Research Project
Grant-in-Aid for Scientific Research (A)
We have developed cutting-edge techniques to perform multi-parameter analyses of mineral dust deposited onto the Antarctic ice sheet. Using these methods, we have analyzed mineral dust in Dome Fuji deep ice core. High resolution and accurate analyses using our CFA (Continuous Flow Analysis) system show that dust flux and CO2 concentration were highly correlated throughout the last deglacial period. Detailed analyses of the ion data suggest that continental gypsum might be an important source of non-sea-salt sulfate during cold glacial periods. We have found that dust originates from different sources during Holocene and that different elements show different ratios of particulate and soluble fractions of dust.
ダストは放射強制力に影響を及ぼすとともに、氷床・氷河や海氷上に堆積して雪氷面のアルベドを低下させ、融解を促進するため、気候・環境変動や海面変動と深い関わりを持っている。また、CO2濃度の変動とも深い関わりを持っていると考えられ、本研究で得られたダストの特性、動態、時間変動、CO2変動との関係に関する知見は、CO2の変動や気候変動のメカニズムの解明や将来予測の高精度化に大きく貢献することが期待される。
All 2019 2018 2017 2016 2015 Other
All Int'l Joint Research (5 results) Journal Article (16 results) (of which Int'l Joint Research: 7 results, Peer Reviewed: 16 results, Open Access: 14 results, Acknowledgement Compliant: 4 results) Presentation (64 results) (of which Int'l Joint Research: 25 results, Invited: 2 results) Remarks (2 results)
Geophysical Research Letters
Volume: 46 Issue: 1 Pages: 11-18
10.1029/2018gl080475
GEOCHEMICAL JOURNAL
Volume: 52 Issue: 2 Pages: e7-e14
10.2343/geochemj.2.0519
130006708587
Nature
Volume: 563 Issue: 7733 Pages: 681-685
10.1038/s41586-018-0727-5
Rapid Communications in Mass Spectrometry
Volume: 32 Issue: 23 Pages: 1991-1998
10.1002/rcm.8275
Nature Communications
Volume: 9 Issue: 1 Pages: 1-11
10.1038/s41467-018-03328-3
化学と教育
Volume: 265 Pages: 338-339
130006301068
Volume: 51 Issue: 3 Pages: 293-298
10.2343/geochemj.2.0458
130006837068
Science Advances
Volume: 3 Issue: 2 Pages: 1-13
10.1126/sciadv.1600446
120005981371
Journal of Raman Spectroscopy
Volume: 48 Issue: 3 Pages: 448-452
10.1002/jrs.5040
Tellus B
Volume: 68 Issue: 1 Pages: 29285-29285
10.3402/tellusb.v68.29285
Volume: 43 Issue: 11 Pages: 5878-5885
10.1002/2016gl069482
Frontiers in Earth Science
Volume: 4:93 Pages: 1-11
10.3389/feart.2016.00093
Journal of Glaciology
Volume: 該当なし Issue: 231 Pages: 1-26
10.1017/jog.2016.16
Bulletin of Glaciological Research
Volume: 34 Issue: 0 Pages: 11-20
10.5331/bgr.16r03
130006847287
Climate of the Past
Volume: 11 Issue: 10 Pages: 1395-1426
10.5194/cp-11-1395-2015
Volume: 11 Issue: 9 Pages: 1127-1137
10.5194/cp-11-1127-2015
http://polaris.nipr.ac.jp/~icrc/NC/htdocs/