This chapter deals with the use of different sources of data (field surveys with total station and GPS, aerial photographs and topographic maps) as well as their integrated digital treatment in a GIS context to quantify the morphological changes in a ridge of coastal dunes in the south-west of Spain. The results show very high and incrementing rates of foredune retreat, significant losses of foredune surface and a clear negative sedimentary balance (lowering and inland migration) in its recent evolution (1979–1996). Two processes can explain this evolution; (i) marine erosion and (ii) the reactivation of aeolian deflation. The combined use of GPS (code/phase) and softcopy photogrammetry seem to provide the best for monitoring future changes.
Keywords
- Coastal Dune
- Dune System
- Photogrammetric Engineer
- Seaward Side
- Littoral Drift
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.