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Reconstruction of remote climate change from borehole temperature measurement in the eastern part of Morocco

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Abstract

Data from temperature measurements in boreholes are indicators of the temperature variations associated with past climate change. This paper is a contribution to reconstruct the ground surface temperature history (GSTH) from geothermal data in the eastern part of Morocco. From a set of several temperature logs, measured in the study area, only two were found suitable for estimating the ground surface temperature history (GSTH). In order to reconstruct the surface temperature past changes the functional space inversion method (FSI) was used. The inversion reveals a recent warming in the last century with respective amplitude of 0.1 °C and 1 °C for the boreholes 2952 in Oujda and 1624 in Berkane. These results can be confirmed by the air temperature record of the meteorical station in Oujda despite the scarceness of data beyond 1959.

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Acknowledgements

The authors warmly thank the anonymous reviewers for their detailed and constructive criticisms, which were of great help in improving this manuscript. This work was supported by the Moroccan Portuguese CNRST-GRICES project SDT/2010 which is collaboration between the laboratory of hydrogeology and environment in the faculty of science in Oujda, the scientific institute of Rabat and the geophysical center of Evora.

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Correspondence to A. E. Barkaoui.

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Barkaoui, A.E., Correia, A., Zarhloule, Y. et al. Reconstruction of remote climate change from borehole temperature measurement in the eastern part of Morocco. Climatic Change 118, 431–441 (2013). https://doi.org/10.1007/s10584-012-0638-7

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  • DOI: https://doi.org/10.1007/s10584-012-0638-7

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