Measurement of atmospheric N2O concentrations above Seto Inland Sea and off Shikoku and Kyushu Islands
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Accession number;06A1016254
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| Title;Measurement of atmospheric N2O concentrations above Seto Inland Sea and off Shikoku and Kyushu Islands |
| Author;
ANDO KOJIRO
(Kobe Univ.)
HAYASHI MITSURU
(Kobe Univ.)
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Journal Title;Kaiyo Kogaku Shinpojiumu (CD-ROM)
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Journal Code:S0108B
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ISSN:
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VOL.19th;NO.;PAGE.ROMBUNNO.23(2006)
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| Figure&Table&Reference;FIG.6, TBL.2, REF.5 |
| Pub. Country;Japan |
| Language;English |
| Abstract;Nitrous Oxide (N2O) is a greenhouse gas. Atmospheric N2O concentrations were measured continuously in the Seto Inland Sea and off the southern and eastern coast of Shikoku and Kyushu Islands, respectively, from September 10 to 16, 2005. Average N2O concentrations over the study was 282 ppb, with average N2O concentrations in the inland sea, Osaka Bay, the Seto Inland Sea, Kagoshima Bay and Kagoshima port of 288 ppb. In the open sea, off the coastlines of the southern Shikoku and eastern Kyushu islands, the average N2O concentration was 256 ppb, implying that N2O concentrations were higher in the inland sea than they were in the open sea. At concentrations of 320 ppb, Osaka Bay had the highest N2O concentrations. While N2O concentrations were higher when the wind blew from urban areas, compared to when the wind blew onshore from the open sea, the mechanism underlying this horizontal distribution of N2O from urban areas to the littoral region is not clear. (author abst.) |
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