- Appendix: Signal-Free Standardization -- Background and Rationale -- Implementing Signal-Free Standardization -- References. , 6 Stable Isotopes in Dendroclimatology: Moving Beyond `Potential' -- 6.1 Scope and Background -- 6.2 Theoretical Background -- 6.2.1 Stable Carbon Isotope Theory -- 6.2.2 Stable Oxygen and Hydrogen Isotope Theory -- 6.3 Sampling and Measurement -- 6.3.1 A Note on New Measurement Techniques -- 6.3.2 Data Treatment of Stable Isotope Time Series -- 6.4 Progress to Date -- 6.5 Future Directions -- 6.5.1 Climate of the Moist Midlatitudes -- 6.5.2 Different Climate Signals -- 6.5.3 Tropical Isotope Dendroclimatology -- 6.5.4 Long-Term Response of δ13C to Rising CO2 Concentrations -- 6.6 Is It Worth It? A Reply to Hughes (2002) -- References -- Part III Reconstruction of Climate Patterns and Values Relative to Today's Climate -- 7 Dendroclimatology from Regional to Continental Scales: Understanding Regional Processes to Reconstruct Large-Scale Climatic Variations Across the Western Americas -- 7.1 Introduction -- 7.2 Oscillatory Modes of Climate Variability Across the Western Cordilleras -- 7.2.1 El Niño/Southern Oscillation (ENSO) -- 7.2.2 Pacific Interdecadal Mode -- 7.2.3 Annular Modes -- 7.3 Tree-Ring Records Across the Western Americas -- Box 7.1 Climate signals in Gulf of Alaska tree-ring records -- 7.3.1 Temperature-Sensitive Records -- Box 7.2 Studies from the Canadian Cordillera -- 7.3.1.1 Extratropical Pacific Ocean -- Box 7.3 Climate signals in Patagonian upper-elevation tree-ring records -- 7.3.1.2 Tropical Pacific Ocean -- 7.3.1.3 High-Latitude Oscillations -- 7.3.2 Precipitation-Sensitive Records -- Box 7.4 Spatial patterns of drought and wetness regimes over western North America -- Box 7.5 Western United States droughts in medieval times linked to changes over the Pacific basin -- Box 7.6 A network of tree-ring chronologies for northern and central Mexico. , Box 7.7 The Polylepis tarapacana chronologies: The highest elevation tree-ring records worldwide -- 7.3.2.1 Subtropical Precipitation and ENSO -- Box 7.8 Tree-ring chronologies from Austrocedrus chilensis in central Chile -- 7.3.2.2 Dominant Oscillations in Precipitation Variations -- 7.4 Future Research -- Box 7.9 Monitoring of tree growth dynamics to improve dendroclimatic models -- 7.5 Discussion and Conclusions -- References -- Part IV Applications of Dendroclimatology -- 8 Application of Streamflow Reconstruction to Water Resources Management -- 8.1 Introduction -- 8.2 Historical Background of Streamflow Reconstructions -- 8.3 Contributions to the Study of Water Resources -- 8.3.1 Extensions of Gauge Flow Records -- 8.3.2 Probabilistic Interpretation of Streamflow Reconstructions: Example for the Colorado River -- 8.3.3 Applications to Water Resource Management: A Case Study Using the Denver Water Board -- 8.3.4 Informing the Public -- 8.4 Challenges -- 8.4.1 High Flows -- 8.4.2 Seasonality -- 8.4.3 Uncertainty -- 8.4.4 Communication -- 8.4.5 Climate Change -- 8.5 Conclusion -- References -- 9 Climatic Inferences from Dendroecological Reconstructions -- 9.1 Introduction -- 9.2 Examples of Dendroecological-Climate Reconstructions -- 9.2.1 Fire History and Fire Climatology -- 9.2.2 Western Spruce Budworm Outbreaks and Climatic Entrainment -- 9.2.2.1 Confounding of Dendroclimatic Signals by Insect Outbreaks -- 9.2.3 Regional Tree Demography and Climate Effects -- 9.3 The Late Eighteenth-Century, Early Nineteenth-Century Fire Gap -- 9.4 Ecologically Effective Climate Change -- References -- 10 North American Tree Rings, Climatic Extremes, and Social Disasters -- 10.1 Introduction -- 10.2 Tree-Ring Analyses of Climate Extremes and Human Impacts -- 10.3 Social Impacts of Climate Extremes During the Historic Era. , 10.4 Suspected Social Impacts of Drought Extremes During the Precolonial Era -- 10.5 Summary -- References -- Part V Overview -- 11 Tree Rings and Climate: Sharpening the Focus -- 11.1 Introduction -- 11.2 Spectrum of Climate Variability -- 11.3 Reconstruction of Regional to Hemispheric Temperature for Recent Centuries -- 11.4 Causes of Climate Variability in the Past Millennium -- 11.5 Climate Sensitivity -- 11.6 Circulation Features and Regional Climates -- 11.7 The Current State of Play -- 11.8 The Importance of Networks -- 11.9 Growth in the Applications of Dendroclimatology: the 1990s to Present -- 11.10 Prospects for Dendroclimatology -- References -- Index.
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  • 2
    Online Resource
    Online Resource
    Berlin, Heidelberg :Springer Berlin / Heidelberg,
    Keywords: Hurricanes-Social aspects-United States. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (294 pages)
    Edition: 1st ed.
    ISBN: 9783642606724
    DDC: 363.34/922/091821
    Language: English
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  • 3
    Online Resource
    Online Resource
    Dordrecht :Springer Netherlands,
    Keywords: Climatic changes. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (296 pages)
    Edition: 1st ed.
    ISBN: 9789401589055
    DDC: 551.6914/3
    Language: English
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  • 4
    Keywords: Kongreß Konferenz ; Report ; Forschungsbericht ; Konferenzschrift
    Type of Medium: Book
    Pages: XII, 301 S , graph. Darst., Kt
    Series Statement: Berichte aus dem Institut für Meereskunde an der Christian-Albrechts-Universität 265
    DDC: 551.5/24
    Language: English
    Note: Literaturangaben
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 383 (1996), S. 152-155 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Some recent studies of high-elevation records in Europe12'13 have shown that surface air temperature measured at several isolated mountain peaks has risen by more than 1 á°C during the past century. The inferred warming is consistent with oxygen isotopic changes (dl8O) which ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Climatic change 36 (1997), S. 253-279 
    ISSN: 1573-1480
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Differential temperature changes with altitude can shed light on the relative importance of natural versus anthropogenic climatic change. There has been heightened interest in this subject recently due to the finding that high-elevation tropical glaciers have been retreating and that significant melting from even the highest alpine regions has occurred in some areas during the past 20 years or so, as recorded in ice core records, which do not reveal any similar period during previous centuries to millennia. In this paper we find evidence for appreciable differences in mean temperature changes with elevation during the last several decades of instrumental records. The signal appears to be more closely related to increases in daily minimum temperature than changes in the daily maximum. The changes in surface temperature vary spatially, with Europe (particularly western Europe), and parts of Asia displaying the strongest high altitude warming during the period of record. High-elevation climate records of long standing taken at a number of mountain tops throughout the world, but primarily in Europe, are available from a number of countries. In some cases, meteorological observations at these unique mountain sites have been discontinued for a variety of reasons, usually budgetary. It is hoped that the papers published in this special issue of Climatic Change can contribute to a reassessment of the value of continuing climate measurements at these mountain observatories by the appropriate entities, so that we may continue to have access to climate information from the ’tops of the world‘.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1573-1480
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract In this paper we discuss data available from Argentina, Mexico, the United States and Canada that are suitable for the analysis of extreme temperature and precipitation events. We also discuss some of the problems of homogeneity and quality control that can potentially affect the observation of extreme values. It is clear that even in countries like the United States and Canada that have a potentially rich source of climate data there are still problems in obtaining homogeneous data necessary to perform thorough studies of time varying changes in extreme events. These types of problems may be compounded if data are needed from countries that do not have a tradition of maintaining large climate archives or observing networks. We also provide two examples of analyses that can be performed with these types of data: (1) the development of climate extremes indices for Canada, and (2) analyses of freezing events for Florida and the effect on the citrus industry. The Canadian example provides a good basis for countries to take indices developed for one country or region and through minor modifications make the index relevant to their own needs. The analysis of freezing events in Florida is a timely example of how extreme events have both ecological and societal impact.
    Type of Medium: Electronic Resource
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  • 8
    Publication Date: 2019-07-17
    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.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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  • 9
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    In:  http://aquaticcommons.org/id/eprint/14577 | 8 | 2014-10-27 19:07:30 | 14577
    Publication Date: 2021-06-28
    Description: We have applied a number of objective statistical techniques to define homogeneous climatic regions for the Pacific Ocean, using COADS (Woodruff et al 1987) monthly sea surface temperature (SST) for 1950-1989 as the key variable. The basic data comprised all global 4°x4° latitude/longitude boxes with enough data available to yield reliable long-term means of monthly mean SST. An R-mode principal components analysis of these data, following a technique first used by Stidd (1967), yields information about harmonics of the annual cycles of SST. We used the spatial coefficients (one for each 4-degree box and eigenvector) as input to a K-means cluster analysis to classify the gridbox SST data into 34 global regions, in which 20 comprise the Pacific and Indian oceans. Seasonal time series were then produced for each of these regions. For comparison purposes, the variance spectrum of each regional anomaly time series was calculated. Most of the significant spectral peaks occur near the biennial (2.1-2.2 years) and ENSO (~3-6 years) time scales in the tropical regions. Decadal scale fluctuations are important in the mid-latitude ocean regions.
    Keywords: Atmospheric Sciences ; Oceanography ; PACLIM
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 55-62
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  • 10
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    In:  http://aquaticcommons.org/id/eprint/14576 | 8 | 2014-10-27 21:05:42 | 14576
    Publication Date: 2021-06-28
    Description: Latin America has been shown to be susceptible to climatic anomalies during El Niño/Southern Oscillation (ENSO) events (eg, Aceituno 1988; Ropelewshi and Halpert 1987; Kiladis and Diaz 1989). While these studies have emphasized ENSO-related rainfall and temperature anomalies over Central and South America, less work has been done on the climatic effects of ENSO over the Mexican region. In this study we are investigating interannual and intraseasonal fluctuation in temperature and precipitation over the southwestern United States and Mexico since the turn of the century. We are particularly interested in the effects of ENSO on the interannual variability over this region. This report focuses on the association between ENSO and interannual variability of precipitation over Mexico.
    Keywords: Atmospheric Sciences ; Oceanography ; PACLIM
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 63-70
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