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  • Feng, Ran (author)

Past terrestrial hydroclimate sensitivity controlled by Earth system feedbacks

  • Article/chapterEnglish2022

Publisher, publication year, extent ...

  • 2022-03-14
  • Springer Science and Business Media LLC,2022
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-203455
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-203455URI
  • https://doi.org/10.1038/s41467-022-28814-7DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Despite tectonic conditions and atmospheric CO2 levels (pCO2) similar to those of present-day, geological reconstructions from the mid-Pliocene (3.3-3.0 Ma) document high lake levels in the Sahel and mesic conditions in subtropical Eurasia, suggesting drastic reorganizations of subtropical terrestrial hydroclimate during this interval. Here, using a compilation of proxy data and multi-model paleoclimate simulations, we show that the mid-Pliocene hydroclimate state is not driven by direct CO2 radiative forcing but by a loss of northern high-latitude ice sheets and continental greening. These ice sheet and vegetation changes are long-term Earth system feedbacks to elevated pCO2. Further, the moist conditions in the Sahel and subtropical Eurasia during the mid-Pliocene are a product of enhanced tropospheric humidity and a stationary wave response to the surface warming pattern, which varies strongly with land cover changes. These findings highlight the potential for amplified terrestrial hydroclimate responses over long timescales to a sustained CO2 forcing.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Bhattacharya, Tripti (author)
  • Otto-Bliesner, Bette L. (author)
  • Brady, Esther C. (author)
  • Haywood, Alan M. (author)
  • Tindall, Julia C. (author)
  • Hunter, Stephen J. (author)
  • Abe-Ouchi, Ayako (author)
  • Chan, Wing-Le (author)
  • Kageyama, Masa (author)
  • Contoux, Camille (author)
  • Guo, Chuncheng (author)
  • Li, Xiangyu (author)
  • Lohmann, Gerrit (author)
  • Stepanek, Christian (author)
  • Tan, Ning (author)
  • Zhang, QiongStockholms universitet,Institutionen för naturgeografi(Swepub:su)qzhan (author)
  • Zhang, Zhongshi (author)
  • Han, Zixuan (author)
  • Williams, Charles J. R. (author)
  • Lunt, Daniel J. (author)
  • Dowsett, Harry J. (author)
  • Chandan, Deepak (author)
  • Peltier, W. Richard (author)
  • Stockholms universitetInstitutionen för naturgeografi (creator_code:org_t)

Related titles

  • In:Nature Communications: Springer Science and Business Media LLC13:12041-1723

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