Organic geochemical records of environmental variability in Lake Malawi during the last 700 years, Part I: The TEX(86) temperature record

L.A. Powers; T.C. Johnson; J.P. Werne; I.S. Castaneda; E.C. Hopmans; J.S. Sinninghe Damsté; S. Schouten

doi:10.1016/j.palaeo.2010.09.006

Organic geochemical records of environmental variability in Lake Malawi during the last 700 years, Part I: The TEX(86) temperature record

L.A. Powers
, T.C. Johnson
, J.P. Werne
, I.S. Castaneda
, E.C. Hopmans
, J.S. Sinninghe Damsté
, S. Schouten

extern

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

We have applied the TEX86 paleothermometer to produce a surface water temperature record for LakeMalawi spanning the past 700 years. Over much oftherecord temperature fluctuates from ~ 24–27 °C with a mean of ~ 25 °C ; however, there has been a substantial increase in temperature of ~ 2.0 °C duringthe past ~ 100 years. The TEX86 temperature record reveals a strong similarity to the instrumental record; both records demonstrate warming (~ 0.7–1.4 °C) over the past ~ 50 years as well as a cooling anomaly around 1959. Comparison ofthe TEX86 temperature record with the proxy recordsof primary productivity suggests that wind induced upwelling and/or precipitation have a strong influence on the surface temperature of LakeMalawi

Original language	English
Pages (from-to)	133-139
Number of pages	7
Journal	Palaeogeography, Palaeoclimatology, Palaeoecology
Volume	303
Issue number	1-4
DOIs	https://doi.org/10.1016/j.palaeo.2010.09.006
Publication status	Published - 2011

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Powers, L. A., Johnson, T. C., Werne, J. P., Castaneda, I. S., Hopmans, E. C., Sinninghe Damsté, J. S., & Schouten, S. (2011). Organic geochemical records of environmental variability in Lake Malawi during the last 700 years, Part I: The TEX(86) temperature record. Palaeogeography, Palaeoclimatology, Palaeoecology, 303(1-4), 133-139. https://doi.org/10.1016/j.palaeo.2010.09.006

@article{01d3a14a594848cba61f34cad940a222,

title = "Organic geochemical records of environmental variability in Lake Malawi during the last 700 years, Part I: The TEX(86) temperature record",

abstract = "We have applied the TEX86 paleothermometer to produce a surface water temperature record for LakeMalawi spanning the past 700 years. Over much oftherecord temperature fluctuates from \textasciitilde{} 24–27 °C with a mean of \textasciitilde{} 25 °C ; however, there has been a substantial increase in temperature of \textasciitilde{} 2.0 °C duringthe past \textasciitilde{} 100 years. The TEX86 temperature record reveals a strong similarity to the instrumental record; both records demonstrate warming (\textasciitilde{} 0.7–1.4 °C) over the past \textasciitilde{} 50 years as well as a cooling anomaly around 1959. Comparison ofthe TEX86 temperature record with the proxy recordsof primary productivity suggests that wind induced upwelling and/or precipitation have a strong influence on the surface temperature of LakeMalawi",

author = "L.A. Powers and T.C. Johnson and J.P. Werne and I.S. Castaneda and E.C. Hopmans and \{Sinninghe Damst{\'e}\}, J.S. and S. Schouten",

year = "2011",

doi = "10.1016/j.palaeo.2010.09.006",

language = "English",

volume = "303",

pages = "133--139",

journal = "Palaeogeography, Palaeoclimatology, Palaeoecology",

issn = "0031-0182",

publisher = "Elsevier BV",

number = "1-4",

}

Powers, LA, Johnson, TC, Werne, JP, Castaneda, IS, Hopmans, EC, Sinninghe Damsté, JS & Schouten, S 2011, 'Organic geochemical records of environmental variability in Lake Malawi during the last 700 years, Part I: The TEX(86) temperature record', Palaeogeography, Palaeoclimatology, Palaeoecology, vol. 303, no. 1-4, pp. 133-139. https://doi.org/10.1016/j.palaeo.2010.09.006

TY - JOUR

T1 - Organic geochemical records of environmental variability in Lake Malawi during the last 700 years, Part I: The TEX(86) temperature record

AU - Powers, L.A.

AU - Johnson, T.C.

AU - Werne, J.P.

AU - Castaneda, I.S.

AU - Hopmans, E.C.

AU - Sinninghe Damsté, J.S.

AU - Schouten, S.

PY - 2011

Y1 - 2011

N2 - We have applied the TEX86 paleothermometer to produce a surface water temperature record for LakeMalawi spanning the past 700 years. Over much oftherecord temperature fluctuates from ~ 24–27 °C with a mean of ~ 25 °C ; however, there has been a substantial increase in temperature of ~ 2.0 °C duringthe past ~ 100 years. The TEX86 temperature record reveals a strong similarity to the instrumental record; both records demonstrate warming (~ 0.7–1.4 °C) over the past ~ 50 years as well as a cooling anomaly around 1959. Comparison ofthe TEX86 temperature record with the proxy recordsof primary productivity suggests that wind induced upwelling and/or precipitation have a strong influence on the surface temperature of LakeMalawi

AB - We have applied the TEX86 paleothermometer to produce a surface water temperature record for LakeMalawi spanning the past 700 years. Over much oftherecord temperature fluctuates from ~ 24–27 °C with a mean of ~ 25 °C ; however, there has been a substantial increase in temperature of ~ 2.0 °C duringthe past ~ 100 years. The TEX86 temperature record reveals a strong similarity to the instrumental record; both records demonstrate warming (~ 0.7–1.4 °C) over the past ~ 50 years as well as a cooling anomaly around 1959. Comparison ofthe TEX86 temperature record with the proxy recordsof primary productivity suggests that wind induced upwelling and/or precipitation have a strong influence on the surface temperature of LakeMalawi

U2 - 10.1016/j.palaeo.2010.09.006

DO - 10.1016/j.palaeo.2010.09.006

M3 - Article

SN - 0031-0182

VL - 303

SP - 133

EP - 139

JO - Palaeogeography, Palaeoclimatology, Palaeoecology

JF - Palaeogeography, Palaeoclimatology, Palaeoecology

IS - 1-4

ER -

Organic geochemical records of environmental variability in Lake Malawi during the last 700 years, Part I: The TEX(86) temperature record

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