Seasonality of isotopic and chemical species and biomass burning signals remaining in wet snow in the accumulation area of Sofiyskiy Glacier, Russian Altai Mountains

Preliminary glaciological investigation was carried out on the accumulation area of Sofiyskiy Glacier, Russian Altai Mountains in July 2000. Analyses of a 12.3m core and 3m deep pit samples show that seasonal variations of δ^O, tritium and melt features remained in the wet snow layers. Annual layer thickness determined on the basis of seasonality of these elements for 12.3m core is 0.99m of water on average in 1994-1999 with a minimum in 1998 when the minimum mass balance was observed for three other glaciers in the Altai Mountains. High correlations of NH_4^+ concentration with concentrations of K^+, SO_4^2, NO_3^- and PO_4^ are found. NH_4^+ and K^+ are considered to be of biomass burning origin, and PO_4^ and NH_4^+ are due to chemical ingredients used for fire extinction in biomass burning

Anomalously large critical regions in power-law random matrix ensembles

We investigate numerically the power-law random matrix ensembles. Wavefunctions are fractal up to a characteristic length whose logarithm diverges asymmetrically with different exponents, 1 in the localized phase and 0.5 in the extended phase. The characteristic length is so anomalously large that for macroscopic samples there exists a finite critical region, in which this length is larger than the system size. The Green's functions decrease with distance as a power law with an exponent related to the correlation dimension.Comment: RevTex, 4 pages, 4 eps figures. Final version to be published in Phys. Rev. Let

ロシア・アルタイ山脈ソフィスキー氷河で2001年に掘削した25.3mコアの層位と粒径

ArticleBulletin of glaciological research. 21: 65-69 (2004)journal articl

ロシア・アルタイ山脈ソフィスキー氷河における日本-ロシア共同雪氷調査の概要(2000、2001)

ArticleBulletin of glaciological research. 19: 53-58 (2002)journal articl