Climate Variability and Extremes During the Past 100 Years

Variability of large-scale atmospheric circulation indices for the northern hemisphere during the past 100 years

We present an analysis of the large-scale atmospheric circulation variability since 1900 based on various circulation indices. They represent the main features of the zonal mean circulation in the northern hemisphere in boreal winter (such as the Hadley circulation, the subtropical jet, and the polar vortex in the lower stratosphere) as well as aspects of the regional and large-scale circulatio...

Climate variability for Kamchatka for the past 400 years

Multiproxy records of climate variability for Kamchatka for the past 400 years O. Solomina, G. Wiles, T. Shiraiwa, and R. D’Arrigo Institute of Geography RAS, Moscow, Russia The College of Wooster, Wooster, Ohio, USA Research Institute for Humanity and Nature, Kyoto, Japan Tree Ring Lab, Lamont Doherty Earth Observatory, Palisades, New York, USA Received: 4 August 2006 – Accepted: 26 October 20...

Natural variability of Greenland climate, vegetation, and ice volume during the past million years.

The response of the Greenland ice sheet to global warming is a source of concern notably because of its potential contribution to changes in the sea level. We demonstrated the natural vulnerability of the ice sheet by using pollen records from marine sediment off southwest Greenland that indicate important changes of the vegetation in Greenland over the past million years. The vegetation that d...

Variability of Annual Iowa Precipitation During the Past 95 Years

Caspar Amman Uncertainty of Causes and Climate Variability during Past Centuries – Regional and Climate Mode Response

Fingerprinting of external forcing Clear separation of anthropogenic from naturally forced climate changes is a fundamental prerequisite for any successful impact assessment of potential future climate change. The available instrumental record is both too short and contaminated through competing natural and anthropogenic forcings. An expansion of the records over many centuries provides a more ...