Intercomparing varied erosion, deposition and transport process representations for simulating sediment yield

Abstract Over the past several decades there has been an enormous proliferation of sediment models, ranging from empirical to physically-based. Most of these models aim to capture the impacts of three primary sediment processes viz. erosion, deposition, and transport. As a range of process represent...

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Autores principales:	Tan Zi, Mukesh Kumar, John Albertson
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/235d2c0cafb6498fb4c0d8f741de262a
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spelling	oai:doaj.org-article:235d2c0cafb6498fb4c0d8f741de262a2021-12-02T15:09:39ZIntercomparing varied erosion, deposition and transport process representations for simulating sediment yield10.1038/s41598-019-48405-92045-2322https://doaj.org/article/235d2c0cafb6498fb4c0d8f741de262a2019-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-48405-9https://doaj.org/toc/2045-2322Abstract Over the past several decades there has been an enormous proliferation of sediment models, ranging from empirical to physically-based. Most of these models aim to capture the impacts of three primary sediment processes viz. erosion, deposition, and transport. As a range of process representations exist for simulating these three processes, it is natural to wonder about their influence on estimates of suspended sediment yield from a watershed. While several studies have focused on intercomparison of sediment models, their scopes have generally been restricted to comparing the individual model performances, rather than understanding the role of process representations on sediment model output. Here, six model configurations, which span the different permutations of erosion, deposition and transport process representations being used in extant models, are considered to evaluate the role of process representations on sediment yield estimates. The numerical experiments are designed to evaluate the extent to which the sediment dynamics as modeled by a physically-based model with coupled surface-subsurface hydrologic interactions are captured by simpler models. The presented work delineates the applicability and limitations of widely used representations of sediment processes, and could help users identify the pros and cons of using a sediment model at a given temporal scale.Tan ZiMukesh KumarJohn AlbertsonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-13 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tan Zi Mukesh Kumar John Albertson Intercomparing varied erosion, deposition and transport process representations for simulating sediment yield
description	Abstract Over the past several decades there has been an enormous proliferation of sediment models, ranging from empirical to physically-based. Most of these models aim to capture the impacts of three primary sediment processes viz. erosion, deposition, and transport. As a range of process representations exist for simulating these three processes, it is natural to wonder about their influence on estimates of suspended sediment yield from a watershed. While several studies have focused on intercomparison of sediment models, their scopes have generally been restricted to comparing the individual model performances, rather than understanding the role of process representations on sediment model output. Here, six model configurations, which span the different permutations of erosion, deposition and transport process representations being used in extant models, are considered to evaluate the role of process representations on sediment yield estimates. The numerical experiments are designed to evaluate the extent to which the sediment dynamics as modeled by a physically-based model with coupled surface-subsurface hydrologic interactions are captured by simpler models. The presented work delineates the applicability and limitations of widely used representations of sediment processes, and could help users identify the pros and cons of using a sediment model at a given temporal scale.
format	article
author	Tan Zi Mukesh Kumar John Albertson
author_facet	Tan Zi Mukesh Kumar John Albertson
author_sort	Tan Zi
title	Intercomparing varied erosion, deposition and transport process representations for simulating sediment yield
title_short	Intercomparing varied erosion, deposition and transport process representations for simulating sediment yield
title_full	Intercomparing varied erosion, deposition and transport process representations for simulating sediment yield
title_fullStr	Intercomparing varied erosion, deposition and transport process representations for simulating sediment yield
title_full_unstemmed	Intercomparing varied erosion, deposition and transport process representations for simulating sediment yield
title_sort	intercomparing varied erosion, deposition and transport process representations for simulating sediment yield
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/235d2c0cafb6498fb4c0d8f741de262a
work_keys_str_mv	AT tanzi intercomparingvariederosiondepositionandtransportprocessrepresentationsforsimulatingsedimentyield AT mukeshkumar intercomparingvariederosiondepositionandtransportprocessrepresentationsforsimulatingsedimentyield AT johnalbertson intercomparingvariederosiondepositionandtransportprocessrepresentationsforsimulatingsedimentyield
_version_	1718387800228757504

Intercomparing varied erosion, deposition and transport process representations for simulating sediment yield

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