... We have determined the correlation coefficient between tree-ring index values and the sunspot cycle length for 69 tree-ring data sets from around the world of greater than 594 years duration. ...
... Sidebar [Skip] . Trees flattened by the blast from the Tunguska bolide which impacted the atmosphere on 1908 June 30 . ... Tunguska bolide ", an event whose centenary is this year, flattened trees covering an area of two thousand square kilometres in ...
... attempts to set a standard for how the directory tree in a Linux system is organized ... The full directory tree is intended to be breakable into smaller parts, each on its ...
... See also: . Astronomy Bulletins . News Feed . ? Northern Ireland Trees Provide Clues to Climate Change . 2009 December 15th . ... Climate signal in tree-ring chronologies in a temperate climate: A multi-species approach . 2009 November 24th . ...
... a remote region of Siberia, flattening trees over thousands of square miles and ... Dendrochronology is the dating of wood samples from the pattern of tree-ring growth. ...
... a remote region of Siberia, flattening trees over thousands of square miles and ... Dendrochronology is the dating of wood samples from the pattern of tree-ring growth. ...