Preliminary evaluation of MJO simulation in GAMIL3 (Grid-point atmospheric model of IAP LASG)

Ye PU; Lijuan LI; Hongbo LIU; Li DONG; Bin WANG

doi:10.1080/16742834.2020.1769451

Preliminary evaluation of MJO simulation in GAMIL3 (Grid-point atmospheric model of IAP LASG)

Ye PU
, Lijuan LI
, Hongbo LIU
, Li DONG
, Bin WANG

Computational Earth Sciences Group

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

This study evaluates the performance of the Grid-point Atmospheric Model of IAP LASG, version 3 (GAMIL3), in simulating the Madden–Julian Oscillation (MJO), based on the CMIP6 (phase 6 of the Coupled Model Intercomparison Project) AMIP (Atmospheric Model Intercomparison Project) simulation. Results show that GAMIL3 reasonably captures the main features of the MJO, such as the eastward-propagating signal in the MJO frequency band, the symmetric and asymmetric structures of the MJO, several convectively coupled equatorial waves, and the MJO life cycle. However, GAMIL3 underestimates the MJO amplitude, especially for outgoing longwave radiation, as do most CMIP5 models, and simulates slow eastward propagation.

Original language	English
Pages (from-to)	542-549
Number of pages	8
Journal	Atmospheric and Oceanic Science Letters
DOIs	https://doi.org/10.1080/16742834.2020.1769451
State	Published - 2020

Funding

This study was jointly supported by the National Key Research and Development Program of China [grant number 2017YFA0603903] and the National Natural Science Foundation of China [grant numbers 41622503 and 41775101].

Keywords

evaluation
GAMIL3
MJO

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10.1080/16742834.2020.1769451

Cite this

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title = "Preliminary evaluation of MJO simulation in GAMIL3 (Grid-point atmospheric model of IAP LASG)",

abstract = "This study evaluates the performance of the Grid-point Atmospheric Model of IAP LASG, version 3 (GAMIL3), in simulating the Madden–Julian Oscillation (MJO), based on the CMIP6 (phase 6 of the Coupled Model Intercomparison Project) AMIP (Atmospheric Model Intercomparison Project) simulation. Results show that GAMIL3 reasonably captures the main features of the MJO, such as the eastward-propagating signal in the MJO frequency band, the symmetric and asymmetric structures of the MJO, several convectively coupled equatorial waves, and the MJO life cycle. However, GAMIL3 underestimates the MJO amplitude, especially for outgoing longwave radiation, as do most CMIP5 models, and simulates slow eastward propagation.",

keywords = "evaluation, GAMIL3, MJO",

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year = "2020",

doi = "10.1080/16742834.2020.1769451",

language = "English",

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journal = "Atmospheric and Oceanic Science Letters",

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AU - PU, Ye

AU - LI, Lijuan

AU - LIU, Hongbo

AU - DONG, Li

AU - WANG, Bin

PY - 2020

Y1 - 2020

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AB - This study evaluates the performance of the Grid-point Atmospheric Model of IAP LASG, version 3 (GAMIL3), in simulating the Madden–Julian Oscillation (MJO), based on the CMIP6 (phase 6 of the Coupled Model Intercomparison Project) AMIP (Atmospheric Model Intercomparison Project) simulation. Results show that GAMIL3 reasonably captures the main features of the MJO, such as the eastward-propagating signal in the MJO frequency band, the symmetric and asymmetric structures of the MJO, several convectively coupled equatorial waves, and the MJO life cycle. However, GAMIL3 underestimates the MJO amplitude, especially for outgoing longwave radiation, as do most CMIP5 models, and simulates slow eastward propagation.

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DO - 10.1080/16742834.2020.1769451

M3 - Article

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SN - 1674-2834

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JO - Atmospheric and Oceanic Science Letters

JF - Atmospheric and Oceanic Science Letters

ER -

Preliminary evaluation of MJO simulation in GAMIL3 (Grid-point atmospheric model of IAP LASG)

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Keywords

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