Wet Deposition Fluxes of Ions Contributed by Cyclone-, Stationary Front- and Typhoon-associated Rains at the Southwestern Japan Coast
Tóm tắt
Wet deposition fluxes of ions at a coastal site in southwestern Japan in the period 1996–2003 were investigated to quantify the respective contributions of cyclone-, stationary front- and typhoon-associated rains. On average, the deposition fluxes of terrigenous-origin ions, nss-SO42−, NO3−, NH4+ and nss-Ca2+ were 37.6±7.3, 16.3±4.2, 19.0±3.4 and 9.6±4.8 meq m−2 yr−1, and those of Na+ and Cl−, the major ions in sea water, were 97.0±38.2 and 115.2±48.2 meq m−2 yr−1, respectively. Cyclone-associated rain constituted more than 50% of the fluxes of the terrigenous ions in almost all years. Stationary front-associated rain also contributed significantly, although the contribution was lower than the contribution by Cyclone-associated rain in almost all years. In particular, the wet deposition flux of nitrogen compounds of NO3− and NH4+, which are important nutrients for micro-bioactivities in sea surface water, was dominated by cyclone-associated rain. Due to the extreme abundance of Na+ and Cl− in the rainwater of typhoons, the fluxes of Na+ and Cl− were contributed substantially by typhoons in years with typhoons’ passage although cyclones were still the largest contributor to the fluxes. These results indicate the dominance of cyclones in the wet deposition to the East China Sea areas and the necessity to take rain types into account for a more accurate elucidation of the temporal and spatial variation of the wet deposition.
Tài liệu tham khảo
Baker, A.R., Lesworth, T., Adams, C., Jickells, T.D., Ganzeveld, L. (2010) Estimation of atmospheric nutrient inputs to the Atlantic Ocean from 50°N to 50°S based on large-scale field sampling: Fixed nitrogen and dry deposition of phosphorus. Global Biogeochemical Cycles 24, GB3006.
Barile, P.J., Lapointe, B.E. (2005) Atmospheric nitrogen deposition from a remote source enriches macroalgae in coral reef ecosystems near Green Turtle Cay, Abacos, Bahamas. Marine Pollution Bulletin 50, 1262–1272.
Barry, R., Chorley, R. (2003) Mid-latitude synoptic and mesoscale systems, In Atmosphere, Weather and Climate (Barry, R. and Chorley, R. Eds), Routledge, London, pp. 226–268.
Duce, R.A., Liss, P.S., Merrill, J.T., Atlas, E.L., Buat-Menard, P., Hicks, B.B., Miller, J.M., Prospero, J.M., Arimoto, R., Church, T.M., Ellis, W., Galloway, J.N., Hansen, L., Jickells, T.D., Knap, A.H., Reinhardt, K.H., Schneider, B., Soudine, A., Tokos, J.J., Tsunogai, S., Wollast, R., Zhou, M. (1991) The atmospheric input of trace species to the world ocean. Global Biogeochemical Cycles 5, 193–259.
EANET (2006) Periodic Report on the State of Acid Deposition in East Asia Part I: Regional Assessment.
Fowler, D., Smith, R., Muller, J., Cape, J.N., Sutton, M., Erisman, J.W., Fagerli, H. (2007) Long term trends in sulphur and nitrogen deposition in Europe and the cause of non-linearities. Water, Air, Soil Pollution Focus 7, 41–47.
Galloway, J.N., Townsend, A.R., Erisman, J.W., Bekunda, M., Cai, Z., Freney, J.R., Martinelli, L.A., Seitzinger, S.P., Sutton, M.A. (2008) Transformation of the nitrogen cycle: Recent trends, questions, and potential solutions. Science 320, 889–892.
Ho, C.H., Baik, J.J., Kim, J.H., Gong, D.Y., Sui, C.H. (2004) Interdecadal changes in summertime typhoon tracks. Journal of Climate 17, 1767–1776.
Jickells, T. (1995) Atmospheric inputs of metals and nutrients to the oceans: their magnitude and effects. Marine Chemistry 48, 199–214.
Jickells, T. (2006) The role of air-sea exchange in the marine nitrogen cycle. Biogeosciences 3, 271–280.
Kaneyasu, N., Takeuchi, K., Hayashi, M., Fujita, S., Uno, I., Sasaki, H. (2000) Outflow patterns of pollutants from East Asia to the North Pacific in the winter monsoon. Journal of Geophysical Research 105, 17361–17377.
Keene, W.C., Pszenny, A.A.P., Galloway, J.N., Hawley, M.E. (1986) Sea-salt corrections and interpretation of constituent ratios in marine precipitation. Journal of Geophysical Research 91, 6647–6658.
Kuribayashi, M., Ohara, T., Morino, Y., Uno, I., Kurokawa, J.I., Hara, H. (2012) Long-term trends of sulfur deposition in East Asia during 1981–2005. Atmospheric Environment 59, 461–475.
Lehmann, C.M.B., Bowersox, V.C., Larson, S.M. (2005) Spatial and temporal trends of precipitation chemistry in the United States, 1985–2002. Environmental Pollution 135, 347–361.
Morino, Y., Ohara, T., Kurokawa, J., Kuribayashi, M., Uno, I., Hara, H. (2011) Temporal variations of nitrogen wet deposition across Japan from 1989 to 2008. Journal of Geophysical Research 116, D06307.
Ogata, K., Yano, H., Ueno, K. (2004) Long-term monitoring of acid deposition in Kumamoto prefecture. Annual Report of Kumamoto Prefectural Institute of Public-Health and Environmental Science 34, 71–76. (in Japanese)
Paerl, H.W., Fogel, M.L. (1994) Isotopic characterization of atmospheric nitrogen inputs as sources of enhanced primary production in coastal Atlantic Ocean waters. Marine Biology 119, 635–645.
Pan, Y.P., Wang, Y.S., Tang, G.Q., Wu, D. (2012) Wet and dry deposition of atmospheric nitrogen at ten sites in Northern China. Atmospheric Chemistry and Physics 12, 6515–6535.
Sakihama, H., Tokuyama, A. (2005) Effect of typhoon on chemical composition of rainwater in Okinawa Island, Japan. Atmospheric Environment 39, 2879–2888.
Sakihama, H., Ishiki, M., Tokuyama, A. (2008) Chemical characteristics of precipitation in Okinawa Island, Japan. Atmospheric Environment 42, 2320–2335.
Sasakawa, M., Uematsu, M. (2002) Chemical composition of aerosol, sea fog, and rainwater in the marine boudary layer of the northwestern North Pacific and its marginal seas. Journal of Geophysical Research 107, 4783.
Seto, S., Hara, H., Sato, M., Noguchi, I., Tonooka, Y. (2004) Annual and seasonal trends of wet deposition in Japan. Atmospheric Environment 38, 3543–3556.
Seto, S., Sato, M., Tatano, T., Kusakari, T., Hara, H. (2007) Spatial distribution and source identification of wet deposition at remote EANET sites in Japan. Atmospheric Environment 41, 9386–9396.
Su, S.H., Kuo, H.C., Hsu, L.H., Yang, Y.T. (2012) Temporal and spatial characteristics of typhoon extreme rainfall in Taiwan. Journal of Meteorological Society of Japan 90, 721–736.
Toyonaga, S., Zhang, D. (2016) Chemical characteristics of rainwater associated with synoptic weather: eight-year record at a coastal site in southwestern Japan. Aerosol and Air Quality Research (in submision).
Uno, I., Uematsu, M., Hara, Y., He, Y.J., Ohara, T., Mori, A., Kamaya, T., Murano, K., Sadanaga, Y., Bandow, H. (2007) Numerical study of the atmospheric input of anthropogenic total nitrate to the marginal seas in the western North Pacific region. Geophysical Research Letters 34, L17817.
Vet, R., Artz, R.S., Carou, S., Shaw, M., Ro, C.U., Aas, W., Baker, A., Bowersox, V.C., Dentener, F., Galy-Lacaux, C., Hou, A., Pienaar, J.J., Gillett, R., Forti, M.C., Gromov, S., Hara, H., Khodzher, T., Mahowald, N.M., Nickovic, S., Rao, P.S.P., Reid, N.W. (2014) A global assessment of precipitation chemistry and deposition of sulfur, nitrogen, sea salt, base cations, organic acids, acidity and pH, and phosphorus. Atmospheric Environment 93, 3–100.
Zhang, D., Iwasaka, Y., Shi, G., Zang, J., Hu, M., Li, C. (2005) Separated status of the natural dust plume and polluted air masses in an Asian dust storm event at coastal areas of China. Journal of Geophysical Research 110, D06302.
Zhang, G., Zhang, J., Liu, S. (2007) Characterization of nutrients in the atmospheric wet and dry deposition observed at the two monitoring sites over Yellow Sea and East China Sea. Journal of Atmospheric Chemistry 57, 41–57.
Zhang, J., Zou, L., Wu, Y., Lin, Y.A. (2004) Atmospheric wet deposition and changes in phytoplankton biomass in the surface ocean. Geophysical Research Letters 31, L11310.
Zhang, J., Zhang, G.S., Bi, Y.F., Liu, S.M. (2011) Nitrogen species in rainwater and aerosols of the Yellow and East China seas: Effects of the East Asian monsoon and anthropogenic emissions and relevance for the NW Pacific Ocean. Global Biogeochemical Cycles 25, GB3020.
Zhou, Y., Gao, S., Shen, S.S.P. (2004) A diagnostic study of formation and structures of the Meiyu front system over East Asia. Journal of Meteorological Society of Japan 82, 1565–1576.