Barbero, Diego

Bucci, Arianna

De Luca, Domenico

Forno, Maria Gabriella

Gisolo, Alice

Lasagna, Manuela

English

DE LUCA, Domenico

Institutional Research Information System University of Turin

See	discussions,	stats,	and	author	profiles	for	this	publication	at:	https://www.researchgate.net/publication/282155611THERMAL	FEATURES	AND	ANTHROPOGENICWARMING	OF	SHALLOW	AQUIFERS	INPIEDMONT	REGION	(NW	ITALY)Conference	Paper	·	September	2015READS146	authors,	including:Arianna	BucciUniversità	degli	Studi	di	Torino8	PUBLICATIONS			3	CITATIONS			SEE	PROFILEDiego	BarberoUniversità	degli	Studi	di	Torino21	PUBLICATIONS			13	CITATIONS			SEE	PROFILEManuela	LasagnaUniversità	degli	Studi	di	Torino74	PUBLICATIONS			102	CITATIONS			SEE	PROFILEDomenico	De	LucaUniversità	degli	Studi	di	Torino87	PUBLICATIONS			109	CITATIONS			SEE	PROFILEAvailable	from:	Diego	BarberoRetrieved	on:	05	May	2016421 - THERMAL FEATURES AND ANTHROPOGENIC WARMING OF SHALLOW AQUIFERS IN PIEDMONT REGION (NW ITALY)Arianna BucciDepartment of Earth Sciences, University of Torino, Torino, ItalyDiego BarberoDepartment of Earth Sciences, University of Torino, Torino, ItalyAlice GisoloDepartment of Earth Sciences, University of Torino, Torino, ItalyManuela LasagnaDepartment of Earth Sciences, University of Torino, Torino, ItalyMaria Gabriella FornoDepartment of Earth Sciences, University of Torino, Torino, ItalyDomenico Antonio De LucaDepartment of Earth Sciences, University of Torino, Torino, ItalyThis work analyses the thermal trend of the shallow aquifer in the Piedmont Region with a specific focus on Turin town and its Province, one of the biggest urbanized areas of NW Italy. The dataset consists in two surveys of thermal logs. The first survey was carried out in 2008 on 100 observation points of the whole Piedmont Region territory. The second survey was performed in 2014 on 40 points in the Turin Province. Each survey consists of spring and autumn measurements of groundwater temperature, acquired in piezometers screened mostly in the shallow aquifer.Both the areal and the vertical trend of groundwater temperatures were assessed from the dataset. The areal distribution reveals an inhomogeneous pattern in the Piedmont plain, largely attributable to geological and hydrogeological features. The 2014 survey, focused on the Turin Province, highlighted a significant concentration of warmer temperatures in the Turin urban area. The difference with the rural area, more evident in spring, reaches +2°C. The groundwater warming in Turin urban area was attributed to localized sources (sewer/wastewater discharges, factory districts, geothermal plants, etc) and extensive sources (soil sealing, buildings, intense traffic). These latter are expected to cause air and ground heating and hence groundwater warming.The vertical distribution of temperatures displays a seasonal fluctuation, whose amplitude ranges 0.1÷8°C with respect to the undisturbed value. A statistical approach highlights several differences between rural and urban area in Turin Province. For example, the depth where the seasonal effects disappear is deeper in rural areas: in the Lanzo alluvial fan -about 10 km N from Turin- this depth is found at around 40 m from ground level, while in Turin is about 35 m (the water table being respectively at 6.5 and 15.6 m from ground level). Even the expected temperature below the seasonal fluctuation zone is different, displaying higher temperatures in Turin urban area than in rural area.From the outlined scenario, the necessity of analyzing the groundwater thermal features, as well as the study of anthropogenic footprints, appears to be very important for the management of the shallow aquifer as a geothermal resource.Session S4.1 - Aqua 2015 - 42nd IAH Congress1

Thermal features and anthropogenic warming of shallow aquifer in Piedmont Region (NW Italy)

https://iris.unito.it/bitstream/2318/1637859/1/abstract_421-aqua2015-4.pdf

Thermal features and anthropogenic warming of shallow aquifer in Piedmont Region (NW Italy)

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