Obrochta Stephen ＯｂｒｏｃｈｔａＳｔｅｐｈｅｎ

Researcher Number	60752540
Other IDs
Affiliation (Current)	2025: 秋田大学, 国際資源学研究科, 教授
Affiliation (based on the past Project Information) *help	2020 – 2024: 秋田大学, 国際資源学研究科, 教授 2016 – 2019: 秋田大学, 国際資源学研究科, 准教授
Review Section/Research Field	Principal Investigator Basic Section 17050:Biogeosciences-related / Basic Section 17030:Human geosciences-related / Geology Except Principal Investigator Medium-sized Section 4:Geography, cultural anthropology, folklore, and related fields / Medium-sized Section 3:History, archaeology, museology, and related fields / Medium-sized Section 17:Earth and planetary science and related fields / Stratigraphy/Paleontology
Keywords	Principal Investigator Baltic Sea / Beryllium / carbonate sedimentology / Great Barrier Reef / tephra identification / age modelling / precipitation history / eruption history / age modeling / stratigraphy / 古気候学 / 第四紀学 … More Except Principal Investigator … More 古海洋 / 古気候 / 完新世 / 同位体 / サンゴ / 沖縄 / 鹿児島 / 年代測定 / 古環境学 / 加速器質量分析 / 氷期間氷期 / 風化 / 侵食 / ベリリウム / 宇宙線生成核種 Less

グレートバリアーリーフ形成時期の古環境復元Principal Investigator
- Principal Investigator
  
  Obrochta Stephen
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 17030:Human geosciences-related
- Research Institution
  Akita University
Geochronological studies for the understanding of the archaeology of the late Pleistocene in the Amami and Okinawa regions
- Principal Investigator
  
  横山祐典
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 3:History, archaeology, museology, and related fields
- Research Institution
  The University of Tokyo
Timing and magnitude of the Scandinavian Ice Sheet contribution to post-glacial sea level risePrincipal Investigator
- Principal Investigator
  
  Obrochta Stephen
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for JSPS Fellows
- Review Section
  
  Basic Section 17050:Biogeosciences-related
- Research Institution
  Akita University
Study to investigate the Holocene Temperature Conundrum
- Principal Investigator
  
  横山祐典
- Project Period (FY)
  2023 – 2027
- Research Category
  
  Fund for the Promotion of Joint International Research (International Collaborative Research)
- Review Section
  
  Medium-sized Section 4:Geography, cultural anthropology, folklore, and related fields
- Research Institution
  The University of Tokyo
A study on Longterm Environmental changes and Wethering
- Principal Investigator
  
  Yokoyama Yusuke
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 17:Earth and planetary science and related fields
- Research Institution
  The University of Tokyo
A study on rapid climate and low latitude atmosphere and ocean coupling.
- Principal Investigator
  
  Yokoyama Yusuke
- Project Period (FY)
  2017 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Stratigraphy/Paleontology
- Research Institution
  The University of Tokyo
Monsoon variability and Holocene sea level in the Nankai RegionPrincipal Investigator
- Principal Investigator
  
  Obrochta Stephen
- Project Period (FY)
  2016 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geology
- Research Institution
  Akita University

All 2023 2022 2021 2020 2019 2018 2017

All Journal Article Presentation

[Journal Article] An initial attempt to date Pleistocene marine terraces in the south coast of Japan using in situ cosmogenic 10Be and 26Al2023
- Author(s)
  Yusuke Yokoyama, Atsunori Nakamura, Gen Nagano, Hideki Maemoku, Yosuke Miyairi, Stephen Obrochta, Hiroyuki Matsuzaki
- Journal Title
  
  Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
  
  Volume: 535 Pages: 255-260
- DOI
  10.1016/j.nimb.2022.11.028
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K14003, KAKENHI-PROJECT-23KK0013
[Journal Article] HOLOCENE OVERWASH OCCURRENCE AGE IN THE ISUMI RIVER LOWLAND, EASTERN BOSO PENINSULA, JAPAN2023
- Author(s)
  Oda Soichiro、Obrochta Stephen P、Fujiwara Osamu、Yokoyama Yusuke、Miyairi Yosuke、Hatakeyama Yoshiya
- Journal Title
  
  Radiocarbon
  
  Volume: null Issue: 5 Pages: 1-11
- DOI
  10.1017/rdc.2023.105
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23KK0013
[Journal Article] Efficient radiocarbon measurements on marine and terrestrial samples with single stage Accelerator Mass Spectrometry at the Atmosphere and Ocean Research Institute, University of Tokyo2022
- Author(s)
  Yokoyama Y., Miyairi Y., Aze T., Sawada C., Ando Y., Izawa S., Ueno Y., Hirabayashi S., Fukuyo N., Ota K., Shimizu Y., Zeng Y., Lan H., Tsuneoka R., Ando K., Nemoto K., Obrochta S., Behrens B., Tam E., Leggett K., Rzeszewicz J., Huang Z., Kondo R., Nagata T.
- Journal Title
  
  Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
  
  Volume: 532 Pages: 62-67
- DOI
  10.1016/j.nimb.2022.10.006
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K01015, KAKENHI-PROJECT-20H00193, KAKENHI-PROJECT-20J21145, KAKENHI-PROJECT-22KJ3182, KAKENHI-PROJECT-21H04379, KAKENHI-PROJECT-21H04523
[Journal Article] Temporal variation in radiocarbon pathways caused by sea-level and tidal changes in the Bonaparte Gulf, northwestern Australia2021
- Author(s)
  Ishiwa Takeshige、Yokoyama Yusuke、Obrochta Stephen、Uehara Katsuto、Okuno Jun'ichi、Ikehara Minoru、Miyairi Yosuke
- Journal Title
  
  Quaternary Science Reviews
  
  Volume: 266 Pages: 107079-107079
- DOI
  10.1016/j.quascirev.2021.107079
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H00193, KAKENHI-PROJECT-21K03685, KAKENHI-PLANNED-17H06321, KAKENHI-PROJECT-23K20887
[Journal Article] Organic carbon accumulation and productivity over the past 130?years in Lake Kawaguchi (central Japan) reconstructed using organic geochemical proxies2020
- Author(s)
  Yamamoto S、Hubert-Ferrari A、Lamair L、Miyata Y、Ochiai S、Nagao S、Miyauchi N、Yoshida K、Fujiwara O、Yokoyama Y、Heyvaert Vanessa M. A.、De Batist M、Boes E.、Bruckner H.、De Rycker K.、Garrett E.、Miyairi Y.、Nakamura A.、Obrochta S.、Riedesel S.、Shishikura M.、Walstra J.、The QuakeRecNankai Team
- Journal Title
  
  Journal of Paleolimnology
  
  Volume: 64 Issue: 4 Pages: 365-377
- DOI
  10.1007/s10933-020-00142-0
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H00193, KAKENHI-PROJECT-20H01344
[Journal Article] A new model of Holocene reef initiation and growth in response to sea-level rise on the Southern Great Barrier Reef2020
- Author(s)
  Sanborn Kelsey L.、Webster Jody M.、Webb Gregory E.、Braga Juan Carlos、Humblet Marc、Nothdurft Luke、Patterson Madhavi A.、Dechnik Belinda、Warner Susan、Graham Trevor、Murphy Richard J.、Yokoyama Yusuke、Obrochta Stephen P.、Zhao Jian-xin、Salas-Saavedra Marcos
- Journal Title
  
  Sedimentary Geology
  
  Volume: 397 Pages: 105556-105556
- DOI
  10.1016/j.sedgeo.2019.105556
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H01168, KAKENHI-PROJECT-16H06309
[Journal Article] A sea-level plateau preceding the Marine Isotope Stage 2 minima revealed by Australian sediments2019
- Author(s)
  Ishiwa Takeshige、Yokoyama Yusuke、Okuno Jun’ichi、Obrochta Stephen、Uehara Katsuto、Ikehara Minoru、Miyairi Yosuke
- Journal Title
  
  Scientific Reports
  
  Volume: 9 Issue: 1 Pages: 1-8
- DOI
  10.1038/s41598-019-42573-4
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13621, KAKENHI-PROJECT-16K05571, KAKENHI-PLANNED-17H06321, KAKENHI-PROJECT-17H01168, KAKENHI-PROJECT-16K01229
[Journal Article] A Rapid, Deterministic Age-Depth Modeling Routine for Geological Sequences With Inherent Depth Uncertainty2019
- Author(s)
  Lougheed B. C.、Obrochta S. P.
- Journal Title
  
  Paleoceanography and Paleoclimatology
  
  Volume: 34 Issue: 1 Pages: 122-133
- DOI
  10.1029/2018pa003457
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05571
[Journal Article] Volcanic influence of Mt. Fuji on the watershed of Lake Motosu and its impact on the lacustrine sedimentary record2018
- Author(s)
  Lamair Laura、Hubert-Ferrari Aur?lia、Yamamoto Shinya、El Ouahabi Meriam、Vander Auwera Jacqueline、Obrochta Stephen、Boes Evelien、Nakamura Atsunori、Fujiwara Osamu、Shishikura Masanobu、Schmidt Sabine、Siani Giuseppe、Miyairi Yosuke、Yokoyama Yusuke、De Batist Marc、Heyvaert Vanessa M.A.
- Journal Title
  
  Sedimentary Geology
  
  Volume: 363 Pages: 200-220
- DOI
  10.1016/j.sedgeo.2017.11.010
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05571, KAKENHI-PROJECT-15KK0151
[Journal Article] Use of high-resolution seismic reflection data for paleogeographical reconstruction of shallow Lake Yamanaka (Fuji Five Lakes, Japan)2018
- Author(s)
  Lamair, L., Hubert-Ferrari, A., Yamamoto, S., Fujiwara, O., Yokoyama, Y., Garrett, E., De Batist, M., Heyvaert, V.M.A. and the QuakeRecNankai Team
- Journal Title
  
  Palaeogeography, Palaeoclimatology, Palaeoecology
  
  Volume: 514 Pages: 233-250
- DOI
  10.1016/j.palaeo.2018.09.028
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H01824, KAKENHI-PROJECT-17H02385, KAKENHI-PROJECT-18H00764, KAKENHI-PROJECT-16K05571, KAKENHI-PROJECT-17K18508, KAKENHI-PROJECT-17H01168
[Journal Article] Assessment of Northeastern Japan Tree-Ring Oxygen Isotopes for Reconstructing Early Summer Hydroclimate and Spring Arctic Oscillation2018
- Author(s)
  Sakashita Wataru、Yokoyama Yusuke、Miyahara Hiroko、Aze Takahiro、Obrochta Stephen P.、Ohyama Motonari、Yonenobu Hitoshi
- Journal Title
  
  Geochemistry, Geophysics, Geosystems
  
  Volume: 19 Issue: 9 Pages: 3520-3528
- DOI
  10.1029/2018gc007634
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-26101002, KAKENHI-PROJECT-17H04492, KAKENHI-PROJECT-15KK0151, KAKENHI-PLANNED-15H05816, KAKENHI-PROJECT-17H01168, KAKENHI-PROJECT-17H02424
[Journal Article] Response of the Great Barrier Reef to sea-level and environmental changes over the past 30,000 years2018
- Author(s)
  Webster Jody M.、Braga Juan Carlos、Humblet Marc、Potts Donald C.、Iryu Yasufumi、Yokoyama Yusuke、Fujita Kazuhiko、Bourillot Raphael、Esat Tezer M.、Fallon Stewart、Thompson William G.、Thomas Alexander L.、Kan Hironobu、McGregor Helen V.、Hinestrosa Gustavo、Obrochta Stephen P.、Lougheed Bryan C.
- Journal Title
  
  Nature Geoscience
  
  Volume: 11 Issue: 6 Pages: 426-432
- DOI
  10.1038/s41561-018-0127-3
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06309, KAKENHI-PROJECT-15KK0151, KAKENHI-PROJECT-17H01168
[Journal Article] Mt. Fuji Holocene eruption history reconstructed from proximal lake sediments and high-density radiocarbon dating2018
- Author(s)
  Obrochta S.P.、Yokoyama Y.、Yoshimoto M.、Yamamoto S.、Miyairi Y.、Nagano G.、Nakamura A.、Tsunematsu K.、Lamair L.、Hubert-Ferrari A.、Lougheed B.C.、Hokanishi A.、Yasuda A.、Heyvaert V.M.A.、De Batist M.、Fujiwara O.
- Journal Title
  
  Quaternary Science Reviews
  
  Volume: 200 Pages: 395-405
- DOI
  10.1016/j.quascirev.2018.09.001
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05676, KAKENHI-PROJECT-18K13624, KAKENHI-PROJECT-16H01824, KAKENHI-PROJECT-16K05571, KAKENHI-PROJECT-17H01168
[Journal Article] The undatables: Quantifying uncertainty in a highly expanded Late Glacial - Holocene sediment sequence recovered from the deepest Baltic Sea basin - IODP Site M00632017
- Author(s)
  Obrochta, S.P., Andren, T., Fazeka, S.Z., Lougheed, B. C., Snowball, I., yokoyama, Y., Miyairi, Y., Kondo, R., Kotilainen, A.T., Hyttinen, O., Fehr, A.
- Journal Title
  
  Geochemistry, Geophysics, Geosystems
  
  Volume: 18 Issue: 3 Pages: 858-871
- DOI
  10.1002/2016gc006697
- Peer Reviewed / Acknowledgement Compliant / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05571, KAKENHI-PROJECT-17K01237, KAKENHI-PROJECT-15KK0151, KAKENHI-PROJECT-17H01168, KAKENHI-PROJECT-15H02956
[Journal Article] Holocene Refreshening and Reoxygenation of a Bothnian Sea Estuary Led to Enhanced Phosphorus Burial2017
- Author(s)
  Dijkstra Nikki、Quintana Krupinski Nadine B.、Yamane Masako、Obrochta Stephen P.、Miyairi Yosuke、Yokoyama Yusuke、Slomp Caroline P.
- Journal Title
  
  Estuaries and Coasts
  
  Volume: 41 Issue: 1 Pages: 139-157
- DOI
  10.1007/s12237-017-0262-x
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05571, KAKENHI-PROJECT-15KK0151, KAKENHI-PROJECT-17H01168
[Journal Article] Relationship between the Northern Pacific Gyre Oscillation and tree-ring cellulose oxygen isotopes in northeastern Japan2017
- Author(s)
  Sakashita Wataru、Miyahara Hiroko、Yokoyama Yusuke、Aze Takahiro、Obrochta Stephen P.、Nakatsuka Takeshi
- Journal Title
  
  Geoscience Letters
  
  Volume: 4 Issue: 1 Pages: 1-11
- DOI
  10.1186/s40562-017-0095-2
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-15KK0151, KAKENHI-PROJECT-25287051, KAKENHI-PROJECT-17H01168
[Journal Article] Segmentation of coring images using fully convolutional neural networks2017
- Author(s)
  Fazekas Szilard Zsolt、Obrochta Stephen、Sato Tatsuhiko、Yamamura Akihiro
- Journal Title
  
  ICITEE 2017
  
  Volume: 2017 Pages: 1-5
- DOI
  10.1109/iciteed.2017.8250490
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05571
[Presentation] ティモール海堆積物に対するベリリウム同位体分析による退氷期における熱帯収束帯移動履歴の復元2023
- Author(s)
  根本夏林, 横山祐典, Stephen Obrochta, 堀池智士
- Organizer
  日本第四紀学会2023年大会
- Data Source
  KAKENHI-PROJECT-23KK0013
[Presentation] Meridional Migrations of the Intertropical Convergence Zone during the Last Deglaciation in the Timor Sea Detected by Beryllium Isotope Analysis2023
- Author(s)
  Karin Nemoto, Yusuke Yokoyama, Stephen P. Obrochta
- Organizer
  AGU Annual Meeting 2023
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23KK0013
[Presentation] 「なまはげ」で撮影したコア画像から抽出した色彩値の分光測色計による較正2023
- Author(s)
  畠山義矢, オブラクタスティーブン, 尾田宗一郎, 井澤せいら, 宮越悠吏, 久保田好美, 入野智久
- Organizer
  日本地球惑星科学連合2023年大会
- Data Source
  KAKENHI-PROJECT-23KK0013
[Presentation] ティモール海におけるベリリウム同位体分析による退氷期の降水量復元2023
- Author(s)
  根本夏林, 横山祐典, Stephen Obrochta
- Organizer
  第9回地球環境史学会年会
- Data Source
  KAKENHI-PROJECT-23KK0013
[Presentation] Meridional migrations of the Intertropical convergence Zone during the last deglaciation in the Timor Sea detected by geochemical analysis2023
- Author(s)
  根本夏林, 横山祐典, 堀池智之, オブラクタスティーブン, 宮入陽介, 阿瀬貴博
- Organizer
  日本地球惑星科学連合2023年大会
- Data Source
  KAKENHI-PROJECT-23KK0013
[Presentation] Establishment of Highly Accurate Age Model Using Radiocarbon Dating of Fossil Pollen Automatically Extracted from Lake Motosu Sediments2023
- Author(s)
  太田耕輔, 横山祐典, 宮入陽介, オブラクタスティーブン, 山本真也, Hubert-Ferrari A., V.M.A. Heyvaert, M. De Batist, 藤原治
- Organizer
  日本地球惑星科学連合2023年大会
- Invited
- Data Source
  KAKENHI-PROJECT-23KK0013
[Presentation] The AO driven climate change from 3 ka to 2 ka detected by an 8000-year record of dust deposition in Lake Motosu, Mt. Fuji2023
- Author(s)
  Karin Nemoto, Yusuke Yokoyama, Stephen Obrochta, Shinya Yamamoto, Yosuke Miyairi, Atsunori Nakamura, Osamu Fujiwara, Aurelia Hubert, Laura Lamair, Vanessa M.A. Heyvaert, Marc DeBatist & the QuakeRecNankai Team
- Organizer
  XXI INQUA CONGRESS
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23KK0013
[Presentation] An 8000-year record of East Asian dust deposition in Lake Motosu2022
- Author(s)
  根本夏林, 横山祐典, オブラクタスティーブン, 山本真也, 宮入陽介, 中村淳路, Lamair Laura, Hubert-Ferrari Aurelia, Heyvaert Vanessa, De Batist Marc, 藤原治, the QuakeRecNankai Team
- Organizer
  日本地球惑星科学連合2022年大会
- Data Source
  KAKENHI-PROJECT-20H00193
[Presentation] Antarctic slope current intensification following Last Glacial Maximum ice retreat2022
- Author(s)
  Bethany C. Behrens, Yusuke Yokoyama, Yosuke Miyairi, Alexandra L Post, Leanne K Armand, Stephen P Obrochta, Naohiko Ohkouchi, Hisami Suga, Takato Takemura, Philip E O'Brien
- Organizer
  日本地球惑星科学連合2022年大会
- Data Source
  KAKENHI-PROJECT-20H00193
[Presentation] 本栖湖における過去8000年間のダスト輸送履歴および気候変動との関連2022
- Author(s)
  根本夏林,横山祐典,Stephen Obrochta,山本真也,宮入陽介,中村淳路,Lamair Laura, Hubert-Ferrari Aurelia, Heyvaert Vanessa, De Batist Marc,藤原治, the QuakeRecNankai Team
- Organizer
  日本第四紀学会2022大会
- Data Source
  KAKENHI-PROJECT-20H00193
[Presentation] Eruption History of Mt. Fuji Further Constrained Through Radiocarbon Dating of Fossil Pollen Automatically Extracted from Lake Motosu Sediments2022
- Author(s)
  Ota K, Yokoyama Y, Miyairi Y, Obrochta S, Yamamoto S, Aurelia H, V.M.A. H, M. De B, Fujiwara O
- Organizer
  24th Radiocarbon
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H00193
[Presentation] 静岡県相良低地のコア試料の貝化石・元素分析結果が示す完新世中期の環境変化2022
- Author(s)
  太田耕輔,藤原治,Stephen Obrochta,宮入陽介,横山祐典
- Organizer
  日本第四紀学会2022大会
- Data Source
  KAKENHI-PROJECT-20H00193
[Presentation] Melting of Totten Glacier, East Antarctica since the Last Glacial Maxima Revealed by Beryllium Isotope Ratios and Grain Size Analysis of Marine Sediment Records2022
- Author(s)
  Zihan Huang, Bethany Behrens, Yosuke Miyairi, Takahiro Aze, Stephen Obrochta, Takato Takemura, Reisuke Kondo, Alexandra Post, Leanne Armand, Philip O'Brien, Yusuke Yokoyama
- Organizer
  AGU fall meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H00193
[Presentation] Radiocarbon dating and differentiation of tsunami deposits from the Isumi River lowland, Eastern Boso Peninsula, Japan2022
- Author(s)
  Soichiro O, Obrochta S, Fujiwara O, Yokoyama Y, Miyairi Y, Hatakeyama Y
- Organizer
  24th Radiocarbon
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H00193
[Presentation] Regional and global forcing of Holocene Totten Glacier retreat from deep-sea sediments perspective2022
- Author(s)
  Zihan Huang, べレンスベサニー, 宮入陽介, 阿瀬貴博, オブラクタスティーブン, 竹村貴人, 近藤玲介, ポストアリックス, リアンアルマンド, オブライエンフィリップ, 横山祐典
- Organizer
  日本地球惑星科学連合2022年大会
- Data Source
  KAKENHI-PROJECT-20H00193
[Presentation] Paleoclimate study in the Indonesian throughflow region using carbon and beryllium isotopes2022
- Author(s)
  Nemoto K, Yokoyama Y, Horiike S, Obrochta S, Miyairi Y, Aze T
- Organizer
  24th Radiocarbon
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H00193
[Presentation] 千葉県房総半島東部夷隅川河口低地における放射性炭素年代測定とオーバーウォッシュによる環境変化2022
- Author(s)
  尾田宗一郎,スティーブン,オブラクタ,藤原治,横山祐典,宮入陽介,畠山義矢
- Organizer
  日本第四紀学会2022大会
- Data Source
  KAKENHI-PROJECT-20H00193
[Presentation] Characteristic of radiocarbon dates in response to sea-level changes in the Bonaparte Gulf, Northwestern Australia2021
- Author(s)
  石輪健樹, 横山祐典, オブラクタスティーブン, 上原克人, 奥野淳一, 池原実, 宮入陽介,
- Organizer
  日本地球惑星科学連合2021年大会
- Data Source
  KAKENHI-PROJECT-20H00193
[Presentation] 14C dating correction method for tectonically active complex deep marine environments at cold seep vents off Eastern Japan: Seawater DIC acquisition by Calpyptogena sp. bivalves2021
- Author(s)
  Kazuhiro Yagasaki, Juichiro Ashi, Yusuke Yokoyama, Stephen Obrochta, Yosuke Miyairi, Shin’ichi Kuramoto
- Organizer
  AMS-15
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H00193
[Presentation] 静岡県相良低地で掘削したコア試料の分析に基づく完新世中期の環境変化の復元2021
- Author(s)
  太田耕輔・藤原治・Stephen Obrochta・宮入陽介・横山祐典
- Organizer
  日本第四紀学会2021大会
- Data Source
  KAKENHI-PROJECT-20H00193
[Presentation] Integrating coral reef paleoecological and paleoenvironmental proxies to reconstruct the Holocene initiation of the Great Barrier Reef2019
- Author(s)
  Kelsey L. Sanborn, Jody Webster, Gregory E. Webb, Juan Carlos Braga, Marc Humblet, Dirk Erler, Marcos Salas-Saavedra, Luke D. Nothdurft, Madhavi A. Patterson, Belinda Dechnik, Susan Warner, Trevor Graham, Richard J. Murphy, Yusuke Yokoyama, Stephen Obrochta, Jian-Xin Zhao
- Organizer
  2019 American Geophysical Union Fall Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H01168
[Presentation] Mid Pleistocene Age for the Great Barrier Reef2019
- Author(s)
  Stephen Obrochta, Wataru Miwa, Kotaro Shirai, Kaoru Kubota, Yusuke Yokoyama, Yosuke Miyairi, Takumi Asada, Jody Webster, Mahyar Mohtadi, Albert Case Hine
- Organizer
  2019 American Geophysical Union Fall Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H01168
[Presentation] An 8,000-year climate record from Lake Motosu, Japan: Implications for the East Asian Monsoon2019
- Author(s)
  マクドナルドセーラ, タイラージョナサン, オブラクタスティーブン, 横山祐典, 宮入陽介, 太田耕輔
- Organizer
  2019年度地球惑星連合大会
- Data Source
  KAKENHI-PROJECT-17H01168
[Presentation] Assessment of Northeastern Japan Tree-Ring Oxygen Isotopes for Reconstructing Early Summer Hydroclimate and Spring Arctic Oscillation2019
- Author(s)
  坂下渉, 横山祐典, 宮原ひろ子, 阿瀬貴博, オブラクタスティーブン, 大山幹成, 米延仁志
- Organizer
  2019年度地球惑星連合大会
- Data Source
  KAKENHI-PROJECT-17H01168
[Presentation] An age-Depth modeling method for improved treatment of uncertainty2018
- Author(s)
  オブラクタスティーブン, Bryan Lockheed, Raimund Muscheler, 横山祐典, 宮入陽介
- Organizer
  日本地球惑星科学連合2018年大会
- Data Source
  KAKENHI-PROJECT-17H01168
[Presentation] A rapid, deterministic age-depth modeling routine for geological sequences with inherent depth uncertainty2018
- Author(s)
  Stephen Obrochta
- Organizer
  AGU Fall meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05571
[Presentation] Paleoearthquakes recorded in the Fuji Five Lakes during the last ca. 6000 years (FujiFive Lakes, Japan)2018
- Author(s)
  Laura Lamair, Aurelia Dominique Hubert-Ferrari, Shinya Yamamoto, Yusuke Yokoyama, Yosuke Miyairi, Ed Garrett, Osamu Fujiwara, Stephen Obrochta, Atsunori Nakamura, Marc De Batist, Vanessa M.A. Heyvaert, QuakeRecNankai Team
- Organizer
  日本地球惑星科学連合2018年大会
- Data Source
  KAKENHI-PROJECT-17H01168
[Presentation] 堆積相解析によるグレートバリアリーフの形成年代特定2018
- Author(s)
  三輪亘, オブラクタスティーブン, 白井厚太郎, 横山祐典, 宮入陽介, ウェブスタージョーディー, ハインアルバート
- Organizer
  日本地球惑星科学連合2018年大会
- Data Source
  KAKENHI-PROJECT-17H01168
[Presentation] An age-Depth modeling method for improved treatment of uncertainty2018
- Author(s)
  Stephen Obrochta
- Organizer
  JpGU Meeting
- Data Source
  KAKENHI-PROJECT-16K05571
[Presentation] Mt.Fuji Holocene eruption history reconstructed from proximal lake sediments and high-density radiocarbon dating2017
- Author(s)
  Obrochta,S.Yokoyama,Y.Yoshimoto,M.Yamamoto,S.Miyairi,Y.Nagano,G.Nakamura,A.Tsunematsu,K.Lamair,L.Hubert-Ferrari,A.Heyaert,V.Heyaert,V.DeBatist,Fujiwara,O.and the QuakeRetNankai
- Organizer
  2017 American Geophysical Union Fall Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H01168
[Presentation] ボナパルト湾の海洋堆積物とglacial isostatic adjustmentモデルによる海洋酸素同位体ステージ2の海水準変動復元2017
- Author(s)
  石輪健樹,横山祐典,奥野淳一,上原克人,池原実,オブラクタスティーブン,
- Organizer
  2017年度地球惑星科学連合大会
- Data Source
  KAKENHI-PROJECT-17H01168
[Presentation] 偏西風・モンスーン強度復元のための富士五湖堆積物の層序学的枠組み2017
- Author(s)
  Stephen Obrochta
- Organizer
  山梨県富士山科学研究所国際シンポジウム2016 　堆積物から噴火の歴史を読み取る―火山山麓の湖から
- Place of Presentation
  山梨県富士山科学研究所
- Invited
- Data Source
  KAKENHI-PROJECT-16K05571
[Presentation] 不可能を可能に！：バルト海の最も深い海盆から得られた膨張コアの後期更新世～完新世年代決定の誤差解明2017
- Author(s)
  Stephen Obrochta
- Organizer
  JpGU Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05571
[Presentation] 不可能を可能に！：バルト海の最も深い海盆から得られた膨張コアの後期更新世～完新世年代決定の誤差解明2017
- Author(s)
  Stephen Obrochta
- Organizer
  日本地球惑星科学連合大会
- Place of Presentation
  幕張メッセ
- Year and Date
  2017-05-20
- Data Source
  KAKENHI-PROJECT-16K05571
[Presentation] Mt. Fuji Holocene eruption history reconstructed from proximal lake sediments and high-density radiocarbon dating2017
- Author(s)
  Stephen Obrochta
- Organizer
  AGU Fall Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05571
[Presentation] Kotilainen Aarno, Hyttinen Outi, Fehr Annick, 不可能を可能に！：バルト海の最も深い海盆から得られた膨張コアの後期更新世～完新世年代決定の誤差解明,2017
- Author(s)
  オブラクタスティーブン,ndr?n Thomas,Fazekas Szil?rd,Lougheed Bryan,Snowball Ian,横山祐典,宮入陽介,近藤玲介,
- Organizer
  2017年度地球惑星科学連合大会
- Data Source
  KAKENHI-PROJECT-17H01168
[Presentation] 高精度多点14C年代測定と富士五湖湖底堆積物を用いた過去 8000 年間の富士山噴火史復元2017
- Author(s)
  長野玄,横山祐典,オブラクタスティーブン,宮入陽介,吉本充宏,山本真也,
- Organizer
  2017年度地球惑星科学連合大会
- Data Source
  KAKENHI-PROJECT-17H01168
[Presentation] Heinrich events and sea level changes: records from uplifted coral terraces and marginal seas2017
- Author(s)
  Yokoyama,Y.Esat,T..Suga,H.Obrochta,S.and Ohkouchi,N.
- Organizer
  2017 American Geophysical Union Fall Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H01168

1. Yokoyama Yusuke (10359648)

# of Collaborated Projects: 6 results

# of Collaborated Products: 40 results
2. 大河内直彦 (00281832)

# of Collaborated Projects: 2 results

# of Collaborated Products: 2 results
3. 平林頌子 (40835641)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. 千代延俊 (40526430)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. 窪田薫 (80774075)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. 阿瀬貴博 (20726898)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. 尾崎和海 (10644411)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. Tyler Jonathan

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. BEHRENS BETHANY

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. MIYAIRI Yosuke

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
11. KONDO Reisuke

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
12. 中村淳路

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
13. 山本真也

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
14. 大山幹成

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
15. 米延仁志

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
16. 石輪健樹

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
17. 管浩伸

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
18. 藤田和彦

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
19. 小野林太郎

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
20. 藤田喜久

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Obrochta Stephen Ｏｂｒｏｃｈｔａ Ｓｔｅｐｈｅｎ

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グレートバリアーリーフ形成時期の古環境復元Principal Investigator

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Geochronological studies for the understanding of the archaeology of the late Pleistocene in the Amami and Okinawa regions

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Timing and magnitude of the Scandinavian Ice Sheet contribution to post-glacial sea level risePrincipal Investigator

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Study to investigate the Holocene Temperature Conundrum

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A study on Longterm Environmental changes and Wethering

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A study on rapid climate and low latitude atmosphere and ocean coupling.

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Monsoon variability and Holocene sea level in the Nankai RegionPrincipal Investigator

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[Journal Article] An initial attempt to date Pleistocene marine terraces in the south coast of Japan using in situ cosmogenic 10Be and 26Al2023

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[Journal Article] HOLOCENE OVERWASH OCCURRENCE AGE IN THE ISUMI RIVER LOWLAND, EASTERN BOSO PENINSULA, JAPAN2023

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[Journal Article] Efficient radiocarbon measurements on marine and terrestrial samples with single stage Accelerator Mass Spectrometry at the Atmosphere and Ocean Research Institute, University of Tokyo2022

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[Journal Article] Temporal variation in radiocarbon pathways caused by sea-level and tidal changes in the Bonaparte Gulf, northwestern Australia2021

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[Journal Article] Organic carbon accumulation and productivity over the past 130?years in Lake Kawaguchi (central Japan) reconstructed using organic geochemical proxies2020

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[Journal Article] A new model of Holocene reef initiation and growth in response to sea-level rise on the Southern Great Barrier Reef2020

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[Journal Article] A sea-level plateau preceding the Marine Isotope Stage 2 minima revealed by Australian sediments2019

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Obrochta Stephen ＯｂｒｏｃｈｔａＳｔｅｐｈｅｎ