Management of water resources in complex environmental systems including lakes or reservoir, requires advanced hydrological modelling to forecast main state parameters (levels,volumes, temperature, pollution level, …) and impacts of human activities on the natural context. In this work an opensource computational model is applied and tested in a typical Italian lake environment, the Bolsena lake, where surface flows, deep flows, direct losses from the lake surface, the lake regulation volume, and anthropic uses (drawing from and discharging into the lake) are jointly involved . Bolsena Lake, located in northern Lazio, the largest volcanic lake in Europe, is a source of both environmental and economic wealth for the neighboring area, drawing tourists and providing drinking and irrigation water. Recently the system’s hydraulic state has undergone moments of unbalance, due to the alternation of drought and flood periods starting in the early 1990s which have led to not negligible consequences from hydrological (decreased flow of some springs in the hydrogeological basin and toward the outlet, inundation of facing villages) and societal point of views. The complexity of the hydrogeological and anthropic system and the current technical/scientific relevance of the latest water emergencies occurring at the lake, put in evidence the need of a solid plan to manage all different extreme scenarios that can affect the lake basin. Therefore an instrument of basin/lake and lake/river management and simulation is necessary for mitigating the extreme values of the levels and flows and for controlling lake water quality.

On the role of Hydrological balancing in lake basin management

Biscarini C;
2014

Abstract

Management of water resources in complex environmental systems including lakes or reservoir, requires advanced hydrological modelling to forecast main state parameters (levels,volumes, temperature, pollution level, …) and impacts of human activities on the natural context. In this work an opensource computational model is applied and tested in a typical Italian lake environment, the Bolsena lake, where surface flows, deep flows, direct losses from the lake surface, the lake regulation volume, and anthropic uses (drawing from and discharging into the lake) are jointly involved . Bolsena Lake, located in northern Lazio, the largest volcanic lake in Europe, is a source of both environmental and economic wealth for the neighboring area, drawing tourists and providing drinking and irrigation water. Recently the system’s hydraulic state has undergone moments of unbalance, due to the alternation of drought and flood periods starting in the early 1990s which have led to not negligible consequences from hydrological (decreased flow of some springs in the hydrogeological basin and toward the outlet, inundation of facing villages) and societal point of views. The complexity of the hydrogeological and anthropic system and the current technical/scientific relevance of the latest water emergencies occurring at the lake, put in evidence the need of a solid plan to manage all different extreme scenarios that can affect the lake basin. Therefore an instrument of basin/lake and lake/river management and simulation is necessary for mitigating the extreme values of the levels and flows and for controlling lake water quality.
978-88-96504-07-9
water budget; Bolsena Lake; hydrogeological modeling
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12071/2276
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