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Coastal Evolution at Nha Trang Bay, Vietnam

Dahlström, Anna LU and Böös, Susanna LU (2015) VVR820 20151
Division of Water Resources Engineering
Abstract
Over the past years the southern beach of Nha Trang, located in the south central of Vietnam, has started to indicate signs of erosion in the northern part. As the beach plays an important role for this touristic hotspot, the fear that the erosion will become severe has been raised. The limited knowledge and previous performed studies of the general coastal processes affecting the shoreline evolution has motivated this master thesis and abovementioned were investigated through field trips, data collection and simulations. Data and samples of sediment, beach profiles, shoreline position, wave and current properties and longshore sediment transport were collected. The model EBED was used to simulate the nearshore wave climate from deep water... (More)
Over the past years the southern beach of Nha Trang, located in the south central of Vietnam, has started to indicate signs of erosion in the northern part. As the beach plays an important role for this touristic hotspot, the fear that the erosion will become severe has been raised. The limited knowledge and previous performed studies of the general coastal processes affecting the shoreline evolution has motivated this master thesis and abovementioned were investigated through field trips, data collection and simulations. Data and samples of sediment, beach profiles, shoreline position, wave and current properties and longshore sediment transport were collected. The model EBED was used to simulate the nearshore wave climate from deep water wave data for the previous 25 years. The resulting wave climate was further used as input data to the shoreline evolution model GENESIS, which calculated the net transport rate and the shoreline evolution. The field measurements and data analysis indicated a relatively stable shoreline, except for in the northern part where the retreat of the shoreline was visible. Beach nourishment would improve the condition of the northern part of the beach but required renourishment every second year. The wave climate in the bay is highly affected by the northeast monsoon, which generates a longshore sediment transport to the south, and the sheltering surroundings with the many islands and mountains. (Less)
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author
Dahlström, Anna LU and Böös, Susanna LU
supervisor
organization
course
VVR820 20151
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Nha Trang, coastal evolution, longshore sediment transport, EBED, GENESIS
report number
TVVR 15/5006
ISSN
1101-9824
language
English
id
7448002
date added to LUP
2015-06-26 14:40:46
date last changed
2015-06-26 14:40:46
@misc{7448002,
  abstract     = {Over the past years the southern beach of Nha Trang, located in the south central of Vietnam, has started to indicate signs of erosion in the northern part. As the beach plays an important role for this touristic hotspot, the fear that the erosion will become severe has been raised. The limited knowledge and previous performed studies of the general coastal processes affecting the shoreline evolution has motivated this master thesis and abovementioned were investigated through field trips, data collection and simulations. Data and samples of sediment, beach profiles, shoreline position, wave and current properties and longshore sediment transport were collected. The model EBED was used to simulate the nearshore wave climate from deep water wave data for the previous 25 years. The resulting wave climate was further used as input data to the shoreline evolution model GENESIS, which calculated the net transport rate and the shoreline evolution. The field measurements and data analysis indicated a relatively stable shoreline, except for in the northern part where the retreat of the shoreline was visible. Beach nourishment would improve the condition of the northern part of the beach but required renourishment every second year. The wave climate in the bay is highly affected by the northeast monsoon, which generates a longshore sediment transport to the south, and the sheltering surroundings with the many islands and mountains.},
  author       = {Dahlström, Anna and Böös, Susanna},
  issn         = {1101-9824},
  keyword      = {Nha Trang,coastal evolution,longshore sediment transport,EBED,GENESIS},
  language     = {eng},
  note         = {Student Paper},
  title        = {Coastal Evolution at Nha Trang Bay, Vietnam},
  year         = {2015},
}