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UID:pretalx-flowpath-2025-KW83S7@talks.staging.osgeo.org
DTSTART;TZID=CET:20250612T111000
DTEND;TZID=CET:20250612T114000
DESCRIPTION:Flow and transport processes in porous media encompass a divers
 e range of physical and (geo)chemical phenomena. While these take place ac
 ross multiple spatial and temporal scales\, their quantification is fraugh
 t with significant challenges. Their inherent complexity naturally leads t
 o multiple interpretations that are rendered through diverse conceptual mo
 dels and mathematical formulations. As we navigate the complexities of pro
 cess formulation and parameterization\, addressing uncertainties is then i
 ncreasingly critical. Key challenges include managing spatial heterogeneit
 y of model parameters\, such as\, e.g.\, permeability\, porosity or reacti
 on rate parameters\, and tackling our limited knowledge of the detailed ch
 aracteristics of the porous medium. In this context\, we delve into the un
 certainties associated with process and system formulation\, as well as pa
 rameterization. We evaluate their impact on critical model outputs of envi
 ronmental significance\, including solute concentrations\, source protecti
 on areas\, and reaction rates. Our discussion encompasses experimental stu
 dies\, characterization of spatial patterns and heterogeneities within por
 ous media\, global sensitivity analysis\, and stochastic inverse modeling.
  We explore these uncertainties through illustrative scenarios that range 
 from regional- to laboratory- scales. We consider complex aquifer systems\
 , the dynamics of a pharmaceutical compound at the laboratory scale\, and 
 nanoscale observations of mineral dissolution under continuous flow condit
 ions.
DTSTAMP:20260427T151753Z
LOCATION:Room R3
SUMMARY:Characterizing flow and transport in porous media: challenges of mo
 del and parameter uncertainty - Alberto Guadagnini
URL:https://talks.staging.osgeo.org/flowpath-2025/talk/KW83S7/
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