DOI: 10.1002/2015GL067589
论文题名: Asian dust transport during the last century recorded in Lake Suigetsu sediments
作者: Nagashima K. ; Suzuki Y. ; Irino T. ; Nakagawa T. ; Tada R. ; Hara Y. ; Yamada K. ; Kurosaki Y.
刊名: Geophysical Research Letters
ISSN: 0094-9193
EISSN: 1944-8924
出版年: 2016
卷: 43, 期: 6 起始页码: 2835
结束页码: 2842
语种: 英语
英文关键词: Asian dust
; decadal-scale variations
; lake sediment
; Mongolian warming
; ocean biogeochemistry
; westerly
Scopus关键词: Biogeochemistry
; Lakes
; Oceanography
; Sediments
; Storms
; Asian dust
; Decadal-scale variations
; Lake sediments
; Mongolians
; Ocean biogeochemistry
; Westerly
; Dust
; biogeochemistry
; decadal variation
; dust storm
; eolian deposit
; lacustrine deposit
; sediment transport
; trace element
; twentieth century
; westerly
; Chubu
; Fukui
; Honshu
; Japan
; Lake Suigetsu
; Mongolia
; Pacific Ocean
英文摘要: Asian dust has a significant impact on the natural environment. Its variability on multiple timescales modulates the ocean biogeochemistry and climate. We demonstrate that temporal changes in the deposition flux of Aeolian dust recorded in sediments from Lake Suigetsu, central Japan, during the last century exhibit a continuous decreasing trend and a decadal-scale decrease in 1952-1974. The former decreasing trend can be explained by a decrease in the dust storm frequency at source regions due to the warming of Mongolia in the twentieth century, suggesting future decrease of Asian dust transport with further warming in Mongolia. Decadal-scale decrease of Aeolian dust is explained by weaker westerlies in lower latitudes in central Japan, reflecting a weaker Aleutian Low during the corresponding period. Decadal-scale westerly change probably causes north-south shifts of the dominant dust transport path, which affects subarctic northern Pacific Ocean biogeochemistry by changing the micronutrient iron supply. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978319079&doi=10.1002%2f2015GL067589&partnerID=40&md5=255828bf5e3f2a73f1cbc5a6589276f9
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10156
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Research and Development Center for Global Change, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
Recommended Citation:
Nagashima K.,Suzuki Y.,Irino T.,et al. Asian dust transport during the last century recorded in Lake Suigetsu sediments[J]. Geophysical Research Letters,2016-01-01,43(6).