Orison: {An} {Integrated} {Environment} for {Subsurface} {Data} {Assimilation}

Romain Chassagne and Antoine Armandine Les Landes and Théophile Lohier. ( 2025 )
in: 2025 {RING} meeting, pages 145--147, ASGA

Abstract

Data assimilation for the subsurface combines models with observational data to improve characterization, make predictions, and reduce uncertainties in the decision-making process. Several open-source frameworks provide tools for ensemble-based and variational assimilation techniques. These codes are widely applied across fields like atmospheric sciences, oceanography, and hydrology. More specifically, in the area of subsurface applications, tools like PDAF, Open-DARTS, and PEST are particularly relevant, enabling data assimilation in geomodeling, groundwater flow, contaminant transport, and geothermal reservoir modeling. Other frameworks exist that are more or less user-friendly and adaptable to different applications. However, in the specific case of geothermal applications, there is currently no dedicated framework readily available and integrated with an open-source thermal-hydro-geology simulation code.

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BibTeX Reference

@inproceedings{Chassagne2025RM,
 abstract = {Data assimilation for the subsurface combines models with observational data to improve characterization, make predictions, and reduce uncertainties in the decision-making process. Several open-source frameworks provide tools for ensemble-based and variational assimilation techniques. These codes are widely applied across fields like atmospheric sciences, oceanography, and hydrology. More specifically, in the area of subsurface applications, tools like PDAF, Open-DARTS, and PEST are particularly relevant, enabling data assimilation in geomodeling, groundwater flow, contaminant transport, and geothermal reservoir modeling. Other frameworks exist that are more or less user-friendly and adaptable to different applications. However, in the specific case of geothermal applications, there is currently no dedicated framework readily available and integrated with an open-source thermal-hydro-geology simulation code.},
 author = {Chassagne, Romain and Landes, Antoine Armandine Les and Lohier, Théophile},
 booktitle = {2025 {RING} meeting},
 language = {en},
 pages = {145--147},
 publisher = {ASGA},
 title = {Orison: {An} {Integrated} {Environment} for {Subsurface} {Data} {Assimilation}},
 year = {2025}
}