우리나라 생활계 온실가스 배출 특성 분석

명수정 ( Soo Jeong Myeong ),유동헌 ( Dong Heon Yoo ) 한국환경영향평가학회 2012 환경영향평가 Vol.21 No.2

The present study attempts to understand the emission pattern of greenhouse gases in people`s daily life through the estimation and analysis of the amount and characteristics of the greenhouse gases. Based on the survey of 1,000 people throughout the nation, monthly emission of greenhouse gases per-capita was estimated from their use of fuels, electricity, water, and personal and public transportation means in addition to their waste generation. In the case of personal car drivers, greenhouse gas emission was the greatest from their cars, followed by the emission from electricity, fuels, and public transportation. Emission from water consumption and waste generation was relatively low. Fuel consumption varied depending on the number of household members, their housing type, and the size of their living spaces. Results showed that single-person households emitted the largest amount of per-capita greenhouse gas while greenhouse gas emission from electricity was inversely proportional to the number of persons in a given household.

우리나라 사회기반시설의 기후변화 취약성 평가 -전문가 설문조사를 바탕으로

명수정 ( Soo Jeong Myeong ),이동규 ( Dong Gyu Yi ) 한국환경영향평가학회 2009 환경영향평가 Vol.18 No.6

소나무 뿌리 폐기물을 이용한 목질 펠릿 제조 - 목부와 뿌리로 제조한 펠릿의 특성 비교

신수정(Shin, Soo-Jeong),한규성(Han, Gyu-Seong),명수정(Myeong, Soo-Jeong),조중식(Cho, Jung-Sik),연익준(Yeon, Ik-Jun) 한국신재생에너지학회 2008 한국신재생에너지학회 학술대회논문집 Vol.2008 No.10

Different biosolid fuel (wood pellet) properties between trunk and root of pine (Pinus densiflora) biomass were investigated. Trunk has more organic solvent extracts and Klason lignin content which has higher heating values than root biomass component. In root biomass, polysaccharides content was higher than trunk biomass. Based on Higher Heating Value (HHD) analysis and ash content, trunk biomass showed better solid fuel characteristics than root biomass. But pine root biomass had lower HHD than trunk biomass, its HHD values were higher than other hardwood or annual plant lignocellulosic biomass.

레이더 위성영상을 활용한 침수피해 지역 파악 및 완화방안 연구

이명진 ( Moung Jin Lee ),명수정 ( Soo Jeong Myeong ),전성우 ( Seong Woo Jeon ),원중선 ( Joong Sun Won ) 한국환경정책평가연구원 2009 환경정책연구 Vol.8 No.2

본 연구는 레이더 위성영상을 활용한 침수피해 지역 파악 및 그 완화방안의 도출을 위해 실제 침수지역을 대상으로 레이더 위성 영상의 침수피해에의 활용가능성을 살펴보았다. 이를 위하여 시계열 레이더 위성영상 자료를 활용하여 홍수에 취약한 침수 지역을 추출하고, 동일지역의 토지이용도에 대한 GIS 중첩분석을 통하여 토지이용 현황별 침수피해를 분석하였다. 사례 분석지역의 경우 침수피해가 심한 토지이용 형태는 농경지와 숲으로 나타났다. 본 연구는 레이더 위성영상을 활용하여 구축 가능한 침수피해 지도를 바탕으로 침수피해 완화를 위한 대응정책도 함께 논의하였다. 침수가 발생할 경우 긴급복구와 같은 위기대응적 접근도 중요하지만 무엇보다도 침수피해 지도와 같은 자료를 기반으로 위험한 지역에 건물의 입지를 제한하는 등 상습 침수피해 지역이 개발되지 않도록 예방적 차원에서의 토지이용적 접근을 하여야 할 것이다. 본 연구에서 제안한 방안은 레이더 위성 영상의 환경 분야 활용과 침수피해를 최소화하는 방안의 일부이며, 레이더 위성영상은 대규모 홍수와 같은 재해문제 이외에도 다양한 환경 분야에 있어 활용잠재력이 높으므로 향후 다양한 지역을 대상으로 레이더 위성영상을 여러 환경문제에 적용하는 연구가 계속되어야할 것이다. This study applied satellite radar imagery to identify flooded areas and examined post-flooding conditions using time-series satellite radar imagery for the development of flood damage mitigation strategies. Using time-series satellite radar images, this study constructed a map delineating areas vulnerable to frequent flood damage. The extracted flooded areas were combined with reference land use maps to examine flood damage by land use type. Major landuse types with severe flood damage were agricultural and forested areas. The analysis of the damage conditions, in terms of land use, served as the basis for developing flood damage mitigation policies, in conjunction with land use planning. The policies for flood damage mitigation can be summarized as land use regulations, land use planning, and flood damage mapping. A preventive measure to minimize flood damage of properties, which regulates developing areas with high flooding potential, is highly recommended. Although this study suggested a number of policies for flood damage mitigation, they represent only a small number of possible policies useful for mitigating flood damage and other environmental problems. Based upon the results of this study, it may be concluded that satellite radar imagery has great potential in providing basic data for large-scale environmental problems such as flooding and oil spills. Nevertheless, further examinations should be conducted and the application of satellite radar imagery should be used to examine other environmental problems.

시멘트산업의 CO₂ 배출계수 개발 및 대체연료 사용에 의한 온실가스 저감량 산정 연구

윤석경(Seok-Kyung Yoon),명수정(Soo-Jeong Myeong),장태혁(Tae-Hyeog Jang),김진수(Jin-Su Kim),이시형(See-Hyung Lee),김기현(Ki-Hyun Kim),전의찬(Eui-Chan Jeon) 한국대기환경학회 2008 한국대기환경학회지 Vol.24 No.2

We developed emission factors for alternative fuels used in cement industries in Korea and also estimated reduction in emissions of greenhouse gas (GHG) by the use of alternative fuels. Emission factors for GHG of waste tire, waste plastic, waste oil and RDF were estimated to be about 89, 78, 77 and 95 ton CO₂/TJ respectively. When compared with previous studies, most of the results showed similar trends. The calorific value estimation and elemental analysis for energy source were implemented in order to estimate the exact emission factors and the reduction of GHG emissions using alternative fuel. In the case of ‘A’ company, CO₂ emission from alternative fuels was about 4% lower than that of bituminous coal only. Also in case of company ‘B’, CO₂ emission from alternative fuels was about 1.4% lower than that of only bituminous coal. In Germany and Japan, alternative fuel is not regarded to be fuel consumption in cement industry. When applying this rule, the emission reductions were about 4.3% for company ‘A’ and 6.3% for company ‘B’. The results of this study may be considered as a useful information for developing strategies in reducing GHG emissions.

우리나라 B-C유 사용 발전시설의 온실가스 배출계수 개발

김진수 ( Jin Su Kim ),이시형 ( See Hyung Lee ),명수정 ( Soo Jeong Myeong ),정재학 ( Jae Hak Jeong ),이성호 ( Seong Ho Lee ),김기현 ( Ki Hyun Kim ),배위섭 ( Wi Sup Bae ),전의찬 ( Eui Chan Jeon ) 한국환경영향평가학회 2009 환경영향평가 Vol.18 No.2

MODIS 광합성유효복사흡수율과 WRF 기상자료를 이용한 북한지역의 총일차 생산성 추정

도나영 ( Na Young Do ),강신규 ( Sin Kyu Kang ),명수정 ( Soo Jeong Myeong ),천태훈 ( Tae Hun Chun ),이지혜 ( Ji Hye Lee ),이종범 ( Chong Bum Lee ) 대한원격탐사학회 2012 大韓遠隔探査學會誌 Vol.28 No.2

미국항공우주국(NASA)의 MODIS GPP 자료는 육상식생의 총일차생산성(GPP) 모니터링에 중요한 수단을 제공한다. 그러나 GPP 추정의 입력자료로 사용하는 DAO기상자료의 거친 공간해상도(1.25°×1°)와 FPAR 자료의 구름영향에 의한 신뢰도 저하 등은 지역 수준의 GPP 모니터링에 문제를 야기한다. 이연구에서는 북한지역을 대상으로 FPAR의 구름영향 제거하고 고해상도(3 km×3 km) WRF 기상자료를 사용함으로써 입력자료의 문제를 개선한 GPP를 추정한 후, 2000-2008년 간의 GPP 연간 변동특성 및 지역적 분포특성을 분석하였다. 개선한 GPP는 2000년의 645gC m-2 y-1에서 2008년의 863 gC m-2 y-1까지 변화하였고, 혼효림지역이 1,076gC m-2 y-1으로 가장 큰 값을 보였다. NASA GPP (790gC m-2 y-1)에 비해 FPAR 개선 후 GPP가 증가하였고(861), WRF 자료 이용 시 감소(710), FPAR와 WRF 자료 이용 시다소 증가(809)하는 양상을 보였다. 개선효과는 북한에서 제일 큰 면적을 차지한 혼효림에서 가장 뚜렷하였다(+10.2%). 한편 WRF 기상자료가 DAO에 비해 지형적 영향을 보다 잘 반영함으로써, 결과적으로 개선한 GPP의 공간이질성이 증가한 것으로 나타났다. 각 피복유형별 연간변동성을 분석한 결과 개선한 GPP는 NASA GPP와 상이한 연간변화를 보였다. 위 결과들을 종합하면, 북한 등의 지역수준의 GPP 모니터링을 목적으로할 경우, 입력자료의 개선에 의한 MODIS GPP를 재산출할 필요가 있다고 보여진다. NASA MODIS GPP provides a useful tool to monitor global terrestrial vegetation productivity. Two major problems of NASA GPP in regional applications are coarse spatial resolution (1.25˚×1˚) of DAO meteorological data and cloud contamination of MODIS FPAR product. In this study, we improved the NASA GPP by using enhanced input data of high spatial resolution (3 km×3km) WRF meteorological data and cloud-corrected FPAR over the North Korea. The improved GPP was utilized to investigate characteristics of GPP interannual variation and spatial patterns from 2000 to 2008. The GPP varied from 645 to 863 gC m-2 y-1 in 2000 and 2008, respectively. Mixed forest showed the highest GPP (1,076gC m-2 y-1). Compared to NASA GPP (790gC m-2 y-1), FPAR enhancement increased GPP (861) but utilization of WRF data decreased GPP (710). Enhancements of both FPAR and meteorological input resulted in GPP increase (809) and the improvement was the greatest for mixed forest regions (+10.2%). The improved GPP showed better spatial heterogeneity reflecting local topography due to high resolution WRF data. It is remarkable that the improved and NASA GPPs showed distinctly different interannual variations with each other. Our study indicates improvement of NASA GPP by enhancing input variables is necessary to monitor region-scale terrestrial vegetation productivity.