| Titre : | Impacts of urbanization and climate changes on the hydrological cycle |
| Auteurs : | Sana Ghezali, Auteur ; Boukhemacha, Mohamed Amine, Directeur de thèse |
| Type de document : | document électronique |
| Editeur : | [S.l.] : [s.n.], 2026 |
| Format : | 1 fichier PDF (11 Mo) / ill. |
| Note générale : |
Mode d'accès : accès au texte intégral par intranet.
Thèse de Doctorat : Hydraulique : Alger, Ecole Nationale Polytechnique : 2026 Bibliogr. p. 218 - 254 |
| Langues : | Anglais |
| Index. décimale : | D001526 |
| Tags : | Urbanization Climate change Hydrological cycle Water resources |
| Résumé : | Rapid urbanization and climate change are key drivers influencing the water cycle, especially in urban areas. This thesis investigates the impacts of urbanization and climate change on the hydrological cycle of Algiers over the period 1986–2100. It provides a comprehensive set of findings through integrating remote sensing, urban growth modeling (CA-ANN), climate projections (CMIP6 under the SSP2-4.5 and SSP5-8.5 scenarios), and hydrological modeling (SCS-CN). Among these findings, the thesis develops a threshold-based landuse/land-cover (LULC) classification approach using seasonal thresholds derived for selected multispectral indices. It also projects future urbanization trends, revealing an increase in urban areas at the expense of other land-cover types. The outcomes also show that the future projections of hydrological components (initial abstraction (Ia), runoff (Q), and infiltration/potential natural groundwater recharge from precipitation (F)) indicate a declining trend throughout 2017–2100 under the combined impacts of climate change and urbanization, for both SSP2-4.5 and SSP5-8.5 scenarios. The analysis further reveals a strong linear relationship between precipitation and each component (Ia, Q, and F) across the period 1986–2100. Under SSP2-4.5, precipitation is partitioned into approximately 53.4% ± 6.94% for Ia, 19.1% ± 3.45% for Q, and 27.5% ± 3.82% for F, whereas SSP5-8.5 shifts these proportions to 58.2% ± 7.34%, 17.1% ± 3.71%, and 24.7% ± 3.97% respectively. The findings reveal that Algiers is expected to experience increasing hydrological stress under future climate and urbanization scenarios, emphasizing the need for sustainable water resource management and integrated urban planning. |
Exemplaires (1)
| Code-barres | Cote | Support | Localisation | Section | Disponibilité | Spécialité | Etat_Exemplaire | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| T000497 | D001526 | Ressources électroniques | Bibliothèque centrale | Thèse de Doctorat | Disponible | Hydraulique | En Traitement |
