Hierarchical climate-driven dynamics of the active channel length in temporary streams

Abstract Looking across a landscape, river networks appear deceptively static. However, flowing streams expand and contract following ever-changing hydrological conditions of the surrounding environment. Despite the ecological and biogeochemical value of rivers with discontinuous flow, deciphering t...

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Autores principales: Gianluca Botter, Filippo Vingiani, Alfonso Senatore, Carrie Jensen, Markus Weiler, Kevin McGuire, Giuseppe Mendicino, Nicola Durighetto
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/f08ebf4a0a44495cb2e73b492f445387
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spelling oai:doaj.org-article:f08ebf4a0a44495cb2e73b492f4453872021-11-08T10:53:13ZHierarchical climate-driven dynamics of the active channel length in temporary streams10.1038/s41598-021-00922-22045-2322https://doaj.org/article/f08ebf4a0a44495cb2e73b492f4453872021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-00922-2https://doaj.org/toc/2045-2322Abstract Looking across a landscape, river networks appear deceptively static. However, flowing streams expand and contract following ever-changing hydrological conditions of the surrounding environment. Despite the ecological and biogeochemical value of rivers with discontinuous flow, deciphering the temporary nature of streams and quantifying their extent remains challenging. Using a unique observational dataset spanning diverse geomorphoclimatic settings, we demonstrate the existence of a general hierarchical structuring of river network dynamics. Specifically, temporary stream activation follows a fixed and repeatable sequence, in which the least persistent sections activate only when the most persistent ones are already flowing. This hierarchical phenomenon not only facilitates monitoring activities, but enables the development of a general mathematical framework that elucidates how climate drives temporal variations in the active stream length. As the climate gets drier, the average fraction of the flowing network decreases while its relative variability increases. Our study provides a novel conceptual basis for characterizing temporary streams and quantifying their ecological and biogeochemical impacts.Gianluca BotterFilippo VingianiAlfonso SenatoreCarrie JensenMarkus WeilerKevin McGuireGiuseppe MendicinoNicola DurighettoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Gianluca Botter
Filippo Vingiani
Alfonso Senatore
Carrie Jensen
Markus Weiler
Kevin McGuire
Giuseppe Mendicino
Nicola Durighetto
Hierarchical climate-driven dynamics of the active channel length in temporary streams
description Abstract Looking across a landscape, river networks appear deceptively static. However, flowing streams expand and contract following ever-changing hydrological conditions of the surrounding environment. Despite the ecological and biogeochemical value of rivers with discontinuous flow, deciphering the temporary nature of streams and quantifying their extent remains challenging. Using a unique observational dataset spanning diverse geomorphoclimatic settings, we demonstrate the existence of a general hierarchical structuring of river network dynamics. Specifically, temporary stream activation follows a fixed and repeatable sequence, in which the least persistent sections activate only when the most persistent ones are already flowing. This hierarchical phenomenon not only facilitates monitoring activities, but enables the development of a general mathematical framework that elucidates how climate drives temporal variations in the active stream length. As the climate gets drier, the average fraction of the flowing network decreases while its relative variability increases. Our study provides a novel conceptual basis for characterizing temporary streams and quantifying their ecological and biogeochemical impacts.
format article
author Gianluca Botter
Filippo Vingiani
Alfonso Senatore
Carrie Jensen
Markus Weiler
Kevin McGuire
Giuseppe Mendicino
Nicola Durighetto
author_facet Gianluca Botter
Filippo Vingiani
Alfonso Senatore
Carrie Jensen
Markus Weiler
Kevin McGuire
Giuseppe Mendicino
Nicola Durighetto
author_sort Gianluca Botter
title Hierarchical climate-driven dynamics of the active channel length in temporary streams
title_short Hierarchical climate-driven dynamics of the active channel length in temporary streams
title_full Hierarchical climate-driven dynamics of the active channel length in temporary streams
title_fullStr Hierarchical climate-driven dynamics of the active channel length in temporary streams
title_full_unstemmed Hierarchical climate-driven dynamics of the active channel length in temporary streams
title_sort hierarchical climate-driven dynamics of the active channel length in temporary streams
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/f08ebf4a0a44495cb2e73b492f445387
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