Characteristics of STILT footprints driven by KIM model simulated meteorological fields: implication for developing near real-time footprints
Abstract This study presents an analysis of the atmospheric footprint sensitivities and CO2 enhancements measured at three in situ stations in South Korea (Anmyeondo (AMY), Gosan (JGS), Ulleungdo (ULD)) using the KIM-STILT and WRF-STILT atmospheric transport models. Monthly aggregated footprints for...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Springer
2023-10-01
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| Series: | Asian Journal of Atmospheric Environment |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s44273-023-00016-7 |
| _version_ | 1827604401677664256 |
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| author | Samuel Takele Kenea Haeyoung Lee Sangwon Joo Miloslav Belorid Shanlan Li Lev D. Labzovskii Sanghun Park |
| author_facet | Samuel Takele Kenea Haeyoung Lee Sangwon Joo Miloslav Belorid Shanlan Li Lev D. Labzovskii Sanghun Park |
| author_sort | Samuel Takele Kenea |
| collection | DOAJ |
| description | Abstract This study presents an analysis of the atmospheric footprint sensitivities and CO2 enhancements measured at three in situ stations in South Korea (Anmyeondo (AMY), Gosan (JGS), Ulleungdo (ULD)) using the KIM-STILT and WRF-STILT atmospheric transport models. Monthly aggregated footprints for each station were compared between the models for July and December 2020. The footprints revealed major source regions and the sensitivity of atmospheric mole fractions at the receptor to upstream surface fluxes. In July, both models showed similar major source regions for the AMY station, including Korea, the Yellow Sea, and Japan. However, a discrepancy was observed in the Eastern Pacific Ocean, with KIM-STILT showing larger sensitivity compared to WRF-STILT. In December, both models indicated strong sensitivity over Northeast and Eastern China, but KIM-STILT exhibited smaller sensitivities towards Northwestern China and Mongolia compared to WRF-STILT. At station ULD in July, both models exhibited comparable source regions, but a notable difference was found in Southeast China, where KIM-STILT showed stronger sensitivity. For the JGS station, both models agreed on major sources, but WRF-STILT demonstrated stronger sensitivity over North and Northeastern China. Regarding CO2 enhancements, both models generally underestimated the amplitude of CO2 enhancements, especially in July. However, in December, there was better agreement with observed data. The models were able to reproduce the phase of measured ΔCO2 reasonably well despite the underestimation of CO2 amplitudes. The contribution of biospheric CO2 to the observed enhancements, along with fossil-fuel emissions, was highlighted. In specific cases with significant CO2 enhancements, the models provided varying estimates of CO2ff values, particularly in the source regions of Eastern China. The differences in sensitivity estimations emphasize the need for further investigation to understand the underlying factors causing disparities. Overall, this study provides valuable insights into the potential advantages of each model in capturing dispersion patterns in specific regions, highlighting the importance of understanding these differences to improve the accuracy of atmospheric transport models. Further work is necessary to address the observed disparities and enhance our understanding of the transport models in the studied regions. |
| first_indexed | 2024-03-09T05:58:31Z |
| format | Article |
| id | doaj.art-a532734d8704495ba043b545ba32ac86 |
| institution | Directory Open Access Journal |
| issn | 2287-1160 |
| language | English |
| last_indexed | 2024-03-09T05:58:31Z |
| publishDate | 2023-10-01 |
| publisher | Springer |
| record_format | Article |
| series | Asian Journal of Atmospheric Environment |
| spelling | doaj.art-a532734d8704495ba043b545ba32ac862023-12-03T12:11:23ZengSpringerAsian Journal of Atmospheric Environment2287-11602023-10-0117111410.1007/s44273-023-00016-7Characteristics of STILT footprints driven by KIM model simulated meteorological fields: implication for developing near real-time footprintsSamuel Takele Kenea0Haeyoung Lee1Sangwon Joo2Miloslav Belorid3Shanlan Li4Lev D. Labzovskii5Sanghun Park6Climate Research Department, National Institute of Meteorological Sciences (NIMS)Climate Research Department, National Institute of Meteorological Sciences (NIMS)Climate Research Department, National Institute of Meteorological Sciences (NIMS)Application Research Department, National Institute of Meteorological Sciences (NIMS)Climate Research Department, National Institute of Meteorological Sciences (NIMS)R&D Satellite and Observations Group, Royal Netherlands Meteorological Institute (KNMI)Laboratory for Atmospheric Modeling Research, Yonsei UniversityAbstract This study presents an analysis of the atmospheric footprint sensitivities and CO2 enhancements measured at three in situ stations in South Korea (Anmyeondo (AMY), Gosan (JGS), Ulleungdo (ULD)) using the KIM-STILT and WRF-STILT atmospheric transport models. Monthly aggregated footprints for each station were compared between the models for July and December 2020. The footprints revealed major source regions and the sensitivity of atmospheric mole fractions at the receptor to upstream surface fluxes. In July, both models showed similar major source regions for the AMY station, including Korea, the Yellow Sea, and Japan. However, a discrepancy was observed in the Eastern Pacific Ocean, with KIM-STILT showing larger sensitivity compared to WRF-STILT. In December, both models indicated strong sensitivity over Northeast and Eastern China, but KIM-STILT exhibited smaller sensitivities towards Northwestern China and Mongolia compared to WRF-STILT. At station ULD in July, both models exhibited comparable source regions, but a notable difference was found in Southeast China, where KIM-STILT showed stronger sensitivity. For the JGS station, both models agreed on major sources, but WRF-STILT demonstrated stronger sensitivity over North and Northeastern China. Regarding CO2 enhancements, both models generally underestimated the amplitude of CO2 enhancements, especially in July. However, in December, there was better agreement with observed data. The models were able to reproduce the phase of measured ΔCO2 reasonably well despite the underestimation of CO2 amplitudes. The contribution of biospheric CO2 to the observed enhancements, along with fossil-fuel emissions, was highlighted. In specific cases with significant CO2 enhancements, the models provided varying estimates of CO2ff values, particularly in the source regions of Eastern China. The differences in sensitivity estimations emphasize the need for further investigation to understand the underlying factors causing disparities. Overall, this study provides valuable insights into the potential advantages of each model in capturing dispersion patterns in specific regions, highlighting the importance of understanding these differences to improve the accuracy of atmospheric transport models. Further work is necessary to address the observed disparities and enhance our understanding of the transport models in the studied regions.https://doi.org/10.1007/s44273-023-00016-7KIM-STILTAtmospheric CO2CO2ffWRF-STILT |
| spellingShingle | Samuel Takele Kenea Haeyoung Lee Sangwon Joo Miloslav Belorid Shanlan Li Lev D. Labzovskii Sanghun Park Characteristics of STILT footprints driven by KIM model simulated meteorological fields: implication for developing near real-time footprints Asian Journal of Atmospheric Environment KIM-STILT Atmospheric CO2 CO2ff WRF-STILT |
| title | Characteristics of STILT footprints driven by KIM model simulated meteorological fields: implication for developing near real-time footprints |
| title_full | Characteristics of STILT footprints driven by KIM model simulated meteorological fields: implication for developing near real-time footprints |
| title_fullStr | Characteristics of STILT footprints driven by KIM model simulated meteorological fields: implication for developing near real-time footprints |
| title_full_unstemmed | Characteristics of STILT footprints driven by KIM model simulated meteorological fields: implication for developing near real-time footprints |
| title_short | Characteristics of STILT footprints driven by KIM model simulated meteorological fields: implication for developing near real-time footprints |
| title_sort | characteristics of stilt footprints driven by kim model simulated meteorological fields implication for developing near real time footprints |
| topic | KIM-STILT Atmospheric CO2 CO2ff WRF-STILT |
| url | https://doi.org/10.1007/s44273-023-00016-7 |
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