Workshops

TRACE 2018 is preceded by four pre-conference workshops on April 23-24. Registration for the workshops is done via the online conference registration process on a first-come, first-serve basis (maximum number of participants per workshop: 20).

A daily fee of 20 Euros per participant is billed and will be charged upon registration; this fee includes lunch and coffee breaks. Please note that for the poster-making workshop, printing costs of 27 Euros will be charged in addition.

All workshops are one-day workshops, except for the workshop ‘Blue intensity and X-ray-based wood density measures’ that lasts two full days.

Monday, April 23, 2018

Designing effective scientific posters (incl. printing at University of Greifswald)
Dr. Elisabeth Robert, CREAF – Centre for Ecological Research and Forestry, Spain
In this workshop, we will address all aspects of scientific poster making. The workshop is designed as such that the participants come in with a first digital poster proposition based on the work they want to present, get help from professionals and peers to ameliorate their poster, and end the day with a printed poster that can be presented during the conference. We will discuss the content and the visual aspects of a scientific poster, address the practical aspects of postermaking and bring in some hands-on creativity training.

At the pulse of trees: analyzing dendrometer and sap flow data
Prof. Dr. Kathy Steppe, Laboratory of Plant Ecology, Faculty of Bioscience Engineering, Ghent University, Belgium
In this workshop, we will discover how plant sensors can be used to assess and better understand tree physiology and functioning. We will focus on two specific plant sensors: dendrometers and sap flow sensors. Different sensor types and their working principles will be discussed. This will enable participants to select the most suited sensor type for their particular research goals. The added value of a combination of both sensor types will be highlighted using a live demonstration. During the practical session, we will also use a mechanistic tree model to link both measurements to discover the mechanisms underlying radial tree stem growth.

Blue intensity and X-ray-based wood density measures
Dr. Ryszard Kaczka, University of Silesia, Poland
Dr. Tobias Scharnweber, University of Greifswald, Germany
Dr. Rob Wilson, University of St. Andrews, Scottland
Wood density (WD), especially maximum wood density, is a widely used climate proxy. Recently, Blue Intensity (BI) -a proxy that is comparably quick and cheap to obtain- was found to carry similar climate signals. The workshop will focus on practical aspects of using WD and BI in dendrochronological studies, and will be divided in three sections. First, sampling procedures, wood preparation and measuring techniques will be discussed. Participants will have the opportunity to observe wood sample processing with 1) an ITRAX multi-scanner that is used to measure WD, and 2) a flatbed scanner producing images to measure BI. Basic training of using the measurement software CooRecorder and WinDendro will constitute the second part of the workshop. Practical examples of using WD and BI in climate reconstructions and dendroarchaeological studies will be provided in the third part of the workshop.

Tuesday, April 24, 2018

Advanced time series analysis
Dr. Reik Donner, Potsdam Institute for Climate Impact Research (PIK), Germany
This workshop provides an introduction to advanced time series analysis, building upon statistical background knowledge, especially in correlation and response function analyses. Thereby, the workshop extends upon TRACE 2017’s statistics workshop “R Fundamentals in Dendrochronology”. Specific topics to be addressed include (i) spectral and wavelet analysis, (ii) fundamentals of multivariate statistics, including linear mixed models that allow accounting for inter-tree variability in climatic responses, and (iii) event coincidence analysis for establishing statistical linkages between phases of extraordinary tree growth and associated atypical environmental conditions. All analyses will be done in R. Basic R skills are a prerequisite to participate in the workshop.

Blue intensity and X-ray-based wood density measures
Continuation of workshop starting on Monday.