Growing season temperatures in Europe and climate forcings over the past 1400 years.

ABSTRACT:

Background

The lack of instrumental data before the mid-19th-century limits our understanding of present warming trends. In the absence of direct measurements, we used proxies that are natural or historical archives recording past climatic changes. A gridded reconstruction of spring-summer temperature was produced for Europe based on tree-rings, documentaries, pollen assemblages and ice cores. The majority of proxy series have an annual resolution. For a better inference of long-term climate variation, they were completed by low-resolution data (decadal or more), mostly on pollen and ice-core data.

Methodology/principal findings

An original spectral analog method was devised to deal with this heterogeneous dataset, and to preserve long-term variations and the variability of

SUBMITTER: Guiot J 

PROVIDER: S-EPMC2848609 | biostudies-literature | 2010 Apr

REPOSITORIES: biostudies-literature