Tellus B最新文献

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Dimensionless Parameterizations of Air-Sea CO2 Gas Transfer Velocity on Surface Waves 空-海CO2表面波上的气体传递速度

Tellus B Pub Date : 2023-04-11 DOI: 10.16993/tellusb.1867

Shuo Li, Alexander V. Babanin, Changlong Guan

引用次数: 0

Spatio-Temporal Distributions of the Natural Non-Sea-Salt Aerosol Over the Southern Ocean and Coastal Antarctica and Its Potential Source Regions 南大洋和南极沿海天然非海盐气溶胶的时空分布及其潜在源区

Tellus B Pub Date : 2023-01-01 DOI: 10.16993/tellusb.1869

Jost Heintzenberg, Michel Legrand, Yuan Gao, Keiichiro Hara, Shan Huang, Ruhi S. Humphries, Adarsh K. Kamra, Melita D. Keywood, Sergey M. Sakerin

{"title":"Spatio-Temporal Distributions of the Natural Non-Sea-Salt Aerosol Over the Southern Ocean and Coastal Antarctica and Its Potential Source Regions","authors":"Jost Heintzenberg, Michel Legrand, Yuan Gao, Keiichiro Hara, Shan Huang, Ruhi S. Humphries, Adarsh K. Kamra, Melita D. Keywood, Sergey M. Sakerin","doi":"10.16993/tellusb.1869","DOIUrl":"https://doi.org/10.16993/tellusb.1869","url":null,"abstract":"More than 40 years of aerosol data including concentrations of particle number and of nine major ions collected over the Southern Ocean and coastal stations have been aggregated and filtered with back trajectories to reduce the risk of influence from adjacent continents. That provided a rich dataset including latitudinal distribution and seasonality of physical and chemical aerosol parameters that allow insights into aerosol sources over the Southern Ocean. These data together with statistics of back trajectory paths of high (75% percentile) and low (25% percentile) concentrations of the studied aerosol parameters were used to identify potential source regions of the respective compounds. For particle number concentrations, MSA, and the non-sea-salt fractions of Ca and potassium the most prominent source regions were found in high DMS-areas close to Antarctica, whereas the potential source regions of NH4 and the non-sea-salt fraction of Mg were located in part further north over the Southern Ocean. These geographical differences would reflect differences in the marine biota.","PeriodicalId":22191,"journal":{"name":"Tellus B","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135650385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Short Sampling Periods: A New Setup to Evaluate the Change in the Chemical Composition of Fog at High Time Resolution 短采样周期:一种在高时间分辨率下评估雾化学成分变化的新方法

Tellus B Pub Date : 2023-01-01 DOI: 10.16993/tellusb.35

Bettina Breuer, Neng-Huei (George) Lin, Weiti Tseng, Yen-Jen Lai, Otto Klemm

{"title":"Short Sampling Periods: A New Setup to Evaluate the Change in the Chemical Composition of Fog at High Time Resolution","authors":"Bettina Breuer, Neng-Huei (George) Lin, Weiti Tseng, Yen-Jen Lai, Otto Klemm","doi":"10.16993/tellusb.35","DOIUrl":"https://doi.org/10.16993/tellusb.35","url":null,"abstract":"This study used a water volume-based sampling method in combination with an active fog collector (modified Caltech design) to collect fog water samples during three intensive operation periods at two mountainous study sites in Taiwan. The new setup employed a sample-volume controlled system that dosed the fog water into 10 ml aliquots, which were then collected with a commercial laboratory auto-sampler. We collected fog water samples about 10 times more frequently (median sampling period 3 minutes and 45 seconds) than with traditional sampling schemes. Notably, up to over 200 samples were collected within a single fog event lasting 13 hours. The results showed that the intra-event variabilities of pH (up to over 2 units), conductivity (range almost 1000 μS cm–1), and ion concentrations were generally higher than the inter-event variability. The variabilities exhibited particularly fast changes during phases of fog onset and dissolution; in contrast, the centers of the passing clouds at our mountain research sites were rather homogeneous. Overall, our new method showed a marked improvement in sampling speed over traditional methods.","PeriodicalId":22191,"journal":{"name":"Tellus B","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135650366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0