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NOAA/WDS Paleoclimatology - Lake Turkana, Kenya, 6000 Year TEX86 Temperature

browse graphicPaleoclimatology - Lake
This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Lake. The data include parameters of climate reconstructions|paleolimnology with a geographic location of Kenya, Eastern Africa. The time period coverage is from 6022 to -40 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
  • Cite as: Berke, M.A.; Johnson, T.C.; Werne, J.P.; Schouten, S.; Sinninghe Damsté, J.S. (2014-06-18): NOAA/WDS Paleoclimatology - Lake Turkana, Kenya, 6000 Year TEX86 Temperature. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/r0w8-wd59. Accessed [date].
  • Please refer to Credit tab for full citation information.
noaa-lake-16589
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DistributorNOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Data Center Contact
NOAA World Data Service for Paleoclimatology
828-271-4800
paleo@noaa.gov
Coverage DescriptionDate Range: 6022 cal yr BP to -40 cal yr BP;
Time Period-4072 to 1990
Spatial Bounding Box Coordinates
N: 3.76
S: 2.7
E: 36.537
W: 35.95
Spatial Coverage Map
General Documentation
Associated Resources
  • A mid-Holocene thermal maximum at the end of the African Humid Period
    • Associated Reference published 2012
      Melissa A. Berke, Thomas C. Johnson, Josef P. Werne, Stefan Schouten, Jaap S. Sinninghe Damsté, 2012: A mid-Holocene thermal maximum at the end of the African Humid Period. Earth and Planetary Science Letters, 351-352, 95-104, 10.1016/j.epsl.2012.07.008
Publication Dates
  • publication: 2014-06-18
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress StatusComplete - production of the data has been completed
Data Update Frequency Data update frequency not available
Supplemental Information
STUDY NOTES: This dataset includes TEX86 data from Lake Turkana cores LT84-2P, LT84-7P, and LT94-14FC. The TEX86 temperature data are provided with both the uncalibrated TEX86 value and and the Kim et al., 2010 calibration used in the manuscript. Also, the calculated BIT Index (as described in the text) are provided here.
ABSTRACT SUPPLIED BY ORIGINATOR: The termination of the African Humid Period (AHP) about 5 thousand years ago (ka) was the most dramatic climate shift in northern and equatorial Africa since the end of the Pleistocene. Based on TEX86 paleotemperature data from Lake Turkana, Kenya, we show that a temperature shift of 2-4C occurred over the two millennia spanning the end of the AHP, with the warmest conditions occurring at ~5 ka. We note a similar shift, though of a smaller magnitude, in other East African temperature records from Lakes Malawi and Tanganyika, as well as Mt. Kilimanjaro. Additionally, we document the temperature history for the last 220 years from Lake Turkana that indicates the thermal anomaly at 5 ka was warmer than the present day Lake Turkana temperatures and on par with modern temperatures of Lakes Tanganyika and Malawi. We suggest that the thermal response at the end of the AHP may be linked to local insolation during September-November, when local air temperature rises to an annual maximum over Lakes Malawi and Tanganyika and a secondary maximum over Lake Turkana and Mt. Kilimanjaro. September-November insolation peaked at ~5 ka and likely caused air and water temperatures in the region to rise to maxima at that time.
PurposeRecords of past climate and environment derived from lake sediment records. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations.
Dataset Citation
  • Cite as: Berke, M.A.; Johnson, T.C.; Werne, J.P.; Schouten, S.; Sinninghe Damsté, J.S. (2014-06-18): NOAA/WDS Paleoclimatology - Lake Turkana, Kenya, 6000 Year TEX86 Temperature. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/r0w8-wd59. Accessed [date].
  • Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
Cited Authors
  • Berke, M.A.
  • Johnson, T.C.
  • Werne, J.P.
  • Schouten, S.
  • Sinninghe Damsté, J.S.
Originators
  • Berke, M.A.
  • Johnson, T.C.
  • Werne, J.P.
  • Schouten, S.
  • Sinninghe Damsté, J.S.
Publishers
  • NOAA National Centers for Environmental Information
Theme keywordsGlobal Change Master Directory (GCMD) Science Keywords
  • Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records
Global Change Master Directory (GCMD) Science Keywords
  • earth science > paleoclimate > climate reconstructions|paleolimnology
  • earth science > paleoclimate > paleolimnology
  • earth science > paleoclimate > climate reconstructions|paleolimnology
  • earth science > paleoclimate > climate reconstructions|paleolimnology
  • earth science > paleoclimate > paleolimnology
  • earth science > paleoclimate > paleolimnology
  • earth science > paleoclimate > paleolimnology > geochemistry
  • earth science > paleoclimate > paleolimnology > reconstruction
Paleoenvironmental Standard Terms (PaST) Thesaurus
  • What: age; Material: null
  • What: branched and isoprenoid tetraether index; Material: sediment
  • What: depth; Material: null
  • What: lake surface temperature; Material: glycerol dialkyl glycerol tetraether index
  • What: tetraether index of 86 carbon atoms; Material: sediment
  • What: notes; Material: null
Data Center keywordsGlobal Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Place keywords
  • Continent > Africa > Eastern Africa > Kenya > Lake Turkana LT84-2P > LATITUDE 2.7125 > LONGITUDE 36.537
  • Continent > Africa > Eastern Africa > Kenya > Lake Turkana LT94-14FC > LATITUDE 2.7 > LONGITUDE 36.487
  • Continent > Africa > Eastern Africa > Kenya > Lake Turkana LT84-7P > LATITUDE 3.76 > LONGITUDE 35.95
Use Constraints
  • Cite as: Berke, M.A.; Johnson, T.C.; Werne, J.P.; Schouten, S.; Sinninghe Damsté, J.S. (2014-06-18): NOAA/WDS Paleoclimatology - Lake Turkana, Kenya, 6000 Year TEX86 Temperature. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/r0w8-wd59. Accessed [date].
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
  • Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
Access Constraints
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
  • None
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  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Last Modified: 2024-02-01
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