noaa-lake-13016
Lake Silvaplana, Switzerland 775 Year Summer Temperature Reconstruction
Trachsel, M.; Grosjean, M.; Schnyder, D.; Kamenik, C.; Rein, B.
Lake Silvaplana, Switzerland 775 Year Summer Temperature Reconstruction
2012-06-13
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/13016
Investigator
M.
Trachsel
Investigator
M.
Grosjean
Investigator
D.
Schnyder
Investigator
C.
Kamenik
Investigator
B.
Rein
earth science
paleoclimate
climate reconstructions|paleolimnology
age,null,null,year Common Era,null,climate reconstructions|paleolimnology,null,null,N,null
earth science
paleoclimate
climate reconstructions|paleolimnology
surface temperature,null,null,degree Celsius,Jun-Aug,climate reconstructions|paleolimnology,filtered,null,N,9-100 year band pass filtered; based on visible reflectance spectroscopy
earth science
paleoclimate
paleolimnology
reconstruction
earth science
paleoclimate
paleolimnology
physical properties
geoscientificInformation
Air Temperature Reconstruction
1175 AD
1949 AD
775 cal yr BP
1 cal yr BP
Complete
46.45
46.45
9.8
9.8
1800
1800
Continent
Europe
Western Europe
Switzerland
Lake Silvaplana>LATITUDE 46.45>LONGITUDE 9.8
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
Trachsel, M., M. Grosjean, D. Schnyder, C. Kamenik, and B. Rein. 2010.
Scanning reflectance spectroscopy (380–730 nm): a novel method for
quantitative high-resolution climate reconstructions from minerogenic
lake sediments.
Journal of Paleolimnology, December 2010, Vol. 44, Issue 4, pp 979-994.
DOI: 10.1007/s10933-010-9468-7
High-resolution (annual to sub-decadal) quantitative reconstructions
of climate variables are needed from a variety of paleoclimate archives
across the world to place current climate change in the context of
long-term natural climate variability. Rapid, high-resolution,
non-destructive scanning techniques are required to produce such
high-resolution records from lake sediments. In this study we explored
the potential of scanning reflectance spectroscopy (VIS-RS; 380-730 nm)
to produce quantitative summer temperature reconstructions from
minerogenic sediments of proglacial, annually laminated Lake Silvaplana,
in the eastern Swiss Alps. The scanning resolution was 2 mm,
which corresponded to sediment deposition over 1-2 years. We found
correlations up to r = 0.84 (p<0.05) for the calibration period
1864-1950, between six reflectance-dependent variables and summer
(JJAS) temperature. These reflectance-dependent variables (e.g. slope
of the reflectance 570/630 nm, indicative of illite, biotite
and chlorite; minimum reflectance at 690 nm indicative of chlorite)
indicate the mineralogical composition of the clastic sediments,
which is, in turn, related to climate in the catchment of this
particular proglacial lake. We used multiple linear regression (MLR)
to establish a calibration model that explains 84% of the variance
of summer (JJAS) temperature during the calibration period 1864-1950.
We then applied the calibration model downcore to develop a
quantitative summer temperature reconstruction extending back to
AD 1177. This temperature reconstruction is in good agreement with
two independent temperature reconstructions based on documentary data
that extend back to AD 1500 and tree ring data that extend back to
AD 1177. This study confirms the great potential of in situ scanning
reflectance spectroscopy as a novel non-destructive technique to
rapidly acquire high-resolution quantitative paleoclimate information
from minerogenic lake sediments.
STUDY NOTES: 775 year summer (JJA) temperature reconstruction for the Swiss Alps
based on visible reflectance spectroscopy from Lake Silvaplana,
Switzerland.
Lake Silvaplana, Switzerland: 46°27'N, 9°48'E, 1800m
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/switzerland/silvaplana2010c.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/switzerland/silvaplana2010c.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11