Results 81 to 90 of about 2,412 (213)

River‐Floodplain Exchange Influences Basin‐Scale Mixing During Large Fluvial Flood Events

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract River‐floodplain exchange occurs when high flows inundate the floodplain and exchange water bi‐directionally between substrates and communities. While well‐understood locally, the full spatial heterogeneity of exchange event duration (the residence time) and magnitude (the exchange flux, or discharge) remains poorly constrained, limiting our ...
Craig B. Brinkerhoff, Peter A. Raymond, Colin J. Gleason   +2 more
wiley   +1 more source

Thermal heterogeneity in the hyporheic zone of a glacial floodplain

, 2001
We examined the thermal regime of surface and hyporheic waters at three kryal sites and four krenal streams within the channel network of a glacial floodplain. Temperature was continuously measured for 1 year in the surface stream and at sediment depths
Florian Malard, Alain Mangin, Urs Uehlinger, J V Ward   +3 more
core   +1 more source

Differential microplastic storage in main channel and backwater sediments of the Kaskaskia River (Illinois, United States)

Journal of Environmental Quality, Volume 55, Issue 3, May/June 2026.
Abstract Rivers are major pathways for microplastic transport, yet controls on microplastic storage across different riverine environments remain poorly constrained, particularly in managed systems. Here, we quantify microplastic abundance and characteristics in water and sediments from the Kaskaskia River (Illinois), a regulated tributary of the ...
Mallory Snow, Sydney Walter, Michael J. Louison, John J. Sloan, Teresa Baraza   +4 more
wiley   +1 more source

Physical, chemical, and microbial dynamics in the hyporheic zone

, 2018
The area beneath a river where surface water mixes with groundwater (the hyporheic zone), is an important biogeochemical reactor, providing a variety of ecosystem services.
Kaufman, Matthew Henry
core   +1 more source

In‐Lake GHG Production Constrained by Lake DOM Mass Balance in a Boreal Catchment

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract The processing of organic carbon in surface waters represents a critical component of the carbon (C) cycle in boreal landscapes and is closely linked to greenhouse gas (GHG) emissions, primarily carbon dioxide (CO2) and methane (CH4). Utilizing a unique data set with dense monitoring of dissolved organic carbon (DOC), dissolved CO2, and CH4 at
Xiang Lu, Francois Clayer, Peter Dörsch, Dag Olav Hessen, Uta Brandt, Mats Rouven Ippach, Alexander Michael Delver, Heleen A. de Wit   +7 more
wiley   +1 more source

Spatial Variability in Trace Organic Compound Reactivity During Urban River Infiltration Into an Alluvial Aquifer

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Trace organic compounds (TrOCs) in lotic systems pose risks for ecosystem and human health. TrOCs can enter groundwater along losing river sections, yet little is known about the spatial extent of infiltration zones and the biogeochemical factors controlling the spatial variability of TrOC reactivity and removal, particularly along river‐to ...
Jonas L. Schaper, Olaf A. Cirpka, Malte Posselt, Joerg Lewandowski, Karin Meinikmann, Anke Putschew, Christiane Zarfl   +6 more
wiley   +1 more source

Nitrogen circulation in a Mediterranean holm oak forest, La Castanya, Montseny, northeastern Spain [PDF]

Hydrology and Earth System Sciences, 2002
The importance of storm frequency as well as the groundwater and hyporheic inputs on nitrate (NO3-N) and ammonium (NH4-N) levels in stream water were studied in a small perennial Mediterranean catchment, Riera Major, in northeast Spain.
A. Avila, A. Avila, A. Rodrigo, F. Rodà
doaj  

A Novel Approach Using Multiple Fluorescence Signals and Storm Event Clustering to Identify Riverine Dissolved Organic Matter Source Activation Pathways

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Despite the potential of multipeak in situ fluorescence to provide better insight into solute transport pathways, most high frequency studies have focused on a single fluorescence peak (e.g., humic‐like fluorescence [HLF]). To address this gap, we analyzed two years of 15‐min fluorescence data for HLF and tryptophan‐like fluorescence (TLF ...
Hongzheng Zhu, Kieran Khamis, Guilin Luo, Zhiguo Yu, David M. Hannah, Stefan Krause   +5 more
wiley   +1 more source

Gene‐Informed Modeling of Denitrification Process in Groundwater Through Dynamic Flux Balance Analysis and Deep Learning

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract We introduce two gene‐informed approaches that, for the first time, explicitly incorporate microbial genomic information into groundwater denitrification simulations. First, we couple the dynamic flux balance analysis (DFBA, which resolves genome‐resolved metabolic networks) with the PFLOTRAN reactive transport model (RTM).
Heng Dai, Yiyu Zhang, Yamin Deng, Alberto Guadagnini, Jing Yang, Zhengyi Pan, Wen Fang, Jin Zhang, Ming Ye, Songhu Yuan, Yanxin Wang   +10 more
wiley   +1 more source

Morphological traits and vertical distribution of hyporheic chironomid larvae in Atlantic Forest streams

Tropical Zoology, 2019
Hyporheic zone is an active ecotone constituted by the interstitial spaces between the particles of the riverbed. The use of morphological traits can be useful to detect organisms distribution patterns in these areas.
Riccardo Mugnai, Arlindo Serpa-Filho, Jorge Luiz Nessimian, Adriano Brilhante Kury, Silvia Vendruscolo Milesi   +4 more
doaj