Comparing Convective Self‐Aggregation in Idealized Models to Observed Moist Static Energy Variability Near the Equator
Comparing Convective Self‐Aggregation in Idealized Models to Observed Moist Static Energy Variability Near the Equator
复制标题
比较理想化模型中的对流自聚集与赤道附近观测到的潮湿静态能量变化
DOI:
10.1029/2019gl084130
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发表时间:
2019
影响因子:
5.2
通讯作者:
Pritchard, Michael S.
中科院分区:
文献类型:
--
作者:
Beucler, Tom;Abbott, Tristan H.;Cronin, Timothy W.;Pritchard, Michael S.
Idealized convection‐permitting simulations of radiative‐convective equilibrium have become a popular tool for understanding the physical processes leading to horizontal variability of tropical water vapor and rainfall. However, the applicability of idealized simulations to nature is still unclear given that important processes are typically neglected, such as lateral water vapor advection by extratropical intrusions, or interactive ocean coupling. Here, we exploit spectral analysis to compactly summarize the multiscale processes supporting convective aggregation. By applying this framework to high‐resolution reanalysis data and satellite observations in addition to idealized simulations, we compare convective‐aggregation processes across horizontal scales and data sets. The results affirm the validity of the radiative‐convective equilibrium simulations as an analogy to the real world. Column moist static energy tendencies share similar signs and scale selectivity in convection‐permitting models and observations: Radiation increases variance at wavelengths above 1,000 km, while advection damps variance across wavelengths, and surface fluxes mostly reduce variance between 1,000 and 10,000 km.
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影响因子:
5.2
作者:
D. Coppin;S. Bony
通讯作者:
D. Coppin;S. Bony
影响因子:
3.2
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R. Roca
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4.6
作者:
A. Wing;K. Emanuel;C. Holloway;C. Muller
通讯作者:
C. Muller