Modelling hydrologic and geochemical filtering of reactive solute transport in catchments

P. S.C. Rao, N. B. Basu, S. Zanarado, C. J. Harman, M. Sivapalan, A. Rinaldo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We explored how anthropogenic and hydro-climatic forcing controls the dynamics of water and pesticide transport through hillslopes, as reflected in the hydrologic and water-quality measurements in stream networks draining intensively managed agricultural catchments. We adopted two parsimonious modelling approaches to examine the stochastic, episodic transport through hillslopes in response to a series of rainfall events. In both approaches, the hillslopes and the stream network act as a series of nonlinear, hierarchical, dynamic filters, to both delay and attenuate the hydrologic and biogeochemical signals observed in catchments. We used the two modelling approaches to explore the specific coupling of the hydrological and biogeochemical processes, and the role of the antecedent conditions in the observed emergent patterns along the river networks.

Original languageEnglish (US)
Title of host publicationGQ10
Subtitle of host publicationGroundwater Quality Management in a Rapidly Changing World
Pages451-454
Number of pages4
StatePublished - Dec 1 2011
Event7th International Groundwater Quality Conference: Groundwater Quality Management in a Rapidly Changing World, GQ10 - Zurich, Switzerland
Duration: Jun 13 2010Jun 18 2010

Publication series

NameIAHS-AISH Publication
Volume342
ISSN (Print)0144-7815

Other

Other7th International Groundwater Quality Conference: Groundwater Quality Management in a Rapidly Changing World, GQ10
CountrySwitzerland
CityZurich
Period6/13/106/18/10

Keywords

  • Catchment-scale contaminant export
  • Mass-response function
  • Pesticide fate and transport
  • Piston displacement model
  • Stochastic modelling

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Fingerprint Dive into the research topics of 'Modelling hydrologic and geochemical filtering of reactive solute transport in catchments'. Together they form a unique fingerprint.

  • Cite this

    Rao, P. S. C., Basu, N. B., Zanarado, S., Harman, C. J., Sivapalan, M., & Rinaldo, A. (2011). Modelling hydrologic and geochemical filtering of reactive solute transport in catchments. In GQ10: Groundwater Quality Management in a Rapidly Changing World (pp. 451-454). (IAHS-AISH Publication; Vol. 342).