Hydro-Geomorphologic-Based Water Budget at Event Time-Scale in A Mediterranean Headwater Catchment (Southern Italy)

The Ciciriello catchment is a 3 km2 drainage sub-basin of the Bussento river basin, located in southern part Campania Region (Southern Italy). Since 2012, this has been studied using an interdisciplinary approach—geomorphological, hydrogeological, and hydrological—and hydro-chemical monitoring system. Following previous research, aim paper to calibrate, on catchment, hydrologic parameters for water budget at event time-scales HEC-HMS model, adopting object-based hydro-geomorphological class features. Firstly, lumped modeling was performed calibrate from 20 observed hydrographs downstream station catchment. Then, physical-based rainfall–runoff conducted three different procedures: (1) applying recession coefficients each outlet with newly defined hydro-geomorphologic index (HGmI); (2) assessing storage coefficient as weighted mean HGmI; (3) associated largest HGmI sub-basin. adopted procedures were tested diverse goodness-of-fit indices, resulting good performance when hydro-geomorphotypes used parameter calibration. procedure can thus contribute improvements similar ungauged catchments Mediterranean, hilly, forested landscapes.