Parameterization of the thermal impacts of sub-grid orography on numerical modeling of the surface energy budget over East Asia

Zhang, Yaocun; Huang, Anning; Zhu, Xian

doi:10.1007/s00704-005-0209-1

Cited by 19 publications

(25 citation statements)

References 13 publications

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“…Using the numerical results, Zhang et al . [] pointed out that the terrain slope and orientation may affect the computation of solar and infrared radiation fluxes at the surface, as well as the surface sensible and latent heat fluxes, and further alter the diurnal cycle and horizontal distributions of surface energy budget components. Our findings suggested that the orientation of terrain slope might also influence the distributions of the precipitation.…”

Section: Discussionmentioning

confidence: 99%

Topographic effects on spatiotemporal variations of short‐duration rainfall events in warm season of central North China

et al. 2014

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Statistical analyses of the hourly station rainfall observation over the recent 8 years show that rainfalls in the warm season (May-October) of the central North China are dominated by short-duration rainfall events (lasting less than or equal to 6 h) and the southeastward delayed diurnal phases of total rainfall revealed by previous studies are mainly contributed by the propagating short-duration rainfall rather than the long-duration rainfall as that along the Yangtze River Valley. The spatiotemporal features of rainfall events are highly correlated with elevation heights. The largest frequency of short-duration rainfall events locates in the southeastern inner periphery of Taihangshan and Yanshan mountains. Rainfall over the northwestern mountains often occurs in the afternoon. Some rainfall events propagate southeastward and influence the rainfall in the southeastern foothills and plain. The rainfall with short-duration time mainly begins around the late evening in the southeastern plain, and even later in coastal regions. The understanding of topographic effects to rainfall events is discussed based on reanalysis and station data. Results indicate that the topography influences the diurnal varied surface or low-level temperature, moisture, and wind fields, which benefit rainfall events occurring in the afternoon over the northwestern mountains first and the southeastward propagation afterward.

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Section: Discussionmentioning

confidence: 99%

Topographic effects on spatiotemporal variations of short‐duration rainfall events in warm season of central North China

et al. 2014

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“…Lee et al (2012) employed the "3-D Monte Carlo" parameterization scheme and found that the 3-D mountain radiation effects result in larger sensible and latent heat transfer between the surface and the atmosphere over the TP. Zhang et al (2006) and Gu et al (2020) employed the sub-grid terrain radiative forcing schemes in the climate models that well represent the spatial distribution of temperature over the eastern part of the TP compared to the observation and alleviate the modeled precipitation biases over China during summer. The altitude, terrain slope, orientation, sky-view factors and other terrain parameters all have effects on the surface radiation fluxes.…”

Section: Summary and Discussionmentioning

confidence: 99%

Diurnal cycle of summer precipitation over the Eastern Tibetan Plateau and surrounding regions simulated in a convection-permitting model

Cai

Huang

Zhu³

et al. 2021

Clim Dyn

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Based on the hourly gauge-satellite merged precipitation data with the spatial resolution of 0.1° × 0.1° during 2013 ~ 2018, we have evaluated the performance of the convection-permitting Weather Research and Forecasting model at Nanjing University (WRF_NJU) in forecasting the precipitation diurnal variation and the associated atmospheric circulation over the eastern Tibetan Plateau and its surrounding regions during summer. Results indicate that WRF_NJU model can well reproduce the diurnal cycle of the summer precipitation in terms of the diurnal peak time, duration and magnitude. In addition, the eastward propagation of rainfall systems with long duration along the eastern Tibetan Plateau (ETP) and its adjacent areas can also be properly captured. The WRF_NJU model can reasonably reproduce the relevant atmospheric circulation during summer as well. However, the model tends to underestimate the summer precipitation amount (PA) and precipitation frequency (PF) over most time of a day. Relatively larger biases in the occurring time and magnitude of PA and PF diurnal peaks can be noted over the ETP and Sichuan Basin. Further analysis suggests that the underestimation of PA over the ETP is attributed to the much lower moisture supply, weaker low-level southwesterly winds and less convective available potential energy (CAPE) in the WRF_NJU model than in ERA5. Over Sichuan Basin, the underestimated PA is related to the weaker upward motion, which is corresponding to the cold biases of surface air temperature in WRF_NJU. Findings of this study provide the basic model biases and may be helpful to further improve the model physical processes.

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“…While, the α and β can be expressed by the gradient of the elevation H (Y. Zhang et al, 2006): = arctg…”

Section: Calculation Of Ssr At Single Point Over Mountainous Areamentioning

confidence: 99%

Influences of 3D Sub‐Grid Terrain Radiative Effect on the Performance of CoLM Over Heihe River Basin, Tibetan Plateau

Zhang

Huang

Dai

et al. 2022

J Adv Model Earth Syst

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Parameterization of the thermal impacts of sub-grid orography on numerical modeling of the surface energy budget over East Asia

Cited by 19 publications

References 13 publications

Topographic effects on spatiotemporal variations of short‐duration rainfall events in warm season of central North China

Topographic effects on spatiotemporal variations of short‐duration rainfall events in warm season of central North China

Diurnal cycle of summer precipitation over the Eastern Tibetan Plateau and surrounding regions simulated in a convection-permitting model

Influences of 3D Sub‐Grid Terrain Radiative Effect on the Performance of CoLM Over Heihe River Basin, Tibetan Plateau

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