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Late Holocene climate reorganisation and the North American Monsoon

Jones, Matthew D.; Metcalfe, Sarah E.; Davies, Sarah J.; Noren, Anders

Authors

MATTHEW JONES MATTHEW.JONES@NOTTINGHAM.AC.UK
Professor of Quaternary Science

Sarah J. Davies sjd@aber.ac.uk

Anders Noren



Abstract

The North America Monsoon (NAM) provides the majority of rainfall for central and northern Mexico as well as parts of the south west USA. The controls over the strength of the NAM in a given year are complex, and include both Pacific and Atlantic systems. We present here an annually resolved proxy reconstruction of NAM rainfall variability over the last ~6ka, from an inwash record from the Laguna de Juanacatlán, Mexico. This high resolution, exceptionally well dated record allows changes in the NAM through the latter half of the Holocene to be investigated in both time and space domains, improving our understanding of the controls on the system. Our analysis shows a shift in conditions between c. 4 and 3 ka BP, after which clear ENSO/PDO type forcing patterns are evident.

Journal Article Type Article
Publication Date Sep 15, 2015
Journal Quaternary Science Reviews
Print ISSN 0277-3791
Electronic ISSN 1873-457X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 124
Article Number 290-295
APA6 Citation Jones, M. D., Metcalfe, S. E., Davies, S. J., & Noren, A. (2015). Late Holocene climate reorganisation and the North American Monsoon. Quaternary Science Reviews, 124, https://doi.org/10.1016/j.quascirev.2015.07.004
DOI https://doi.org/10.1016/j.quascirev.2015.07.004
Keywords Mexico, North American Monsoon, Holocene, XRF scanning, ENSO, PDO, AMO
Publisher URL http://www.sciencedirect.com/science/article/pii/S0277379115300433
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0





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