Evaluation of hydrological rainfall loss methods using small-scale physical landslide model

Nejc Bezak (Avtor), Josip Peranić (Avtor), Matjaž Mikoš (Avtor), Željko Arbanas (Avtor)

Povzetek

An adequate representation of the relationship between effective rainfall and rainfall losses is required in hydrological rainfall–runoff models to reduce the uncertainty of the modelling results. This study evaluates the performance of several hydrological rainfall loss methods using the experimental data obtained from a laboratory small-scale physical landslide model with variable slope inclination, homogenous material and no vegetation effects. Three different experiments were selected and five rainfall loss methods were tested to evaluate their performance in reproducing the experimental results from the perspective of the surface runoff formation on the experimental slope. Initial and calibrated parameters were used to test the performance of these hydrological rainfall loss methods. The results indicate that the initial parameters of the rainfall loss model can satisfactorily reproduce the experimental results in some cases. Despite the fact that the slope material characteristics used in the laboratory experiments were relatively homogenous, some well-known methods yielded inaccurate results. Hence, calibration of the rainfall loss model proved to be essential. It should also be noted that, in some cases, the calibrated model parameters were relatively different from the initial model parameters estimated from the literature. None of the tested hydrological rainfall loss methods proved to be superior to the others. Therefore, in the case of natural environments with heterogeneous soil characteristics, multiple rainfall loss methods should be tested and the most suitable method should be selected only after cross-validation or a similar evaluation of the tested methods.

Ključne besede

zemeljski plazovi;laboratorijski poskusi;hidrologija;izgube padavin;površinski odtok;časovna dinamika;HEC-HMS;ocena modela;landslides;lab experiment;hydrology;infiltration;rainfall loss;surface runoff;temporal dynamics;model evaluation;

Podatki

Jezik:	Angleški jezik
Leto izida:	2022
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
UDK:	502/504:556
COBISS:	120546563
ISSN:	2073-4441
Št. ogledov:	28
Št. prenosov:	14
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	zemeljski plazovi;laboratorijski poskusi;hidrologija;izgube padavin;površinski odtok;časovna dinamika;HEC-HMS;ocena modela;
Vrsta dela (COBISS):	Članek v reviji
Strani:	21 str.
Letnik:	ǂLetn. ǂ14
Zvezek:	ǂšt. ǂ17, art. 2726
Čas izdaje:	2022
DOI:	10.3390/w14172726
ID:	16534305