Publication Abstracts

Steiger et al. 2018

Steiger, N.J., J.E. Smerdon, E.R. Cook, and B.I. Cook, 2018: A reconstruction of global hydroclimate and dynamical variables over the Common Era. Sci. Data, 5, 180086, doi:10.1038/sdata.2018.86.

Hydroclimate extremes critically affect human and natural systems, but there remain many unanswered questions about their causes and how to interpret their dynamics in the past and in climate change projections. These uncertainties are due, in part, to the lack of long-term, spatially resolved hydroclimate reconstructions and information on the underlying physical drivers for many regions. Here we present the first global reconstructions of hydroclimate and associated climate dynamical variables over the past two thousand years. We use a data assimilation approach tailored to reconstruct hydroclimate that optimally combines 2,978 paleoclimate proxy-data time series with the physical constraints of an atmosphere-ocean climate model. The global reconstructions are annually or seasonally resolved and include two spatiotemporal drought indices, near-surface air temperature, an index of North Atlantic variability, the location of the intertropical convergence zone, and monthly Niño indices. This database, called the Paleo Hydrodynamics Data Assimilation product (PHYDA), will provide a critical new platform for investigating the causes of past climate variability and extremes, while informing interpretations of future hydroclimate projections.

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BibTeX Citation

@article{st07220t,
  author={Steiger, N. J. and Smerdon, J. E. and Cook, E. R. and Cook, B. I.},
  title={A reconstruction of global hydroclimate and dynamical variables over the Common Era},
  year={2018},
  journal={Scientific Data},
  volume={5},
  pages={180086},
  doi={10.1038/sdata.2018.86},
}

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RIS Citation

TY  - JOUR
ID  - st07220t
AU  - Steiger, N. J.
AU  - Smerdon, J. E.
AU  - Cook, E. R.
AU  - Cook, B. I.
PY  - 2018
TI  - A reconstruction of global hydroclimate and dynamical variables over the Common Era
JA  - Sci. Data
JO  - Scientific Data
VL  - 5
SP  - 180086
DO  - 10.1038/sdata.2018.86
ER  -

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