Publication Abstracts

Shindell et al. 2006

Shindell, D.T., G. Faluvegi, R.L. Miller, G.A. Schmidt, J.E. Hansen, and S. Sun, 2006: Solar and anthropogenic forcing of tropical hydrology. Geophys. Res. Lett., 33, L24706, doi:10.1029/2006GL027468.

Holocene climate proxies suggest substantial correlations between tropical meteorology and solar variations, but these have thus far not been explained. Using a coupled ocean-atmosphere-composition model forced by sustained multi-decadal irradiance increases, we show that greater tropical temperatures alter the hydrologic cycle, enhancing the climatological precipitation maxima in the tropics while drying the subtropical subsidence regions. The shift is enhanced by tropopause region ozone increases, and the model captures the pattern inferred from paleoclimate records. The physical process we describe likely affected past civilizations, including the Maya, Moche, and Ancestral Puebloans who experienced drought coincident with increased irradiance during the late medieval (∼900-1250). Similarly, decreased irradiance may have affected cultures via a weakened monsoon during the Little Ice Age (∼1400-1750). Projections of 21st-century climate change yield hydrologic cycle changes via similar processes, suggesting a strong likelihood of increased subtropical drought as climate warms.

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BibTeX Citation

  author={Shindell, D. T. and Faluvegi, G. and Miller, R. L. and Schmidt, G. A. and Hansen, J. E. and Sun, S.},
  title={Solar and anthropogenic forcing of tropical hydrology},
  journal={Geophys. Res. Lett.},

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RIS Citation

ID  - sh02400t
AU  - Shindell, D. T.
AU  - Faluvegi, G.
AU  - Miller, R. L.
AU  - Schmidt, G. A.
AU  - Hansen, J. E.
AU  - Sun, S.
PY  - 2006
TI  - Solar and anthropogenic forcing of tropical hydrology
JA  - Geophys. Res. Lett.
VL  - 33
SP  - L24706
DO  - 10.1029/2006GL027468
ER  -

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