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Spatial and Temporal Variation of Dissolved Inorganic Radiocarbon in the East Sea
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  • Journal title : Ocean and Polar Research
  • Volume 36, Issue 2,  2014, pp.111-119
  • Publisher : Korea Institute of Ocean Science & Technology
  • DOI : 10.4217/OPR.2014.36.2.111
 Title & Authors
Spatial and Temporal Variation of Dissolved Inorganic Radiocarbon in the East Sea
Sim, Bo-Ram; Kang, Dong-Jin; Park, Young Gyu; Kim, Kyung-Ryul;
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This study examined the spatial and temporal variation of dissolved inorganic radiocarbon in the East Sea. Five vertical profiles of radiocarbon values were obtained from samples collected in 1999 in three basins (Japan Basin, Ulleung Basin, Yamato Basin) of the East Sea. Radiocarbon values decreased from 63- 85‰ at the surface to about -50‰ with increasing depth (up to 2,000 m) and were nearly constant in the layer deeper than 2,000 m in all basins. Radiocarbon values did not show significant basin-to-basin differences in the surface and the bottom layers. In the intermediate layer (200-2,000 m), however, they decreased in the order of Japan Basin > Ulleung Basin > Yamato Basin, which is consistent with the suggested circulation pattern in the intermediate layer of the East Sea. Radiocarbon was found to have decreased at ~2%/year in the surface water of the East Sea. In contrast, in the interior of the East Sea, radiocarbon values have increased with time in all three basins. In the Central Water, the annual increase rate was about 3.3‰, which is faster than the rates in the Deep and Bottom Waters. The radiocarbon in the Deep and Bottom Waters had increased until mid-1990s, after which time it has been almost constant.
radiocarbon;;basin-to-basin comparison;secular variation;East sea;
 Cited by
황점식 (2012) 방사성탄소를 이용한 해양 유기탄소 순환 연구 동향. 한국해양학회지 바다 17(3):189-201(Hwang JS (2012) Radiocarbon for studies of organic matter cycling in the Ocean. J Korean Soc Oceanogr 17(3): 189-201 (in Korean)) crossref(new window)

Amante C, Eakins BW (2009) ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis. NOAA Technical Memorandum NESDIS NGDC-24, 19 p

Aramaki T, Senjyu T, Togawa O, Otosaka S, Suzuki T, Kitamaru T, Amano H, Volkov YN (2007) Circulation in the Northern Japan sea studied chiefly with radiocarbon. Radiocarbon 49(2):915-924 crossref(new window)

Aramaki T, Tanaka SS, Kushibashi S, Kim YI, Kim CJ, Hong GH, Senjyu T (2013) Spatial distribution of radiocarbon in the southwestern Japan/East Sea immediately after bottom water renewal. Radiocarbon 55:1675-1682 crossref(new window)

Chen CTA, Wang SL, Bychkov AS (1995) Carbonate chemistry of the Sea of Japan. J Geophys Res 100:13737-13745 crossref(new window)

Chen CTA, Bychkov AS, Wang SL, Pavlova GY (1999) An anoxic Sea of Japan by the Year 2200? Mar Chem 67:249-265 crossref(new window)

Dickson A, Sabine C, Christina J (2007) Guide to best Practices for Ocean $CO_2$ Measurements. PICES special publication 3. Sidney, BC V8L 4B2 Canada, 191 p

Gamo T, Horibe Y (1983) Abyssal Circulation in the Japan Sea. J Oceanogr Soc Japan 39:220-230 crossref(new window)

Guilderson TP (2012) Gas-Hybrid Source 14C-AMS: Application to terrestrial ecosystem, biological, and environmental research. Lawrence Livermore National Laboratory LLNL-TR-568336, 34 p

Kang DJ, Kim JY, Lee TS, Kim KR (2004a) Will the East/ Japan Sea become an anoxic sea in the next century? Mar Chem 91:77-84 crossref(new window)

Kang DJ, Kim K, Kim KR (2004b) The past, present and future of the East/Japan sea in change: a simple movingboundary box model approach. Progr Oceanogr 61:175-191 crossref(new window)

Kang DJ, Park SY, Kim YG, Kim K, Kim KR (2003) A moving-boundary box model (MBBM) for oceans in change: An application to the East/Japan Sea. Geophys Res Lett 30(6):1299. doi:10.1029/2002GL016486 crossref(new window)

Key RM (2001) Ocean Process Tracers: Radiocarbon. In: Steele J, Thorpe S, Turekian K (eds) Encyclopedia of Ocean Sciences. London Academic Press, Ltd., 35 p

Kim K, Kim KR, Min DH, Volkov Y, Yoon JH, Takematsu M (2001) Warming and structural changes in the East (Japan) Sea: A clue to future changes in global oceans? Geophys Res Lett 28(17):3293-3296 crossref(new window)

Kim K, Kim KR, Chung JY, Choi BH, Byun SK, Hong GH, Takematsu M, Yoon JH, Volkov Y, Danchenkov M (1996) New findings from CREAMS observations: Water masses and eddies in the East Sea. J Korean Soc Oceanogr 31:155-163 (in Korean)

Kim KR, Kim GB, Kim K (2002) A sudden bottom-water formation during the severe winter 2000-2001: The case of the East/Japan Sea. Geophys Res Lett 29(8):1234. doi:10.1029/2001GL014498 crossref(new window)

Kim KR, Kim K (1996) What is happening in the East Sea (Japan Sea)?: Recent chemical observation during CREAMS 93-96. J Korean Soc Oceanogr 31:164-172 (in Korean)

Kim KR, Kim K, Kang DJ, Park SY, Park MK, Kim YG, Min HS, Min D (1999) The East Sea (Japan Sea) in change: A story of dissolved oxygen. Mar Tech Soc J 33:15-22

Kumamoto Y, Aramaki T, Watanabe S, Yoneda M, Shobata Y, Togawa O, Morita M, Shitashima K (2008) Temporal and spatial variations of radiocarbon on Japan Sea bottom water. J Oceanogr 64:429-441 crossref(new window)

Kumamoto Y, Yoneda M, Shibata Y, Kume H, Tanaka A, Uehiro T, Morita M, Shitashima K (1998) Direct observation of the rapid turnover of the Japan Sea bottom water by means of AMS radiocarbon measurement. Geophys Res Lett 25(5):651-654 crossref(new window)

Levin I, Hesshaimer V (2000) Radiocarbon-A unique tracer of global carbon cycle dynamics. Radiocarbon 42(1):69-80 crossref(new window)

McNichol AP, Jones GA (1992) Measuring $^{14}C$ in seawater $\Sigma$ $CO_2$ by Accelerator Mass Spectrometry. WHP Operations and Methods, 15 p

Senjyu T, Aramaki T, Otosaka S, Togawa O, Danchenkov M, Karasev E (2002) Renewal of the bottom water after the winter 2000-2001 may spin-up the thermohaline circulation in the Japan Sea. Geophys Res Lett 29(7): 1149. doi:10.1029/2001GL014093 crossref(new window)

Senjyu T, Shin HR, Yoon JH, Nagano Z, An HS, Byun SK, Lee CK (2005) Deep flow field in the Japan/East Sea as deduced from direct current measurements. Deep-Sea Res Pt II 52(11-13):1726-1741 crossref(new window)

Stuiver M, Polach HA (1977) Discussion reporting of $^{14}C$ data. Radiocarbon 19(3):355-363 crossref(new window)

Tsunogai S, Kawada K, Watanabe S, Aramaki T (2003) CFCs indicating renewal of the Japan Sea Deep Water in winter 2000-2001. J Oceanogr 59:685-693 crossref(new window)

Watanabe S, Nakajima M, Tsunogai S (1989) Carbon dioxide exchange rate in the rate in the Japan Sea estimated from radiocarbon. Annual Meeting of Geochem Soc Japan, Tokyo, 3-5 Oct. 1989 (in Japanese)