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Century-to-millennial scale climatic variability in Lake Malawi revealed by isotope records.

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Century-to-millennial scale climatic variability in Lake Malawi revealed by isotope records. / Barker, Philip A.; Leng, Melanie J.; Gasse, Françoise et al.
In: Earth and Planetary Science Letters, Vol. 261, No. 1-2, 09.2007, p. 93-103.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Barker, PA, Leng, MJ, Gasse, F & Huang, Y 2007, 'Century-to-millennial scale climatic variability in Lake Malawi revealed by isotope records.', Earth and Planetary Science Letters, vol. 261, no. 1-2, pp. 93-103. https://doi.org/10.1016/j.epsl.2007.06.010

APA

Barker, P. A., Leng, M. J., Gasse, F., & Huang, Y. (2007). Century-to-millennial scale climatic variability in Lake Malawi revealed by isotope records. Earth and Planetary Science Letters, 261(1-2), 93-103. https://doi.org/10.1016/j.epsl.2007.06.010

Vancouver

Barker PA, Leng MJ, Gasse F, Huang Y. Century-to-millennial scale climatic variability in Lake Malawi revealed by isotope records. Earth and Planetary Science Letters. 2007 Sept;261(1-2):93-103. doi: 10.1016/j.epsl.2007.06.010

Author

Barker, Philip A. ; Leng, Melanie J. ; Gasse, Françoise et al. / Century-to-millennial scale climatic variability in Lake Malawi revealed by isotope records. In: Earth and Planetary Science Letters. 2007 ; Vol. 261, No. 1-2. pp. 93-103.

Bibtex

@article{099740b869af494c9951b2099536b2cc,
title = "Century-to-millennial scale climatic variability in Lake Malawi revealed by isotope records.",
abstract = "Diatom-based oxygen isotope data ({\^I}´18Odiatom) from Lake Malawi show multi-centennial scale wet{\^a}��dry intervals spaced approximately every 2.3 ka throughout a 25 ka sequence. The {\^I}´18Odiatom record is supported by a lower resolution deuterium ({\^I}´Dpa)isotope curve derived from palmitic acid. We interpret these isotope data in terms of major shifts in precipitation and evaporation moderated by seasonal controls on the host organisms. Dry periods marked by relatively positive isotope values, represent the extension of abrupt Holocene events noted from northern and equatorial Africa to 10{\^a}��15{\^A}°S. These events in Lake Malawi correspond to cool episodes in Greenland, thereby demonstrating teleconnections generated by meridional temperature gradients. Sea surface temperatures are likely to be the primary transmitter of deglacial climate changes, although trade wind strength and direction is critical in controlling precipitation patterns in tropical regions. Conversely, the global hydrological cycle, driven by low latitude regions represents an important positive feedback amplifying deglacial processes.",
author = "Barker, {Philip A.} and Leng, {Melanie J.} and Fran{\c c}oise Gasse and Yongsong Huang",
year = "2007",
month = sep,
doi = "10.1016/j.epsl.2007.06.010",
language = "English",
volume = "261",
pages = "93--103",
journal = "Earth and Planetary Science Letters",
issn = "0012-821X",
publisher = "Elsevier Science B.V.",
number = "1-2",

}

RIS

TY - JOUR

T1 - Century-to-millennial scale climatic variability in Lake Malawi revealed by isotope records.

AU - Barker, Philip A.

AU - Leng, Melanie J.

AU - Gasse, Françoise

AU - Huang, Yongsong

PY - 2007/9

Y1 - 2007/9

N2 - Diatom-based oxygen isotope data (δ18Odiatom) from Lake Malawi show multi-centennial scale wet�dry intervals spaced approximately every 2.3 ka throughout a 25 ka sequence. The δ18Odiatom record is supported by a lower resolution deuterium (δDpa)isotope curve derived from palmitic acid. We interpret these isotope data in terms of major shifts in precipitation and evaporation moderated by seasonal controls on the host organisms. Dry periods marked by relatively positive isotope values, represent the extension of abrupt Holocene events noted from northern and equatorial Africa to 10�15°S. These events in Lake Malawi correspond to cool episodes in Greenland, thereby demonstrating teleconnections generated by meridional temperature gradients. Sea surface temperatures are likely to be the primary transmitter of deglacial climate changes, although trade wind strength and direction is critical in controlling precipitation patterns in tropical regions. Conversely, the global hydrological cycle, driven by low latitude regions represents an important positive feedback amplifying deglacial processes.

AB - Diatom-based oxygen isotope data (δ18Odiatom) from Lake Malawi show multi-centennial scale wet�dry intervals spaced approximately every 2.3 ka throughout a 25 ka sequence. The δ18Odiatom record is supported by a lower resolution deuterium (δDpa)isotope curve derived from palmitic acid. We interpret these isotope data in terms of major shifts in precipitation and evaporation moderated by seasonal controls on the host organisms. Dry periods marked by relatively positive isotope values, represent the extension of abrupt Holocene events noted from northern and equatorial Africa to 10�15°S. These events in Lake Malawi correspond to cool episodes in Greenland, thereby demonstrating teleconnections generated by meridional temperature gradients. Sea surface temperatures are likely to be the primary transmitter of deglacial climate changes, although trade wind strength and direction is critical in controlling precipitation patterns in tropical regions. Conversely, the global hydrological cycle, driven by low latitude regions represents an important positive feedback amplifying deglacial processes.

U2 - 10.1016/j.epsl.2007.06.010

DO - 10.1016/j.epsl.2007.06.010

M3 - Journal article

VL - 261

SP - 93

EP - 103

JO - Earth and Planetary Science Letters

JF - Earth and Planetary Science Letters

SN - 0012-821X

IS - 1-2

ER -