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Global Coupled (GC) 모델 개선에 따른 동아시아 여름 몬순 모의성능 평가

Assessment on the East Asian Summer Monsoon Simulation by Improved Global Coupled (GC) Model

신범철|현유경|이조한|김지영
한국기상학회 (Korean Meteorological Society)|2021.12|대기 (Atmosphere)|제31권 제5호|pp. 563-576|DOI 10.14191/Atmos.2021.31.5.563

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참고문헌

키워드

GloSea5East Asian summer monsoonGlobal coupled modelhindcast
주제분류대기과학

초록

The performance of East Asian summer monsoon is assessed for GC2 and GC3.1, which are climate change models of the current and next climate prediction system in the Korea Meteorological Administration (KMA), GloSea5 and GloSea6. The most pronounced characteristics of GC models are strong monsoon trough and the weakening of the Western North Pacific Subtropical High (WNPSH). These are related to the weakening of the southwesterly wind and resulting weak monsoon band toward the Korean Peninsula. The GC3.1 is known to have improved the model configuration version compared to GC2, such as cloud physics and ocean parameters. We can confirm that the overall improvements of GC3.1 against GC2, especially in pressure, 850 hPa wind fields, and vertical wind shear. Also, the precipitation band stagnant in the south of 30°N in late spring is improved, therefore the biases of rainy onset and withdrawal on the Korean Peninsula are reduced by 2~4 pentad. We also investigate the impact of initialization in comparison with GloSea5 hindcast. Compared with GCs, hindcast results show better simulation within 1 month lead time, especially in pressure and 850 hPa wind fields, which can be expected to the improvement of WNPSH. Therefore, it is expected that the simulation performance of WNPSH will be improved in the result of applying the initialization of GloSea6.

Abstract

The performance of East Asian summer monsoon is assessed for GC2 and GC3.1, which are climate change models of the current and next climate prediction system in the Korea Meteorological Administration (KMA), GloSea5 and GloSea6. The most pronounced characteristics of GC models are strong monsoon trough and the weakening of the Western North Pacific Subtropical High (WNPSH). These are related to the weakening of the southwesterly wind and resulting weak monsoon band toward the Korean Peninsula. The GC3.1 is known to have improved the model configuration version compared to GC2, such as cloud physics and ocean parameters. We can confirm that the overall improvements of GC3.1 against GC2, especially in pressure, 850 hPa wind fields, and vertical wind shear. Also, the precipitation band stagnant in the south of 30°N in late spring is improved, therefore the biases of rainy onset and withdrawal on the Korean Peninsula are reduced by 2~4 pentad. We also investigate the impact of initialization in comparison with GloSea5 hindcast. Compared with GCs, hindcast results show better simulation within 1 month lead time, especially in pressure and 850 hPa wind fields, which can be expected to the improvement of WNPSH. Therefore, it is expected that the simulation performance of WNPSH will be improved in the result of applying the initialization of GloSea6.

참고문헌 (41)

  1. Andrews, T., "Forcings, feedbacks, and climate sensitivity in HadGEM3-GC3.1 and UKESM1", J. Adv. Model. Earth Sy, 11, pp.4377~4394 (2019)[DOI]
  2. Boo, K. -O., "Evaluating the East Asian monsoon simulation in climate models", J. Geophys. Res. Atmos, 116, pp.D01109~ (2011)[DOI]
  3. Boutle, I. A., "Spatial variability of liquid cloud and rain : observations and microphysical effects", Q. J. R. Meteorol. Soc, 140, pp.583~594 (2014)[DOI]
  4. Chang, C. -P., "Tropical circulations associated with southwest monsoon onset and westerly surges over the South China Sea", Mon. Wea. Rev, 123, pp.3254~3267 (1995)
  5. Chen, J., "Simulation and dynamical prediction of the summer Asian-Pacific Oscillation and associated climate anomalies by the NCEP CFSv2", J. Climate, 26, pp.3644~3656 (2013)[DOI]
  6. Cheng, T. F., "The zonal oscillation and the driving mechanisms of the extreme western North Pacific subtropical high and its impacts on East Asian summer precipitation", J. Climate, 32, pp.3025~3050 (2019)[DOI]
  7. Flocco, D., "Incorporation of a physically based melt pond scheme into the sea ice component of a climate model", J. Geophys. Res. Oceans, 115, pp.C08012~ (2010)[DOI]
  8. Guo, Q. -Y., "The summer monsoon intensity index in East Asia and its variation", Acta Geogr. Sin, 38, pp.208~217 (1983)[DOI]
  9. Ha, K. -J., "Linkages between the South and East Asian summer monsoons : a review and revisit", Climate Dyn, 51, pp.4207~4227 (2018)[DOI]
  10. Han, J., "Interdecadal variability of the East Asian summer monsoon in an AGCM", Adv. Atmos. Sci, 24, pp.808~818 (2007)
  11. Hong, S. -Y., "Comparison of heavy rainfall mechanisms in Korea and the central US", J. Meteor. Soc. Japan Ser. II, 82, pp.1469~1479 (2004)
  12. Kang, I. -S., "Intercomparison of the climatological variations of Asian summer monsoon precipitation simulated by 10 GCMs", Climate Dyn, 19, pp.383~395 (2002)
  13. 김혜리, "기상청 기후예측시스템(GloSea6) - Part 1: 운영 체계 및 개선 사항", 대기, 31(3), pp.341~359 (2021), 한국기상학회[DOI]
  14. Kwon, M., "Decadal change in relationship between east Asian and WNP summer monsoons", Geophys. Res. Lett, 32, pp.L16709~ (2005)
  15. 권상훈, "CMIP5 모델에 나타난 동아시아 여름몬순의 모의 성능평가와 미래변화", 대기, 27(2), pp.133~150 (2017), 한국기상학회[DOI]
  16. Lau, K. -M., "Dynamical and boundary forcing characteristics of regional components of the Asian summer monsoon", J. Climate, 13, pp.2461~2482 (2000)
  17. 이소정, "기상청 기후예측시스템(GloSea5)의 여름철 동아시아 몬순 지수 예측 성능 평가", 대기, 30(3), pp.293~309 (2020), 한국기상학회[DOI]
  18. Li, H., "Responses of East Asian summer monsoon to historical SST and atmospheric forcing during 1950~2000", Climate Dyn, 34, pp.501~514 (2010)[DOI]
  19. Liu, Y., "Dispersion bias, dispersion effect, and the aerosol-cloud conundrum", Environ. Res. Lett, 3, pp.045021~ (2008)
  20. Megann, A., "GO5.0: the joint NERC-Met Office NEMO global ocean model for use in coupled and forced applications", Geosci. Model Dev, 7, pp.1069~1092 (2014)[DOI]
  21. Rae, J. G. L., "Development of the Global Sea Ice 6.0 CICE configuration for the Met Office Global Coupled model", Geosci. Model Dev, 8, pp.2221~2230 (2015)[DOI]
  22. Ridley, J. K., "The sea ice model component of HadGEM3-GC3.1", Geosci. Model Dev, 11, pp.713~723 (2018)[DOI]
  23. Rodríguez, J. M., "The East Asian atmospheric water cycle and monsoon circulation in the Met Office Unified Model", J. Geophys. Res. Atmos, 122, pp.10246~10265 (2017)
  24. Seo, K. -H., "Northern East Asian monsoon precipitation revealed by airmass variability and its prediction", J. Climate, 28, pp.6221~6233 (2015)[DOI]
  25. Shonk, J. K. P., "Uncertainty in aerosol radiative forcing impacts the simulated global monsoon in the 20th century", Atmos. Chem. Phys, 20, pp.14903~14915 (2020)[DOI]
  26. Stephan, C. C., "Intraseasonal summer rainfall variability over China in the MetUM GA6 and GC2 configurations", Geosci. Model Dev, 11, pp.3215~3233 (2018)[DOI]
  27. Storkey, D., "UK Global Ocean GO6and GO7 : a traceable hierarchy of model resolutions", Geosci. Model Dev, 11, pp.3187~3213 (2018)[DOI]
  28. Sui, C. -H., "Interannual and interdecadal variability of the summertime western North Pacific subtropical high", Geophys. Res. Lett, 34, pp.L11701~ (2007)
  29. Walters, D., "The Met Office Unified Model Global Atmosphere 6.0", 6.1 and JULES Global Land 6.0, Geosci. Model Dev, pp.2017, 10[DOI]
  30. Walters, D., "The Met Office Unified Model Global Atmosphere 7.0", 7.1 and JULES Global Land 7.0 configurations, 2019, pp.12, 1909~1963
  31. Wang, B., "Choice of South Asian summer monsoon indices", Bull. Amer. Meteor. Soc, 80, pp.629~638 (1999)
  32. Wang, B., "Rainy season of the Asian-Pacific summer monsoon", J. Climate, 15, pp.386~398 (2002)
  33. Wang, B., "How to measure the strength of the East Asian summer monsoon", J. Climate, 21, pp.4449~4463 (2008)
  34. Wang, S., "Effect of the East Asian westerly jet’s intensity on summer rainfall in the Yangtze River valley and its mechanism", J. Climate, 29, pp.2395~2406 (2016)[DOI]
  35. Wang, Y., "Impact of the preceding El Niño on the East Asian summer atmosphere circulation", J. Meteor. Soc. Japan Ser. II, 79, pp.575~588 (2001)
  36. Williams, K. D., "The Met Office Global Coupled Model 3.0 and 3.1 (GC3.0 and GC3.1) configurations", J. Adv. Model. Earth Sy, 10, pp.357~380 (2018)[DOI]
  37. Xin, X., "Impact of higher resolution on precipitation over China in CMIP6 HighResMIP models", Atmosphere, 12, pp.762~ (2021)[DOI]
  38. Yihui, D., "The East Asian summer monsoon : an overview", Meteorol. Atmos. Phys, 89, pp.117~142 (2005)
  39. Yun, K. -S., "Recent intensification of the South and East Asian monsoon contrast associated with an increase in the zonal tropical SST gradient", J. Geophys. Res. Atmos, 119, pp.8104~8116 (2014)[DOI]
  40. Zhou, T., "Simulation of the east asian summer monsoon using a variable resolution atmospheric GCM", Climate Dyn, 19, pp.167~180 (2002)
  41. Zhou, T., "Detecting and understanding the multi-decadal variability of the East Asian summer monsoon recent progress and state of affairs", Meteorol. Z, pp.455~467 (2009)

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