JpGU Meeting 2019
Session outline| Multidisciplinary and Interdisciplinary (M) | ||
|---|---|---|
| Session Sub-category | Intersection(IS) | |
| Session ID | M-IS03 | |
| Title | Evolution and variability of the Asian monsoon in Cenozoic global climate changes | |
| Short Title | Evolution and variability of the Asian monsoon | |
| Main Convener | Name | Masanobu Yamamoto |
| Affiliation | Faculty of Environmental Earth Science, Hokkaido University | |
| Co-Convener 1 | Name | Ryuji Tada |
| Affiliation | Department of Earth and Planetary Science, Graduate School of Science, The Univeristy of Tokyo | |
| Session Language | E | |
| Scope | The Asian Monsoon (AM) is a part of interhemispheric atmospheric phenomena that is driven by the thermal gradient between ocean and land. Contrasts of insolation, heat content and latent heat transfer between ocean and land may have affected the behavior of the AM in the past, but the proxy records are occasionally controversial and do not show a clear picture of the AM variability. Recent proxy and modeling studies suggest that glacial pCO2 cycles could be related to the position of southern westerlies, which is sensitive to interhemispheric heat imbalance. Because monsoon is driven by the heat imbalance, knowledge on the variability of the AM is important to understand the behavior of the global climate system. In this session, presentations on the reconstruction of long-term AM variability from various archives such as IODP expedition cores, discussion on its forcing, and the roles of the AM in global climate changes are welcome. | |
| Presentation Format | Oral and Poster presentation | |
| Joint Session with | AGU | |
| Invited Authors | Steven C Clemens (Brown University) David L Dettman (University of Arizona) Liviu Giosan (Woods Hole Oceanographic Institution) Ann E Holbourn (University of Kiel) Wolfgang Kuhnt (University of Kiel) Yoshimi Kubota (National Museum of Nature and Science) | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 30 PM1 | ||||
| 13:45 - 14:00 | MIS03-01 | Reconstruction of Indian summer monsoon variability during the last 1,460,000 years | Masanobu Yamamoto | |
| 14:00 - 14:20 | MIS03-02 | Pleistocene Seawater δ18O reconstructions from the Indian and East Asian Monsoon Regions | Steven C Clemens | |
| 14:20 - 14:40 | MIS03-03 | The Monsoon Erosion Pump | Liviu Giosan | |
| 14:40 - 15:00 | MIS03-04 | East Asian winter monsoon intensity in the Pleistocene based on seasonal land snail shell stable isotope ratios | David L Dettman | |
| 15:00 - 15:15 | MIS03-05 | Reconstruction of ventilation history of the Japan Sea based on physical properties data collected during IODP Exp. 346 | Tomohisa Irino | |
| Oral Presentation May 30 PM2 | ||||
| 15:30 - 15:45 | MIS03-06 | The spatial-temporal patterns of Indian monsoonal variations during the past 80 kyr recorded in NGHP-02 Hole 19B, western Bay of Bengal: Implications from chemical and mineral properties | Yuki Ota | |
| 15:45 - 16:05 | MIS03-07 | 400,000 years millennial scale temperature and rainfall in East Asia deduced from paired Mg/Ca and oxygen isotope of planktic foraminifera from the East China Sea | Yoshimi Kubota | |
| 16:05 - 16:20 | MIS03-08 | Onset and evolution of millennial-scale variability of East Asian Monsoon recorded in the Japan Sea sediments: New data with new interpretation | Ryuji Tada | |
| 16:20 - 16:40 | MIS03-09 | Interhemispheric linkages of Australian and Asian monsoons on a warmer-than-modern Earth | Ann E Holbourn | |
| 16:40 - 17:00 | MIS03-10 | Miocene evolution of the Asian Monsoon from climate and productivity proxies in the Bay of Bengal and South China Sea | Wolfgang Kuhnt | |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 30 AM2 | |||
| MIS03-P01 | Asian dust source variability since 10 Ma based on grain size specific mineral composition at IODP Site U1425 in the Japan Sea | Mui Fa Alison Lee | |
| MIS03-P02 | Sources and formation environment of biomass burning products in Pliocene and Pleistocene marine sediments in the Japan Sea | Song Lu | |
| MIS03-P03 | Variation of mineral dust flux in peat at a high moor on the Mt. Daisetsu during Holocene | Tomohisa Irino | |
| MIS03-P04 | Variations in sea surface environments recorded by algal biomarkers in the Japan Sea off the western coast of Hokkaido (IODP Site U1422) over the last 250 ka | Asako Suzuki | |
| MIS03-P05 | Decadal oscillation in hydrogen stable isotope ratio of long chain fatty acids in Lake Suigetsu sediment core | Masaya Inagaki | |
| MIS03-P06 | Amplitude modulation of sea surface temperature variability in the Bay of Bengal by 400-kyr eccentricity cycle | Masanobu Yamamoto | |