Groundwater and Surface Water Interaction

H. Maurice Valett, Ann Marie Reinhold

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Groundwater-surface water (GW-SW) interaction affects the physical, chemical, and biological attributes of both subsurface and surface ecosystems linked by exchange flows. Hydrologists and ecologists studying streams have led the way in pursuit of understanding GW-SW interactions, with particular focus on hyporheic zones, groundwater environments with bidirectional hydrologic connectivity to stream channels. This chapter emphasizes hyporheic GW-SW exchange but also reviews the importance of GW-SW exchange for other inland waters. GW-SW exchange is promoted by geomorphic features that interact with the flow of water. Such features range in size and character from bed forms to gravel bars to meanders and valley floor configurations, and—in general—the residence times for water (i.e., amount of time spent in flows linking surface and subsurface environments) increase with the spatial dimensions of flowpaths involved. A range of field methods exist to assess GW-SW exchange, which are tied to spatiotemporal scales of assessment. Recent advances in computer modeling of stream systems integrate ideas from hydrology, engineering, and ecology to increase understanding and predictive ability associated with GW-SW and its implications, particularly for water quality. Continued advancement of theoretical frameworks, computer models, and field studies addressing GW-SW interaction are critical for addressing the management and stewardship of water resources in times of environmental change.

Original languageEnglish
Title of host publicationEncyclopedia of Inland Waters, Second Edition
PublisherElsevier
Pages348-362
Number of pages15
Volume3
ISBN (Electronic)9780128220412
ISBN (Print)9780128191668
DOIs
StatePublished - Jan 1 2022

Keywords

  • Aquifer
  • Groundwater
  • Hydrodynamic
  • Hydrometric
  • Hyporheic
  • Interaction

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