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Sediment Transport in the Port of Talara, Peru

Nilsson, Graciela LU (2010) In TVVR10/? VVR820 20101
Division of Water Resources Engineering
Abstract
Depth data and bathymetry maps are used to analyze their association with tides, winds, currents and wave conditions in the port of Talara, at the coast of northern Peru. The objective is to investigate the processes that influence the sediment transport in the port. The sedimentation affects the saltwater pumps for fire fighting, obstructing them from delivering water since their operational water depth is not reached. In addition sedimentation sometimes complicates the arrival of vessels to the loading wharf. The sediment rates along the study coast that can be transported into the port by longshore currents produced by southerly and south¬westerly waves are analyzed with the help of the GENESIS Numerical Model. The wave statistic used... (More)
Depth data and bathymetry maps are used to analyze their association with tides, winds, currents and wave conditions in the port of Talara, at the coast of northern Peru. The objective is to investigate the processes that influence the sediment transport in the port. The sedimentation affects the saltwater pumps for fire fighting, obstructing them from delivering water since their operational water depth is not reached. In addition sedimentation sometimes complicates the arrival of vessels to the loading wharf. The sediment rates along the study coast that can be transported into the port by longshore currents produced by southerly and south¬westerly waves are analyzed with the help of the GENESIS Numerical Model. The wave statistic used for the modeling is obtained in the KNMI/ERA-40 Wave Atlas. The accuracy of the atlas is found acceptable after a comparison between Wave Atlas statistic from a nearby ocean area and authentic data from measurement stations within the same area. The data analyzed in the present study suggests that the sediment transport in the port of Talara is driven by the combination of waves and tides, local bathymetry and the impact of the sea¬wall. Furthermore, data analyses show that periodically change of sea bottom occurs at the dolphin sites along the pier, this process mainly described the characteristic of a cross-shore sediment transport. According to the results obtained with “GENESIS” the longshore sediment transport rates along the study coast are too low to significantly influence the inlet of sediment into the port and thus the periodical changes of sea bottom are not affected. The analysis of the sedimentation and erosion trends along the pier indicate that depth conditions would be suitable for the operation of saltwater pumps for fire fighting, 70 m farther out from their present location. As results depend on the availability and quality of implemented data, it is noted that there is lack of data for this region and therefore further wave and currents measurements are recommended in order to obtain more reliable results. (Less)
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author
Nilsson, Graciela LU
supervisor
organization
course
VVR820 20101
year
type
H3 - Professional qualifications (4 Years - )
subject
keywords
Peru, KNMI/ERA-40 Wave Atlas, GENESIS numeri¬cal model, longshore sediment transport, cross-shore sediment transport
publication/series
TVVR10/?
report number
10/?
ISSN
1101-9824
language
English
additional info
Examiner: Magnus Larson
id
1691190
date added to LUP
2010-10-07 17:48:49
date last changed
2019-03-27 11:37:23
@misc{1691190,
  abstract     = {Depth data and bathymetry maps are used to analyze their association with tides, winds, currents and wave conditions in the port of Talara, at the coast of northern Peru. The objective is to investigate the processes that influence the sediment transport in the port. The sedimentation affects the saltwater pumps for fire fighting, obstructing them from delivering water since their operational water depth is not reached. In addition sedimentation sometimes complicates the arrival of vessels to the loading wharf. The sediment rates along the study coast that can be transported into the port by longshore currents produced by southerly and south¬westerly waves are analyzed with the help of the GENESIS Numerical Model. The wave statistic used for the modeling is obtained in the KNMI/ERA-40 Wave Atlas. The accuracy of the atlas is found acceptable after a comparison between Wave Atlas statistic from a nearby ocean area and authentic data from measurement stations within the same area. The data analyzed in the present study suggests that the sediment transport in the port of Talara is driven by the combination of waves and tides, local bathymetry and the impact of the sea¬wall. Furthermore, data analyses show that periodically change of sea bottom occurs at the dolphin sites along the pier, this process mainly described the characteristic of a cross-shore sediment transport. According to the results obtained with “GENESIS” the longshore sediment transport rates along the study coast are too low to significantly influence the inlet of sediment into the port and thus the periodical changes of sea bottom are not affected. The analysis of the sedimentation and erosion trends along the pier indicate that depth conditions would be suitable for the operation of saltwater pumps for fire fighting, 70 m farther out from their present location. As results depend on the availability and quality of implemented data, it is noted that there is lack of data for this region and therefore further wave and currents measurements are recommended in order to obtain more reliable results.},
  author       = {Nilsson, Graciela},
  issn         = {1101-9824},
  keyword      = {Peru,KNMI/ERA-40 Wave Atlas,GENESIS numeri¬cal model,longshore sediment transport,cross-shore sediment transport},
  language     = {eng},
  note         = {Student Paper},
  series       = {TVVR10/?},
  title        = {Sediment Transport in the Port of Talara, Peru},
  year         = {2010},
}