5/31/2011

新着論文紹介(2011.5.31) AGU, Elsevier, etc...

☆Geophysical Research Letters☆ 2011/5/22-5/29

ENSO regimes: Reinterpreting the canonical and Modoki El Niño
Takahashi, K., A. Montecinos, K. Goubanova, and B. Dewitte (2011)
Geophys. Res. Lett., 38, L10704, doi:10.1029/2011GL047364
→熱帯太平洋SSTのEOF解析から、ENSOのレジームを記述する2つの指標を提唱。

Bistability of the Atlantic overturning circulation in a global climate model and links to ocean freshwater transport
Hawkins, E., R. S. Smith, L. C. Allison, J. M. Gregory, T. J. Woollings, H. Pohlmann, and B. de Cuevas (2011)
Geophys. Res. Lett., 38, L10605, doi:10.1029/2011GL047208
→FAMOUS-AOGCMの淡水流入実験で、AMOCの二つの安定状態(on/off)の挙動を再現。


☆Journal of Geophysical Research - Atmosphere☆ 2011/5/22-5/29

The aerosol–Bénard cell effect on marine stratocumulus clouds and its contribution to glacial-interglacial cycles
Bar-Or, R. Z., H. Gildor, and C. Erlick (2011)
J. Geophys. Res., 116, D10119, doi:10.1029/2010JD014470
→aerosol–Bénard cell effect(層積雲に影響)の負の放射強制力が、氷期間氷期サイクルにけっこう影響するらしい。


☆Journal of Geophysical Research - Oceans☆ 2011/5/22-5/29

特になし


☆Geochemistry, Geophysics, Geosystems☆ 2011/5/22-5/29

特になし


☆Global Biogeochemical Cycles☆ 2011/5/22-5/29

Anthropogenic nitrogen emissions during the Holocene and their possible effects on remote ecosystems
Kopáček, J., and M. Posch (2011)
Global Biogeochem. Cycles, 25, GB2017, doi:10.1029/2010GB003779
→8000 BC以降の人為起源窒素排出(主に農業による)を推定。累計17.4Pgのうち72%は産業革命前に排出され、遠隔地の生態系に影響していた?

Quantifying spatial and temporal Holocene carbon accumulation in ombrotrophic peatlands of the Eastmain region, Quebec, Canada
van Bellen, S., P.-L. Dallaire, M. Garneau, and Y. Bergeron (2011)
Global Biogeochem. Cycles, 25, GB2016, doi:10.1029/2010GB003877
→完新世のカナダ東部の泥炭地における炭素蓄積量を推定。平均蓄積速度は16.2 g m−2 yr−1で、後期完新世で減少


☆Paleoceanography☆ 2011/5/22-5/29

Persistent El Niño–Southern Oscillation variation during the Pliocene Epoch
Scroxton, N., S. G. Bonham, R. E. M. Rickaby, S. H. F. Lawrence, M. Hermoso, and A. M. Haywood (2011)
Paleoceanography, 26, PA2215, doi:10.1029/2010PA002097
→東熱帯太平洋の浮遊性有孔虫同位体組成と、HadCM3によるモデル計算から、PlioceneにおけるENSOの挙動を復元・解析。

Hydrological variability in Florida Straits during Marine Isotope Stage 5 cold events
Bahr, A., D. Nürnberg, J. Schönfeld, and D. Garbe-Schönberg (2011)
Paleoceanography, 26, PA2214, doi:10.1029/2010PA002015
→MIS5でのAMOCの挙動を復元するため、Florida Straitsの有孔虫のMg/Caとd18O分析。


☆Earth and Planetary Science Letters☆ 15 June 2011

Towards quantitative sea ice reconstructions in the northern North Atlantic: A combined biomarker and numerical modelling approach
Juliane Müller, Axel Wagner, Kirsten Fahl, Ruediger Stein, Matthias Prange, Gerrit Lohmann
Earth and Planetary Science Letters, Volume 306, Issues 3-4, 15 June 2011, Pages 137-148
→海洋表層堆積物中の、IP25(ケイ藻バイオマーカーで海氷プロキシになる)と植物プランクトン由来ステロールを組み合わせて、北大西洋の海氷分布を復元する方法を提唱。現代のリモセンや、リージョナルな海洋-海氷モデルの結果とも合う。


☆Organic Geochemistry☆ March 2011, May 2011

Distribution of intact and core GDGTs in marine sediments
Xiaolei Liu, Julius Sebastian Lipp, Kai-Uwe Hinrichs
Organic Geochemistry, Volume 42, Issue 4, May 2011, Pages 368-375
→海洋堆積物中の「生きている」アーキア脂質と化石アーキア脂質の分布。TEX86による古水温復元に、生きている画分が影響する?

Sources and distributions of tetraether lipids in surface sediments across a large river-dominated continental margin
Chun Zhu, Johan W.H. Weijers, Thomas Wagner, Jian-Ming. Pan, Jian-Fang Chen, Richard D. Pancost
Organic Geochemistry, Volume 42, Issue 4, May 2011, Pages 376-386
→揚子江と東シナ海堆積物のGDGTs脂質の分布。Branched-GDGTsはここの流域の環境プロキシとしては使えなさそう。

Separation of total nitrogen from sediments into organic and inorganic forms for isotopic analysis
Zhiyang Li, Guodong Jia
Organic Geochemistry, Volume 42, Issue 3, March 2011, Pages 296-299
→古海洋学などでよく用いられる窒素同位体組成分析を、無機窒素と有機窒素に分けて分析する手法の開発。


☆Quaternary International☆ 1 June 2011

Humans and Reindeer 特集
Edited by Knut Helskog and Svein Indrelid
Quaternary International, Volume 238, Issues 1-2, Pages 1-114 (1 June 2011)


☆Climate of the Past☆ 2011/5/22-5/29

特になし


☆Rapid Communications in Mass Spectrometry☆

Laser ablation isotope ratio mass spectrometry for enhanced sensitivity and spatial resolution in stable isotope analysis
James J. Moran, Matt K. Newburn, M. Lizabeth Alexander, Robert L. Sams, James F. Kelly, Helen W. Kreuzer
Rapid Communications in Mass Spectrometry, Volume 25, Issue 9, pages 1282–1290, 15 May 2011, DOI: 10.1002/rcm.4985
→50um解像度で固体d13C測定が可能な、LA-IRMSの開発。