Homogeneity assessment of phenological records from the Swiss Phenology Network.

Phenological data have become increasingly important as indicators of long-term climate change. Consequently, long-term homogeneity of the records is an important aspect. In this paper, we apply a breakpoint detection algorithm to the phenological series from the Swiss Phenology Network (SPN).

Monitoring climate at Jungfraujoch in the high Swiss Alpine region.

A homogenized temperature record measured at Jungfraujoch, the highest permanently manned meteorological station in Europe at 3580 m asl, is presented based on almost 70 years of record (1937-2005). The observed decadal variability as well as the overall trend (1.8 degrees C/69 years) in the homogenized data is comparable to other homogenized Swiss time series at other altitudes.