Рубрики:
TEMPERATURE PATTERNS
TREE-RINGS
Кл.слова (ненормированные):
summer temperature -- volcanic activity -- dendrochronology -- larch -- Larix cajanderi -- ring width -- Yakutia
TEMPERATURE PATTERNS
TREE-RINGS
Кл.слова (ненормированные):
summer temperature -- volcanic activity -- dendrochronology -- larch -- Larix cajanderi -- ring width -- Yakutia
Аннотация: We report unusual twentieth-century early-summer warmth recorded by larch tree-rings at the northern tree-line in far northeastern Eurasia (Yakutia). The tree-ring series are strongly replicated and well suited to the detection of fluctuations on interannual to century timescales. They are strongly correlated with local instrumental temperature data. Mean early-summer temperature in the twentieth century significantly exceeds that of any period of the same length since Ao 1400. A century-scale trend, which commences in the mid-nineteenth century, is superimposed on interannual and decadal fluctuations, for example a marked cooling since 1978. While many of the 20 coolest early summers in the reconstruction occur within a few years after major explosive volcanic eruptions from low-latitude volcanoes, several of the 20 warmest early summers followed major explosive eruptions from high-latitude volcanoes.
WOS,
Scopus
Держатели документа:
Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85721 USA
Russian Acad Sci, Siberian Branch, Inst Forest, Krasnoyarsk 660036, Russia
Russian Acad Sci, Urals Branch, Inst Plant & Anim Ecol, Ekatarinburg 620219, Russia
Доп.точки доступа:
Hughes, M.K.; Vaganov, E.A.; Shiyatov, S...; Touchan, R...; Funkhouser, G...