수치예보자료를 이용한 강우 및 홍수 예측 적용성 평가

문혜진(Moon, Hyejin),유완식(Yu, Wansik),정관수(Jung, Kwansue) 한국방재학회 2017 한국방재학회 학술발표대회논문집 Vol.2017 No.-

도시침수 관리를 위한 침수 위험기준 개발 및 적정성 평가

문혜진(Hyejin, Moon),조재웅(Jaewoong, Cho),강호선(Hoseon, Kang),이한승(Hanseung, Lee),이승재(Seungje, Lee) 대한토목학회 2022 대한토목학회 학술대회 Vol.2022 No.10

시대적 거울로서의 틈새 공간

문혜진(Mun Hyejin) 한국근현대미술사학회 2010 한국근현대미술사학 Vol.21 No.-

세 가지 재분석 자료에서의 겨울철 북반구 평균 자오면 순환-에디 상호작용

문혜진(Hyejin Moon),하경자(Kyung-Ja Ha) 한국기상학회 2015 대기 Vol.25 No.3

The present study examines an interaction between the eddy and mean meridional circulation (MMC) comparing the results in three reanalysis data sets including ERA-Interim, NCEP2, and JRA-55 during the boreal winter in the Northern Hemisphere. It is noteworthy that the JRA-55 tends to produce stronger MMC compared to those of others, which is mainly due to the weak eddy flux. ERA-Interim represents the ensemble averages of MMC. The MMC-eddy interaction equation was adopted to investigate the scale interaction of the eddy momentum flux (EMF), eddy heat flux (EHF), and diabatic heating (DHT) with MMC. The EMF (EHF) shows a significant correlation coefficient with streamfunction under (above) 200 hPa-level. The perturbation (time mean) part of each eddy is dominant compared to another part in the EMF (EHF). The DHT is strongly interacted with streamfunction in the region between the equator and extra-tropical latitude over whole vertical column. Thus, the dominant term in each significant region modulates interannual variability of MMC. The inverse (proportional) relationship between MMC and pressure (meridional) derivative of the momentum (heat) divergence contributions is well represented in the three reanalysis data sets. The region modulated interannual variability of MMC by both EMF and DHT (EHF) is similar in ERA-Interim and JRA-55 (ERA-Interim and NCEP2). JRA-55 shows a lack of significant region of EHF due to the high resolution, compared to other data sets.

CMIP5 MME와 Best 모델의 비교를 통해 살펴본 미래전망

문혜진(Hyejin Moon),김병희(Byeong-Hee Kim),오효은(Hyoeun Oh),이준이(June-Yi Lee),하경자(Kyung-Ja Ha) 한국기상학회 2014 대기 Vol.24 No.3

Future changes in seasonal mean temperature and precipitation over East Asia under anthropogenic global warming are investigated by comparing the historical run for 1979~2005 and the Representative Concentration Pathway (RCP) 4.5 run for 2006~2100 with 20 coupled models which participated in the phase five of Coupled Model Inter-comparison Project (CMIP5). Although an increase in future temperature over the East Asian monsoon region has been commonly accepted, the prediction of future precipitation under global warming still has considerable uncertainties with a large inter-model spread. Thus, we select best five models, based on the evaluation of models’ performance in present climate for boreal summer and winter seasons, to reduce uncertainties in future projection. Overall, the CMIP5 models better simulate climatological temperature and precipitation over East Asia than the phase 3 of CMIP and the five best models’ multi-model ensemble (B5MME) has better performance than all 20 models’ multi-model ensemble (MME). Under anthropogenic global warming, significant increases are expected in both temperature and land-ocean thermal contrast over the entire East Asia region during both seasons for near and long term future. The contrast of future precipitation in winter between land and ocean will decrease over East Asia whereas that in summer particularly over the Korean Peninsula, associated with the Changma, will increase. Taking into account model validation and uncertainty estimation, this study has made an effort on providing a more reliable range of future change for temperature and precipitation particularly over the Korean Peninsula than previous studies.

북반구 겨울철 에디들에 의한 운동량, 열 그리고 수분 수송

문혜진(Hyejin Moon),하경자(Kyung-Ja Ha) 한국기상학회 2016 대기 Vol.26 No.4

This study investigates eddy transports in terms of space and time for momentum, heat, and moisture, emphasizing comparison of the results in three reanalysis data sets including ERA-Interim from the European Center for Medium-range Weather Forecasts (ECMWF), NCEP2 from the National Center for Environmental Prediction and the Department of Energy (NCEP-DOE), and JRA-55 from the Japan Meteorological Agency (JMA) during boreal winter. The magnitudes for eddy transports of momentum in ERA-Interim are represented as the strongest value in comparison of three data sets, which may be mainly come from that both zonal averaged meridional and zonal wind tend to follow the hierarchy of ERA-Interim, NCEP2, and JRA-55. Whereas in relation to heat and moisture eddy transports, those of NCEP2 are the strongest, implying that zonal averaged air temperature (specific humidity) tend to follow the raking of NCEP2, ERA-Interim, and JRA-55 (NCEP2, JRA-55, and ERA-Interim), except that transient eddy transports for heat in ERA-Interim are the strongest involving both meridional wind and air temperature. The stationary and transient eddy transports in the context of space and time correlation, and intensity of standard deviation demonstrate that the correlation (intensity of standard deviation) influence the structure (magnitude) of eddy transports. The similarity between ERA-Interim and NCEP2 (ERA-Interim and JRA-55) of space correlation (time correlation) closely resembles among three data sets. A resemblance among reanalysis data sets of space correlation is larger than that of time correlation.

Atmospheric River 상륙이 한반도 강수와 기온에 미치는 영향 연구

문혜진(Hyejin Moon),김진원(Jinwon Kim),Bin Guan,Duane E. Waliser,최준태 (Juntae Choi),구태영(Tae-Young Goo),김영미(Youngmi Kim),변영화(Young-Hwa Byun) 한국기상학회 2019 대기 Vol.29 No.4

The seasonal climatology of atmospheric rivers (ARs) and their effects on the seasonal precipitation and temperature in Korea are examined using the AR chronology obtained by a methodology based on the vertically integrated water vapor transport (IVT) in conjunction with a fine-scale gridded analysis of station precipitation and temperature. ARs are found to affect Korea most heavily in the warm season with minimal impacts in winter. This contrasts the AR effects in the western North America and the Western Europe that are affected most in winters. Significant portions of precipitation in Korea are associated with AR landfalls for all seasons; over 35% (25%) of the summer (winter) rainfall in the southern part of the Korean peninsula. The percentage of AR precipitation over Korea decreases rapidly towards the north. AR landfalls are also associated with heavier-than-normal precipitation events for all seasons. AR landfalls are associated with above-normal temperatures in Korea; the warm anomalies increase towards the north. The warm anomalies during AR landfalls are primarily related to the reduction in cold episodes as the AR landfalls in Korea are accompanied by anomalous southerlies/southwesterlies.

Cerebral oxidative stress and angiotensin Ⅱ signaling in chronic isoproterenol-infused rabbits

Hyejin Moon(문혜진),Hyunju Kim(김현주),Nari Kim(김나리),Hyun Joo(주현),Jae boum Youm(염재범),Won sun Park(박원선),Hyunsuk Lee(이현숙),Sunghyun Kang(강성현),Dang Van Cuong,Hyoung kyu Kim(김형규),Teaho Kim(김태호),Tran Minh Khoa,Vu 한국생물공학회 2005 한국생물공학회 학술대회 Vol.2005 No.10

4차 산업혁명 시대의 혁신복잡성이 혁신실행과정에 미치는 영향 : 직무요구-자원 모형을 중심으로

최세연(Se Yeon Choi),문혜진(Hyejin Moon) 한국인사관리학회 2021 조직과 인사관리연구 Vol.45 No.3

오늘날의 경영환경은 4차 산업혁명의 흐름 속에서 급속한 변화와 치열한 글로벌 경쟁에 직면해 있다. 이러한 경영환경 속에서 조직의 생존과 지속가능한 성장을 위해 핵심적인 역할을 하는 혁신은 그 어느 때보다 복잡해지고 있다. 복잡한 혁신을 성공적으로 실행하는 것은 혁신의 성패는 물론 조직의 생존에도 중요하지만, 혁신복잡성에 관한 기존의 연구결과들은 일관되지 않으며, 대부분이 혁신의 도입에만 초점을 맞추고 있어 혁신실행 과정에 미치는 과정을 규명하는 실증연구는 아직 부족하다. 또한, 대부분의 연구는 집단 및 조직수준으로 이루어져 있어 혁신의 실제 사용자인 구성원들의 관점이 반영되지 않고 있다. 이러한 선행연구의 제한점을 극복하기 위해 본 연구는 혁신복잡성이 구성원들의 혁신실행 및 그 결과에 미치는 영향에 대하여 탐색하는 것을 목적으로 한다. 구체적으로, 직무요구-자원모형을 이론적 토대로 하여 직무요구로서의 혁신복잡성이 구성원들의 혁신학습에 및 그 결과인 혁신효과성에 미치는 영향을 검증하고, 그 과정에서 직무자원이자 상황변수인 혁신실행 자율성의 조절효과 및 조절된 매개효과를 검증하는 것을 목표로 한다. 본 연구의 가설을 검증하기 위하여 중국 제조업군의 대기업에 근무하는 171명의 구성원과 50명의 상사를 대상으로 실증연구를 실시하였다. 그 결과, 혁신복잡성은 혁신학습에, 혁신학습은 혁신효과성에 각각 정적인 영향을 미쳤으며, 혁신학습은 혁신복잡성과 혁신효과성의 관계를 매개하는 것으로 나타났다. 또한, 혁신실행 자율성은 혁신복잡성과 상호작용을 통하여 혁신학습에 미치는 영향을 조절하고, 더 나아가 혁신학습의 매개역할을 조절하는 조절된 매개효과를 갖는 것으로 밝혀졌다. 이러한 연구결과를 통해 혁신복잡성은 구성원의 혁신학습을 통하여 혁신의 성공적인 실행에 도움이 된다는 이론적인 시사점과 함께 혁신실행과정에 관한 실무적인 시사점을 제시하였다. Rapid changes and fierce global competition in the fourth industrial revolution are adding complexity to the evolution of organizations’ essential innovations. However, the question of how innovation complexity affects innovation implementation processes is yet to be answered whereas successful implementation of complex innovation determines not only the outcome of the given innovation but also overall firm survival. To fill the gap, the current research, based on the Job Demands-Resources model, aimed to test whether the effect of innovation complexity on innovation effectiveness is mediated by innovation learning whereas a contextual variable, innovation implementation autonomy, moderates the relationship between innovation complexity and innovation learning. In order to test the hypotheses, a survey was conducted to 171 employees and 50 managers who work for a manufacturing company located in China. The results showed that innovation complexity was positively related with both innovation learning and innovation effectiveness. In addition, innovation learning was found to fully mediate the relationship between innovation complexity and innovation effectiveness. As hypothesized, innovation implementation autonomy interacted with innovation complexity to affect innovation learning; as a result, innovation implementation autonomy had a moderated mediation effect in the relationship between innovation complexity and innovation effectiveness. Based on the above findings, theoretical implication in regard to the JD-R model and practical implication on innovation implementation processes were provided.

CMIP5 MME와 Best 모델의 비교를 통해 살펴본 미래전망

김병희(Byeong-Hee Kim),문혜진(Hyejin Moon),하경자(Kyung-Ja Ha) 한국기상학회 2015 대기 Vol.25 No.2

The changes in thermodynamic and dynamic aspects on near (2025~2049) and long-term (2075~2099) future climate changes between the historical run (1979~2005) and the Representative Concentration Pathway (RCP) 4.5 run with 20 coupled models which employed in the phase five of Coupled Model Inter-comparison Project (CMIP5) over East Asia (EA) and the Korean Peninsula are investigated as an extended study for Moon et al. (2014) study noted that the 20 models’ multi-model ensemble (MME) and best five models’ multi-model ensemble (B5MME) have a different increasing trend of precipitation during the boreal winter and summer, in spite of a similar increasing trend of surface air temperature, especially over the Korean Peninsula. Comparing the MME and B5MME, the dynamic factor (the convergence of mean moisture by anomalous wind) and the thermodynamic factor (the convergence of anomalous moisture by mean wind) in terms of moisture flux convergence are analyzed. As a result, the dynamic factor causes the lower increasing trend of precipitation in B5MME than the MME during the boreal winter and summer over EA. However, over the Korean Peninsula, the dynamic factor causes the lower increasing trend of precipitation in B5MME than the MME during the boreal winter, whereas the thermodynamic factor causes the higher increasing trend of precipitation in B5MME than the MME during the boreal summer. Therefore, it can be noted that the difference between MME and B5MME on the change in precipitation is affected by dynamic (thermodynamic) factor during the boreal winter (summer) over the Korean Peninsula.