Variability of in-stream and riparian storage in a beaded arctic stream

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TitleVariability of in-stream and riparian storage in a beaded arctic stream
Publication TypeJournal Article
Year of Publication2012
AuthorsMerck, MF, Neilson, BT, Cory, RM, Kling, GW
JournalHydrological Processes
Volume26
Issue19
Pagination2938-2950
ISBN Number1099-1085
Accession NumberARC722
Keywordshydrologic connectivity
Abstract

The extent and variability of water storage and residence times throughout the open water season in beaded arctic streams are poorly understood. Data collected in Imnavait Creek, a beaded stream located north of the Brooks Range in Alaska, were used to better understand the effects of in-pool and riparian storage on heat and mass movement through beaded streams. Temperature data of high spatial resolution within the pools and surrounding sediments were used with volumetric discharge and electrical conductivity to identify storage areas within the pools, banks, and other marshy areas within the riparian zone, including subsurface flow paths that connect the pools. These subsurface flows were found to alter water conductivity and the character of dissolved organic matter (DOM) in short reaches (10 s of m) while influencing the chemistry of downstream pools. During low flow periods, persistent stratification occurred within the pools due to absorption of solar radiation by DOM coupled with permafrost below and low wind stress at the pool surface. Additionally, one of the shallow pools (

URLhttp://dx.doi.org/10.1002/hyp.8323
DOI10.1002/hyp.8323
Short TitleVariability of in-stream and riparian storage in a beaded arctic stream