Characteristics and seasonal variability of atmospheric deposition in Uljin, adjacent to the southwestern East Sea

Title
Characteristics and seasonal variability of atmospheric deposition in Uljin, adjacent to the southwestern East Sea
Author(s)
박근하; 이선은; 김태욱; 김영일
KIOST Author(s)
KIM, YOUNG-IL(김영일)
Publication Year
2016-12-14
Abstract
Characteristics and amounts of materials supplied by atmospheric deposition to the surface ocean are important on marine ecosystems. We analyzed acidity of the wet deposition as well as concentrations and fluxes of water-soluble ions (WSIs) in the wet and dry deposition, in order to estimate seasonal variability of WSIs and correlations between the acidity and the WSIs. Rainwater and total suspended particles (TSP) were collected weekly or half-weekly on the rooftop of building of the East Sea Research Institute, Uljin, Republic of Korea, the coastal area of the East Sea, from October 2013 for wet deposition samples and March 2014 for the dry deposition samples to April 2016. The WSIs flux ranges of the wet deposition were 0.04-12.79 mmol∙ m-2∙ month-1 for dissolved inorganic nitrogen (DIN) as NO3- and NH4+, of which NO3- fluxes accounted for about 56%, 0.01-4.05 for non-sea-salt sulfate (nss-SO42-), and 0.00-1.31 for non-sea-salt calcium (nss-Ca2+). The average concentrations of the dry deposition were 1.93 ± 2.16 μg∙ m-3 for DIN as NO3--N and NH4+-N, of which NH4+-N accounted for about 56%, 5.04 ± 3.42 for nss-SO42-, and 0.78 ± 0.57 for nss-Ca2+. The seasonal fluxes of WSIs in the wet deposition were highest in summer and lowest in winter except for nss-Ca2+, which showed correlations with the amount of precipitation, while the concentrations of WSIs in the dry deposition were highest in spring a in the wet and dry deposition, in order to estimate seasonal variability of WSIs and correlations between the acidity and the WSIs. Rainwater and total suspended particles (TSP) were collected weekly or half-weekly on the rooftop of building of the East Sea Research Institute, Uljin, Republic of Korea, the coastal area of the East Sea, from October 2013 for wet deposition samples and March 2014 for the dry deposition samples to April 2016. The WSIs flux ranges of the wet deposition were 0.04-12.79 mmol∙ m-2∙ month-1 for dissolved inorganic nitrogen (DIN) as NO3- and NH4+, of which NO3- fluxes accounted for about 56%, 0.01-4.05 for non-sea-salt sulfate (nss-SO42-), and 0.00-1.31 for non-sea-salt calcium (nss-Ca2+). The average concentrations of the dry deposition were 1.93 ± 2.16 μg∙ m-3 for DIN as NO3--N and NH4+-N, of which NH4+-N accounted for about 56%, 5.04 ± 3.42 for nss-SO42-, and 0.78 ± 0.57 for nss-Ca2+. The seasonal fluxes of WSIs in the wet deposition were highest in summer and lowest in winter except for nss-Ca2+, which showed correlations with the amount of precipitation, while the concentrations of WSIs in the dry deposition were highest in spring a
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/24252
Bibliographic Citation
2016 AGU Fall Meeting, 2016
Publisher
American Geophysical Union
Type
Conference
Language
English
Publisher
American Geophysical Union
Related Researcher
Research Interests

Distribution and Behavior of Radionuclides in the Ocean,Total Massflux of Singking Particle in East Sea,Material Transport Process in the Ocean

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