Page 244 - Çevre Şehir İklim İngilizce - Sayı 3
P. 244

Evaluation of Surface Runoff Risk in The Frame of Landscape Pattern:
                                The Case of Kastamonu Central District

            In this assessment, high surface runoff risk values were assigned to the classes
            that create artificial surfaces (buildings, roads, etc.) while low surface runoff
            risk  values  were  defined  for  areas  covered  with  qualified  vegetation  cover
            (such as forests) (Table 4). The LU/LC layer was generated from the “Urban
            Atlas” data belonging to the Central district of Kastamonu (URL-5).


































                 Figure 7. Map of Kastamonu Central district classified according to the CORINE system
                                            (URL-5).
              Table 4. The surface runoff risk values assigned to the Corine LU/LC classes taking
                              into consideration the permeability levels:

              CORINE                Scope of the class               Risk value
               Code
              11100            Continuous urban fabric (>80%)           5
              11210       Discontinuous dense urban fabric (50%-80%)    5
                          Discontinuous medium-density urban fabric
              11220                                                     4
                                       (30%-50%)
              11230         Discontinuous low-density urban fabric      3
              11240     Discontinuous very low-density urban fabric (< 10%)  2
              11300                 Isolated structures                 5
              12100            Industrial and commercial units          5


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