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Lee, Myong-In
Climate-Environment Modeling Lab
Research Interests
  • Climate Change, Seasonal Prediction, Extreme Weather, Aerosol

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Inter-annual variation of tropical cyclones simulated by GEOS-5 AGCM with modified convection scheme

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dc.contributor.author Seo, Eunkyo ko
dc.contributor.author Lee, Myong-In ko
dc.contributor.author Kim, Dongmin ko
dc.contributor.author Lim, Young‐Kwon ko
dc.contributor.author Schubert, Siegfried D. ko
dc.contributor.author Kim, Kyu‐Myong ko
dc.date.available 2019-07-11T00:26:43Z -
dc.date.created 2019-04-18 ko
dc.date.issued 2019-08 ko
dc.identifier.citation INTERNATIONAL JOURNAL OF CLIMATOLOGY, v.39, no.10, pp.4041 - 4057 ko
dc.identifier.issn 0899-8418 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/26912 -
dc.description.abstract The Goddard Earth Observing System version 5 (GEOS-5) global climate model with a 50-km horizontal resolution is forced by observed sea surface temperature (SST) to examine the fidelity of the seasonal-mean and inter-annual variation of tropical cyclones (TCs) in the western North Pacific (WNP) and the North Atlantic (NATL). The standard Relaxed Arakawa Schubert (RAS) deep convection scheme is modified to improve the representation of TCs, where the scheme implements a stochastic limit of the cumulus entrainment rate. The modification drives mid- and upper-tropospheric cooling and low- to mid-tropospheric drying in the background state, which tends to increase atmospheric instability. This enables the model to increase convective variability on an intra-seasonal timescale and improve the simulation of intense storms. Five-member ensemble runs with the modified RAS scheme for 12 years (1998–2009) exhibit realistic spatial distributions in the climatological-mean TC development area and their pathways over WNP and NATL. The GCM is able to reproduce the inter-annual variation of accumulated cyclone energy (ACE) by prescribing yearly varying observed SST even though the individual TC intensity is still underpredicted. A sensitivity of TC activity to El Niño–Southern Oscillation (ENSO) phase is also reproduced realistically over WNP in terms of the spatial pattern changes in the main development region and TC pathways. However, the model exhibits a notable deficiency in NATL in reproducing the observed inter-annual variation of TC activity and the sensitivity to the ENSO. ko
dc.language 영어 ko
dc.publisher John Wiley and Sons Ltd ko
dc.title Inter-annual variation of tropical cyclones simulated by GEOS-5 AGCM with modified convection scheme ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85063256184 ko
dc.identifier.wosid 000479031900011 ko
dc.type.rims ART ko
dc.identifier.doi 10.1002/joc.6058 ko
dc.identifier.url https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/joc.6058 ko
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