Organic geochemical records of environmental variability in Lake Malawi during the last 700 years, Part I: The TEX86 temperature record

Lindsay A. Powers; Thomas C. Johnson; Josef P. Werne; Isla S. Castañeda; Ellen C. Hopmans; Jaap S. Sinninghe Damsté; Stefan 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 TEX86 temperature record

Lindsay A. Powers, Thomas C. Johnson, Josef P. Werne, Isla S. Castañeda, Ellen C. Hopmans, Jaap S. Sinninghe Damsté, Stefan Schouten

Continental Scientific Drilling Facility

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

39 Scopus citations

Abstract

We have applied the TEX₈₆ paleothermometer to produce a surface water temperature record for Lake Malawi spanning the past 700years. Over much of the record 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 during the past ~ 100years. The TEX₈₆ temperature record reveals a strong similarity to the instrumental record; both records demonstrate warming (~0.7-1.4°C) over the past ~50years as well as a cooling anomaly around 1959. Comparison of the TEX₈₆ temperature record with the proxy records of primary productivity suggests that wind induced upwelling and/or precipitation have a strong influence on the surface temperature of Lake Malawi.

Original language	English (US)
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
State	Published - Apr 1 2011

Bibliographical note

Funding Information:
We would like to thank the European Association of Organic Geochemists for providing a travel scholarship to LP making this work possible. This research was supported in part by the National Science Foundation grant ATM-0502456 to JPW and NOAA grant NA06OAR4310113 to TCJ and JPW.

Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.

Keywords

Archaea
Climate change
Paleoclimate
Paleothermometer

Continental Scientific Drilling Facility tags

M98

Publisher link

10.1016/j.palaeo.2010.09.006

Find It

Find It at U of M Libraries

Cite this

Powers, L. A., Johnson, T. C., Werne, J. P., Castañeda, 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 TEX86 temperature record. Palaeogeography, Palaeoclimatology, Palaeoecology, 303(1-4), 133-139. https://doi.org/10.1016/j.palaeo.2010.09.006

Powers, LA, Johnson, TC, Werne, JP, Castañeda, 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 TEX86 temperature record', Palaeogeography, Palaeoclimatology, Palaeoecology, vol. 303, no. 1-4, pp. 133-139. https://doi.org/10.1016/j.palaeo.2010.09.006

@article{c46105bdf4ab4f00bb6c00759e6baf08,

title = "Organic geochemical records of environmental variability in Lake Malawi during the last 700 years, Part I: The TEX86 temperature record",

abstract = "We have applied the TEX86 paleothermometer to produce a surface water temperature record for Lake Malawi spanning the past 700years. Over much of the record 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 during the past ~ 100years. The TEX86 temperature record reveals a strong similarity to the instrumental record; both records demonstrate warming (~0.7-1.4°C) over the past ~50years as well as a cooling anomaly around 1959. Comparison of the TEX86 temperature record with the proxy records of primary productivity suggests that wind induced upwelling and/or precipitation have a strong influence on the surface temperature of Lake Malawi.",

keywords = "Archaea, Climate change, Paleoclimate, Paleothermometer",

author = "Powers, {Lindsay A.} and Johnson, {Thomas C.} and Werne, {Josef P.} and Casta{\~n}eda, {Isla S.} and Hopmans, {Ellen C.} and {Sinninghe Damst{\'e}}, {Jaap S.} and Stefan Schouten",

note = "Funding Information: We would like to thank the European Association of Organic Geochemists for providing a travel scholarship to LP making this work possible. This research was supported in part by the National Science Foundation grant ATM-0502456 to JPW and NOAA grant NA06OAR4310113 to TCJ and JPW. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

year = "2011",

month = apr,

day = "1",

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

language = "English (US)",

volume = "303",

pages = "133--139",

journal = "Palaeogeography, Palaeoclimatology, Palaeoecology",

issn = "0031-0182",

publisher = "Elsevier B.V.",

number = "1-4",

}

TY - JOUR

T1 - Organic geochemical records of environmental variability in Lake Malawi during the last 700 years, Part I

T2 - The TEX86 temperature record

AU - Powers, Lindsay A.

AU - Johnson, Thomas C.

AU - Werne, Josef P.

AU - Castañeda, Isla S.

AU - Hopmans, Ellen C.

AU - Sinninghe Damsté, Jaap S.

AU - Schouten, Stefan

N1 - Funding Information: We would like to thank the European Association of Organic Geochemists for providing a travel scholarship to LP making this work possible. This research was supported in part by the National Science Foundation grant ATM-0502456 to JPW and NOAA grant NA06OAR4310113 to TCJ and JPW. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.

PY - 2011/4/1

Y1 - 2011/4/1

N2 - We have applied the TEX86 paleothermometer to produce a surface water temperature record for Lake Malawi spanning the past 700years. Over much of the record 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 during the past ~ 100years. The TEX86 temperature record reveals a strong similarity to the instrumental record; both records demonstrate warming (~0.7-1.4°C) over the past ~50years as well as a cooling anomaly around 1959. Comparison of the TEX86 temperature record with the proxy records of primary productivity suggests that wind induced upwelling and/or precipitation have a strong influence on the surface temperature of Lake Malawi.

AB - We have applied the TEX86 paleothermometer to produce a surface water temperature record for Lake Malawi spanning the past 700years. Over much of the record 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 during the past ~ 100years. The TEX86 temperature record reveals a strong similarity to the instrumental record; both records demonstrate warming (~0.7-1.4°C) over the past ~50years as well as a cooling anomaly around 1959. Comparison of the TEX86 temperature record with the proxy records of primary productivity suggests that wind induced upwelling and/or precipitation have a strong influence on the surface temperature of Lake Malawi.

KW - Archaea

KW - Climate change

KW - Paleoclimate

KW - Paleothermometer

UR - http://www.scopus.com/inward/record.url?scp=79953162990&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79953162990&partnerID=8YFLogxK

U2 - 10.1016/j.palaeo.2010.09.006

DO - 10.1016/j.palaeo.2010.09.006

M3 - Article

AN - SCOPUS:79953162990

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 TEX86 temperature record

Abstract

Bibliographical note

Keywords

Continental Scientific Drilling Facility tags

Publisher link

Find It

Other files and links

Fingerprint

Cite this