A BME solution of the stochastic three-dimensional Laplace equation representing a geothermal field subject to site-specific information

Papantonopoulos, G; Modis, K

dc.contributor.author	Papantonopoulos, G	en
dc.contributor.author	Modis, K	en
dc.date.accessioned	2014-03-01T01:23:22Z
dc.date.available	2014-03-01T01:23:22Z
dc.date.issued	2006	en
dc.identifier.issn	1436-3240	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16929
dc.subject	BME	en
dc.subject	Geothermal	en
dc.subject	Stochastic	en
dc.subject	Underground water	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Environmental Sciences	en
dc.subject.classification	Statistics & Probability	en
dc.subject.classification	Water Resources	en
dc.subject.other	geothermal system	en
dc.subject.other	groundwater	en
dc.subject.other	Laplace transform	en
dc.subject.other	spring water	en
dc.subject.other	stochasticity	en
dc.subject.other	temperature gradient	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	Greece	en
dc.subject.other	Southern Europe	en
dc.title	A BME solution of the stochastic three-dimensional Laplace equation representing a geothermal field subject to site-specific information	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s00477-005-0244-6	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s00477-005-0244-6	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	This work develops a model of the geothermal field in the Nea Kessani region (Greece) by means of the Bayesian maximum entropy (BME) method, which describes the temperature variations across space in the underground geological formations. The geothermal field is formed by a thermal reservoir consisting of arcosic sandstones. The temperature distribution vs depth was first investigated by the Greek Institute of Geology and Mineral Exploration (IGME) using measurements in a set of vertical drill holes. These measurements showed that hot fluids rising from the deep enter the reservoir in a restricted area of the field and flow towards local thermal springs. The field modelling, which was based on the powerful BME concept, involves the solution of a stochastic partial differential equation that assimilates important site-specific information. The stochastic three-dimensional steady-state Laplace equation was considered as general knowledge and the drilling exploration data were used to construct the specificatory knowledge base in the BME terminology. The produced map is more informative and, in general, it gives higher temperature estimates compared to previous studies of the same region. This is also in agreement with the quartz geothermometry analysis carried out by IGME. © Springer-Verlag 2005.	en
heal.publisher	SPRINGER	en
heal.journalName	Stochastic Environmental Research and Risk Assessment	en
dc.identifier.doi	10.1007/s00477-005-0244-6	en
dc.identifier.isi	ISI:000233629400003	en
dc.identifier.volume	20	en
dc.identifier.issue	1-2	en
dc.identifier.spage	23	en
dc.identifier.epage	32	en