Acknowledgement
본 연구는 인터넷상에 공개된 미항공우주국의 SMAP위성과 기상청 국립기상과학원의 ARGO 플로트 관측 자료를 바탕으로 개인적으로 수행되었다.
References
- R. J. Urick, Principle of Underwater Sound, 3rd ed. (McGraw-hill, New York, 1983), Chapter 5.
- Discovery of Sound in the Sea, https://dosits.org/tutorials/science/tutorial-speed/, (Last viewed September 14, 2022).
- S. Lim, "Ana lysis of differences between the sonic layer depth and the mixed layer depth in the East Sea" (in Korean), JKICE, 19, 1259-1268 (2015). https://doi.org/10.6109/jkiice.2015.19.5.1259
- Y. Ha, "Analysis of false alarm possibility using simulation of back-scattering signals from water masses" (in Korean), J. Acoust. Soc. Kr. 40, 99-108 (2021).
- N. Kim, J. Lee, G. Cho, and S. Kim, "Korean climate change assessment report 2020" Ministry of Environment, Seoul, 2020.
- L. Ran, X.X. Lu, and S. Liu, " Dynamics of riverine CO2 in the Yangtze River fluvialnetwork and their implications for carbon evasion," Biogeosciences, 14, 2183-2198 (2017). https://doi.org/10.5194/bg-14-2183-2017
- R. C. Beardsley, R. Limeburner, H. Yu, and G. A. Cannon, "Discharge of the Changjiang (Yangtze river) into the East China sea," Cont. Shelf Res. 4, 57-76 (1985). https://doi.org/10.1016/0278-4343(85)90022-6
- H. J. Lie, C. H. Cho, J. H. Lee, and S. Lee, "Structure and eastward extension of the Changjiang River plume in the East China Sea," JGR Oceans. 108, 3077 (2003).
- J. H. Moon, I. C. Pang, and J. H. Yoon, "Response of the Changjiang diluted water around Jeju Island to external forcings: A modeling study of 2002 and 2006," Cont. Shelf Res. 29, 1549-1564 (2009). https://doi.org/10.1016/j.csr.2009.04.007
- H. Kim, J. Kim, and D. Paeng, "Analysis of surface sound channel by low salinity water and its midfrequency acoustic characteristics in the East China Sea and the Gulf of Guinea" (in Korean), J. Acoust. Soc. Kr. 34, 1-11 (2015). https://doi.org/10.7776/ASK.2015.34.1.001
- J. Kim, T. Bok., D. Paeng, I. Pang, and C. Lee, "Acoustic channel formation and sound speed variation by low-salinity water in the western sea of Jeju during summer" (in Korean), J. Acoust. Soc. Kr. 32, 1-13 (2013). https://doi.org/10.7776/ASK.2013.32.1.001
- A. Fore, S. Yueh, W. Tang, and A. Hayashi, "SMAP Salinity and Wind Speed Data User's Guide," JPL., 2020.
- Physical Oceaonography Distributed Active Archive Center, https://podaac.jpl.nasa.gov/dataset/SMAP_JPL_L3_SSS_CAP_MONTHLY_V5, (Last September 14, 2022).
- Soil Moisture Active Passive, https://smap.jpl.nasa.gov/, (Last viewed September 14, 2022).
- H. Lee, Y. S. Chang, T. H. Kim, J. H. Kim, Y. H. Youn, J. W. Seo, and T. G. Seo, "Global ocean observation with ARGO floats: Introduction to ARGO program" (in Korean), Atmos. 14, 4-23 (2004).
- K. H. Oh, Assessment of profiles and intermediate to deep level circulation of the southern part of the East Sea from Argo floats (Ph.D. thesis, Jeju National University, 2005).
- ARGO NIMS, http://argo.nims.go.kr/argo3/, (Last viewed September 14, 2022).
- B. J. Kil, "Improvement of the accuracy of XBT based underwater sound speed using the unmanned maritime system and satellite remote sensing data in the Yellow Sea" (in Korean), J. Acoust. Soc. Kr. 38, 621-629 (2019).
- B. J. Kil, "A result of prolonged monitoring under water sound speed in the center of the Yellow Sea" (in Korean), J. Acoust. Soc. Kr. 40, 183-191 (2021).
- M. B. Porter, "The BELLHOP manual and user's guide: preliminary draft," Heat, Light, and Sound Research, Inc., 2011.
- R. Acharya, "Sono bouys," Indian J. Geo-Mar. Sci. 47, 1723-1726 (2018).
- H. Medwin, "Speed of sound in water:a simple equation for realistic parameters," J. Acoust. Soc. Am. 58, 1318-1319 (1975). https://doi.org/10.1121/1.380790
- Ocean Data View, http://odv.awi.de, (Last viewed September 14, 2022).
- J. Hao, Y. Chen, F. Wang, and P. Lin, "Seasonal thermocline in the China Seas and northwestern Pacific Ocean," JGR Oceans. 117, C02022 (2012).
- J. Kim, H. Kim, D.-G. Paeng, T.-H. Bok, and J. Lee, "Low-salinity-induced surface sound channel in the western sea of Jeju Island during summer," J. Acoust. Soc. Am. 137, 1576-1585 (2015). https://doi.org/10.1121/1.4913812
- R. K. Chow and D. G. Browning, "A study of secondary sound channels due to temperature inversions in the Northeast Pacific Ocean," J. Acoust. Soc. Am. 72, S57 (1982).
- C. Alberola, C. Millot, U. Send, C. Mertens, and J. L. Fuda, "Comparison of XCTD/CTD data," Deep-Sea Res. I : Oceanogr. Res. Pap. 43, 859-876 (1996). https://doi.org/10.1016/0967-0637(96)00031-3
- D.-S. Tollefsen, "Recommendations for calculating sound speed profiles from field data," Defence R&D Canada-Atlantic., Tech. Memorandum Rep., 2013.
- A. J. Lucas, R. Pinkel, and M. Alford, "Ocean wave energy for long endurance, broad bandwidth ocean monitoring," Oceanogr. 30, 126-127 (2017).