Heping Liu

Scalar-Specific Departures from the Constant-Flux-Layer Assumption Organized by Multiscale Turbulence

Heping Liu, Zhiheng Lan, Qianyu Zhang

Code and datasets used for 'Scalar-Specific Departures from the Constant-Flux-Layer Assumption Organized by Multiscale Turbulence'

us (code pays fourni par la source)

Scalar-Specific Departures from the Constant-Flux-Layer Assumption Organized by Multiscale Turbulence

Heping Liu, Zhiheng Lan, Qianyu Zhang

Code and datasets used for 'Scalar-Specific Departures from the Constant-Flux-Layer Assumption Organized by Multiscale Turbulence'

us (code pays fourni par la source)

Vertical Wind‐Pressure Covariance and its Vertical Gradient in Atmospheric Boundary Layers From Large Eddy Simulations

Yanzhao Zhou, Heping Liu, Xin Li

Abstract Atmospheric wind‐pressure covariances (e.g., vertical wind‐pressure covariance, ) affect boundary‐layer energetics and pressure‐related corrections, yet their sign and vertical structure are inconsistently reported. Here, we use a regime‐spanning suite of large‐eddy simulations to quantify how the stability, surface roughness, and wind …

cn, us (code pays fourni par la source)

Regional Hotspots of Lake Evaporation Changes Driven by Surface Energy Balance and Climate Interactions

Umar Farooq, Heping Liu, Qianyu Zhang, Muhammad Muzammil et autres

Abstract Lakes are a critical component of the terrestrial hydrological cycle, yet their sensitivity to future climate warming—especially in terms of evaporation ()—remains insufficiently understood. Here, we use the Lake, Ice, Snow, and Sediment Simulator within the Community Land Model to project …

au, us, de, pk (code pays fourni par la source)

Banked CFC-11 contributes to an unforeseen emission rise and sets back progress towards carbon neutrality

Heping Liu, Huabo Duan, Ning Zhang, Ruichang Mao et autres

An unexpected rise of trichlorofluoromethane (CFC-11) emissions has undermined the efforts behind the Montreal Protocol. However, the sources of these increased emissions, from CFC-11 banks to unreported production, remain contentious. Here, we enhanced the bottom-up dynamic material flow analysis model to characterize …

cn, us, dk (code pays fourni par la source)

Global Lake Evaporation Estimates by Integrating Penman Method with Equilibrium Temperature Approach

Umar Farooq, Heping Liu, Qianyu Zhang, Jingfeng Wang et autres

Abstract Modeling evaporation E from inland water bodies is challenging largely due to the uncertainties of input data, particularly surface water temperature that plays a key role in the available energy, i.e., net radiation R n minus rate of water heat storage …

au, us (code pays fourni par la source)

Network of networks: Time series clustering of AmeriFlux sites

David E. Reed, Housen Chu, B. G. Peter, Jiquan Chen et autres

• Air temperature and net radiation followed a latitude gradient in clustering. • Clustering of fluxes was related to mean annual temperature and precipitation. • Site uniqueness was quantified, and proximal sites pairs were more similar. • Unique sites were in urban, …

us, ca, br (code pays fourni par la source)

Effects of Soil Moisture Heterogeneity on Temperature‐Humidity Dissimilarity in the Convective Boundary Layer

Heping Liu, Jianping Huang, Xiaozhen Fang, Ren‐Guo Zhu et autres

Abstract Surface moisture heterogeneity degrades temperature‐humidity (‐) similarity in the atmospheric surface layer, yet the underlying physical mechanisms driving this dissimilarity remain underexplored. This study employs large‐eddy simulations coupled with a land‐surface model to investigate ‐ similarity in the convective boundary layer …

cn, us (code pays fourni par la source)

Banked CFC-11 contributes to an unforeseen emission rise and sets back progress towards carbon neutrality

Heping Liu, Huabo Duan, Ning Zhang, Ruichang Mao et autres

Abstract. An unexpected rise of trichlorofluoromethane (CFC-11) emissions has undermined the efforts behind the Montreal Protocol. However, the sources of these increased emissions, from CFC-11 banks to unreported production, remain contentious. Here, we enhanced the bottom-up dynamic material flow analysis model to …

cn, us, dk (code pays fourni par la source)

Supplementary material to "Banked CFC-11 contributes to an unforeseen emission rise and sets back progress towards carbon neutrality"

Heping Liu, Huabo Duan, Ning Zhang, Ruichang Mao et autres

cn, de, dk, us (code pays fourni par la source)

Asymptotic coefficients of the attached-eddy model derived from an adiabatic atmosphere

Yue Qin, Gabriel G. Katul, Heping Liu, Dan Li

The attached-eddy model (AEM) predicts that the mean streamwise velocity and streamwise velocity variance profiles follow a logarithmic shape, while the vertical velocity variance remains invariant with height in the overlap region of high Reynolds number wall-bounded turbulent flows. Moreover, the AEM …

us (code pays fourni par la source)

Flux Convergence and Divergence Linked to Asymmetric Transport by Large Turbulent Eddies

Zhongming Gao, Lei Li, Heping Liu, Yang Bai

It is well-established that large eddies significantly influence the turbulent transport of heat and scalars in the atmospheric surface layer. However, the mechanistic understanding of how large eddies originating from both the ground (updrafts) and aloft (downdrafts) regulate flux convergence (FC) and …

cn, us (code pays fourni par la source)