2026 JpGU-AGU Joint Meeting

2026年5月24日から29日まで、千葉・幕張で開催された JpGU-AGU Joint Meeting 2026 に横山研究室のメンバーが参加しました。

会期中、研究室の多くのメンバーが口頭発表やポスター発表を行い、それぞれの研究成果を国内外の研究者の方々に紹介する貴重な機会となりました。また、学会期間中の夜には懇親の場もあり、研究室内外の交流を深めることができました。

全体を通して、とても有意義で実り多い一週間となりました。今後もこのような機会を大切にし、毎年継続して参加していければと思います。

Members of the Yokoyama Laboratory participated in the JpGU-AGU Joint Meeting 2026, held in Makuhari, Chiba, from May 24 to 29, 2026.

During the meeting, many of our lab members gave oral and poster presentations, providing a valuable opportunity to share our research with scientists from Japan and abroad. We also enjoyed several evening gatherings during the conference period, which allowed us to deepen our connections both within and beyond the laboratory.

Overall, it was a very meaningful and fruitful week. We hope to continue taking part in such opportunities every year in the future.

  

1)  ポスター会場の様子
1) View of the poster session venue

2)  カリフォルニア大学バークレー校、台湾科学アカデミー、秋田大（スティーブ）、シンガポール南洋工科大、東大（私）、ケベック大（Jean-Carlos)の写真。幕張駅前にて。
2) Photo taken in front of Makuhari Station with members from the University of California, Berkeley; Academia Sinica, Taiwan; Akita University (Steve); Nanyang Technological University, Singapore; the University of Tokyo (myself); and Université du Québec (Jean-Carlos)

3)  新型加速器の前にて。EGU (ヨーロッパ地球科学会）President、AOGS (アジアーオセアニア地球惑星科学会）Secretary、キャンベラ大（オーストラリア）の研究者のラボツアーの際に撮った写真
3) Photo taken in front of the new accelerator during a lab tour with the President of the European Geosciences Union (EGU), the Secretary of the Asia Oceania Geosciences Society (AOGS), and a researcher from the University of Canberra, Australia

4)  私がコンビーナしたユニオンセッションの参加者の一部と研究室メンバーの集合写真
4) Group photo with some participants of the Union Session I convened and members of our laboratory

5)  阪本君のポスター発表の様子
5) Sakamoto’s poster presentation

6)  ベサニーのポスター発表の様子
6) Bethany’s poster presentation

7)  シシの口頭発表の様子
7)  Shish's oral presentation

New Papers (Nature, Science, etc.) 2026/06/23~2025/06/29

 Nature

 

N/A

 

Science

 

N/A

 

PNAS

1. Shelf-invading low-oxygen waters control Cenozoic organic carbon burial rates. Rosalind E. M. Rickaby, Thomas J. Wood, Zunli Lu, and Christian J. Bjerrum

 

Geology

 

N/A

Nature geoscience

1. Contrasting drivers of South Asian summer and winter monsoon evolution during the last deglaciation. Igor Obreht, Andreas Lückge, Mahyar Mohtadi, Petra Zahajská, Enno Schefuß, Denis Scholz, Lars Wörmer, Petter Hällberg, Alexander Budsky, Florian Adolphi, Gerald H. Haug, Martin Grosjean & Kai-Uwe Hinrichs 

1. Opposing hydroclimate extremes in Central and mainland Southeast Asia over past millennium. Na Wang, Sylvia Dee, Jun Hu & Kaustubh Thirumalai 

Nature communications

 

1. Volcanic eruptions caused weakening AMOC during the preindustrial past millennium. Kefan Chen, Zhengyu Liu, Liang Ning, Jian Liu, Lili Lei, Michael E. Mann, Mi Yan, Weiyi Sun, Haohao Sun, Wenqing Hu, Peng Gu, Yuntao Bao, Yanmin Qin, Fangmiao Xing, Lingwei Li, Jinbo Du & Qin Wen

1. Abrupt permafrost thaw drives exceptional carbon release across the Tibetan Plateau. Yunjie Jia, Chunling Zhang, Mei Mu, Xinlong Du, Jinyue Song, Yuguo Wei, Yongqi Ge, Kun Li, Hebin Liu, Pengsi Lei, Xiaoqing Peng, Zhuoxuan Xia, Lingcao Huang, Rongkun Liu, Sonam Wangchuk, Yuanhe Yang, Lin Liu & Cuicui Mu 

1. Algal δ13C reveals climate changes during the Cambrian Explosion. Chao Chang, Mingyu Zhao, Pengcheng Ju, Dongjing Fu, Ruiyun Li, Junfeng Guo, Kangjun Huang, Mingkun Wang, Linhao Cui, Yuning Yang, Mengyin Wu, Elena Yu. Golubkova, Dmitrii V. Grazhdankin, Robert R. Gaines & Xingliang Zhang 

 

Nature climate change

 

1. Multi-centennial response of marine carbon pumps to global warming. Samar Khatiwala, Olivia Strachan & Andreas Schmittner 

 

Nature scientific reports

 

1. Simulating 135 years of post-hatchling sea turtle dispersal in a dynamic North Atlantic Ocean. Michael D. Arendt & Nathan F. Putman 

1. Atlantic multidecadal oscillation modulates the impact of precipitation extremes on crop yields in Africa. Haris Majeed, Carmen H. Logie & Daniyal Zuberi 

1. Geological, land use and biological influences on carbon cycling and CO2 degassing in the Danube River. Jan Maier & Johannes A. C. Barth 

1. Sea of Okhotsk warming impacts adult return abundance of southwestern marginal Chum salmon populations over four decades. Beom-Sik Kim, Chang-Keun Kang & Chung Il Lee

1. The distribution of dissolved cadmium and its isotopes across the subarctic Pacific Ocean. H. R. Hunt, J. Malloy & T. M. Conway

 

Science Advances

 

N/A

New Papers (AGU, etc.) 2026/6/9 - 2026/6/16

 

Geochemistry, Geophysics, Geosystems

1. Reconstructing the Exhumation and Paleo-Earthquake History of a Submarine Normal Fault from Preserved Markers at the Seafloor (Roseau Fault, Lesser Antilles, France) - Frédérique Leclerc, Jérémy Billant, Chloé Seibert, Javier Escartin, Nathalie Feuillet, Alex Hughes, Sabine Schmidt, Laurence Le Callonnec

Geophysical Research Letters

2. Windblown Diatoms for Reconstructing Westerly Wind Variability in the South Atlanic Sector of the Southern Ocean - Dieter R. Tetzner, Elizabeth R. Thomas, Claire S. Allen, Delia Segato, Shaun Miller

3. Satellite-Based Assessment of Methane Emissions from the Darvaza Gas Crater - Adriana Valverde, Itziar Irakulis-Loitxate, Javier Gorroño, Zhipeng Pei, Javier Roger, Luis Guanter

4. Nonlinear Extreme-Heat Responses to the Spatial Progression of Deforestation in the Maritime Continent - Ting-Hui Lee, Chun-Hung Li, Hsin Hsu, Jie Hsu, Min-Hui Lo

5. Anthropogranic Pollution Accounts for a substantial part of cloud condensation nuclei in North African Dust Layer - Adrian Walser, Agnieszka Kupc, Nathalie Benker, Maximilian Dollner, Bernd Heinold, Konrad Kandler, Thomas Bjerring Kristensen, Thomas Müller, Anne Tipka, Petra Seibert, Ina Tegen, Bernadett Weinzierl

Journal of Geophysical Research: Oceans

6. Trace Metal Sources, Cycling, and Distributions During Spring in Daya Bay, China - Yuncong Ge, Chunxue Wang, Yulong Huang, Futao Fang, Ziang Li, Ziyuan Jiang, Zhuoyi Zhu, Zhu Zhu, Ruifeng Zhang

7. Subsurface Ventilation Processes in a Wind-Driven Coastal System: Insights from the Gulf of Oristano (Italy) - Andrea Cucco, Giovanni Quattrocchi, Alberto Ribotti, Andrea Satta, Tasneem Ahmed, Jacobo Martin, Roberto Sorgente, Angelo Perilli, Fabio Antognarelli, James Dariush Karimi, Massimo Salvatore Giovanni Marras, Roberto Brundu, Matteo Sinerchia

Paleoceanography and Paleoclimatology

8. Improved Constraints on Andean Glaciations from the Lake Titicaca Continental Drilling Record - Victoria L. Todd, Timothy M. Shanahan, Daniel Stockli, Axel K. Schmitt, Steven Forman, Sherilyn C. Fritz, Paul A. Baker, Geoffrey O. Seltzer

Climate of the Past

9. Quantitative climate reconstruction from sedimentary ancient DNA: framework, validation and application - Ulrike Herzschuh, Thomas Böhmer, Weihan Jia, and Simeon Lisovski

Geological Society of America Bulletin

10. A high-resolution framework for urban pluvial flood risk mapping - Anastasia Vogelbacher, Malte von Szombathely, Marc Lennartz, Benjamin Poschlod, and Jana Sillmann

New Papers (Nature, Science, etc.) 2026/06/02~2025/06/08

Nature 

Earth’s east–west albedo symmetry

Jianhao Zhang, Jake J. Gristey & Graham Feingold

Queen cell architecture shapes honey bee queen development

Yu Fang  (房宇), Beibei Ma  (马贝贝), Xiaolu Jin  (金晓露), Anja Buttstedt, Yahya Al Naggar, Kathy Darragh, Huafeng Tian  (田华峰), Yin Zhu  (朱荫), Guan Yang  (杨冠), Yiying Yang  (杨一颖), Yuan Huang  (黄苑), Wanli Li  (李万里), Rumeng Xu  (徐如梦), Jianke Li  (李建科), Fuliang Hu  (胡福良), Liming Wu  (吴黎明), Wenjun Peng  (彭文君), Xiaofeng Xue  (薛晓锋), Boris Baer & Kai Wang  (王凯)

Science

Two decades of human- and climate-induced groundwater storage shifts in Brazil

Augusto Getirana, Clyvihk Renna Camacho, Maria Antonieta A. Mourão, and Otto Corrêa Rotunno Filho

A global internal tide modeling framework for improving satellite observations of fine-scale ocean circulation

Badarvada Yadidya, Brian K. Arbic, Edward D. Zaron, Jay F. Shriver, Maarten C. Buijsman, Eric P. Chassignet, Loren Carrère

Observational constraints from global ice-phase fraction indicate moderate climate sensitivity

Rui Zhou, Tingfeng Dou, Chen Zhou, Ivy Tan, Deliang Chen, Gaojie Xu, Yifan Yang, Xianda Gong, Xiaoming Ju, Aihui Wang, and Cunde Xiao

Near-inertial internal waves funneled into Taylor caps shape seamount tops, with implications for biodiversity in the deep ocean

Xiaohui Xie, Lixin Qu, Ming Li, Leif Thomas, Dake Chen, Lei Zhou, Dongsheng Zhang, Jiannan Wang, Hao Pan, Chengcheng Shen, and Wenting Ren

PNAS

Mapping CO2 fixation to two effective parameters: A framework toward data-informed species and model comparison

Andreas Stillits, Teresa E. Knudsen, and Ala Trusina

Aerobic soil bacteria adapt to hypoxia by hybridizing fermentation with carbon storage

David L. Gillett, Thilini Koralegedara, Tess F. Hutchinson, +22 , and Chris Greening

Climate change, inequality, and childhood stunting in African countries

Nabin Pradhan, Elizabeth Ludwig-Borycz, and Arun Agrawal

Geology

The Triassic carbon cycle in turmoil: A 50-m.y. journey from extinction to renewal Open Access

Yadong Sun; Linlin Ma; Michael M. Joachimski; Sylvain Richoz; Zaitian Zhang; Erdan Huang; Tian Wang; Leopold Krystyn; Xulong Lai

Nature Geoscience

Geoparks and the future of geoscience outreach

Iain Stewart, José Brilha, Sophie Justice & Ozlem Adiyaman Lopes

Ice-sheet regime shifts with climate warming

Nicholas R. Golledge, Tim R. Naish, Daniel P. Lowry, Julianne Burns, Peter U. Clark, Georgia Grant, Hana Ishii, Hanna Knahl, Richard H. Levy, Robert M. McKay & Michael E. Weber

Natural forest expansion is a larger carbon sink than secondary forests in moist tropics

Yihang Zhang, Viola H. A. Heinrich, Clément Bourgoin, Xia Wang, Xiaodong Li, Yun Du & Peter M. Atkinson

A fan-shaped subglacial basin province in East Antarctica formed by rotational extension

Egidio Armadillo, Daniele Rizzello, Pietro Balbi, Alessandro Ghirotto, Davide Scafidi, Guy J. G. Paxman, Andrea Zunino, Fausto Ferraccioli, Laura Crispini, Andreas Läufer, Frank Lisker, Antonia Ruppel, Danilo Morelli & Martin Siegert

Variable contributions of vertical land motion to sea-level change inferred at tide gauges

Sönke Dangendorf, Julius Oelsmann, Jerry X. Mitrovica, Torbjörn E. Törnqvist, Christopher G. Piecuch, Roger Creel, William Coronel, Philip R. Thompson, Cynthia Ebinger & Thomas Wahl

Nature Communications

Implications of regional variations in climate change vulnerability and mitigation behaviour for social-climate dynamics

Amrita Punnavajhala, Timothy M. Lenton, Chris T. Bauch & Madhur Anand

Nature Climate Change

Respecting tenure and the bundle of rights in blue carbon guidance

Sarah Lawless, Philippa J. Cohen, Rayhan Dudayev, Elizabeth Evans-Illidge, Catherine E. Lovelock, Bob Muir, Emily Ogier, Sisir Pradhan & Tiffany H. Morrison

A fixed methane filter maximizes freshwater emissions under warming

Sarah F. Harpenslager, Kate Randall, Yizhu Zhu, Michelle C. Jackson, Ian Sanders, Bruno Gallo, Danielle Harris, Hannah Prentice, Yulia V. Bespalaya, Olga V. Aksenova, Alexander Milner, Tom C. Cameron, Boyd A. McKew, Eoin J. O’Gorman, Gabriel Yvon-Durocher, Nikolai Friberg, Kevin J. Purdy, Guy Woodward, Alex J. Dumbrell & Mark Trimmer

High-latitude Southern Ocean warming hotspot induced by ocean mesoscale eddies

Dapeng Li, Zhao Jing, Wenju Cai, Jiuxin Shi, Zhi Li, Junde Li & Lixin Wu

Personal experiences matter for climate action

Gabrielle Wong-Parodi

Scientific Reports

N/A

Science Advances

Observational constraints from global ice-phase fraction indicate moderate climate sensitivity

Rui Zhou, Tingfeng Dou, Chen Zhou, Ivy Tan, Deliang Chen, Gaojie Xu, Yifan Yang, Xianda Gong, Xiaoming Ju, Aihui Wang, and Cunde Xiao

Rise of modern marine fishes captured in an early Paleocene Lagerstätte

Sanaa El-Sayed, Matt Friedman, Belal S. Salem, Abdullah S. Gohar, Shorouq F. Al-Ashqar, Mohamed Amin, Hossam El-Saka, Hadeel Saad, Robert P. Speijer, and Hesham M. Sallam

Tropical impacts of the Southern Ocean underestimated by mean-state biases

Yue Dong, Kezhou Lu, Yen-Ting Hwang, Ruei-Jia Hu, Paulo Ceppi, Philipp Breul, Lettie A. Roach, and Clara Deser

New Papers (AGU, etc.) 2026/5/20 - 2026/6/02

 

Geochemistry, Geophysics, Geosystems

Reconstruction of Methane Emission Over the Past 9,100 Years From Varved Sediments in Lake Xiaolongwan, Northeastern China

Tianshu Chu, Manman Xie, Qing-Zeng Zhu, Wenbin Zhao, Yutao Sun, Guoqiang Chu, Qing Sun

(Journal of Geophysical Research: Biogeosciences Volume 131, Issue 5)

Secular Evolution of Mantle Sulfur Isotopes Since the Archean

J. Eguchi, BA Black, EG Nisbet, Y. Moussallam, G. Georgeais

Decadal Predictions of the Link Between European Hot ‐ Dry Compound Summers and North Atlantic Sea Surface Temperature

Leocardia Zheng, Jana Sillmann, Leonard Borchert

Methane Emission Reductions Slow Stratospheric Ozone Recovery by Amplifying the Potency of Ozone Depleting Substances

James Weber, Maisie Wright, William J. Collins, Keith P. Shine, Fiona M. O'Connor, Gerd A. Folberth, Paul Griffiths, Sam Abernethy

The Global Contribution of Individual Submarine Groundwater Discharge Components to the Ocean

 Y. Levy, H.A. Michael, S. Sahu, Y. Kiro

Multidecadal Atlantic “Warming Hole” Heat Content Variations Are Caused by Ocean Heat Transport, Not by Surface Fluxes

Stefan Rahmstorf, Jan Jendrkowiak, Ruijian Gou, Lijing Cheng, Angel Ruiz-Angulo, Halldór Björnsson

Geophysical Research Letters

Enhanced CO 2 Response and Aging-Related Dynamics Drive a Greater Leaf Area Index Increase in China's Planted Forests in Comparison to Natural Forests

 Yuhang Luo, Yuan Wang, Han Wang, Hongliang Wang, Jiansheng Wu

Historical Volcanic Eruptions Mitigated the Expected Rapid Arctic Sea Ice Decline Prior to 2000

Xinyue Wang, Fei Liu, Wenjie Dong, Qinghua Ding

Constraints on Climate Change Stabilization Based on Observations of Earth's Energy Imbalance

Hervé Douville, Richard P. Allan

Journal of Geophysical Research C. Oceans 

Vertical Decoupling of Marine Heatwaves in the Bay of Bengal: The Contrasting Roles of Atmospheric Forcing and Mesoscale Eddies

Zhenting Mo, Weikang Zhan, Peiya Zhang, Yunchen Liu, Yiqiang Hu, Haigang Zhan, Qingyou H

El Niño - Southern Oscillation Drives Interannual Extremes of Surface Salinity in the Red Sea

Junchuan Sun, Daquan Guo, Sivareddy Sanikommu, George Krokos, Peng Zhan, Ibrahim Hoteit

Changes of the Indonesian Throughflow Spreading in the Indian Ocean During Extreme Indian Ocean Dipole Events

He Jin ,  Mingting Li ,  Dongxiao Wang ,  Shuaichen Xin ,  Arnold L. Gordon ,  Laura K. Gruenburg

Mechanisms of Chlorophyll Enhancement Driven by internal tides in the Oligotrophic Northern South China Sea

Jiexin Xu ,  Yankun Gong ,  Fei Chai ,  Zhiwu Chen ,  Yinghui He ,  Daning Li ,  Shuqun Cai

Contrasting Net Community Production in the Oligotrophic Western North Pacific Subtropical Gyre During the Late Summers of 2020 and 2022: The Roles of Multiple Environmental Drivers

Inhee Lee ,  Doshik Hahm ,  Young Shin Kwon ,  Seon-Eun Lee 

Paleooceanograpahy

Role of Mid ‐ and High ‐ Latitude, Southern Hemisphere Processes for Ushering in the Middle Pleistocene Transition

G. Shaffer ,  E. Fernández Villanueva ,  Cyrus Karas

Hydro - Atmospheric Variability and Dust Dynamics in Southern South America During the Last ~ 62 ka 

Victoria Nogués ,  Diego A. Montecino Jara ,  Nicolás J. Cosentino ,  André O. Sawakuchi ,  Renata Coppo ,  Gabriela Torre ,  Diego M. Gaiera

Laurasian Seaway History During the Early Jurassic From Quantitative Mineralogy and Detrital Zircon Dating

M. Jiang , SP Hesselbo , G. Pieńkowski , E. Krzemińska , JB Riding , A. Uchman , D. Salata , CV Ullmann

Assessing Kuroshio Intrusion–Related Variability Using Paired Coral Cores From Contrasting Reef Environments at Dongsha Atoll, South China Sea 

Ke Lin ,  Yilin Zhang ,  Mohamad Zahid Baharom ,  Yue-Gau Chen ,  Xianfeng Wang

Key Points

• We combined Sr/Ca and δ 18O  data from two contrasting coral sites to separate sea surface temperature and salinity signals
• DS25 (inner lagoon) reflects more local hydrology variability, while DS86 (outer reef) records regional signals and the Kuroshio Intrusion
• Pairing corals from different reef environments helps distinguish local versus regional oceanographic influences