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MODIS 자료의 에어로졸의 광학적 두께를 이용한 제주지역의 지표면 PM<sub>2.5</sub> 농도 추정
김관철 ( Kwanchul Kim ),이다솜 ( Dasom Lee ),이광열 ( Kwang-yul Lee ),이권호 ( Kwonho Lee ),노영민 ( Youngmin Noh ) 대한원격탐사학회 2016 大韓遠隔探査學會誌 Vol.32 No.5
In this study, correlations between Moderate Resolution Imaging Spectroradiometer (MODIS) derived Aerosol Optical Depth (AOD) values and surface-level PM<sub>2.5</sub> concentrations at Gosan, Korea have been investigated. For this purpose, data from various instruments, such as satellite, sunphotometer, Optical Particle Counter (OPC), and Micro Pulse Lidar (MPL) on 14-24 October 2009 were used. Direct comparison between sunphotometer measured AOD and surface-level PM<sub>2.5</sub> concentrations showed a R<sup>2</sup> = 0.48. Since the AERONET L2.0 data has significant number of observations with high AOD values paired to low surface-level PM<sub>2.5</sub> values, which were believed to be the effect of thin cloud or Asian dust. Correlations between MODIS AOD and PM<sub>2.5</sub> concentration were increased by screening thin clouds and Asian dust cases by use of aerosol profile data on Micro-Pulse Lidar Network (MPLNet) as R<sup>2</sup> > 0.60. Our study clearly demonstrates that satellite derived AOD is a good surrogate for monitoring atmospheric PM concentration.
이정재,이임순,이권해,조창규,이광열,조태호 순천향대학교 1993 논문집 Vol.16 No.4
The induction of grand multiple gestations is a well known complication of the infertility treatment. The hMG that has been used in the treatment of female infertility may increase the frequency of multiple gestations. The over-triplet pregnancies have chances of poor obstetric outcomes than in the lower-number of conceptuses (ie. postpartum hemorrhage, PIH, preterm labor, abortion, cost for the care, etc). The over-quadruplets also have a chance of worse outcome than in the triplets, and it is needed to reduce the number of conceptuses for preventing the poor fetal and maternal morbidity and mortality. We believe that the selective first-trimester termination is an acceptable and suitable answer in these cases. We have experienced a case of the selective first-tirmester termination in sextuplet pregnancy, who had been treated with hMG for infertility treatment. In this case, the gestations were reduced to twins. We present this case with a brief review of literature.