Major modes of short-term climate variability in the newly developed NUIST Earth System Model (NESM)

Cao, Jian; Wang, Bin; Xiang, Baoqiang; Li, Juan; Wu, Tianjie; Fu, Xiouhua; Wu, Liguang; Min, Jinzhong

doi:10.1007/s00376-014-4200-6

Cited by 23 publications

(22 citation statements)

References 62 publications

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“…A time series of the maximum strength of the AMOC at 26.5 • N is evaluated. The mean strength of the AMOC is 14.8 sv, which is underestimated compared to the modern observational value of 18.5 sv (Cunningham et al, 2007). The AMOC strength has a small linear trend and significant multidecadal variability.…”

Section: Model Stability Under Fixed External Forcingmentioning

confidence: 60%

“…The coupling method is the same as the previous version, NESM v1, and detailed information is described in Cao et al (2015). But the coupler has been upgraded from OASIS3-MCT to OASIS3-MCT_3.0 (Valcke and Coquart, 2015), which is a fully parallelized tool for a coupled model.…”

Section: Coupling Methods With Oasis3-mctmentioning

confidence: 99%

“…The first generation of the Nanjing University Information Science and Technology (NUIST) Earth System Model (NESM v1;Cao et al, 2015) was established with the atmospheric model ECHAM v5.3, ocean model NEMO v3.4, sea ice model CICE v4.1, and coupler version 3 of the Ocean-Atmosphere-Sea-Ice-Soil Model Coupling Toolkit (OASIS3.0-MCT). It was targeted to meet the demand of seamless climate prediction, simulate the past and project future climate change, and study climate variability in high-impact weather events.…”

Section: Introductionmentioning

confidence: 99%

“…It was targeted to meet the demand of seamless climate prediction, simulate the past and project future climate change, and study climate variability in high-impact weather events. The performances of NESM v1 have been evaluated (Cao et al, 2015) and further developed into a seasonal prediction system (NESM v2) by modification and tuning of convective parameterization and cloud microphysics. The NESM v1 was also used to study the changes in Last Glacial Maximum climate and the global monsoon, demonstrating reasonable model response with external forcing (Cao and Wu, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…However, the previous model versions have no vegetation dynamics in the land surface model and cannot be used to study the carbon cycle (Cao et al, 2015); the response of the coupled system to carbon dioxide forcing was also oversensitive. Meanwhile, the poorly resolved vertical layers prevented correct simulation of stratosphere phenomena and the high-level jet stream.…”

Section: Introductionmentioning

confidence: 99%

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The NUIST Earth System Model (NESM) version 3: description and preliminary evaluation

et al. 2018

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Abstract. The Nanjing University of Information Science and Technology Earth System Model version 3 (NESM v3) has been developed, aiming to provide a numerical modeling platform for cross-disciplinary Earth system studies, project future Earth climate and environment changes, and conduct subseasonal-to-seasonal prediction. While the previous model version NESM v1 simulates the internal modes of climate variability well, it has no vegetation dynamics and suffers considerable radiative energy imbalance at the top of the atmosphere and surface, resulting in large biases in the global mean surface air temperature, which limits its utility to simulate past and project future climate changes. The NESM v3 has upgraded atmospheric and land surface model components and improved physical parameterization and conservation of coupling variables. Here we describe the new version's basic features and how the major improvements were made. We demonstrate the v3 model's fidelity and suitability to address global climate variability and change issues. The 500-year preindustrial (PI) experiment shows negligible trends in the net heat flux at the top of atmosphere and the Earth surface. Consistently, the simulated global mean surface air temperature, land surface temperature, and sea surface temperature (SST) are all in a quasi-equilibrium state. The conservation of global water is demonstrated by the stable evolution of the global mean precipitation, sea surface salinity (SSS), and sea water salinity. The sea ice extents (SIEs), as a major indication of high-latitude climate, also maintain a balanced state. The simulated spatial patterns of the energy states, SST, precipitation, and SSS fields are realistic, but the model suffers from a cold bias in the North Atlantic, a warm bias in the Southern Ocean, and associated deficient Antarctic sea ice area, as well as a delicate sign of the double ITCZ syndrome. The estimated radiative forcing of quadrupling carbon dioxide is about 7.24 W m−2, yielding a climate sensitivity feedback parameter of −0.98 W m−2 K−1, and the equilibrium climate sensitivity is 3.69 K. The transient climate response from the 1 % yr−1 CO2 (1pctCO2) increase experiment is 2.16 K. The model's performance on internal modes and responses to external forcing during the historical period will be documented in an accompanying paper.

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Section: Model Stability Under Fixed External Forcingmentioning

confidence: 60%

Section: Coupling Methods With Oasis3-mctmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The NUIST Earth System Model (NESM) version 3: description and preliminary evaluation

et al. 2018

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NUIST ESM v3 Data Submission to CMIP6

Cao

Liu

et al. 2021

Adv. Atmos. Sci.

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This paper introduces the experimental designs and outputs of the Diagnostic, Evaluation and Characterization of Klima (DECK), historical, Scenario Model Intercomparison Project (MIP), and Paleoclimate MIP (PMIP) experiments from the Nanjing University of Information Science and Technology Earth System Model version 3 (NESM3). Results show that NESM3 reasonably simulates the modern climate and the major internal modes of climate variability. In the Scenario MIP experiment, changes in the projected surface air temperature (SAT) show robust “Northern Hemisphere (NH) warmer than Southern Hemisphere (SH)” and “land warmer than ocean” patterns, as well as an El Niño-like warming over the tropical Pacific. Changes in the projected precipitation exhibit “NH wetter than SH” and “eastern hemisphere gets wetter and western hemisphere gets drier” patterns over the tropics. These precipitation patterns are driven by circulation changes owing to the inhomogeneous warming patterns. Two PMIP experiments show enlarged seasonal cycles of SAT and precipitation over the NH due to the seasonal redistribution of solar radiation. Changes in the climatological mean SAT, precipitation, and ENSO amplitudes are consistent with the results from PMIP4 models. The NESM3 outputs are available on the Earth System Grid Federation nodes for data users.

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Retrospective seasonal prediction of summer monsoon rainfall over West Central and Peninsular India in the past 142 years

Wang

Yang

2016

Clim Dyn

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Major modes of short-term climate variability in the newly developed NUIST Earth System Model (NESM)

Cited by 23 publications

References 62 publications

The NUIST Earth System Model (NESM) version 3: description and preliminary evaluation

The NUIST Earth System Model (NESM) version 3: description and preliminary evaluation

NUIST ESM v3 Data Submission to CMIP6

Retrospective seasonal prediction of summer monsoon rainfall over West Central and Peninsular India in the past 142 years

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