| Autor: |
Gu, Chunlei, Huang, Anning, Li, Xin, Wu, Yang |
| Předmět: |
|
| Zdroj: |
Geophysical Research Letters; 5/28/2024, Vol. 51 Issue 10, p1-14, 14p |
| Abstrakt: |
The surface solar irradiance (SSI) is crucial for the land‐atmosphere processes and remarkably affected by the topography over the rugged areas. However, the Coupled Model Intercomparison Project Phase 6 (CMIP6) HighResMIP models adopting the parallel‐plane radiative scheme without considering the sub‐grid terrain solar radiative effects (3DSTSRE) overestimate the SSI in the rugged areas and the overestimation increases with the sub‐grid terrain complexity. To reduce the biases of the SSI simulations, this study offline corrects the SSI simulations of CMIP6 HighResMIP models by a 3DSTSRE scheme. Results show that the SSI biases produced by the HighResMIP models in the rugged regions can be significantly reduced by adopting the 3DSTSRE offline correction, and the improvements increase with the sub‐grid terrain complexity, indicating that considering the 3DSTSRE in the climate models to improve the SSI simulations over rugged areas is necessary. Plain Language Summary: The surface incident solar radiation greatly affected by terrains plays important roles in various processes between the land and atmosphere. However, the Coupled Model Intercomparison Project Phase 6 (CMIP6) HighResMIP models without considering the 3D sub‐grid terrain solar radiative effect (3DSTSRE) largely overestimate the surface incident solar radiation over the rugged areas. In this study, adopting a 3DSTSRE scheme to offline correct the surface incident solar radiation simulations from the CMIP6 HighResMIP models can clearly reduce the biases over the rugged areas, and the improvements increase with the sub‐grid terrain complexity, implying that the 3DSTSRE should be considered in the climate models to improve the surface incident solar radiation simulation over the rugged areas. Key Points: The biases of surface solar irradiance (SSI) simulated by the CMIP6 HighResMIP models increase with the sub‐grid terrain complexityThe biases of simulated SSI over rugged areas can be clearly reduced by the 3DSTSRE offline correctionThe 3DSTSRE should be considered in the climate models to improve the SSI simulation over rugged areas [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Plný text