6533b830fe1ef96bd1297d72

RESEARCH PRODUCT

An automatic tool for reconstructing monthly time-series of hydro-climatic variables at ungauged basins

Francesco ViolaL. V. NotoDario PumoF Lo Conti

subject

Environmental EngineeringMeteorologyInterface (computing)Rainfall-runoff model0208 environmental biotechnologyDrainage basin02 engineering and technologyStructural basinWater balanceEcosystem modelEvapotranspirationHydrologygeographygeography.geographical_feature_categoryEcological ModelingSettore ICAR/02 - Costruzioni Idrauliche E Marittime E IdrologiaGIS020801 environmental engineeringMODISInformation modelEnvironmental scienceThornthwaite methodWater balance modelSurface runoffSoftwareMonthly time-serie

description

Abstract Integrative information models for filling/reconstructing hydro-climatic time-series are required for a variety of practical applications. A GIS-based model for a rapid and reliable assessment of monthly time-series of several key hydro-climatic variables at the basin scale, is here developed as plug-in and applied to the entire region of Sicily (Italy). The plug-in, once the desired basin outlet section and time-window are selected, uses appropriate spatial techniques and algorithms to identify its drainage area and estimate the corresponding mean areal rainfall and temperatures time-series. A recent regional regressive rainfall-runoff model is successively applied for the assessment of the runoff time-series. Finally, a consolidated temperature-based method is applied to estimate monthly potential evapotranspiration time-series, while, actual evapotranspiration and soil moisture storage time-series are derived through a classical water balance model. The tool, supported by a preliminarily developed database, includes automatic procedures for data retrieving and processing and a user friendly interface.

https://doi.org/10.1016/j.envsoft.2017.06.045