The role of extreme rain events in driving tree growth across a continental-scale climatic range in Australia
Cite this dataset
O'Donnell, Alison; Renton, Michael; Allen, Kathryn; Grierson, Pauline (2021). The role of extreme rain events in driving tree growth across a continental-scale climatic range in Australia [Dataset]. Dryad. https://doi.org/10.5061/dryad.kkwh70s4d
Abstract
Methods
To account for potential age-related decline in ring width, we statistically detrended the raw ring-width measurements to remove age-related (non-climatic) trends and converted them to ring-width indices (RWI) as residuals from the detrending curve (Cook and Peters 1997). Ring-width series were first power-transformed to stabilise variance (Cook and Peters 1997) and detrended using an age-dependent spline. All series for all sites were detrended in a signal free environment (Melvin and Briffa 2008) using the RCSigFree program (http://www.ldeo.columbia.edu/tree-ring-laboratory/resources/software).
Usage notes
This dataset contains three tree-ring width chronologies from Western Australia. Data are stored in decadal (Tucson) format.
All tree rings are dated using the Schulman convention - the year refers to the calendar year in which growth began. For the CHR site (tropical northern Australia), growth begins in the Austral summer (~Oct-Nov). For the LTY and LDE sites (Mediterranean semi-arid southern Australia), growth begins in Austal Autumn (~Feb-Mar).
Funding
Australian Research Council, Award: DP170101033