Susceptibility to flooding in northern lisbon metropolitan area natural factors and impacts of changes in land use
twelve drainage basins in the northern Lisbon Metropolitan area (LMa) were analysed and compared because they are affected by floods that threaten life and livelihoods. the methodology was based on the calculation of quantitative indicators that reflect natural and human factors of floods (basin geo...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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CEG
2013-06-01
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| Series: | Finisterra - Revista Portuguesa de Geografia |
| Subjects: | |
| Online Access: | http://revistas.rcaap.pt/finisterra/article/view/3129/2520 |
| _version_ | 1818858796143869952 |
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| author | Miguel Leal Catarina Ramos |
| author_facet | Miguel Leal Catarina Ramos |
| author_sort | Miguel Leal |
| collection | DOAJ |
| description | twelve drainage basins in the northern Lisbon Metropolitan area (LMa) were analysed and compared because they are affected by floods that threaten life and livelihoods. the methodology was based on the calculation of quantitative indicators that reflect natural and human factors of floods (basin geometry, geological substrate, relief and drainage network in the 1st case; land use classes and land usage changes in the 2nd case). susceptibility indexes to flooding were developed based on these indicators, using Geographical information systems. the results of this study led to the identification of: (i) the basins with highest susceptibility to flooding; (ii) the conditioning factors that mostly contribute to the formation of floods in each basin;(iii) the impacts of changes in land use on the concentration times and peak discharges, which increase the flood hazard; (iv) the urban growth in the flood ‑prone zones, which in‑creases exposure and the flood risk in the LMa. |
| first_indexed | 2024-12-19T09:01:59Z |
| format | Article |
| id | doaj.art-531c68989abc4b94af17e5609b374f8f |
| institution | Directory Open Access Journal |
| issn | 0430-5027 |
| language | English |
| last_indexed | 2024-12-19T09:01:59Z |
| publishDate | 2013-06-01 |
| publisher | CEG |
| record_format | Article |
| series | Finisterra - Revista Portuguesa de Geografia |
| spelling | doaj.art-531c68989abc4b94af17e5609b374f8f2022-12-21T20:28:27ZengCEGFinisterra - Revista Portuguesa de Geografia0430-50272013-06-01XLVIII951740Susceptibility to flooding in northern lisbon metropolitan area natural factors and impacts of changes in land useMiguel LealCatarina Ramostwelve drainage basins in the northern Lisbon Metropolitan area (LMa) were analysed and compared because they are affected by floods that threaten life and livelihoods. the methodology was based on the calculation of quantitative indicators that reflect natural and human factors of floods (basin geometry, geological substrate, relief and drainage network in the 1st case; land use classes and land usage changes in the 2nd case). susceptibility indexes to flooding were developed based on these indicators, using Geographical information systems. the results of this study led to the identification of: (i) the basins with highest susceptibility to flooding; (ii) the conditioning factors that mostly contribute to the formation of floods in each basin;(iii) the impacts of changes in land use on the concentration times and peak discharges, which increase the flood hazard; (iv) the urban growth in the flood ‑prone zones, which in‑creases exposure and the flood risk in the LMa.http://revistas.rcaap.pt/finisterra/article/view/3129/2520floodssusceptibilityconditioning factorsLisbon Metropolitan areadrainage basinsflood‑prone zone |
| spellingShingle | Miguel Leal Catarina Ramos Susceptibility to flooding in northern lisbon metropolitan area natural factors and impacts of changes in land use Finisterra - Revista Portuguesa de Geografia floods susceptibility conditioning factors Lisbon Metropolitan area drainage basins flood‑prone zone |
| title | Susceptibility to flooding in northern lisbon metropolitan area natural factors and impacts of changes in land use |
| title_full | Susceptibility to flooding in northern lisbon metropolitan area natural factors and impacts of changes in land use |
| title_fullStr | Susceptibility to flooding in northern lisbon metropolitan area natural factors and impacts of changes in land use |
| title_full_unstemmed | Susceptibility to flooding in northern lisbon metropolitan area natural factors and impacts of changes in land use |
| title_short | Susceptibility to flooding in northern lisbon metropolitan area natural factors and impacts of changes in land use |
| title_sort | susceptibility to flooding in northern lisbon metropolitan area natural factors and impacts of changes in land use |
| topic | floods susceptibility conditioning factors Lisbon Metropolitan area drainage basins flood‑prone zone |
| url | http://revistas.rcaap.pt/finisterra/article/view/3129/2520 |
| work_keys_str_mv | AT miguelleal susceptibilitytofloodinginnorthernlisbonmetropolitanareanaturalfactorsandimpactsofchangesinlanduse AT catarinaramos susceptibilitytofloodinginnorthernlisbonmetropolitanareanaturalfactorsandimpactsofchangesinlanduse |