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Annual variability of mean July air temperature: was the variability higher during warmer periods of the past?
English title
Annual variability of mean July air temperature: was the variability higher during warmer periods of the past?
Applicant
Larocque Isabelle
Number
131177
Funding scheme
Marie Heim-Voegtlin grants
Research institution
Oeschger-Zentrum für Klimaforschung Universität Bern
Institution of higher education
University of Berne - BE
Main discipline
Palaeontology
Start/End
01.05.2010 - 31.07.2010
Approved amount
16'814.00
Show all
All Disciplines (2)
Discipline
Palaeontology
Hydrology, Limnology, Glaciology
Keywords (4)
variability; chironomids; paleolimnology; temperature reconstruction
Lay Summary (English)
Lead
Lay summary
Chironomids (non-biting midges) preserved in the sediment of Seebergsee (46°37°N, 7°28°E) will be used to infer past mean July air temperatures for the past 150 years. Two models of calibration will be used: a spatial calibration using 101 lakes in Switzerland (see Larocque et al. 2009) and a calibration in time based on instrumental data. The three months of funding will allow the validation of the technique and publication of two papers. However, the larger goal of this project would be to reconstruct temperature over the last millennium, at high temporal resolution, and determine if, as models predict, the climate variability was higher during warmer periods of the past.
Direct link to Lay Summary
Last update: 21.02.2013
Responsible applicant and co-applicants
Name
Institute
Larocque Isabelle
Oeschger-Zentrum für Klimaforschung Universität Bern
Employees
Name
Institute
Larocque Isabelle
Oeschger-Zentrum für Klimaforschung Universität Bern
Associated projects
Number
Title
Start
Funding scheme
118600
Interannual variability in summer temperature through the last 3300 years as recorded by chironomids (non-biting midges) in the varved sediment of Lake Silvaplana
01.05.2008
Marie Heim-Voegtlin grants
118600
Interannual variability in summer temperature through the last 3300 years as recorded by chironomids (non-biting midges) in the varved sediment of Lake Silvaplana
01.05.2008
Marie Heim-Voegtlin grants
Abstract
To better understand climate variability during warmer and colder of the past, chironomids (non-biting midges) preserved in the sediment of lake Seebergsee will be used to infer mean July air temperature. This project will validate the climate models by determining if the annual variability was higher during warmer periods of the past.
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