Characteristics of regional scale atmospheric dispersion around Ki-Jang research reactor using the Lagrangian Gaussian puff dispersion model
The Ki-Jang research reactor (KJRR), a new research reactor in Korea, is being planned to fulfill multiple purposes. In this study, as an assessment of the environmental radiological impact, we characterized the atmospheric dispersion and deposition of radioactive materials released by an unexpected...
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| Format: | Article |
| Language: | English |
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Elsevier
2018-02-01
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| Series: | Nuclear Engineering and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S173857331730181X |
| _version_ | 1818143060940292096 |
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| author | Geun-Sik Choi Jong-Myoung Lim Kyo-Sun Sunny Lim Ki-Hyun Kim Jin-Hong Lee |
| author_facet | Geun-Sik Choi Jong-Myoung Lim Kyo-Sun Sunny Lim Ki-Hyun Kim Jin-Hong Lee |
| author_sort | Geun-Sik Choi |
| collection | DOAJ |
| description | The Ki-Jang research reactor (KJRR), a new research reactor in Korea, is being planned to fulfill multiple purposes. In this study, as an assessment of the environmental radiological impact, we characterized the atmospheric dispersion and deposition of radioactive materials released by an unexpected incident at KJRR using the weather research and forecasting–mesoscale model interface program–California Puff (WRF–MMIF–CALPUFF) model system. Based on the reproduced three-dimensional gridded meteorological data obtained during a 1-year period using WRF, the overall meteorological data predicted by WRF were in agreement with the observed data, while the predicted wind speed data were slightly overestimated at all stations. Based on the CALPUFF simulation of atmospheric dispersion (χ/Q) and deposition (D/Q) factors, relatively heavier contamination in the vicinity of KJRR was observed, and the prevailing land breeze wind in the study area resulted in relatively higher concentration and deposition in the off-shore area sectors. We also compared the dispersion characteristics between the PAVAN (atmospheric dispersion of radioactive release from nuclear power plants) and CALPUFF models. Finally, the meteorological conditions and possibility of high doses of radiation for relatively higher hourly χ/Q cases were examined at specific discrete receptors. |
| first_indexed | 2024-12-11T11:25:40Z |
| format | Article |
| id | doaj.art-dd2535ba4a204760a365b86b54dfcc09 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-11T11:25:40Z |
| publishDate | 2018-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-dd2535ba4a204760a365b86b54dfcc092022-12-22T01:09:01ZengElsevierNuclear Engineering and Technology1738-57332018-02-01501687910.1016/j.net.2017.10.002Characteristics of regional scale atmospheric dispersion around Ki-Jang research reactor using the Lagrangian Gaussian puff dispersion modelGeun-Sik Choi0Jong-Myoung Lim1Kyo-Sun Sunny Lim2Ki-Hyun Kim3Jin-Hong Lee4Environmental Radioactivity Assessment Team, Korea Atomic Energy Research Institute, 111, Daedeok-daero 989, Yuseong-gu, Daejeon, 305-353, South KoreaEnvironmental Radioactivity Assessment Team, Korea Atomic Energy Research Institute, 111, Daedeok-daero 989, Yuseong-gu, Daejeon, 305-353, South KoreaEnvironmental Radioactivity Assessment Team, Korea Atomic Energy Research Institute, 111, Daedeok-daero 989, Yuseong-gu, Daejeon, 305-353, South KoreaDepartment of Civil & Environmental Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul 133-791, South KoreaDepartment of Environmental Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South KoreaThe Ki-Jang research reactor (KJRR), a new research reactor in Korea, is being planned to fulfill multiple purposes. In this study, as an assessment of the environmental radiological impact, we characterized the atmospheric dispersion and deposition of radioactive materials released by an unexpected incident at KJRR using the weather research and forecasting–mesoscale model interface program–California Puff (WRF–MMIF–CALPUFF) model system. Based on the reproduced three-dimensional gridded meteorological data obtained during a 1-year period using WRF, the overall meteorological data predicted by WRF were in agreement with the observed data, while the predicted wind speed data were slightly overestimated at all stations. Based on the CALPUFF simulation of atmospheric dispersion (χ/Q) and deposition (D/Q) factors, relatively heavier contamination in the vicinity of KJRR was observed, and the prevailing land breeze wind in the study area resulted in relatively higher concentration and deposition in the off-shore area sectors. We also compared the dispersion characteristics between the PAVAN (atmospheric dispersion of radioactive release from nuclear power plants) and CALPUFF models. Finally, the meteorological conditions and possibility of high doses of radiation for relatively higher hourly χ/Q cases were examined at specific discrete receptors.http://www.sciencedirect.com/science/article/pii/S173857331730181XAtmospheric Dispersion of Radioactive MaterialsCalifornia PuffKi-Jang Research Reactorweather research and forecasting |
| spellingShingle | Geun-Sik Choi Jong-Myoung Lim Kyo-Sun Sunny Lim Ki-Hyun Kim Jin-Hong Lee Characteristics of regional scale atmospheric dispersion around Ki-Jang research reactor using the Lagrangian Gaussian puff dispersion model Nuclear Engineering and Technology Atmospheric Dispersion of Radioactive Materials California Puff Ki-Jang Research Reactor weather research and forecasting |
| title | Characteristics of regional scale atmospheric dispersion around Ki-Jang research reactor using the Lagrangian Gaussian puff dispersion model |
| title_full | Characteristics of regional scale atmospheric dispersion around Ki-Jang research reactor using the Lagrangian Gaussian puff dispersion model |
| title_fullStr | Characteristics of regional scale atmospheric dispersion around Ki-Jang research reactor using the Lagrangian Gaussian puff dispersion model |
| title_full_unstemmed | Characteristics of regional scale atmospheric dispersion around Ki-Jang research reactor using the Lagrangian Gaussian puff dispersion model |
| title_short | Characteristics of regional scale atmospheric dispersion around Ki-Jang research reactor using the Lagrangian Gaussian puff dispersion model |
| title_sort | characteristics of regional scale atmospheric dispersion around ki jang research reactor using the lagrangian gaussian puff dispersion model |
| topic | Atmospheric Dispersion of Radioactive Materials California Puff Ki-Jang Research Reactor weather research and forecasting |
| url | http://www.sciencedirect.com/science/article/pii/S173857331730181X |
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