Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Volltext Shareable Link
Titel (primär) Adaptive observation-based subsurface conceptual site modeling framework combining interdisciplinary methodologies: a case study on advancing the understanding of a groundwater nitrate plume occurrence
Autor Utom, A.U.; Werban, U.; Leven, C.; Müller, C.; Dietrich, P.;
Journal / Serie Environmental Science and Pollution Research
Erscheinungsjahr 2019
Department WANA; MET;
Band/Volume 26
Heft 16
Sprache englisch;
POF III (gesamt) T53;
Keywords Observation-based CSM framework; Multidisciplinary tools; Site characterization; Case study example; Groundwater nitrate; Environmental science and engineering
UFZ Querschnittsthemen MOSAIC;
Abstract Traditional site characterization and laboratory testing methods are insufficient to quantify and conceptualize subsurface contaminant source-pathway-receptor heterogeneity issues, as they hamper groundwater risk assessment and water resource management using mathematical modeling. To address these issues, we propose an adaptive observation-based conceptual site modeling framework, which emphasizes the need for the iterative testing of hypotheses centered on specific questions with clearly defined objectives using interdisciplinary tools (including, but not limited to, geology, microbiology, hydrogeology, geophysics, and the chemistry of solute fate and transport). Under this framework, we present a case study aimed at a goal-oriented investigation of the source and occurrence of a groundwater nitrate plume previously identified using chemical concentration data from sparsely distributed, conventional, and regional groundwater monitoring wells. These investigations occurred in stages, with the first comprehensive outcome of cost-efficient, non-invasive surface geophysical surveys localizing subsurface heterogeneities laying the groundwork for collaborative, minimally invasive, direct push-based investigations followed by groundwater chemical and stable isotope analyses for source fingerprinting and bioprocess evaluation. Despite the obvious need for further refinement of the conceptual site model as new data become available, we illustrate that the step-by-step integrative framework was useful for systematic maximization of the strengths of different investigation methodologies. Such frameworks and approaches should be encouraged for successful environmental site characterization, monitoring, and modeling.
ID 21811
dauerhafte UFZ-Verlinkung http://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=21811
Utom, A.U., Werban, U., Leven, C., Müller, C., Dietrich, P. (2019):
Adaptive observation-based subsurface conceptual site modeling framework combining interdisciplinary methodologies: a case study on advancing the understanding of a groundwater nitrate plume occurrence
Environ. Sci. Pollut. Res. 26 (16), 15754 - 15766