Publication Abstracts
Palmer et al. 2015
Palmer, J.G., E.R. Cook, C.S.M. Turney, K. Allen, P. Fenwick, , A. O'Donnell, J. Lough, P. Grierson, and P. Baker, 2015: Drought variability in the eastern Australia and New Zealand summer drought atlas (ANZDA, CE 1500-2012) modulated by the Interdecadal Pacific Oscillation. Environ. Res. Lett., 10, no. 12, 124002, doi:10.1088/1748-9326/10/12/124002.
Agricultural production across eastern Australia and New Zealand is highly vulnerable to drought, but there is a dearth of observational drought information prior to CE 1850. Using a comprehensive network of 176 drought-sensitive tree-ring chronologies and one coral series, we report the first Southern Hemisphere gridded drought atlas extending back to CE 1500. The austral summer (December-February) Palmer drought sensitivity index reconstruction accurately reproduces historically documented drought events associated with the first European settlement of Australia in CE 1788, and the leading principal component explains over 50% of the underlying variance. This leading mode of variability is strongly related to the Interdecadal Pacific Oscillation tripole index (IPO), with a strong and robust antiphase correlation between (1) eastern Australia and the New Zealand North Island and (2) the South Island. Reported positive, negative, and neutral phases of the IPO are consistently reconstructed by the drought atlas although the relationship since CE 1976 appears to have weakened.
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BibTeX Citation
@article{pa05500d,
author={Palmer, J. G. and Cook, E. R. and Turney, C. S. M. and Allen, K. and Fenwick, P. and Cook, B. I. and O'Donnell, A. and Lough, J. and Grierson, P. and Baker, P.},
title={Drought variability in the eastern Australia and New Zealand summer drought atlas (ANZDA, CE 1500-2012) modulated by the Interdecadal Pacific Oscillation},
year={2015},
journal={Environmental Research Letters},
volume={10},
number={12},
pages={124002},
doi={10.1088/1748-9326/10/12/124002},
}
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RIS Citation
TY - JOUR ID - pa05500d AU - Palmer, J. G. AU - Cook, E. R. AU - Turney, C. S. M. AU - Allen, K. AU - Fenwick, P. AU - Cook, B. I. AU - O'Donnell, A. AU - Lough, J. AU - Grierson, P. AU - Baker, P. PY - 2015 TI - Drought variability in the eastern Australia and New Zealand summer drought atlas (ANZDA, CE 1500-2012) modulated by the Interdecadal Pacific Oscillation JA - Environ. Res. Lett. JO - Environmental Research Letters VL - 10 IS - 12 SP - 124002 DO - 10.1088/1748-9326/10/12/124002 ER -
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