Publication Abstracts

Pérez García-Pando et al. 2016

Pérez García-Pando, C., R.L. Miller, J.P. Perlwitz, S. Rodríguez, and J.M. Prospero, 2016: Predicting the mineral composition of dust aerosols: Insights from elemental composition measured at the Izaña Observatory. Geophys. Res. Lett., 43, no. 19, 10520-10529, doi:10.1002/2016GL069873.

Regional variations of dust mineral composition are fundamental to climate impacts but generally neglected in climate models. A challenge for models is that atlases of soil composition are derived from measurements following wet sieving, which destroys the aggregates potentially emitted from the soil. Aggregates are crucial to simulating the observed size distribution of emitted soil particles. We use an extension of brittle fragmentation theory in a global dust model to account for these aggregates. Our method reproduces the size-resolved dust concentration along with the approximately size-invariant fractional abundance of elements like Fe and Al in the decade-long aerosol record from the Izaña Observatory, off the coast of West Africa. By distinguishing between Fe in structural and free forms, we can attribute improved model behavior to aggregation of Fe and Al-rich clay particles. We also demonstrate the importance of size-resolved measurements along with elemental composition analysis to constrain models.

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BibTeX Citation

@article{pe07600p,
  author={Pérez García-Pando, C. and Miller, R. L. and Perlwitz, J. P. and Rodríguez, S. and Prospero, J. M.},
  title={Predicting the mineral composition of dust aerosols: Insights from elemental composition measured at the Izaña Observatory},
  year={2016},
  journal={Geophys. Res. Lett.},
  volume={43},
  number={19},
  pages={10520--10529},
  doi={10.1002/2016GL069873},
}

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RIS Citation

TY  - JOUR
ID  - pe07600p
AU  - Pérez García-Pando, C.
AU  - Miller, R. L.
AU  - Perlwitz, J. P.
AU  - Rodríguez, S.
AU  - Prospero, J. M.
PY  - 2016
TI  - Predicting the mineral composition of dust aerosols: Insights from elemental composition measured at the Izaña Observatory
JA  - Geophys. Res. Lett.
VL  - 43
IS  - 19
SP  - 10520
EP  - 10529
DO  - 10.1002/2016GL069873
ER  -

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