MONITORING HYDRO-CLIMATE RISKS IN THE LUGOJ AREA, ROMANIA PUBLISHED

IENCIU Anisoara Aurelia, Şmuleac Laura, Calinovici Ioan, Ciolac Valeria, Armas Andrei, Manea Dan
The most important hydro-climate risks in the Lugoj area, Romania, are hydric deficits, i.e. drought and flood periods. Drought, together with other destructive phenomena such as floods and pollution, is seen as the temporary incapacity of water resources of meeting consumption needs; it is, thus, one of the main global issues of our days. There have been, because of climate change, droughty periods in areas where the sum of annual or season precipitations is close to multiannual means: the problem is that the water came from high intensity (mm/min) precipitations, which prevented water from accumulating in the soil. The study aimed at presenting the hydric deficits (the existence of droughty periods and of hydric excess) in the Lugoj area over five years (2010-2014). The five years have been analysed from the perspective of several indicators of drought in literature. The following parameters of monitoring hydro-climate risks in the Lugoj area have been studied: sum of monthly and annual precipitations, mean monthly and annual evapotranspiration, monthly and annual hydric deficits and their graphic representation, mean monthly temperatures and their evolution; we have calculated and analysed climate and hydro-thermal indicators of drought (Hellman, Topor, Lang), we have characterised depending on the precipitation deficit, the Thornthwaite indicator of precipitation efficiency, and the hydro-thermal indicator Seleaninov. From the point of view of the rainfall regime, an important indicator in acknowledging drought and humidity excess depending on the sum of monthly precipitations in summer and even in spring (annual sum of precipitations), we can draw the conclusion that, during the period studied (2010-2014), the years 2010 and 2014 were humid, rainy. Depending on the precipitation deficit, compared to monthly, seasonal and annual multiannual means, we can say that June, August and September were excessively droughty and droughty months in all analysed years. The years 2011, 2012 and 2013 were demi-arid according to most indicators analysed, i.e. years with monthly and annual mean temperatures higher than multi-annual ones, with significant hydric deficits during the hot season. Results show that there were periods with hydric deficits, droughty periods in three years (2011-2013) of the five years we analysed in Lugoj, mainly during the hot season (April-September); these years were also defined as demi-arid in most indicators analysed
average monthly temperatures, sum of monthly precipitations, potential evapotranspiration, aridity coefficient, climate coefficient
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