• Sijohaknonchong
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• v.23
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• pp.133-159
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• 2005

This thesis is about Sijo(traditional Korean poem) made-up of 35 volumes and 45 poems written by Han Yong-un. The aim of this study is reappraise the Sijo which is not known to Korean people. There are four thesis about Sijo so far. Ko Myeong-su divided Sijo into separate subjects and researched it very deeply. After I read the Chinese Poems of Han Yong-un, I researched the relationships between subject matter and its theme. The relationships are between the moon and religion, spring and aspiration, autumn and grief or lose, and the sword and patriotism. I chose to discuss a Sijo 'Mugunghwa Shimeukwajeo'(무궁화(無窮花)를 심으과저) shich deals with the moon and religion. The main subject matter of this S is the moon. There are three poems in this volume. They are all about the moon. There is a Mugunghwa (無窮花) on the moon. This poem asserts that the moon is good for love, and it is the subject matter of the poet's religion. The moon in the Chinese poem 'Okjungkamwhiy'(獄中感懷) believes there is hope in prison. The moon in 'Wolbang(月方中) is Buddhist thinking. I researched 'Geochon'(早春) tee poems about spring and aspiration. The first poem is about the independent movement against the Japanese. Autumn is about the feeling of lose in the life. Sijo 'Chuyamong' (秋夜夢) is lose the lover. The second poem is about conquering all difficulties of the poet's current circumstance. The third poem is about the feeling of vacuum in his life. The fourth poem is about deploring losing his mind. 'Nam-a'(男兒) and 'Urinim'(우리님) are books about patriotism. These poems have the subject matter of a sword for song patriotism. 'Kiharksaeng'(寄學生), 'Anhaeju'(安海州), and 'Hwangmaecheon'(黃梅泉) are patriotic poems. In this study, I found that the subject matter and the theme in the Chinese poems of Han Yong-un(韓龍雲) are related. Mainly he used the metaphor of the moon for religion, spring for aspiration, autumn for grief or lose, and sword for patriotism.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.11 no.1
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• pp.21-30
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• 2006

This study investigated the temperature-salinity spatio-temporal variability around the Ulleung-do Island (UI) by using CTD profiles obtained by the ARGO floats far the period of Oct.,2003 to Aug.,2005. The waterbody in the upper 700 m around the UI could be classified into five water masses, which is consistent to traditional water characteristics in the East Sea. In the upper surface layer, the temperature and salinity in fall season became even lower than those properties in the summer time. The East Sea Intermediate Water (ESIW) characterized by the salinity minimum layer shows the range of potential temperature between 1 to $5^{\circ}C$ and salinity lower than 34.06 psu. The ESIW lies approximately at 265 m depth with average thickness of 175 m. This thickness of the ESIW continues to be relatively uniform regardless of spatio-temporal space. However, the depth of the ESIW shows vertical variation influenced by the Ulleung warm eddy (UWE). Since the UWE lies in the upper layer, the Upper Portion of the Japan Sea Proper. Water (UPJSPW) is also affected to show the vertical variation. The influence extorted by the UWE reached down to 700 m depth in terms of temperature. The CTD profiles obtained with the high sampling rate by ARCO floats over two-year period provided with very useful and detailed informations in investigating the spatio-temporal variability In the study area.

• Journal of the Korean Society of Marine Environment & Safety
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• v.25 no.6
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• pp.687-697
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• 2019

By monitoring sediment grain size and level variation of tidal flat surface for 6 years (2005-2011), and also by mooring TISDOS (tidal-flat sediment dynamics observation system) on the low intertidal flat in 2008, we investigated the sedimentary environment of tidal flat in the dammed Yeongsan River Estuary. The tidal flat of the Yeongsan River Estuary lost 82 % of its area because of coastal development projects, and a narrow tidal flat below mean sea level now remains. Most of the tidal flat sediments are composed of silt up to 70-94 %, and show the characteristics of clay deficiency and silt dominance. This is closely related with the coastal development, which led to the destruction of high tidal flats where most mud settled, and the modification of tidal current patterns. Moreover, the estuarine tidal-flat sediments reveal seasonal variation. They are coarse with abundant silt during windy autumn to spring, fine with abundant clay during the less-windy and high-discharge summer. This phenomenon indicates that the behavior of sediment particles on the low intertidal flats of the Yeongsan River Estuary is influenced by wind waves for silt and fresh water discharge and the tidal process for clay. Monitoring results of the altitude of tidal flat surface showed that the study area had eroded at an average rate of -2.6 cm/y during the period of 2005-2011, and also that an unusual deposition with a rate of 4 cm/y occurred in 2010. The erosion can be explained by an increased tidal amplitude and a strengthened ebb-dominant tidal asymmetry after the construction of an estuary dike and the Yeongam Kumho Seawall. The deposition in 2010 seems to have been closely related to the mass production of suspended materials from dredging of the estuary.