Identification of Coastal Erosion Causes in Matanchen Bay, San Blas, Nayarit, Mexico
Por:
Martinez, REM, Silva, R, Mendoza, E
Publicada:
1 ene 2014
Resumen:
This work presents an analysis of the erosion processes in Matanchen Bay
based on the available historical records; the possible causes were
identified and discussed. The bay is located on the Pacific coast of
Nayarit state, Mexico; its northern tip is a highly dynamic system that
has undergone intense morphological modifications over the last 80
years. At the beginning of the 1940s an unexplained growth in the beach
at the northern tip of the bay was observed, while 40 years later, and
up to date, erosion processes began adversely affecting small businesses
in the area. The primary causes of the erosion are the anthropogenic
modifications in the bay and its surroundings, which include the
construction of a hydroelectric dam system, new transport
infrastructure, tourist facilities, a harbor and several dredging works
in the existing port. In this paper the evolution of the coastline at
Matanchen Bay and its surroundings is analyzed for the first time and
the actual coastline is compared to that predicted under the assumption
that no countermeasures against the erosion are adopted.
Filiaciones:
Martinez, REM:
Univ Nacl Autonoma Mexico, Inst Ingn, Mexico City 04510, DF, Mexico
Silva, R:
Univ Nacl Autonoma Mexico, Inst Ingn, Mexico City 04510, DF, Mexico
Mendoza, E:
Univ Nacl Autonoma Mexico, Inst Ingn, Mexico City 04510, DF, Mexico
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