Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Hojong Seo"'
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 2, Pp n/a-n/a (2024)
Abstract Actinium‐227 (227Ac) has been used as a powerful tracer of diapycnal mixing in the ocean, assuming that it is conservative and originates mainly from deep‐sea sediments. However, here we show an unexpectedly large source (continental mar
Externí odkaz:
https://doaj.org/article/b036af60ae9147688dc17d6cb225b5df
Autor:
Junhyeong Seo, Guebuem Kim, Jae-Hyoung Park, Hojong Seo, Taehee Na, Sok Kuh Kang, Jeomshik Hwang
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
We examined particulate organic carbon (POC) export using 238U–234Th disequilibrium in the tropical northwest Pacific Ocean, where numerous eddies are present. We obtained data from an anticyclonic eddy in 2019 and from both anticyclonic and cyclon
Externí odkaz:
https://doaj.org/article/bd5f11e2e13348dfaff11ec00d3e1246
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
In order to determine the atmospheric input of 210Pb and seawater-dissolvable Pb in the East Sea (Japan Sea), we measured the concentrations of total 210Pb and dissolved Pb (
Externí odkaz:
https://doaj.org/article/b6125f4c65a34097a1eeef8180a9f851
Contrasting Behaviors of 210Pb and 210Po in the Productive Shelf Water Versus the Oligotrophic Water
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
We measured the total, truly dissolved (0.2 μm) of 210Pb and 210Po in the East China Sea (ECS) shelf water and the East Sea (Japan Sea). In order to examine the behaviors of 210Pb and 210Po in different marine environments, we compiled our results w
Externí odkaz:
https://doaj.org/article/d611a013c48b451a995620f135fc01b7
Autor:
Hunsub Sim, Ijin Lim, Jumi Kim, Jiwoo Kim, Jong-Sik Ryu, Jun-Ho Lee, Hyung-Mi Cho, Heejun Han, Hojong Seo, Taejin Kim
Publikováno v:
Ocean Science Journal. 58
Publikováno v:
Geochimica et Cosmochimica Acta. 308:373-383
The transport of terrestrial sources of trace elements to the ocean has proven to be crucial in constraining not only their own biogeochemical behaviors but also regulating global carbon cycling and ecosystem changes. Most terrestrial dissolved trace
Publikováno v:
Ocean Science Journal. 56:378-384
Thorium-234 (234Th; t1/2 = 24.1 days) has been widely used as a tracer of particle settling and organic carbon export in the ocean. However, the use of 234Th in the ocean has been hampered by labor-intensive procedures, low throughputs, and large unc
Autor:
Hojong Seo, Guebuem Kim
Publikováno v:
Geochimica et Cosmochimica Acta. 286:19-28
The distributions of rare earth elements (REEs) were measured at 14 stations from 0 to 3365 m (n = 176) in the entire East Sea for the first time. The East Sea has its own deep-convection system, which operates on a time scale that is approximately o
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 2709-2718 (2020)
Atmospheric brown carbon (BrC) plays significant roles in the light absorption and photochemistry of the atmosphere. Although the sources and occurrences of BrC have been studied extensively, its removal processes and optical characteristics in the a
Contrasting Behaviors of 210Pb and 210Po in the Productive Shelf Water Versus the Oligotrophic Water
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
We measured the total, truly dissolved (0.2 μm) of 210Pb and 210Po in the East China Sea (ECS) shelf water and the East Sea (Japan Sea). In order to examine the behaviors of 210Pb and 210Po in different marine environments, we compiled our results w