Allan先生のお誕生日会＆送別会

皆様
坂下です。

本日
約２週間大気海洋研究所に滞在されたAllan先生の送別会が開かれました。

Allan先生のお誕生日が先週の木曜日だったこともあり
池田さんと沢田さんにケーキを買ってきて頂きました。

Allan先生には滞在中２回もセミナーをして頂き
研究室にとても良い刺激を与えて頂きました。

ありがとうがざいました。

以下そのときの写真です。

お誕生日おめでとうございます

 みんなで集合写真

茨城県自然博物館に行ってきました

皆様

坂下です。

2014年12月20日土曜日に
茨城県自然博物館の企画展のオープンセレモニーに参加してきました。

横山研からの参加者は沢田さん一家、関さんと坂下の５人です。

今回の企画展のタイトルは
「マンモスが渡った橋　氷河期の動物大移動」です！！

この企画展におきまして
横山研からは気候変動ブースに必要なサンプルをいくつかお貸ししました。

企画展は来年2015年6月7日日曜日まで公開です。

以下写真になります。

くす玉割り

最初はマンモスがお出迎え

ほとんどが横山研提供のブース

木の年輪、鍾乳石、有孔虫、迷子石、サンゴなどが展示されています

他にもたくさんの展示がありますので興味をお持ちになった方はぜひ！！

スティーブさんのお祝い会

皆様

坂下です。

2014年12月9日
スティーブさんの秋田大学准教授就任のお祝い会が開催されました。
今回のお祝い会は横山研をはじめOFGSの皆さんにも参加して頂きました。

スティーブさんには
英語の添削だけでなく研究内容についての議論でも
お世話になった方が多いかと思います。
ありがとうございました！！

これから寂しくなりますが
スティーブさんのこれからの更なるご活躍をお祈りしております。

以下お祝い会の写真です。

３つのケーキとスティーブ

花束とスティーブ

スティーブとの集合写真

追伸

お祝い会の当日に卓球大会の決勝も行われました。
スティーブさんにも参加して頂きました。
結果は優勝という最高の結果でした、応援ありがとうございました！！

卓球とスティーブ

新着論文紹介 ELSEVIER 2014/08/11–17

☆Global and Planetary Change☆

1. New constraints on the timing of West Antarctic Ice Sheet retreat in the eastern Amundsen Sea since the Last Glacial Maximum

James A. Smith , Claus-Dieter Hillenbrand , Gerhard Kuhn , Johann Phillip Klages , Alastair G.C. Graham , Robert D. Larter , Werner Ehrmann , Steven G. Moreton , Steffen Wiers , Thomas Frederichs

DOI: 10.1016/j.gloplacha.2014.07.015

Highlights

•We provide a comprehensive deglacial chronology for the eastern Amundsen Sea

•Data will help constraints ice sheet models

•Shows consistent pattern of deglaciation across the Amundsen Sea Embayment

•Pattern of retreat highlights the importance of reverse bedslopes

2. A tree-ring based drought reconstruction (AD 1760–2010) for the Loess Plateau and its possible driving mechanisms

Feng Chen , Yujiang Yuan , Ruibo Zhang , Li Qin

DOI: 10.1016/j.gloplacha.2014.08.008

☆Paleo 3☆

3. Quantification and propagation of errors when converting vertebrate biomineral oxygen isotope data to temperature for palaeoclimate reconstruction

Alexander J.E. Pryor , Rhiannon E. Stevens , Tamsin C. O'Connell , John R. Lister

DOI: 10.1016/j.palaeo.2014.07.003

Highlights

•The statistical errors in converting isotope data to palaeotemperature are analysed.

•Appropriate methods, and equations with supporting spreadsheet, are presented.

•Transposed regression underestimates temperature differences by at least 40%.

•Increasing sample size from 1 to 5 gives big improvements, more than 5 less so.

•Uncertainty from natural faunal variability dominates that from precipitation data.

☆Quaternary International☆

4. Fine and coarse-quartz SAR-OSL dating of Last Glacial loess in Southern Romania

Daniela Constantin , Andrada Cameniţă , Cristian Panaiotu , Cristian Necula , Vlad Codrea , Alida Timar-Gabor

DOI: 10.1016/j.quaint.2014.07.052

新着論文紹介 2014/07/22 AGU

☆G-cubed☆

1. Formation and geomorphologic history of the Lonar impact crater deduced from in situ cosmogenic ¹⁰Be and ²⁶Al

Atsunori Nakamura, Yusuke Yokoyama, Yasuhito Sekine, Kazuhisa Goto, Goro Komatsu, P. Senthil Kumar, Hiroyuki Matsuzaki, Ichiro Kaneoka, Takafumi Matsui

DOI: 10.1002/2014GC005376

2. Local and regional trends in Plio-Pleistocene δ¹⁸O records from benthic foraminifera

David B. Bell, Simon J. A. Jung, Dick Kroon, Lucas J. Lourens, David A. Hodell

DOI: 10.1002/2014GC005297

☆GRL☆

3. Enhanced acidification of global coral reefs driven by regional biogeochemical feedbacks

Tyler Cyronak, Kai G. Schulz, Isaac R. Santos, Bradley D. Eyre

DOI: 10.1002/2014GL060849

4. Erosion dynamics following localized permafrost slope disturbances

Scott F. Lamoureux, Melissa J. Lafrenière, Elena A. Favaro

DOI: 10.1002/2014GL060677

5. High manganese concentrations in rocks at Gale crater, Mars

Nina L. Lanza, Woodward W. Fischer, Roger C. Wiens, John Grotzinger, Ann M. Ollila, Agnes Cousin, Ryan B. Anderson, Benton C. Clark, Ralf Gellert, Nicolas Mangold, Sylvestre Maurice, Stéphane Le Mouélic, Marion Nachon, Mariek Schmidt, Jeffrey Berger, Samuel M. Clegg, Olivier Forni, Craig Hardgrove, Noureddine Melikechi, Horton E. Newsom, Violaine Sautter

DOI: 10.1002/2014GL060329

6. Sea-level anomalies exacerbate beach erosion

Ethan J. Theuerkauf, Antonio B. Rodriguez, Stephen R. Fegley andRichard A. Luettich Jr.

DOI: 10.1002/2014GL060544

☆Paleoceanography☆

7. Exploring the dissolution effect on the intrashell Mg/Ca variability of the planktic foraminifer Globigerinoides ruber

Jennifer Fehrenbacher, Pamela Martin

DOI: 10.1002/2013PA002571

8. Late Holocene primary productivity and sea surface temperature variations in the northeastern Arabian Sea: implications for winter monsoon variability

Anna Böll, Andreas Lückge, Philipp Munz, Sven Forke, Hartmut Schulz, V. Ramaswamy, Tim Rixen, Birgit Gaye, Kay-Christian Emeis

DOI: 10.1002/2013PA002579

9. Andean elevation control on tropical Pacific climate and ENSO

Ran Feng, Christopher J. Poulsen

DOI: 10.1002/2014PA002640

☆JGR- Atmosphere☆

10. Radiosonde observational evidence of the impact of an extremely cold SST spot on a mesoscale anticyclone

Hatsumi Nishikawa, Yoshihiro Tachibana, Yusuke Udagawa

DOI: 10.1002/2014JD021538

☆JGR-Oceans☆

11. Seasonal and interannual changes of the Kuroshio intrusion onto the East China Sea Shelf

Chau-Ron Wu, Yi-Chia Hsin, Tzu-Ling Chiang, Yong-Fu Lin, I-Fong Tsui

DOI: 10.1002/2013JC009748

新着論文紹介 ELSEVIER 2014/6/9-15

新着論文紹介 ELSEVIER 2014/6/9-15

☆Quaternary Science Reviews☆

1. Topographic and microclimatic impacts on glaciation of the Denison Range, southwest Tasmania

Kevin Kiernan , Matthew S. McMinn , David Fink

DOI: 10.1016/j.quascirev.2014.05.008

2. Optimising the use of marine tephrochronology in the North Atlantic: a detailed investigation of the Faroe Marine Ash Zones II, III and IV

Adam J. Griggs , Siwan M. Davies , Peter M. Abbott , Tine L. Rasmussen , Adrian P. Palmer

DOI: 10.1016/j.quascirev.2014.04.031

Highlights

•MIS 2-3 tephrostratigraphy for a North Atlantic marine core.

•Geochemical and sedimentological analysis is used to assess tephra taphonomy.

•FMAZ II and IV can be used as isochrons for high-precision correlation studies.

•FMAZ III cannot presently be used as a marine-ice isochron in high-precision studies.

•We provide a protocol for assessing secondary deposition in the North Atlantic.

3. The marine-based NW Fennoscandian ice sheet: glacial and deglacial dynamics as reconstructed from submarine landforms

Tom Arne Rydningen , Tore O. Vorren , Jan Sverre Laberg , Vidar Kolstad

DOI: 10.1016/j.quascirev.2013.02.013

Highlights

► High resolution data revealed excellent details of submarine glacial landforms. ► Estimated palaeo-ice stream velocities during LGM were about 350 m/year. ► A rapid early deglaciation in the troughs was followed by a stepwise recession. ► The deglaciation of the banks was characterized by minor halts and readvances. ► The trough widths probably exerted an important control on the deglacial dynamics.

4. Palaeo-seasonality of the last two millennia reconstructed from the oxygen isotope composition of carbonates and diatom silica from Nar Gölü, central Turkey

Jonathan R. Dean , Matthew D. Jones , Melanie J. Leng , Hilary J. Sloane , C. Neil Roberts , Jessie Woodbridge , George E.A. Swann , Sarah E. Metcalfe , Warren J. Eastwood , Hakan Yiğitbaşıoğlu

DOI: 10.1016/j.quascirev.2012.07.014

Highlights

► Comparing δ¹⁸O from carbonates and diatoms allows insights into seasonality. ► Use of data from lake monitoring to help interpret down-core isotope variations. ► Severe winters inferred 301–801 AD, 921–1071 AD and 1821–1898 AD.

5. Hydrological instability during the Last Interglacial in central Asia: a new diatom oxygen isotope record from Lake Baikal

Anson W. Mackay , George E.A. Swann , Nathalie Fagel , Susanne Fietz , Melanie J. Leng , David Morley , Patrick Rioual , Pavel Tarasov

DOI: 10.1016/j.quascirev.2012.09.025

Highlights

► A new Last Interglacial, isotopic record of diatom silica (δ¹⁸O_diatom) from Lake Baikal was investigated. ► Fluctuations in the isotopic record suggest strong teleconnections with Atlantic meridional overturning circulation. ► Millennial scale variability during Last Interglacial was significantly less pronounced than during the Holocene.

6. Carbon cycling within an East African lake revealed by the carbon isotope composition of diatom silica: a 25-ka record from Lake Challa, Mt. Kilimanjaro

Philip A. Barker , Elizabeth R. Hurrell , Melanie J. Leng , Birgit Plessen , Christian Wolff , Daniel J. Conley , Eddy Keppens , Isla Milne , Brian F. Cumming , Kathleen R. Laird , Chris P. Kendrick , Peter M. Wynn , Dirk Verschuren

DOI: 10.1016/j.quascirev.2012.07.016

7. Morphological analysis and evolution of buried tunnel valleys in northeast Alberta, Canada

N. Atkinson , L.D. Andriashek , S.R. Slattery

DOI: 10.1016/j.quascirev.2012.11.031

Highlights

► Subsurface geologic data documents the distribution of tunnel valleys in NE Alberta. ► Tunnel valleys fills comprise multistory, erosion- to succession-dominated deposits. ► Deposits reflect allogenic and autogenic controls due to a sequence of jökulhlaups. ► Tunnel valley systems evolved time transgressively. ► Evolution is in part related to substrate lithology and subglacial hydraulics.

8. High resolution Lateglacial and early-Holocene summer air temperature records from Scotland inferred from chironomid assemblages

Stephen J. Brooks , Ian P. Matthews , Hilary H. Birks , H.John B. Birks

DOI: 10.1016/j.quascirev.2012.03.007

Highlights

► Lateglacial chironomid-inferred summer air temperatures for two Scottish sites. ► Lateglacial temperature trends are broadly consistent between both sites and NGRIP. ► Local and regional forcing causes between-site differences in climate trends. ► If radiocarbon dating is impossible chronology can be developed based on tephra alone.

9. Holocene temperature variations at a high-altitude site in the Eastern Alps: a chironomid record from Schwarzsee ob Sölden, Austria

Elena A. Ilyashuk , Karin A. Koinig , Oliver Heiri , Boris P. Ilyashuk , Roland Psenner

DOI: 10.1016/j.quascirev.2010.10.008

10. Differentiation of MIS 9 and MIS 11 in the continental record: vegetational, faunal, aminostratigraphic and sea-level evidence from coastal sites in Essex, UK

Helen M. Roe , G. Russell Coope , Robert J.N. Devoy , Colin J.O. Harrison , Kirsty E.H. Penkman , Richard C. Preece , Danielle C. Schreve

DOI: 10.1016/j.quascirev.2009.04.017

11. New evidence for complex climate change in MIS 11 from Hoxne, Suffolk, UK

Nick Ashton , Simon G. Lewis , Simon A. Parfitt , Kirsty E.H. Penkman , G. Russell Coope

DOI: 10.1016/j.quascirev.2008.01.003

☆Chemical Geology☆

12. A new technique to determine element amounts down to femtograms in dust using femtosecond laser ablation-inductively coupled plasma-mass spectrometry

Dorothea S. Macholdt , Klaus Peter Jochum , Brigitte Stoll , Ulrike Weis , Meinrat O. Andreae

DOI: 10.1016/j.chemgeo.2014.06.001

Highlights

•Femtosecond LA-ICP-MS as in-situ technique for sensitive dust analysis

•Fast in-situ analysis of dust for quick data collection using adhesive tape

•Detection limits of elements are in the range of ng g^- 1 and fg

•Elemental distribution maps are convenient to identify minerals or contamination

•Provenance analysis of collected dust samples by element determination

☆Quaternary International☆

13. The Last Interglacial Stage: Definitions and marine highstand, North America and Eurasia

Ervin G. Otvos

DOI: 10.1016/j.quaint.2014.05.010

Key Words

Last Interglacial and early Last Glacial delineations; Sangamon stage and Geosol definition; LIG coastal highstand deposits; Pleistocene pollen stratigraphy; Late Pleistocene climate history

※A special number of Chinese climates

☆Global and Planetary Change☆

14. A 4.2 Million years record of interglacial paleoclimate from sclerochronological data of Florida carbonate platform (Early Pliocene to recent)

Thomas C. Brachert , Markus Reuter , Stefan Krüger , Hans Lohmann , Edward J. Petuch , James S. Klaus

DOI: 10.1016/j.gloplacha.2014.06.001

☆Geochimica et Cosmochimica Acta☆

15. Oxygen isotope signatures of quartz from major Asian dust sources: Implications for changes in the provenance of Chinese loess

Yan Yan , Youbin Sun , Hongyun Chen , Long Ma

DOI: 10.1016/j.gca.2014.04.043

新着論文紹介 AGU/EGU 2014/5/5-11

★AGU★

☆G3☆

1. High-resolution ⁴⁰Ar/³⁹Ar dating using a mechanical sample transfer system combined with a high-temperature cell for step heating experiments and a multicollector ARGUS noble gas mass spectrometer

Jörg A. Pfänder, Blanka Sperner, Lothar Ratschbacher, Albrecht Fischer, Martin Meyer, Martin Leistner, Helmut Schaeben

DOI: 10.1002/2014GC005289

☆Paleoceanography☆

2. Deglacial whole-ocean δ¹³C change estimated from 480 benthic foraminiferal records

Carlye D. Peterson, Lorraine E. Lisiecki andJoseph V. Stern

DOI: 10.1002/2013PA002552

3. Sea surface temperature control on the distribution of far-traveled Southern Ocean ice-rafted detritus during the Pliocene

C. P. Cook, D. J. Hill, T. Flierdt, T. Williams, S. R. Hemming, A. M. Dolan, E. L. Pierce, C. Escutia, D. Harwood, G. Cortese, J. J. Gonzales

DOI: 10.1002/2014PA002625

☆JGR-Oceans☆

4. Dynamical mechanisms for asymmetric SSTA patterns associated with some Indian Ocean Dipoles

Shuangwen Sun, Yue Fang, Tana andBaochao Liu

DOI: 10.1002/2013JC009651

5. The contribution of the Weddell Gyre to the lower limb of the global overturning circulation

Loïc Jullion, Alberto C. Naveira Garabato, Sheldon Bacon, Michael P. Meredith, Pete J. Brown, Sinhue Torres-Valdés, Kevin G. Speer, Paul R. Holland, Jun Dong, Dorothée Bakker, Mario Hoppema, Brice Loose, Hugh J. Venables, William J. Jenkins, Marie-José Messias, Eberhard Fahrbach

DOI: 10.1002/2013JC009725

☆GRL☆

6. Climate-driven changes in chemical weathering and associated phosphorus release since 1850: implications for the land carbon balance

Daniel S. Goll, Nils Moosdorf, Jens Hartmann, Victor Brovkin

DOI: 10.1002/2014GL059471

★EGU★

☆Climate of the Past☆

7. Impact of solar versus volcanic activity variations on tropospheric temperatures and precipitation during the Dalton Minimum

J. G. Anet, S. Muthers, E. V. Rozanov, C. C. Raible, A. Stenke, A. I. Shapiro, S. Brönnimann, F. Arfeuille, Y. Brugnara, J. Beer, F. Steinhilber, W. Schmutz, and T. Peter

doi:10.5194/cp-10-921-2014