The relationships among aerosol optical depth, ice, phytoplankton and dimethylsulfide and the implication for future climate in the Greenland Sea

QU Bo; GABRIC Albert J.; ZHAO Li; SUN Wenjing; LI Hehe; GU Peijuan; JIANG Limei; ZENG Meifang

doi:10.1007/s13131-018-1210-8

格陵兰海气溶胶光学深度、海冰、浮游植物与二甲基硫的关系及其对未来气候的影响

doi: 10.1007/s13131-018-1210-8

1.
南通大学理学院, 南通 226019, 中国
2.
School of Environment, Griffith University, Nathan, Qld 4111, Australia
3.
句容碧桂园学校, 镇江 212400, 中国
4.
中科软件股份有限公司, 北京100190, 中国
5.
南京康尼新能源汽车零件部有限公司, 南京 210000, 中国
6.
南通理工学院基础教学学院南通, 226002, 中国
7.
昆山国际学校小学部, 昆山 215300, 中国

基金项目: The National Natural Science Foundation of China under contract No. 41276097.

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- 收稿日期: 2017-09-19
- 修回日期: 2018-12-28

The relationships among aerosol optical depth, ice, phytoplankton and dimethylsulfide and the implication for future climate in the Greenland Sea

1.
School of Science, Nantong University, Nantong 226019, China
2.
School of Environment, Griffith University, Nathan, Qld 4111, Australia
3.
Jurong Country Garden School, Zhenjiang 212400, China
4.
Chinese Sinosoft Company Limited, Beijing 100190, China
5.
Nanjing Kangni New Energy Auto Part Co., Ltd, Nanjing 210000, China
6.
College of Basic Education, Nantong Institute of Technology, Nantong 226002, China
7.
Primary School Department, Kunshan International School, Kunshan 215300, China

摘要

摘要: dimethylsulphide (DMS)的海空通量是海洋生物气溶胶的主要来源之一,对气候（特别是北冰洋的气候）具有重要的辐射影响。利用卫星数据得到的气溶胶光学深度(AOD)作为气溶胶负荷的代表,在夏季和秋季表现的尤其明显。春季海冰的融化是北极气溶胶前体的重要来源。然而,早春的高浓度气溶胶可能与南方大陆污染的平流有关(北极霾)。更高的AOD通常在研究区域的南部出现。海冰浓度(SIC)和AOD呈正相关,而云盖(CLD)和AOD则呈负相关。SIC和CLD的季节性峰值均在AOD峰值的前一个月。AOD与SIC之间存在强烈的正相关关系。融冰与叶绿素（CHL)几乎在3月至9月呈正相关,但与春季和初夏的AOD呈负相关。春季和初夏较高的AOD有可能是由融冰和春季强风在该地区的结合影响。由于春季风的升高和冰的融化,在春季出现了DMS通量的峰值。从3月到五月,DMS浓度和AOD及融冰都呈正相关。早秋季升高的AOD可能与浮游植物合成的生物气溶胶的排放有关。到2100年，格陵兰海的DMS通量将增加3倍以上。生物气溶胶的显著增加可以部分抵消格陵兰海的增温现象。
- 二甲基硫通量 /
- 海冰 /
- 叶绿素 /
- 气溶胶光学厚度 /
- 格陵兰海
Abstract: The sea-to-air flux of dimethylsulphide (DMS) is one of the major sources of marine biogenic aerosol, and can have an important radiative impact on climate, especially in the Arctic Ocean. Satellite-derived aerosol optical depth (AOD) is used as a proxy for aerosol burden which is dominated by biogenic aerosol during summer and autumn. The spring sea ice melt period is a strong source of aerosol precursors in the Arctic. However, high aerosol levels in early spring are likely related to advection of continental pollution from the south (Arctic haze). Higher AOD was generally registered in the southern part of the study region. Sea ice concentration (SIC) and AOD were positively correlated, while cloud cover (CLD) and AOD were negative correlation. The seasonal peaks of SIC and CLD were both one month ahead of the peak in AOD. There is a strong positive correlation between AOD and SIC. Melting ice is positively correlated with chlorophyll a (CHL) almost through March to September, but negatively correlated with AOD in spring and early summer. Elevated spring and early summer AOD most likely were influenced by combination of melting ice and higher spring wind in the region. The peak of DMS flux occurred in spring due to the elevated spring wind and more melting ice. DMS concentration and AOD were positively correlated with melting ice from March to May. Elevated AOD in early autumn was likely related to the emission of biogenic aerosols associated with phytoplankton synthesis of DMS. The DMS flux would increase more than triple by 2100 in the Greenland Sea. The significant increase of biogenic aerosols could offset the warming in the Greenland Sea.
- dimethylsulfide flux /
- sea ice /
- chlorophyll /
- aerosol optical depth /
- Greenland Sea

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参考文献(35)

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格陵兰海气溶胶光学深度、海冰、浮游植物与二甲基硫的关系及其对未来气候的影响

doi: 10.1007/s13131-018-1210-8

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The relationships among aerosol optical depth, ice, phytoplankton and dimethylsulfide and the implication for future climate in the Greenland Sea

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