Arctic tundra dendrochronology

The thesis is focused on treating of climate archives from arctic tundra. Namely, annual increments of dwarf shrubs (Juniperus communis) and their cell parameters. The methodology to exploit those archives from the places where instrumental meteorological record is short is still insufficient. The field works took place in Kobbefjord, south-west coast of Greenland. The samples were subsequently elaborated into permanent thin sections and the photographs were taken with 100x magnification. Ring width as well as cell parameters sizes were measured and cross-dated. The aim of the thesis is besides the selection of the best paleoclimatological proxy also improvement of the methodology - in particular detrending part. Acording to the first obtained results such need of specific detrending methods for growth series of dwarf tundra shrubs can be stated. Using those results can help to perform more reliable climate reconstructions