## Geological realism in hydrogeological and geophysical inverse modeling: A review

### Détails

ID Serval

serval:BIB_083188F68A76

Type

**Article**: article d'un périodique ou d'un magazine.

Collection

Publications

Fonds

Titre

Geological realism in hydrogeological and geophysical inverse modeling: A review

Périodique

Advances in Water Resources

ISSN

0309-1708 (Print)

Statut éditorial

Publié

Date de publication

2015

Peer-reviewed

Oui

Volume

86

Pages

86-101

Langue

anglais

Résumé

Scientific curiosity, exploration of georesources and environmental concerns are pushing the geoscientific research community toward subsurface investigations of ever-increasing complexity. This review explores various approaches to formulate and solve inverse problems in ways that effectively integrate geological concepts with geophysical and hydrogeological data. Modern geostatistical simulation algorithms can produce multiple subsurface realizations that are in agreement with conceptual geological models and statistical rock physics can be used to map these realizations into physical properties that are sensed by the geophysical or hydrogeological data. The inverse problem consists of finding one or an ensemble of such subsurface realizations that are in agreement with the data. The most general inversion frameworks are presently often computationally intractable when applied to large-scale problems and it is necessary to better understand the implications of simplifying (1) the conceptual geological model (e.g., using model compression); (2) the physical forward problem (e.g., using proxy models); and (3) the algorithm used to solve the inverse problem (e.g., Markov chain Monte Carlo or local optimization methods) to reach practical and robust solutions given today's computer resources and knowledge. We also highlight the need to not only use geophysical and hydrogeological data for parameter estimation purposes, but also to use them to falsify or corroborate alternative geological scenarios.

Site de l'éditeur

Création de la notice

27/06/2016 10:05

Dernière modification de la notice

18/11/2016 11:38