Ohkouchi Naohiko

2018 - 2022 Reconstruction of eruption history of Mt. Fuji based on compound-specific radiocarbon dating of lake sediment

2017 - 2022 過去の大規模な気候変動における氷床・海洋・大気の相互作用の解明

2018 - 2021 Presence and chirality of sugars formed in the early solar system: a new origin of biomolecule

2017 - 2020 A study on rapid climate and low latitude atmosphere and ocean coupling.

2016 - 2019 Deepen the nitrogen cycle in the paleoceanography

2014 - 2017 Detection of carbon from deep mantle

2014 - 2017 Ice sheet fluctuations in the past and global climate changes

2013 - 2016 Ecological roles of large-sized jellyfish in symbiosis

2013 - 2016 Development of molecular level isotope techniques to analyze ecosystems

2013 - 2016 Development of sediment chronologies with amino acid radiocarbon dating

2013 - 2016 Understanding the interaction between abrupt climate change and glacial cycle using earth system modeling

2013 - 2015 A search of novel surrogates of sterols in anaerobic eukaryotes

2010 - 2013 Investigation of paleo-nitrogen cycle

2007 - 2012 Promoting research in Integrated Ocean Drilling Program (IODP): towards establishing the international leadership

2008 - 2009 Development of enantiomer-specific isotope analysis (ESIA) of amino acids

2007 - 2009 Reconstruction of West Antarctic Ice Sheet during the Holocene

2007 - 2008 海洋表層における光従属栄養プロセスの解析

2006 - 2008 Reconstruction and system analyses of the global events of the Earth during the Paleoproterozoic

2005 - 2007 HIGH RESOLUTIONAL RECONSTRUCTION OF TROPICAL ENVIRONMENTS AND EVALUATION OF LINKAGE BETWEEN HIGHLATITUDE ICEASHEETSAND LOALATITUDE ENVIRONMENTS

2004 - 2007 Shallow water chemosynthetic assemblages occur in response to glacio-eustasy

2003 - 2005 High resolution analysis of paleoenvironment and material transport during the hot-house Earth system

2002 - 2004 Study of snowball Earth events and rise of the atmospheric oxygen based on geologicalg survey of glacial sediments of the Paleoproterozoic

2002 - 2004 The study of impact of Antarctic ice melting event since Last Glacial Maximum for global environmental change

2001 - 2002 硫化水素生物圏の提唱とその実態の解明 -地下生物圏に関する基礎的研究-

1998 - 2001 AMS radiocarbon measurements of individual organic molecules : making preparative capillary GC system and its application to geochemical samples

1998 - 2000 Environmental changes from greenhouse earth to icehouse earth through a study of chalk/black shale sequence

1998 - 2000 Studies on chemistry and cycles of halogens in the troposphere

1997 - 2000 Organic geochemistry of polar ice and snow

1998 - 1999 北太平洋高緯度域における氷床触解期の海洋表層水温の変動特性の解明

1997 - 1998 不飽和脂肪酸の光化学的変質に関する実験的研究:古大気の酸化能力推定法の検討

1997 - 1997 黒色頁岩の形成が地球環境へ及ぼしたインパクトの定量的評価

1996 - 1996 黒色頁岩:その形成メカニズムと物質循環モデルの構築