Forest cover influence on regional flood frequency assessment in Mediterranean catchments
The paper aims at evaluating to what extent the forest cover can explain the component of runoff coefficient as defined in a regional flood frequency analysis based on the application of the rational formula coupled with a regional model of the annual maximum rainfall depths. The analysis is address...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2011-10-01
|
| Series: | Hydrology and Earth System Sciences |
| Online Access: | http://www.hydrol-earth-syst-sci.net/15/3077/2011/hess-15-3077-2011.pdf |
| _version_ | 1818257909411217408 |
|---|---|
| author | F. Preti G. Forzieri G. B. Chirico |
| author_facet | F. Preti G. Forzieri G. B. Chirico |
| author_sort | F. Preti |
| collection | DOAJ |
| description | The paper aims at evaluating to what extent the forest cover can explain the component of runoff coefficient as defined in a regional flood frequency analysis based on the application of the rational formula coupled with a regional model of the annual maximum rainfall depths. The analysis is addressed to evaluate the component of the runoff coefficient which cannot be captured by the catchment lithology alone. Data mining is performed on 75 catchments distributed from South to Central Italy. Cluster and correlation structure analyses are conducted for distinguishing forest cover effects within catchments characterized by hydro-morphological similarities. We propose to improve the prediction of the runoff coefficient by a linear regression model, exploiting the ratio of the forest cover to the catchment critical rainfall depth as dependent variable. The proposed regression enables a significant bias correction of the runoff coefficient, particularly for those small mountainous catchments, characterised by larger forest cover fraction and lower critical rainfall depth. |
| first_indexed | 2024-12-12T17:51:08Z |
| format | Article |
| id | doaj.art-414d8df1b7eb4d55b1879f98f437fa74 |
| institution | Directory Open Access Journal |
| issn | 1027-5606 1607-7938 |
| language | English |
| last_indexed | 2024-12-12T17:51:08Z |
| publishDate | 2011-10-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Hydrology and Earth System Sciences |
| spelling | doaj.art-414d8df1b7eb4d55b1879f98f437fa742022-12-22T00:16:49ZengCopernicus PublicationsHydrology and Earth System Sciences1027-56061607-79382011-10-0115103077309010.5194/hess-15-3077-2011Forest cover influence on regional flood frequency assessment in Mediterranean catchmentsF. PretiG. ForzieriG. B. ChiricoThe paper aims at evaluating to what extent the forest cover can explain the component of runoff coefficient as defined in a regional flood frequency analysis based on the application of the rational formula coupled with a regional model of the annual maximum rainfall depths. The analysis is addressed to evaluate the component of the runoff coefficient which cannot be captured by the catchment lithology alone. Data mining is performed on 75 catchments distributed from South to Central Italy. Cluster and correlation structure analyses are conducted for distinguishing forest cover effects within catchments characterized by hydro-morphological similarities. We propose to improve the prediction of the runoff coefficient by a linear regression model, exploiting the ratio of the forest cover to the catchment critical rainfall depth as dependent variable. The proposed regression enables a significant bias correction of the runoff coefficient, particularly for those small mountainous catchments, characterised by larger forest cover fraction and lower critical rainfall depth.http://www.hydrol-earth-syst-sci.net/15/3077/2011/hess-15-3077-2011.pdf |
| spellingShingle | F. Preti G. Forzieri G. B. Chirico Forest cover influence on regional flood frequency assessment in Mediterranean catchments Hydrology and Earth System Sciences |
| title | Forest cover influence on regional flood frequency assessment in Mediterranean catchments |
| title_full | Forest cover influence on regional flood frequency assessment in Mediterranean catchments |
| title_fullStr | Forest cover influence on regional flood frequency assessment in Mediterranean catchments |
| title_full_unstemmed | Forest cover influence on regional flood frequency assessment in Mediterranean catchments |
| title_short | Forest cover influence on regional flood frequency assessment in Mediterranean catchments |
| title_sort | forest cover influence on regional flood frequency assessment in mediterranean catchments |
| url | http://www.hydrol-earth-syst-sci.net/15/3077/2011/hess-15-3077-2011.pdf |
| work_keys_str_mv | AT fpreti forestcoverinfluenceonregionalfloodfrequencyassessmentinmediterraneancatchments AT gforzieri forestcoverinfluenceonregionalfloodfrequencyassessmentinmediterraneancatchments AT gbchirico forestcoverinfluenceonregionalfloodfrequencyassessmentinmediterraneancatchments |