Historical Dynamical Downscaling for East Asia with the Atmosphere and Ocean Coupled Regional Model

Ham, Suryun; Yoshimura, Kei; Li, Haiqin

doi:10.2151/jmsj.2015-046

Cited by 15 publications

(6 citation statements)

References 42 publications

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“…The interpolation between atmosphere and ocean model grids is avoided, and a SST‐flux coupler is not necessary. RSM‐ROMS is designed for the practical application of the ocean‐atmosphere coupled downscaling of global reanalysis (Ham et al, ; Li et al, ; Li & Misra, ), climate change projection (Li, Kanamitsu, Hong, Yoshimura, Cayan, & Misra, ; Li, Kanamitsu, Hong, Yoshimura, Cayan, Misra, & Sun, ), and seasonal prediction. Details of the regional coupled modeling system are referred to Li et al ().…”

Section: Description Of Model and Experimentsmentioning

confidence: 99%

“…The RSM‐ROMS has also been applied over the Intra‐American Seas at 15‐km resolution, and it well simulated the loop current and the episodic loop current eddy, while the loop currents and eddy are rather poorly resolved in the Climate Forecast System Reanalysis (Li & Misra, ). It also improves the simulation of costal precipitation, heat flux, and surface air temperature around Japan compared with the uncoupled runs (Ham et al, ).…”

Section: Introductionmentioning

confidence: 99%

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The Simulation of East Asian Summer Monsoon Precipitation With a Regional Ocean‐Atmosphere Coupled Model

Dai

Sun

2018

JGR Atmospheres

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A fully coupled regional ocean-atmosphere model was used to simulate the East Asian summer monsoon (EASM) precipitation. This coupled regional climate modeling system consists of the Regional Spectral Model (RSM) for the atmosphere and the Regional Ocean Modeling System for the ocean. The ocean and atmosphere share the same horizontal grid resolution. The coupled model is forced by the National Centers for Environmental Prediction-Department of Energy (R-2) global atmospheric reanalysis and Simplified Ocean Data Assimilation global oceanic reanalysis through the lateral boundary. This study examines EASM surface oceanic state and precipitation variability from a 22-year (1984-2005) integration with a horizontal resolution of 40 km. The coupled model captures the features of observed sea surface temperature (SST), sea surface height, and ocean surface currents. Compared with the control run of the uncoupled RSM forced with observed SSTs, the coupled model shows more realistic simulation of the EASM precipitation climatology. The coupled model also improves the simulation of precipitation variability at both interannual and intraseasonal scales. It is the coupled model, not the uncoupled RSM, represents the observed SST-precipitation and SST-evaporation relationships. This study indicates that the ocean-atmosphere coupling is essential for model simulations of the EASM precipitation.

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Section: Description Of Model and Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Simulation of East Asian Summer Monsoon Precipitation With a Regional Ocean‐Atmosphere Coupled Model

Dai

Sun

2018

JGR Atmospheres

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“…The model used for this study is the Regional Spectral Model-Regional Ocean Modeling System (RSM-ROMS). RSM-ROMS is a regional, coupled ocean-atmosphere model that has been extensively used for regional climate modeling studies (Li et al 2014;Li and Misra 2014;Ham et al 2016;Misra et al 2018). The atmospheric component of RSM-ROMS is RSM that was first introduced in Juang and Kanamitsu (1994).…”

Section: Model Descriptionmentioning

confidence: 99%

A high resolution coupled ocean-atmosphere simulation of the regional climate over Central America

Misra

Jayasankar

2022

Clim Dyn

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This study analyzes a relatively high resolution (15km grid spacing), regional coupled ocean-atmosphere simulation configured over Central America. The simulation is forced with global atmospheric and oceanic reanalysis for a period of 25 years . The spatial resolution and the time period of the Regional Climate Model (RCM) simulation are both unprecedented for the region. The highlights of the RCM simulation include the verifiable seasonal cycle of mesoscale features like the low level jets, the mid-summer drought and the seasonal tropical cyclone activity both in the Pacific and in the Atlantic Oceans. Similarly, the seasonal cycle of the robust surface ocean currents in the eastern Pacific and the Costa Rica Dome is also well captured in the RCM simulation. The RCM simulation also resolves the seasonal cycle of the Panama-Colombia Gyre, the Gulf of Papagayo and the Gulf of Tehuantepec Gyre. In many instances we find the RCM improves upon the global reanalysis forcing the simulation, indicating the potential value of dynamic downscaling. Furthermore, the co-evolving components of the atmosphere and ocean in the RCM is an added benefit to the atmosphere only and ocean only global reanalysis forcing the simulation. However, the model displays significant biases that manifest in precipitation, precipitable water, SST and winds which could potentially be improved.

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“…The model used for this study is the regional spectral model-regional ocean modeling system (RSM-ROMS). RSM-ROMS has been adopted in several climate studies (e.g., Ham et al, 2016;Li et al, 2014aLi et al, , 2014bMisra and Bhardwaj, 2018). The RSM is the atmospheric component and ROMS is the oceanic component of the regional coupled ocean-atmosphere modeling system.…”

Section: Model Descriptionmentioning

confidence: 99%

Dynamic Downscaling the South Asian Summer Monsoon From a Global Reanalysis Using a Regional Coupled Ocean‐Atmosphere Model

et al. 2022

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The South Asian Summer Monsoon (SASM) is one of the most significant sources of terrestrial convection, which exhibits a robust seasonal cycle and is often construed as a significant part of the atmospheric general circulation. The inter-play between the atmosphere and ocean in the evolution of the SASM is complex. It manifests at the interface of ocean-atmosphere and its influence extends well into the free troposphere and much below the ocean surface (

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Historical Dynamical Downscaling for East Asia with the Atmosphere and Ocean Coupled Regional Model

Cited by 15 publications

References 42 publications

The Simulation of East Asian Summer Monsoon Precipitation With a Regional Ocean‐Atmosphere Coupled Model

The Simulation of East Asian Summer Monsoon Precipitation With a Regional Ocean‐Atmosphere Coupled Model

A high resolution coupled ocean-atmosphere simulation of the regional climate over Central America

Dynamic Downscaling the South Asian Summer Monsoon From a Global Reanalysis Using a Regional Coupled Ocean‐Atmosphere Model

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