Oslo joint seminar in atmospheric, ocean and climate science, Oct. 17

Title: Aerosols and Ancient History in Arctic and Alpine Ice

Speaker:  Joe McConnell, DRI

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Speaker:

Joe McConnell, DRI

Abstract:

Aerosol records developed from polar ice cores are powerful tools for reconstructing the timing and extent of past natural and anthropogenic changes in Earth’s environment during past centuries to millennia. Recent analytical advances enable development of accurately dated aerosol records of sea spray, windblown dust, biomass burning, volcanism, and industrial activities. Here we used high-depth-resolution ice-core measurements in an array of 13 ice cores to develop a 3000-year, sub-annually resolved record of Arctic lead pollution extending from the Iron Age to present and including European Antiquity, the Middle Ages, and the Modern Period. We describe how these pollution records were developed, discuss inherent uncertainties in these and all ice-core aerosol records, and interpret our records in terms of their historical implications using detailed atmospheric aerosol transport and deposition modeling. We also present the first Alpine ice record of lead and antimony pollution during Antiquity.

 

What is the Joint Oslo Seminar (JOS):

Atmospheric and climate sciences have a stronghold in Oslo among the four institutions University of Oslo, the Meteorological Institute, CICERO and NILU. This joint seminar invites renowned international experts to contribute to an informal series of lectures, meant to create interaction with the Oslo atmospheric and climate science community on recent highlights and analysis in the field. All seminars will be held on Thursdays (Noon -1pm) and lunch (sandwiches) will be served on a “first-come-first-served”-basis.

Published Aug. 14, 2019 11:52 AM - Last modified Oct. 2, 2019 7:53 AM