Shengpeng Wang

Laoshan Laboratory

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Lixin Wu

Ocean University of China

Zhao Jing

Ocean University of China

Hong Wang

Ocean University of China

Zhaohui Chen

Ocean University of China

Bolan Gan

Ocean University of China

Ping Chang

Johns Hopkins University

Haiyuan Yang

Ocean University of China

Xiaohui Ma

Ocean University of China

Jian Shi

Ocean University of China

Yu Zhang

Ocean University of China

Cooperative Institutions

Ocean University of China

Qingdao National Laboratory for Marine Science and Technology

Laoshan Laboratory

Chinese Academy of Sciences

Texas A&M University

University of Chinese Academy of Sciences

Qingdao Center of Resource Chemistry and New Materials

Institute of Atmospheric Physics

Scripps Institution of Oceanography

Guangzhou Institute of Geochemistry

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Improved Simulation of East Asian Summer Monsoon in the High-resolution CESM1 and Its Causes

Advances in Atmospheric Sciences (2025)

Yongyuan Xiang Lu Dong Fengfei Song Lixin Wu L. Ruby Leung

East Asian Monsoon

10.1007/s00376-024-4229-0

Cite

Citations (0)

The Process‐Oriented Understanding on the Reduced Double‐ITCZ Bias in the High‐Resolution CESM1

Geophysical Research Letters (2025)

Eugene Dong Fengfei Song Lixin Wu Lu Dong Shengpeng Wang

Abstract The double‐Intertropical Convergence Zone (ITCZ) bias is a common model bias, which has puzzled the climate model community for several decades. Here, by comparing a high‐ and low‐resolution state‐of‐the‐art model CESM1, it is found that the double‐ITCZ bias is largely reduced in the high‐resolution CESM1. The key reason is the realistic colder sea surface temperature (SST) over the southeast Pacific (SEP) in the high‐resolution model. This realistic SEP SST is mainly due to a spuriously deeper mixed layer with a more realistic wind, as the sensitivity of mixed layer depth to wind is overestimated in both versions of CESM1. The better representation of terrain, such as Andes Mountains, elevates warm advection from inland to the coastal region, which maintains the inversion structure favorable for low cloud. The resultant increased coastal cloud in the high‐resolution CESM1 causes the colder coastal SST, thus improving the wind and deepening the mixed layer.

Intertropical Convergence Zone

10.1029/2024gl112087

Cite

Citations (0)

Cenozoic mantle plume activity in East Asia: Constraints from geochemistry of olivine, spinel, and melt inclusions

Lithos (2023)

Shengpeng Wang Zhong‐Yuan Ren Alexander R.L. Nichols Tserendash Narantsetseg Qinglin Zhang

Peridotite

Mantle plume

Melt inclusions

10.1016/j.lithos.2023.107292

Cite

Citations (5)

Equatorial Submesoscale Eddies Contribute to the Asymmetry in ENSO Amplitude

Geophysical Research Letters (2023)

Chengcheng Wang Shengpeng Wang Zhao Jing Tao Geng Hong Wang

Abstract El Niño/Southern Oscillation (ENSO) exhibits evident amplitude asymmetry with stronger El Niño than La Niña events. Equatorial submesoscale eddies act as an important damper of ENSO via their induced upward heat flux ( ) from the subsurface to the surface ocean. Yet their effect on ENSO amplitude asymmetry remains unexplored. Using a high‐resolution global climate simulation, we found that strengthening of in the Niño3.4 region during La Niña is more evident than weakening of during El Niño, resulting in stronger damping of La Niña than El Niño events. This asymmetric response of to ENSO is primarily ascribed to that of the temperature fronts associated with larger‐scale processes. Using a recharge oscillator model modified to include the effects of , we show that the asymmetric damping of ENSO by contributes importantly to the ENSO amplitude asymmetry.

Eddy

Oscillation (cell signaling)

10.1029/2022gl101352

Cite

Citations (1)

Mesoscale SST Dynamics in the Kuroshio–Oyashio Extension Region

Journal of Physical Oceanography (2019)

Zhao Jing Ping Chang Xuan Shan Shengpeng Wang Lixin Wu

Abstract Mesoscale eddies have been extensively studied based on the sea surface height anomaly (SSHA). However, it is the sea surface temperature anomaly (SSTA) that is vital to the mesoscale eddy–atmosphere interactions. In this study, we analyze the amplitude relationship between SSHA and SSTA (referred to as the H-T amplitude relationship) in the Kuroshio–Oyashio extension (KOE) region using both observational and reanalysis data. It is found that the spatial distribution of mesoscale SSHA variance is not coincident with mesoscale SSTA variance. The former peaks in the Kuroshio extension around 35°N whereas the latter is strongest in the Oyashio extension around 40°N. Regression analyses indicate that the rate of SSTA change per SSHA change is 1.8°C m −1 in the Kuroshio extension (145°–160°E, 34°–36°N) but increases drastically by a factor of 3–4 to 6.2°C m −1 in the Oyashio extension (145°–160°E, 39°–41°N). A theoretical expression for the H-T amplitude relationship is derived. Analyzing this expression suggests that the stronger H-T amplitude relationship in the Oyashio extension than the Kuroshio extension is mainly attributed to 1) the smaller thermal expansion coefficient due to the colder background SST, 2) the stronger salinity compensation effect that works against the contribution of SSTA change to sea surface density anomaly (SSDA) change, and 3) the shallower vertical structure of mesoscale eddies. The second factor is ascribed to the strong surface salinity front in the Oyashio extension, while the third factor is found to be qualitatively consistent with the shallower baroclinically unstable modes due to the shallower density front there.

Sea-surface height

Anomaly (physics)

Eddy

Temperature salinity diagrams

10.1175/jpo-d-18-0159.1

Cite

Citations (30)

Energy Flux into Near-Inertial Internal Waves Below the Surface Boundary Layer in the Global Ocean

Journal of Physical Oceanography (2021)

Bingrong Sun Shengpeng Wang Man Yuan Hong Wang Zhao Jing

Abstract Near-inertial internal waves (NIWs) are thought to play an important role in powering the turbulent diapycnal mixing in the ocean interior. Nevertheless, the energy flux into NIWs below the surface boundary layer (SBL) in the global ocean is still poorly understood. This key problem is addressed in this study based on a Community Earth System Model (CESM) simulation with a horizontal resolution of ~0.1° for its oceanic component and ~0.25° for its atmospheric component. The CESM shows good skill in simulating NIWs globally, reproducing the observed magnitude and spatial pattern of surface NIW currents and wind power on NIWs ( W I ). The simulated downward flux of NIW energy ( F SBL ) at the SBL base is positive everywhere. Its quasi-global integral (excluding the region within 5°S-5°N) is 0.13 TW, about one-third the value of W I . The ratio of local F SBL to W I varies substantially over the space. It exhibits an increasing trend with the enstrophy of balanced motions (BMs) and a decreasing trend with W I . The kinetic energy transfer from model-resolved BMs to NIWs is positive from the SBL base to 600 m but becomes negative further downwards. The quasi-global integral of energy transfer below the SBL base is two orders of magnitude smaller than that of F SBL , suggesting the resolved BMs in the CESM simulations making negligible contributions to power NIWs in the ocean interior.

Inertial wave

Mixed layer

Boundary current

Enstrophy

10.1175/jpo-d-20-0276.1

Cite

Citations (7)

Greenhouse Warming Weakens the Seasonal Cycle of the Eastern Boundary Upwelling

Geophysical Research Letters (2023)

Tianshi Du Shengpeng Wang Zhao Jing Hong Wang Lixin Wu

Abstract The response of upwelling in the eastern boundary upwelling systems (EBUSs) to anthropogenic climate change has attracted much scientific attention due to its core role in nourishing marine ecosystems. A decade‐old hypothesis suggests that greenhouse warming may intensify upwelling‐favorable winds and subsequently the upwelling in EBUSs, but the impact of greenhouse warming on the seasonal cycle of upwelling remains unknown. Using the recent generation of global climate simulations under a high carbon emission scenario, we show a universal weakening of the upwelling seasonal cycle in the major EBUSs. This is mainly ascribed to the projected weakened seasonal cycle of the upwelling‐favorable winds. In addition, long‐term changes in geostrophic transport exert a nonnegligible contribution to the changes in the upwelling seasonal cycle. Our study suggests that the upwelling in the EBUSs is likely to have a more complicated response to greenhouse warming than previously thought.

Greenhouse effect

Annual cycle

10.1029/2023gl103857

Cite

Citations (3)

Geostrophic flows control future changes of oceanic eastern boundary upwelling

Nature Climate Change (2023)

Zhao Jing Shengpeng Wang Lixin Wu Hong Wang Shenghui Zhou

Abstract Equatorward alongshore winds over major eastern boundary upwelling systems (EBUSs) drive intense upwelling via Ekman dynamics, surfacing nutrient-rich deep waters and promoting marine primary production and fisheries. It is generally thought, dating back to Bakun’s hypothesis, that greenhouse warming should enhance upwelling in EBUSs by intensifying upwelling-favourable winds; yet this has not been tested. Here, using an ensemble of high-resolution climate simulations with improved EBUS representation, we show that long-term upwelling changes in EBUSs differ substantially, under a high-emission scenario, from those inferred by the wind-based upwelling index. Specifically, weakened or unchanged upwelling can coincide with intensified upwelling-favourable winds. These differences are linked to long-term changes of geostrophic flows that dominate upwelling changes in the Canary and Benguela currents and strongly offset wind-driven changes in the California and Humboldt currents. Our results highlight the controlling role of geostrophic flows in upwelling trends in EBUSs under greenhouse warming, which Bakun’s hypothesis overlooked.

10.1038/s41558-022-01588-y

Cite

Citations (14)

Will Increasing Climate Model Resolution Be Beneficial for ENSO Simulation?

Geophysical Research Letters (2022)

Bowen Liu Bolan Gan Wenju Cai Lixin Wu Tao Geng

Abstract Increasing climate model resolution offers multifaceted benefits, such as improving modeled tropical cyclones. However, the extent to which it benefits El Niño‐Southern Oscillation (ENSO) simulation remains unknown. Here, comprehensive information on the sensitivity of ENSO performance to various resolutions is provided, based on a multi‐model and multi‐resolution ensemble of global coupled models. Overall, the reduced model biases of the equatorial sea surface temperature (SST) and precipitation mean state in higher‐resolution models may be attributed to increased oceanic resolution, and thus, better resolved eddy‐driven heat transport. ENSO spatial patterns were reproduced clearer in the eddy‐present models, likely due to the improved mean state and associated surface thermodynamic feedback. However, increasing atmospheric resolution alone deteriorates ENSO asymmetry, which may be due to the degradation of nonlinear atmospheric feedback. It remains challenging to alleviate the SST−shortwave‐flux feedback bias, which is a major source of too‐weak net heat flux feedback, irrespective of model resolution.

Atmospheric models

Shortwave radiation

Shortwave

Positive feedback

10.1029/2021gl096932

Cite

Citations (18)

Decadal Variability of Eddy Characteristics and Energetics in the Kuroshio Extension: Unstable Versus Stable States

Journal of Geophysical Research Oceans (2018)

Haiyuan Yang Bo Qiu Ping Chang Lixin Wu Shengpeng Wang

Abstract Using the Estimating Circulation and Climate of the Ocean Phase II product, this study investigates the eddy characteristics and energetics in two dynamical regimes within the Kuroshio Extension (KE) region. Based on the empirical orthogonal function analysis, it is found that the decadal evolution of eddy kinetic energy in the KE region is characterized by a delayed negative correlation between the upstream and downstream. Besides the out‐of‐phase change in eddy activity levels, eddy characteristics and energetics in the upstream KE are also different from those in the downstream. In the upstream region, eddies are stretched in the zonal direction and the unstable state is characterized by strong eddy‐shedding processes. During these processes, cyclonic eddies are found to be formed in the first quasi‐stationary meander and finally pinched off from the KE jet. Energy budget illustrates that the eddy shedding processes are triggered by baroclinic instability, while barotropic instability becomes the dominated energy source after the meander is fully developed. Accompanied by the generation of cyclonic eddies, significant inverse energy cascade is detected. When the upstream KE is stable, the eddy activity is dominated by baroclinic instability and the inverse energy cascade occurs similarly. Distinct from the upstream, eddies in the downstream KE tend to be stretched in the meridional direction and the decadal variability of eddy kinetic energy in this region is mainly regulated by the upstream through lateral advection.

Eddy

Energetics

Energy cascade

Meander (mathematics)

Barotropic fluid

Eddy diffusion

10.1029/2018jc014081

Cite

Citations (30)