Scholars@Duke
Nathaniel Chaney

Nathaniel Chaney

Associate Professor of Civil and Environmental Engineering
Civil and Environmental Engineering
nathaniel.chaney@duke.edu
CIEMAS 2463, Durham, NC 27708

Scholarly Works - Preprints

Coupling Subgrid-Scale Surface Heterogeneity to the Convective Boundary Layer in the GFDL Global Model (AM4.0-LM4.0): Parameterization Development and Climate Impacts

Preprint · July 21, 2025 Atmospheric boundary layer (ABL) flows over spatially heterogeneous surfaces give rise to internal boundary layers and secondary circulations that profoundly affect turbulent transport. Such processes occur at subgrid scales (SGS) in climate models ... Full text Cite

How important is land heterogeneity to represent runoff-streamflow relationships across CONUS?

Preprint · March 4, 2025 As Land Surface Models are increasingly applied at higher spatial-temporal resolutions, understanding how land heterogeneity influences the small-scale partitioning of precipitation into runoff is crucial for advancing Earth System Models. In this ... Full text Cite

Scales of Surface Heterogeneity Affecting the Daytime Convective Atmosphere over Land

Preprint · November 13, 2024 Coupled land-atmosphere models exchange grid cell mean values of states and fluxes even as they separately simulate subgrid variability. The characteristics of atmospheric heterogeneity driven by land surface heterogeneity are examined in large edd ... Full text Cite

LM4-SHARC: Catchment-scale Soil-Hillslope Aquifer-River Continuum in  the GFDL Earth System Modeling Framework

Preprint · September 2, 2024 While the catchment-scale stream-hillslope continuum is increasingly understood as a key determinant of land surface water/energy balances, the Earth System Model (ESM) community still lacks a proper hydrologic framework to capture water/energy ... Full text Cite

Examining Parameterizations of Potential Temperature Variance Across Varied Landscapes for use in Earth System Models

Preprint · April 5, 2022 Earth system models (ESMs) and mesoscale models have come to employ increasingly complex parameterization schemes for the atmospheric boundary layer (ABL), requiring surface boundary conditions for numerous higher order turbulence statistics. Of pa ... Full text Cite

Examining Parameterizations of Potential Temperature Variance Across Varied Landscapes for use in Earth System Models

Preprint · December 6, 2021 Earth system models (ESMs) and mesoscale models have come to employ increasingly complex parameterization schemes for the atmospheric boundary layer (ABL), requiring surface boundary conditions for numerous higher order turbulence statistics. Of pa ... Full text Cite