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| 1 | The relationships among aerosol optical depth, ice, phytoplankton and dimethylsulfide and the implication for future climate in the Greenland Sea显示文摘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. | QU Bo GABRIC Albert J. ZHAO Li SUN Wenjing LI Hehe GU Peijuan JIANG Limei ZENG Meifang | 2018 | Acta Oceanologica Sinica2018，37，5： | 4 |
| 2 | 基于二甲基硫模型预测北极海表温度的研究进展显示文摘生源硫化物二甲基硫(DMS),是参与全球硫循环的最主要硫化物,也是海洋最主要的挥发性硫化物.DMS海空通量将影响大气的云凝结核(CCN),从而改变区域乃至全球气候.文章对DMS的几种模型进行了介绍和比较,其中较为详细地介绍了由Gabric等人建立的二甲基硫模型(G93模型)以及基于该模型预测北极地区海表温度的相关结论.指出在北极洋与1×CO2条件下相比,3×CO2条件下DMS年际综合通量会增长了86%.因此,海表温度也相应地有所增长. | 孙文静 瞿波 | 2015 | 南通大学学报(自然科学版)2015，14，2： | 2 |
| 3 | Simulated perturbation in the sea-to-air flux of dimethylsulfi de and the impact on polar climate显示文摘Marine biogenic emission of dimethylsulfi de(DMS)has been well recognized as the main natural source of reduced sulfur to the remote marine atmosphere and has the potential to aff ect climate,especially in the polar regions.We used a global climate model(GCM)to investigate the impact on atmospheric chemistry from a change to the contemporary DMS fl ux to that which has been projected for the late 21 st century.The perturbed simulation corresponded to conditions that pertained to a tripling of equivalent CO 2,which was estimated to occur by year 2090 based on current worst-case greenhouse gas emission scenarios.The changes in zonal mean DMS fl ux were applied to 50°S–70°S Antarctic(ANT)and 65°N–80°N Arctic(ARC)regions.The results indicate that there are clearly diff erent impacts after perturbation in the southern and northern polar regions.Most quantities related to the sulfur cycle show a higher increase in ANT.However,most sulfur compounds have higher peaks in ARC.The perturbation in DMS fl ux leads to an increase of atmospheric DMS of about 45%in ANT and 33.6%in ARC.The sulfur dioxide(SO 2)vertical integral increases around 43%in ANT and 7.5%in ARC.Sulfate(SO 4)vertical integral increases by 17%in ANT and increases around 6%in ARC.Sulfur emissions increases by 21%in ANT and increases by 9.7%in ARC.However,oxidation of DMS by OH increases by 38.2%in ARC and by 15.17%in ANT.Aerosol optical depth(AOD)increases by 4%in the ARC and by 17.5%in the ANT,and increases by 22.8%in austral summer.The importance of the perturbation of the biogenic source to future aerosol burden in polar regions leads to a cooling in surface temperature of 1 K in the ANT and 0.8 K in the ARC.Generally,polar regions in the Antarctic Ocean will have a higher off setting eff ect on warming after DMS fl ux perturbation. | Bo QU Albert JGABRIC Rebecca JACKSON | 2021 | Journal of Oceanology and Limnology2021，39，1： | 1 |
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