title: Multi-century long density chronology of living and sub-fossil trees from Lake Schwarzensee, Austria.
abstract: This paper presents a multi-century, maximum latewood density (MXD) chronology developed from living and sub-fossil spruce trees from the Eastern Alps. The chronology is continuous from 88AD to 2008AD. This time series has been analysed with respect to its possible use for climate reconstruction. Correlations with climatic data showed strong dependence between MXD of growth rings and temperature of April, May, June, July, August and September and a weaker, negative dependence with precipitation of May and September. For solar radiation a positive relationship was noted for April, July, August and September. Light rings were frequently observed within the analysed samples and the climate of years with light rings was examined. Mean monthly temperatures in January, June, August, September and October, averaged during light ring years, were cooler than during years without light rings. Precipitation was also significantly reduced in March during light ring years. In turn, solar radiation during light ring years has significantly lowered values in February and August. The occurrence of light rings was often positively related to strong volcanic events.
authors.affiliation: University of Natural Resources and Life Sciences Vienna, BOKU, Konrad Lorenz Straße 24, 3430 Tulln an der Donau, Austria.
authors.forename: Marzena
authors.initials: M
authors.lastname: Kłusek
authors.affiliation: Climatic Research Unit, University of East Anglia, Norwich NR4 7TJ, United Kingdom.
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Melvin
authors.affiliation: University of Natural Resources and Life Sciences Vienna, BOKU, Konrad Lorenz Straße 24, 3430 Tulln an der Donau, Austria.
authors.forename: Michael
authors.initials: M
authors.lastname: Grabner
keywords: Alps; Density chronology; Light rings; Maximum density; Sub-fossil wood