A 477-year dendrohydrological assessment of drought severity for Tsable River, Vancouver Island, British Columbia, Canada

Coulthard, Bethany; Smith, Dan J.

doi:10.1002/hyp.10726

Cited by 14 publications

(11 citation statements)

References 49 publications

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“…As appears, it is the annual July-June (KAZ) or August-July (BID) precipitation. Thereby, Seascorr analysis can be especially useful in such a direction as the long-term reconstruction of climatic and other environmental variables (e.g., Meko et al, 2013;Touchan et al, 2014Touchan et al, , 2016Shah et al, 2015;Coulthard and Smith, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…At the same time, response to the secondary factor is calculated by partial correlation coefficients, i.e. taking into account the effect of its relationship with the primary factor (Meko et al, 2013;Touchan et al, 2014;Lavergne et al, 2015;Shah et al, 2015;Coulthard and Smith, 2016). There are specialized computer programs that allow automation of dendroclimatic analysis algorithms, for example the Seascorr module for MATLAB developed at the Laboratory of Tree-Ring Research, the University of Arizona (Meko et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Climatic Response of Conifer Radial Growth in Forest-Steppes of South Siberia: Comparison of Three Approaches

Belokopytova

Babushkina

Zhirnova

et al. 2018

Contemp. Probl. Ecol.

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We compared three approaches to study climatic signals of Pinus sylvestris and Larix sibirica tree-ring width chronologies from the forest-steppe zone of South Siberia, where both temperature and precipitation limit the conifer tree growth: 1) paired correlation of chronologies with monthly climatic variables; 2) paired and partial correlations with monthly and seasonal series of primary and secondary climatic factors, calculated in the Seascorr program; 3) paired correlation with a 15-day moving average series of climatic variables. The comparison showed that simple paired correlation with monthly series as the simplest approach could be used for a wide range of dendroclimatic studies, both as a main procedure and for preliminary analysis. The Seascorr analysis is the most suitable for assessing climate-growth relationship in extreme growth conditions and for reconstructions of extremes, e.g. droughts, and of their impact periods. The application of the 15-day moving average series is limited by availability of daily climatic data, but it describes the seasonal window of climatic response with high precision. Altogether, the combination of three approaches allowed to explore the spatial-temporal pattern of the conifers radial growth climatic response in South Siberia.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Climatic Response of Conifer Radial Growth in Forest-Steppes of South Siberia: Comparison of Three Approaches

Belokopytova

Babushkina

Zhirnova

et al. 2018

Contemp. Probl. Ecol.

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“…George et al, 2010, 2014. Treering proxies may also record winter snow accumulation, either via the subsequent influence of spring melt on growing season water balance or more directly via limitations on the initiation of growth Coulthard and Smith, 2016). Tree rings have also been used with considerable success to reconstruct river flow (e.g., Stockton and Jacoby, 1976;Meko et al, 2007;Maxwell et al, 2011;Cook et al, 2013b;Harley et al, 2017) and runoff ratio (Lehner et al, 2017), as tree growth can reflect an integrated seasonal moisture balance signal in a fashion similar to watersheds.…”

Section: Tree Ringsmentioning

confidence: 99%

Comparing proxy and model estimates of hydroclimate variability and change over the Common Era

Smerdon¹,

Luterbacher²,

Phipps³

et al. 2017

Clim. Past

102

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Abstract. Water availability is fundamental to societies and ecosystems, but our understanding of variations in hydroclimate (including extreme events, flooding, and decadal periods of drought) is limited because of a paucity of modern instrumental observations that are distributed unevenly across the globe and only span parts of the 20th and 21st centuries. Such data coverage is insufficient for characterizing hydroclimate and its associated dynamics because of its multidecadal to centennial variability and highly regionalized spatial signature. High-resolution (seasonal to decadal) hydroclimatic proxies that span all or parts of the Common Era (CE) and paleoclimate simulations from climate models are therefore important tools for augmenting our understanding of hydroclimate variability. In particular, the comparison of the two sources of information is critical for addressing the uncertainties and limitations of both while enriching each of their interpretations. We review the principal proxy data available for hydroclimatic reconstructions over the CE and highlight the contemporary understanding of how these proxies are interpreted as hydroclimate indicators. We also review the available last-millennium simulations from fully coupled climate models and discuss several outstanding challenges associated with simulating hydroclimate variability and change over the CE. A specific review of simulated hydroclimatic changes forced by volcanic events is provided, as is a discussion of expected improvements in estimated radiative forcings, models, and their implementation in the future. Our review of hydroclimatic proxies and last-millennium model simulations is used as the basis for articulating a variety of considerations and best practices for how to perform proxy-model comparisons of CE hydroclimate. This discussion provides a framework for how best to evaluate hydroclimate variability and its associated dynamics using these comparisons and how they can better inform interpretations of both proxy data and model simulations. We subsequently explore means of using proxy-model comparisons to better constrain and characterize future hydroclimate risks. This is explored specifically in the context of several examples that demonstrate how proxy-model comparisons can be used to quantitatively constrain future hydroclimatic risks as estimated from climate model projections.

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“…In addition to the spatial distribution of volcanic aerosols, descriptions of volcanic aerosol cloud properties are also critical for simulations of the hydroclimate response to past eruptions. Substantial differences exist between reference volcanic forcing datasets in terms of overall aerosol loading and their latitudinal structure (Gao et al, 2008;Crowley and Unterman, 2013;Sigl et al, 2015). The differences include the timing, magnitude, and spatial structure of the forcing, as well as the reported variable (e.g., AOD or aerosol mass).…”

Section: Natural Forcing Of Hydroclimatementioning

confidence: 99%

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Smerdon¹

2017

Preprint

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Water availability is fundamental to societies and ecosystems, but our understanding of variations in hydroclimate (including extreme events, flooding, and decadal periods of drought) is limited because of a paucity of modern instrumental observations that are distributed unevenly across the globe and only span parts of the 20th and 21st centuries. Such data coverage is insufficient for characterizing hydroclimate and its associated dynamics because of its multidecadal to centennial variability and highly regionalized spatial signature. High-resolution (seasonal to decadal) hydroclimatic proxies that span all or parts of the Common Era (CE) and paleoclimate simulations from climate models are therefore important tools for augmenting our understanding of hydroclimate variability. In particular, the comparison of the two sources of information is critical for addressing the uncertainties and limitations of both while enriching each of their interpretations. We review the principal proxy data available for hydroclimatic reconstructions over the CE and highlight the contemporary understanding of how these proxies are interpreted as hydroclimate indicators. We also review the available last-millennium simulations from fully coupled climate models and discuss several outstanding challenges associated with simulating hydroclimate variability and change over the CE. A specific review of simulated hydroclimatic changes forced by volcanic events is provided, as is a discussion of expected improvements in estimated radiative forcings, models, and their implementation in the future. Our review of hydroclimatic proxies and last-millennium model simulations is used as the basis for articulating a variety of considerations and best practices for how to perform proxy-model comparisons of CE hydroclimate. This discussion provides a framework for how best to evaluate hydroclimate variability and its associated dynamics using these comparisons and how they can better inform interpretations of both proxy data and model simulations. We subsequently explore means of using proxy-model comparisons to better constrain and characterize future hydroclimate risks. This is explored specifically in the context of several examples that demonstrate how proxy-model comparisons can be used to quantitatively constrain future hydroclimatic risks as estimated from climate model projections.

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A 477-year dendrohydrological assessment of drought severity for Tsable River, Vancouver Island, British Columbia, Canada

Cited by 14 publications

References 49 publications

Climatic Response of Conifer Radial Growth in Forest-Steppes of South Siberia: Comparison of Three Approaches

Climatic Response of Conifer Radial Growth in Forest-Steppes of South Siberia: Comparison of Three Approaches

Comparing proxy and model estimates of hydroclimate variability and change over the Common Era

Response File for All Reviews

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