Modelling of thermal anomalies in the NW border of the Valencia Trough by groundwater convection

Manel Fernández*, Montserrat Torné, Hermann Zeyen

*Corresponding author for this work

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A 2D numerical model study of a regional scale thermal anomaly along the north Spanish border of the Mediterranean Sea indicates strong lateral offshore heat transport due to groundwater circulation. Although the area is situated at the western side of the Valencia Trough rift zone, the amplitude and wavelength of this coupled negative‐positive anomaly cannot be explained by conductive heat flow. A strong hydraulic gradient onshore and a thick layer of permeable Mesozoic limestones should permit lateral advection of pore water about 30 km offshore where discharge creates anomalous temperature gradients. This result underscores the importance of deep groundwater flow even in the interpretation of regional scale thermal anomalies in rifting zones.

Original languageEnglish
Pages (from-to)105-108
Number of pages4
JournalGeophysical Research Letters
Volume17
Issue number1
DOIs
Publication statusPublished - 1990
Externally publishedYes

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