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한국환경과학회> 한국환경과학회지> 한반도내 미세먼지 발생주기의 시공간분포 특성

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한반도내 미세먼지 발생주기의 시공간분포 특성

Spatial and Temporal Features of PM10 Evolution Cycle in the Korean Peninsula

장재훈 ( Jae Hoon Jang ) , 이화운 ( Hwa Woon Lee ) , 이순환 ( Soon Hwan Lee )
  • : 한국환경과학회
  • : 한국환경과학회지 21권2호
  • : 연속간행물
  • : 2012년 02월
  • : 189-202(14pages)
피인용수 : 21건

(자료제공: 네이버학술정보)

DOI


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Power spectral analysis for PM10 observed at 10 cities in the Korean Peninsula from 2004 to 2010 was carried out to examine the spatial and temporal features of PM10 evolution cycle. The power spectrum analysis proposed 9 typical cycles 0.5 day, 1day, 5.4day, 8~10day, 19~21day, 26day, 56day, 180day and 365day) for PM10 evolution and the cycles are strongly associated with dilution and transportation due to the meterological influence. The spectrum intensity of 5.4day and 26day PM10 evolution cycles mainly depend on the advection cycles of synoptic pressures system and long-term variation of climatological forcing, respectively. The intensity of PM10 evolution with longer temporal cycles than one day tends to be stronger in La nina period in comparison with that in El nino period. Mean of typical intensity of PM10 evolution in La nina period estimated to be 30% larger than El nino period. Thus the global scale meteorological phenomena such as El nino and La nina also can influence the variation of wind system in the Korean Peninsula and PM10 evolution. but global scale forcing tends to influence different manner for PM10 evolution in accordance with its temporal cycles.

ECN


UCI

I410-ECN-0102-2012-530-003257176

간행물정보

  • : 자연과학분야  > 기타(자연과학)
  • : KCI 등재
  • : -
  • : 월간
  • : 1225-4517
  • : 2287-3503
  • : 학술지
  • : 연속간행물
  • : 1992-2018
  • : 3215


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1Climatological Trend of Sea Water Temperature around the Antarctic Peninsula Waters in the Southern Ocean

저자 : Chung Il Lee , Sang Woo Kim , Dong Sun Kim , Moon Geun Yoon

발행기관 : 한국환경과학회 간행물 : 한국환경과학회지 21권 2호 발행 연도 : 2012 페이지 : pp. 125-133 (9 pages)

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2Analysis of Vegetation Structure of Castanopsis sieboldii Forest in the Warm-temperate Zone, Korea

저자 : Sung Je Lee , Keiichi Ohno , Jong Suk Song

발행기관 : 한국환경과학회 간행물 : 한국환경과학회지 21권 2호 발행 연도 : 2012 페이지 : pp. 135-144 (10 pages)

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This study aims at classifying and analyzing the vegetation structure of Castanopsis sieboldii forest, one of the evergreen broad-leaved forests found under the warm-temperate climate of Korea. It is also compared with the ones of the Castanopsis sieboldii forest in Japan where most similar such forest of Korea, to find unique vegetation structures of the only Korean forest. Vegetation structure of Korean Castanopsis sieboldii forest was divided into two units at the level of community units both of Ardisia japonica-Castanopsis sieboldii community and Ardisio-Castanopsietum sieboldii association. The association carries similar type with the vegetation system of Japan, but any subunits differentiated with the Japan were found vary much. Hierarchical cluster analysis brings in similar result with the analysis on the vegetation structure as well.

3준복잡지형 대기경계층 저층 풍속분포 특성분석 -포항가속기 라이다 원격탐사 캠페인을 중심으로

저자 : 김현구 ( Hyun Goo Kim )

발행기관 : 한국환경과학회 간행물 : 한국환경과학회지 21권 2호 발행 연도 : 2012 페이지 : pp. 145-152 (8 pages)

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The mean wind speed and turbulence intensity profiles in the atmospheric boundary layer were extracted from a LIDAR remote sensing campaign in order to apply for CFD validation. After considering the semi-steady state field data requirements to be used for CFD validation, a neutral atmosphere campaign period, in which the main wind direction and the power-law exponent of the wind profile were constantly maintained, was chosen. The campaign site at the Pohang Accelerator Laboratory, surrounded by 40~50m high hills, with an apartment district spread beyond the hills, is to be classified as a semi-complex terrain. Nevertheless, wind speed profiles measured up to 100m above the ground fitted well into a theoretical-experimental logarithmic-law equation. The LIDAR remote-sensing data of the sub-layer of the atmospheric boundary layer has been proven to be superior to the data obtained by conventional extrapolation of the wind profile with 2 or 3 anemometer measurements.

4연안 대도시 해풍 풍하측 계곡지역의 지표오존 분포 특성: 계절변화와 바람과의 관계

저자 : 강재은 ( Jae Eun Kang ) , 오인보 ( In Bo Oh ) , 송상근 ( Sang Keun Song ) , 김유근 ( Yoo Keun Kim )

발행기관 : 한국환경과학회 간행물 : 한국환경과학회지 21권 2호 발행 연도 : 2012 페이지 : pp. 153-163 (11 pages)

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The seasonal variations of ozone (O3) concentrations were investigated with regard to the relationship between O3 and wind distributions at two different sites (Jung Ang (JA): a semi-closed topography and Seo Chang (SC): a closed topography) within a valley city (Yangsan) and their comparison between these sites (JA and SC) and two non-valley sites (Dae Jeo (DJ) and Sang Nam (SN)) located downwind from coastal cities (Busan and Ulsan). This analysis was performed using the data sets of hourly O3 concentrations, meteorological factors (especially, wind speed and direction), and those on high O3 days exceeding the 8-h standard (60 ppb) during 2008-2009. In summer and fall (especially in June and October), the monthly mean values of the daily maximum O3 concentrations and the number of high O3 days at JA (and SC) were relatively higher than those at DJ (and SN). The increase in daytime O3 concentrations at JA in June was likely to be primarily impacted by the transport of O3 and its precursors from the coastal emission sources in Busan along the dominant southwesterly winds (about 5 m/s) under the penetration of sea breeze condition, compared to other months and sites. Such a phenomenon at SC in October was likely to be mainly caused by the accumulation of O3 and its precursors due to the relatively weak winds under the localized stagnant weather condition rather than the contribution of regional transport from the emission sources in Busan and Ulsan.

5비메탄계 휘발성유기화합물에 의한 간접 온실효과의 산출

저자 : 최은화 ( Eun Hwa Choi )

발행기관 : 한국환경과학회 간행물 : 한국환경과학회지 21권 2호 발행 연도 : 2012 페이지 : pp. 165-179 (15 pages)

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Indirect CO2 effect due to non-methane volatile organic compound (NMVOC) emissions from solvent and product use and fugitive NMVOC emissions from fuels in the Republic of Korea and 13 Annex I countries under United Nations Framework on Climate Change were estimated and the proportions of them to total greenhouse gas (GHG) emissions ranged from 0.092% to 0.45% in 2006. Indirect greenhouse effect (CO2, CH4, and O3) were estimated at 13 photochemical assessment monitoring sites in the Republic of Korea using concentrations of 8 NMVOCs of which indirect global warming potential (GWP) were available. The contribution of toluene to mixing ratio was highest at 11 sites and however, the contribution of toluene to indirect greenhouse effect was highest at nine sites. In contrast to toluene, the contributions of ethane, butane, and ethylene were enhanced. The indirect greenhouse effects of ethane and propane, of which ozone formation potentials are the lowest and the third lowest respectively among targeted 10 NMVOCs, ranked first and fourth highest respectively. Acetaldehyde has relatively higher maximum incremental reactivity and is classified as probable human carcinogen however, its indirect GWP ranked second lowest.

6서해안 염생식물 퉁퉁마디의 발아지속과 복원

저자 : 김기훈 ( Ki Hoon Kim ) , 강내규 ( Nae Kyu Kang ) , 송우람 ( Uh Ram Song ) , 이은주 ( Eun Ju Lee )

발행기관 : 한국환경과학회 간행물 : 한국환경과학회지 21권 2호 발행 연도 : 2012 페이지 : pp. 181-188 (8 pages)

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Salicornia europaea (glasswort) is succulent, annual, halophytic plant mainly distributed throughout reclaimed land or salt marsh. It has strong tolerance to salt so that it plays the part of the pioneer species in the first succession. According to domestic and foreign studies, S. europaea contains plenty of minerals and antioxidant in the body. Since people take note of an availableness of this plant as health diet, the natural growth sites are threatened. In addition to development of salt marsh and sea shore, imprudent harvest has a bad effect to S. europaea population maintenance. To seek ways to preserve the population of this plant, we carried out the continuity of seed germination and restoration test. Seokmo Island, Daebu Island, Youngjong Island and Sudokwon landfill in Korea are selected sites for research. Result of germination continuity shows that most S. europaea seeds germinate on March but no more after July. However the germination was occurred after that time in the greenhouse. So we concluded that no germination after July is a matter of environmental condition not the number of remaining seeds. Also germination was seldom occurred in the spot where seeds production was not happened. In result of continuity test of seed germination by soil depth, germination was occurred vigorously only in top soil. From these results, we note that most S. europaea germinate in the early spring, and germination is finished by July. And this rapid germination speed makes the number of seeds in soil seed bank rare. If a large number of S. europaea in some area are harvested after July, the number of this species will dramatically decrease in that area the following year. In Seokmo Island, we carried out reintroduction experiment by sowing S. europaea seeds. On the first year, a small number of S. europaea settled and they produced seeds successfully. On April 2010, the second year, we observed many S. europaea in seed sowing sites. And we found out that plowing is more efficient than treatment sea water for settlement of S. europaea.

7한반도내 미세먼지 발생주기의 시공간분포 특성

저자 : 장재훈 ( Jae Hoon Jang ) , 이화운 ( Hwa Woon Lee ) , 이순환 ( Soon Hwan Lee )

발행기관 : 한국환경과학회 간행물 : 한국환경과학회지 21권 2호 발행 연도 : 2012 페이지 : pp. 189-202 (14 pages)

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Power spectral analysis for PM10 observed at 10 cities in the Korean Peninsula from 2004 to 2010 was carried out to examine the spatial and temporal features of PM10 evolution cycle. The power spectrum analysis proposed 9 typical cycles 0.5 day, 1day, 5.4day, 8~10day, 19~21day, 26day, 56day, 180day and 365day) for PM10 evolution and the cycles are strongly associated with dilution and transportation due to the meterological influence. The spectrum intensity of 5.4day and 26day PM10 evolution cycles mainly depend on the advection cycles of synoptic pressures system and long-term variation of climatological forcing, respectively. The intensity of PM10 evolution with longer temporal cycles than one day tends to be stronger in La nina period in comparison with that in El nino period. Mean of typical intensity of PM10 evolution in La nina period estimated to be 30% larger than El nino period. Thus the global scale meteorological phenomena such as El nino and La nina also can influence the variation of wind system in the Korean Peninsula and PM10 evolution. but global scale forcing tends to influence different manner for PM10 evolution in accordance with its temporal cycles.

8부산지역 빌딩 분포 상세화에 따른 중규모 순환 특성

저자 : 손정옥 ( Jeong Ock Son ) , 이화운 ( Hwa Woon Lee ) , 이순환 ( Soon Hwan Lee )

발행기관 : 한국환경과학회 간행물 : 한국환경과학회지 21권 2호 발행 연도 : 2012 페이지 : pp. 203-215 (13 pages)

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In order to clarify the impacts of thermal difference in atmospheric boundary layer due to the different sophistication of building information in Busan metropolitan areas, several numerical simulations were carried out. ACM (Albedo Calculation Model) and WRF (Weather Research and Forecasting) was applied for estimating albedo and meteorological elements in urban area, respectively. In comparison with coarse aggregated and small buildings, diurnal variation of albedo is highly frequent and its total value tend to be smaller in densely aggregated and tall buildings. Estimated TKE and sensible heat flux with sophisticatedly urban building parameterization is more resonable and valid values are mainly induced by urban building sophistication. The simulation results suggest that decreased albedo and increased roughness due to skyscraper plays an important role in the result of thermal change in atmospheric boundary layer.

9고비사막으로부터 황사수송이 가을에 강릉시의 시간별 PM10, PM2.5, PM1 간의 농도차비와 상관관계에 미치는 영향

저자 : 이미숙 ( Mi Sook Lee ) , 정진도 ( Jin Do Chung )

발행기관 : 한국환경과학회 간행물 : 한국환경과학회지 21권 2호 발행 연도 : 2012 페이지 : pp. 217-231 (15 pages)

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Hourly concentrations of PM1, PM2.5 and PM10, were investigated at Gangneung city in the Korean east coast on 0000LST October 26~1800LST October 29, 2003. Before the intrusion of Yellow dust from Gobi Desert, PM10(PM2.5, PM1) concentration was generally low, more or less than 20 (10, 5) g/m3, and higher PM concentration was found at 0900LST at the beginning time of office hour and their maximum ones at 1700LST around its ending time. As correlation coefficient of PM10 and PM2.5(PM2.5 and PM1, and PM10 and PM1) was very high with 0.90(0.99, 0.84), and fractional ratios of PM10-PM2.5)/PM2.5((PM2.5-PM1)/PM1) were 1.37~3.39(0.23~0.54), respectively. It implied that local PM10 concentration could be greatly affected by particulate matters of sizes larger than 2.5m, and PM2.5 concentration could be by particulate matters of sizes smaller than 2.5 m. During the dust intrusion, maximum concentration of PM10(PM2.5, PM1) reached 154.57(93.19, 76.05) g/m3 with 3.8(3.4, 14.1) times higher concentration than before the dust intrusion. As correlation coefficient of PM10 and PM2.5(vice verse, PM2.5, PM1) was almost perfect high with 0.98(1.00, 0.97) and fractional ratios of PM10-PM2.5)/PM2.5((PM2.5-PM1)/PM1) were 0.48~1.25(0.16~0.37), local PM10 concentration could be major affected by particulates smaller than both 2.5 m and 1 m (fine particulate), opposite to ones before the dust intrusion. After the ending of dust intrusion, as its coefficient of 0.23(0.81, - 0.36) was very low, except the case of PM2.5 and PM1 and PM10-PM2.5)/PM2.5((PM2.5-PM1)/PM1) were 1.13~1.91(0.29~1.90), concentrations of coarse particulates larger than 2.5 m greatly contributed to PM10 concentration, again. For a whole period, as the correlation coefficients of PM10, PM2.5, PM1 were very high with 0.94, 1.00 and 0.92, reliable regression equations among PM concentrations were suggested.

10고등어육 단백질 가열겔 물성에 대한 알카리 전해수세수 효과

저자 : 이남걸 ( Nahm Gull Lee )

발행기관 : 한국환경과학회 간행물 : 한국환경과학회지 21권 2호 발행 연도 : 2012 페이지 : pp. 233-240 (8 pages)

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In this study, the alkiline water washing condition of mackerel(Scomber japonicus) dark meat was investigated to improve processing conditions of red muscle fish meat paste heating gel. Chemical alkaline water(CWM) and electrolytic alkiline water(EWM, pH 12) were used for washing the mackerel raw meat. Washed meats were minced with 2.5% salt and heated at 90℃/15 min to testing texture profile analysis. Moisture of CWM and EWM was increased with both washing times(p<0.05). Crude lipids and protiens were decreased with washing times. Lightness of chemical alkaline water washed mackerel heated paste gel(CWHPG) was higher than electrolytic alkaline water washed mackerel heated paste gel(EWHPG). Redness and yellowness were more decreased than control meats. Jelly strength of CWHPG and EWHPG was not increased more than 2 times wased meat and was increased with protein decrease. Texture profile analysis, max force1 of CWHPG and EWHPG was higher hardeness than the control meat except gel strains. From these results, it could be suggested that electric alkialine water washing is also effective in advance the red meat paste heating gel process of kamaboko industry.

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