• Title/Summary/Keyword: 해풍

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Spatial distribution and Short-range transport of ozone in coastal urban environment (연안도시지역 오존의 수평분포와 단거리수송)

  • 김유근;이화운;오인보
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2001.11a
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    • pp.73-74
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    • 2001

  • 도시지역의 오존농도는 배출원 환경 및 지형과 국지 기상조건에 의해 크게 영향을 받게 된다. 일반적으로 도시내 공단과 교통량이 많은 지역에서는 다량의 NO 배출에 의한 오존의 감소가 일어나는 반면 도시플륨의 풍하측의 지역에서는 오존의 축적과 함께 고농가 발생하게 된다 (Wang et al., 2001; Bower et al., 1994; Mckendry). 특히 연안도시의 경우 여름철 주로 발생하는 국지순환인 해풍에 의한 고농도를 경험하게 되는데, 이는 수면의 낮은 오존침적으로 인해 소멸의 영향이 적고 (Entwistle, 1997), 해풍역전으로 인한 연직혼합의 제한으로 인해 발생한다고 볼 수 있다 (Lu and Turco, 1994). (중략)

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Study on the Extraction of Ocean Wind, Wave and Current using SAR (SAR를 이용한 해풍, 파랑, 해류 추출 기법 연구)

  • Kang, Moon-Kyung;Park, Yong-Wook;Lee, Moon-Jin;Lee, Hoon-Yol
    • Journal of Navigation and Port Research
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    • v.31 no.1 s.117
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    • pp.35-42
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    • 2007

  • Recently satellite SAR techniques have become essential observation tools for various ocean phenomena such as wind, wave, and current. The CMOD4 and CMOD-IFR2 models are used to calculate the magnitude of wind at SAR resolution with no directional information. Combination of the wave-SAR spectrum analysis and the inter-look cross-spectra techniques provides amplitude and direction of the ocean wave over a square-km sized imagette, The Doppler shift measurement of SAR image yields surface speed of the ocean current along the radar looking direction, again at imagette resolution. In this paper we report the development of a SAR Ocean processor(SOP) incorporating all of these techniques. We have applied the SOP to several RADARSAT-1 images of the coast of Korean peninsula and compared the results with oceanographic data, which showed reliability of spaceborne SAR-based oceanographic research.

  • https://doi.org/10.5394/KINPR.2007.31.1.035 인용 PDF KSCI

Quality Characteristics of Mackerel Immersed in Sea Wind Mugwort Extract (해풍쑥 추출물에 침지 처리한 고등어의 품질특성)

  • Oh, Sun-Kyung;Son, Hae-Reon;Kim, Ki-Woong;Bae, Sang-Ok;Kim, Sung-Young;Choi, Myeong-Rak
    • Journal of Life Science
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    • v.27 no.9
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    • pp.1011-1019
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    • 2017

  • This study examined the influence of sea wind mugwort extract treatment on quality characteristics of mackerel during storage. Mackerel were packaged individually and then immersed in 5% sea wind mugwort extract for 2, 3, or 4 hr and stored at $-20^{\circ}C$. The salinity of a control (no treatment) and that of mackerel immersed in sea wind mugwort for 2 hr was lowest (0.07%). pH of 5.90-6.23, and the change in acidity was in the opposite range. Immersion for 2, 3, and 4 hr led to a decrease in the tensile strength of the samples following storage, whereas the tensile strength of the control increased. The volatile basic nitrogen (VBN) content of the mackerel immersed for 2 hr was significantly lower than that of the control (5.6-15.4 mg% vs. 4.2-50.7 mg%). In the mackerel immersed for 2 hr, the total polyphenol and total flavonoid content was 286.3-497.0 mg gallic acid equivalents (GAE)/100 g and 177.5-385.6 mg quercetin equivalents (QE)/100 g, respectively. The 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2-azino-bis(3-ethyl-benzothizoline-6-sulfonic acid) (ABTS) radical scavenging activities of the mackerel immersed in sea wind mugwort for 2 hr were 50.6% and 61.3%, respectively. Overall, the immersion of mackerel in sea wind mugwort for a short time significantly improved quality characteristics, such as salinity, pH, acidity, hardness, antioxidant activity, and perceptible quality, following storage.

  • https://doi.org/10.5352/JLS.2017.27.9.1011 인용 PDF KSCI