Slow and Quick Flow Models Explain the Temporal Dynamics of Daily Salinity in Streams DOI Creative Commons
Thomas G. Westfall, Tim Peterson, Anna Lintern

и другие.

Water Resources Research, Год журнала: 2025, Номер 61(6)

Опубликована: Июнь 1, 2025

Abstract The availability of long‐term high‐frequency water quality data sets provides an opportunity to investigate transport pathways within catchments. simple “C‐Q” log‐regression equation is commonly used the relationship between concentrations and streamflow. However, significant variability can result in poor explanation temporal dynamics using C‐Q equation. equations with multiple flow components may better capture these dynamics, but they often only provide empirical interpretations require subjective procedures partition Here, we aim improve simulation over time by evaluating existing newly derived quick‐slow equations. We derive eight evaluate their performance along seven are applied 20 years daily salinity records 23 catchments Victoria, Australia. evidence ratio identifies our version Hubbard Brook as most acceptable at 14 a mixing model that explains in‐stream function volumes subsurface, differs additional slower volume. Compared equation, this explained average increase 0.17 Nash‐Sutcliffe efficiency coefficient. Global parameter estimation gave objective estimate baseflow plausible index ranging 0.05 0.40 across modified basis for further examining

Язык: Английский

The Role of Lithology on Concentration‐Discharge Relationships and Carbon Export in Two Adjacent Headwater Catchments DOI Creative Commons

L. Giggy,

Margaret Zimmer

Water Resources Research, Год журнала: 2025, Номер 61(4)

Опубликована: Март 29, 2025

Abstract Headwater catchments have strong impacts on downstream waterways, near‐shore ecosystems, and the quality of water available for growing human populations. Thus, understanding how solutes are exported through these upland landscapes is critically important. A body literature highlights interaction topography, climate, critical zone structure as a key control streamflow chemical export. However, more focused work needed to pinpoint variability in subsurface across lithologically complex regions signals at catchment outlets. Here, we aim better understand lithology zones modulate response solute export patterns two central coastal California headwater that similar vegetation, climate but different lithologies. We monitored collected surface samples outlets dissolved major ions organic carbon (DOC) consecutive years. The with mélange bedrock displayed much flashier hydrologic behavior 7.8 times higher peak flow values 1.9 mean event concentrations DOC, suggesting shorter shallower paths likely arise from bedrock. Despite distinct DOC export, ion were broadly chemostatic, which may be driven by rapid reactions both catchments. Our contributes building an integrated subtle differences can profound routed

Язык: Английский

Процитировано

1
Solute Generation and Transport in Semiarid Mountain Catchments of the Central Chilean Andes DOI
Marcos Macchioli Grande,

Agustín Soto-Maass,

Marco Pfeiffer

и другие.

Earth Systems and Environment, Год журнала: 2025, Номер unknown

Опубликована: Май 12, 2025

Язык: Английский

Процитировано

0
Slow and Quick Flow Models Explain the Temporal Dynamics of Daily Salinity in Streams DOI Creative Commons
Thomas G. Westfall, Tim Peterson, Anna Lintern

и другие.

Water Resources Research, Год журнала: 2025, Номер 61(6)

Опубликована: Июнь 1, 2025

Abstract The availability of long‐term high‐frequency water quality data sets provides an opportunity to investigate transport pathways within catchments. simple “C‐Q” log‐regression equation is commonly used the relationship between concentrations and streamflow. However, significant variability can result in poor explanation temporal dynamics using C‐Q equation. equations with multiple flow components may better capture these dynamics, but they often only provide empirical interpretations require subjective procedures partition Here, we aim improve simulation over time by evaluating existing newly derived quick‐slow equations. We derive eight evaluate their performance along seven are applied 20 years daily salinity records 23 catchments Victoria, Australia. evidence ratio identifies our version Hubbard Brook as most acceptable at 14 a mixing model that explains in‐stream function volumes subsurface, differs additional slower volume. Compared equation, this explained average increase 0.17 Nash‐Sutcliffe efficiency coefficient. Global parameter estimation gave objective estimate baseflow plausible index ranging 0.05 0.40 across modified basis for further examining

Язык: Английский

Процитировано

0