Faculty of Science

ICAT-Ice Core Analysis and Techniques
Provider: Faculty of Science

Activity no.: 5890-19-11-31
	Enrollment deadline: 23/09/2019

Place	Niels Bohr Institute
Date and time	23.09.2019, at: 00:00 - 28.09.2019, at: 00:00
Regular seats	30
ECTS credits	2.00

Contact person	Julie Meier E-mail address: juliemh@nbi.ku.dk

Enrolment Handling/Course Organiser	Helle Astrid Kjær E-mail address: hellek@nbi.ku.dk

Aim and content The Ice Core Analysis Techniques (ICAT) PhD School offers participants a detailed introduction to the variety of climate and geophysical information that can be obtained from ice cores. The school aims to bring together leading ice core researchers and emerging young scientists; covering such diverse topics as ice core analysis, experimental techniques, integration of ice core data into models, statistics, mapping and non-destructive analysis techniques. We aim to provide a new forum for young ice core scientists to meet, learn and build a common experience for future collaborations. The PhD course is aimed at PhD students and junior postdocs who conduct ice core analysis or are users of ice core data (glaciological, oceanographic, climate modelers, earth scientists). ICAT aims to educate a new generation of ice core researchers and foster a collaborative environment for future glaciological projects. This course will educate young scientists regarding new methods developed for the analysis of ice cores with regard to climate research, with dedicated theoretical and laboratory exercise sessions. The PhD school will focus on the many aspects of climate reconstructions available from ice cores. The PhD school will cover dating methods applied to ice cores, such as annual layer counting, volcanic and other dating markers, greenhouse gases, cross-core and cross-archive dating, as well as the uncertainties associated with the different dating methods. We will include discussions regarding transport and deposition processes, such as different wind patterns of the past, dry and wet deposition, re-deposition and sastrugi influence, firnification and movement within the ice, diffusion and influence of the ice matrix as well as crystal boundary effects. We will discuss the multiple proxies determined in ice cores, measurement methods, accuracy and precision. State-of-the-art measurement techniques such as ICP-MS, CFA, IC, IRMS, Picarros as well as sampling and cleaning methods. Also nondestructive methods such as ECM, DEP and borehole logging will be explained as well as laser ablation techniques. The methods will be compared in terms of measurement accuracy, but also in term of depth resolution and of cause the number of different proxies will be discussed, such as reconstruction of source areas, source changes, temperature, greenhouse gases, volcanic eruptions, biosphere, etc. We will discuss the different ways to retrieve ice cores, differences and benefits of different ice core sites, drilling techniques, replicate drilling, shallow drilling, rapid access and the potential for borehole logging techniques. Finally we will introduce how one can work with the ice core data. How to deal with missing data, data with variable resolution, we will discuss what can actually be learned from correlations, and the importance of including uncertainties and variability in reconstructions. The applicants will be expected to give a short presentation of their own research topics, and thus we will update each other on the most recent research within ice cores. Further the course will include laboratory visits at the Centre for Ice and Climate and excursions within the Copenhagen area. Lecturers Guest lecturers: - Kumiko Goto-Azuma, Ice Core Research Center, National Institute of Polar Research, Japan - Peter Neff, Earth and Space Sciences, University of Washington - Rachel Rhodes, Department of Earth Sciences, University of Cambridge - Tobias Erhardt, Climate and Environmental Physics, University of Bern Lecturers from NBI include: Thomas Blunier, Dorthe Dahl-Jensen, Christine Hvidberg, Paul Vallelonga, Sune Olander Rasmussen, Bo Vinther, Helle Astrid Kjær, and more… Workload 6 days, 8 hours per day. Lectures + laboratory exercises + computing exercises. Expected workload in class: 40 hours. Preparatory work or work after class : 10 hours. Attendance : 2 ECTS. Remarks Aknowledgements: This course has been funded through University of Copenhagen, Science PhD school. The European Project for Ice Coring in Antarctica has offered travel support for a limited number of students from EPICA partner countries. The European Geophysical Union has offered support for key young researchers, who otherwise would not be able to join the event.

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