Search Results - "Oyabu, Ikumi"

Kinetic fractionation of noble gases in the stratosphere over Japan.

Authors: Sugawara, Satoshi Oyabu, Ikumi Kawamura, Kenji et al.

Source: Atmospheric Chemistry & Physics. 2026, Vol. 26 Issue 2, p1537-1563. 27p.

Identification of 320 000-year-old blue ice at the surface of the Elephant Moraine region, East Antarctica.

Authors: Lee, Giyoon Ahn, Jinho Ju, Hyeontae et al.

Source: Cryosphere. 2025, Vol. 19 Issue 8, p3295-3308. 14p.

The Paleochrono-1.1 probabilistic model to derive optimized and consistent chronologies for several paleoclimatic sites.

Authors: Parrenin, Frédéric Bouchet, Marie Buizert, Christo et al.

Source: EGUsphere; 2/12/2024, p1-33, 33p

Temporal variations of surface mass balance over the last 5000 years around Dome Fuji, Dronning Maud Land, East Antarctica.

Authors: Oyabu, Ikumi Kawamura, Kenji Fujita, Shuji et al.

Source: Climate of the Past. 2023, Vol. 19 Issue 2, p293-321. 29p.

Evolution of layered density and microstructure in near‐surface firn around Dome Fuji, Antarctica.

Authors: Inoue, Ryo Fujita, Shuji Kawamura, Kenji et al.

Source: EGUsphere; 8/17/2023, p1-43, 43p

Fractionation of O2/N2 and Ar/N2 in the Antarctic ice sheet during bubble formation and bubble–clathrate hydrate transition from precise gas measurements of the Dome Fuji ice core.

Authors: Oyabu, Ikumi Kawamura, Kenji Uchida, Tsutomu et al.

Source: Cryosphere. Dec2021, Vol. 15 Issue 12, p5529-5555. 27p.

New technique for high-precision, simultaneous measurements of CH4, N2O and CO2 concentrations; isotopic and elemental ratios of N2, O2 and Ar; and total air content in ice cores by wet extraction.

Authors: Oyabu, Ikumi Kawamura, Kenji Kitamura, Kyotaro et al.

Source: Atmospheric Measurement Techniques. 2020, Vol. 13 Issue 12, p6703-6731. 29p.

The Paleochrono-1.1 probabilistic model to derive a common age model for several paleoclimatic sites using absolute and relative dating constraints.

Authors: Parrenin, Frédéric Bouchet, Marie Buizert, Christo et al.

Source: Geoscientific Model Development. 2024, Vol. 17 Issue 23, p8735-8750. 16p.

Sulphate and chloride aerosols during Holocene and last glacial periods preserved in the Talos Dome Ice Core, a peripheral region of Antarctica.

Authors: Iizuka, Yoshinori Delmonte, Barbara Oyabu, Ikumi et al.

Source: Tellus: Series B. 2013, Vol. 65, p1-N.PAG. 9p.

Antarctic surface temperature and elevation during the Last Glacial Maximum.

Authors: Buizert, Christo Fudge, T. J. Roberts, William H. G. et al.

Source: Science (pre-March 2025). 6/4/2021, Vol. 372 Issue 6546, p1097-1101. 5p. 4 Diagrams.

High-resolution subglacial topography around Dome Fuji, Antarctica, based on ground-based radar surveys over 30 years.

Authors: Tsutaki, Shun Fujita, Shuji Kawamura, Kenji et al.

Source: Cryosphere. Jul2022, Vol. 16 Issue 7, p2967-2983. 17p.

Spatial distribution of vertical density and microstructure profiles in near-surface firn around Dome Fuji, Antarctica.

Authors: Inoue, Ryo Fujita, Shuji Kawamura, Kenji et al.

Source: Cryosphere. 2024, Vol. 18 Issue 1, p425-449. 25p.

The new Kr-86 excess ice core proxy for synoptic activity: West Antarctic storminess possibly linked to Intertropical Convergence Zone (ITCZ) movement through the last deglaciation.

Authors: Buizert, Christo Shackleton, Sarah Severinghaus, Jeffrey P. et al.

Source: Climate of the Past. 2023, Vol. 19 Issue 3, p579-606. 28p.

Chronostratigraphy of the Larsen blue-ice area in northern Victoria Land, East Antarctica, and its implications for paleoclimate.

Authors: Lee, Giyoon Ahn, Jinho Ju, Hyeontae et al.

Source: Cryosphere. Jun2022, Vol. 16 Issue 6, p2301-2324. 24p.

Towards reconstructing the Arctic atmospheric methane history over the 20th century: measurement and modelling results for the North Greenland Ice Core Project firn.

Authors: Umezawa, Taku Sugawara, Satoshi Kawamura, Kenji et al.

Source: Atmospheric Chemistry & Physics. 2022, Vol. 22 Issue 10, p6899-6917. 19p.

Towards reconstructing the Arctic atmospheric methane history over the 20th century: measurement and modeling results for the NGRIP firn.

Authors: Umezawa, Taku Sugawara, Satoshi Kawamura, Kenji et al.

Source: Atmospheric Chemistry & Physics Discussions. 8/31/2021, p1-24. 24p.

Timing of penultimate glacial-interglacial transition from gas measurements of the Dome Fuji ice core, Antarctica.

Authors: Oyabu, Ikumi Kawamura, Kenji Kitamura, Kyotaro

Source: Geophysical Research Abstracts. 2019, Vol. 21, p1-1. 1p.

The penultimate deglaciation: protocol for Paleoclimate Modelling Intercomparison Project (PMIP) phase 4 transient numerical simulations between 140 and 127 ka, version 1.0.

Authors: Menviel, Laurie Capron, Emilie Govin, Aline et al.

Source: Geoscientific Model Development. 2019, Vol. 12 Issue 8, p3649-3685. 37p.

Considerations for drilling site of an oldest ice core around Dome Fuji, Antarctica, based on radar sounding, shallow coring and ice-flow modeling.

Authors: Kawamura, Kenji Abe-Ouchi, Ayako Fujita, Shuji et al.

Source: Geophysical Research Abstracts. 2019, Vol. 21, p1-1. 1p.