noaa-lake-12909
Lake Cadagno Switzerland 11000 Year MBT/CBT Temperature Reconstruction
Niemann, H.; Stadnitskaia, A.; Wirth, S.B.; Gilli, A.; Anselmetti, F.S.; Sinninghe Damsté, J.S.; Schouten, S.; Hopmans, E.C.; Lehmann, M.F.
Lake Cadagno Switzerland 11000 Year MBT/CBT Temperature Reconstruction
2012-05-10
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/12909
Investigator
H.
Niemann
Investigator
A.
Stadnitskaia
Investigator
S.B.
Wirth
Investigator
A.
Gilli
Investigator
F.S.
Anselmetti
Investigator
J.S.
Sinninghe Damsté
Investigator
S.
Schouten
Investigator
E.C.
Hopmans
Investigator
M.F.
Lehmann
earth science
paleoclimate
climate reconstructions|paleolimnology
age at sample start,null,null,calendar year before present,null,climate reconstructions|paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
branched and isoprenoid tetraether index,sediment,null,null,null,paleolimnology,null,null,N,null
earth science
paleoclimate
climate reconstructions|paleolimnology
surface air temperature,glycerol dialkyl glycerol tetraether index,null,degree Celsius,annual,climate reconstructions|paleolimnology,null,null,N,using MBT/CBT
earth science
paleoclimate
climate reconstructions|paleolimnology
depth,null,null,centimeter,null,climate reconstructions|paleolimnology,null,null,N,composite depth corrected for slump deposits
earth science
paleoclimate
paleolimnology
cyclization index of branched tetraethers,sediment,null,null,null,paleolimnology,null,null,N,null
earth science
paleoclimate
climate reconstructions|paleolimnology
pH,glycerol dialkyl glycerol tetraether index|soil,null,dimensionless,null,climate reconstructions|paleolimnology,null,null,N,using CBT
earth science
paleoclimate
paleolimnology
methylation index of branched tetraethers,sediment,null,null,null,paleolimnology,null,null,N,null
earth science
paleoclimate
climate reconstructions|paleolimnology
age at sample end,null,null,calendar year before present,null,climate reconstructions|paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
reconstruction
earth science
paleoclimate
paleolimnology
geochemistry
geoscientificInformation
Air Temperature Reconstruction
Little Ice Age (LIA)
Medieval Warm Period
10981 cal yr BP
-59 cal yr BP
Complete
46.5507
46.5507
8.7139
8.7139
1921
1921
Continent
Europe
Western Europe
Switzerland
Lake Cadagno>LATITUDE 46.5507>LONGITUDE 8.7139
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Niemann, H., A. Stadnitskaia, S.B. Wirth, A. Gilli, F.S. Anselmetti,
J.S. Sinninghe Damsté, S. Schouten, E.C. Hopmans, and M.F. Lehmann. 2012.
Bacterial GDGTs in Holocene sediments and catchment soils of a high
Alpine lake: application of the MBT/CBT-paleothermometer.
Climate of the Past, Vol. 8, pp. 889-906.
www.clim-past.net/8/889/2012/
doi:10.5194/cp-8-889-2012
A novel proxy for continental mean annual air temperature (MAAT)
and soil pH, the MBT/CBT paleothermometer, is based on the
temperature (T) and pH-dependent distribution of specific bacterial
membrane lipids (branched glycerol dialkyl glycerol tetraethers –
GDGTs) in soil organic matter. Here, we tested the applicability
of the MBT/CBT-paleothermometer to sediments from Lake Cadagno,
a high Alpine lake in southern Switzerland with a small catchment
of 2.4 km2. We analysed the distribution of bacterial GDGTs
in catchment soils and in a radiocarbon dated sediment core
from the centre of the lake, covering the past 11 000 yr.
The distribution of bacterial GDGTs in the catchment soils
is very similar to that in the lake's surface sediments,
indicating a common origin of the lipids. Consequently,
their transfer from the soils into the sediment record seems
undisturbed, probably without any significant alteration
of their distribution through in situ production in the lake
itself or early diagenesis of branched GDGTs. The MBT/CBT-inferred
MAAT estimates from soils and surface sediments are in good
agreement with instrumental values for the Lake Cadagno region
(~0.5°C). Moreover, downcore MBT/CBT-derived MAAT estimates
match in timing and magnitude other proxy-based T reconstructions
from nearby locations for the last two millennia. Major climate
anomalies recorded by the MBT/CBT-paleothermometer are, for
instance, the Little Ice Age (~14th to 19th century) and the
Medieval Warm Period (MWP, ~9th to 14th century). Together,
our observations indicate the quantitative applicability
of the MBT/CBT-paleothermometer to Lake Cadagno sediments.
In addition to the MWP, our lacustrine paleo T record indicates
Holocene warm phases at about 3, 5, 7 and 11 kyr before present,
which agrees in timing with other records from both the Alps
and the sub-polar North-East Atlantic Ocean. The good temporal
match of the warm periods determined for the central Alpine
region with north-west European winter precipitation strength
implies a strong and far-reaching influence of the North Atlantic
Oscillation on continental European T variations during the Holocene.
STUDY NOTES: Lake sediment bacterial lipids data and MBT/CBT temperature
reconstruction from Lake Cadagno, Switzerland, for the past
11,000 years. Mean annual air temperature (MAAT) reconstruction
is based on the MBT/CBT paleothermometer, utilizing temperature
dependent distribution of specific bacterial membrane lipids
in soil organic matter.
Lake Cadagno, Switzerland: 46.5507°N, 8.7139°E, 1921m elevation.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/switzerland/cadagno2012.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/switzerland/cadagno2012.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11