Abstract
Dynamic interaction between waves and topographic generate flow dynamics that affect Lhonga coast, Aceh Besar. To analyze the dynamics, the numerical model of currents induced by wave was developed with the explicit finite difference approach method. The model in this study was tested by verifying the result directly with the field data obtained previously. The model is applied in Lhoknga coast of Aceh Besar district with the aim to study how the dynamics of hydro-oceanography as one of the elements to support the preservation of the marine resources of the area. Based on the simulation, the results obtained that the wave occurred in Lhoknga beach relatively small with the dominant direction to the northwest and the maximum of wave height occurs during the high tide condition. The result also informed that the distribution of longshore currents is generally moving from west to east along the coast. The direction of dominant current occurs in the area of 10-15 meters from the shore with an average depth of 6 meters. Keywords: wave flow, flow dynamics, beach, hydro-oceanography
Highlights
Sea and coastal area play an important role in supporting human life, such as the utilization of marine resources as a source of food, medical supplies, recreation and transportation
Beach as a boundary between ocean and land is always changing dynamically both space and time (Eckman et al, 2008; Anoop and Kumar, 2014). These dynamic processes are influenced by a combination of several forces acting on the shore such as tides, wind, topography and geographical conditions (Rizal et al, 2013)
Field measurement at left corner point on Figure 2 of wave elevation and wave period taken during the high tide and low tide condition are shown on Figure 3 and 4 respectively
Summary
Sea and coastal area play an important role in supporting human life, such as the utilization of marine resources as a source of food, medical supplies, recreation and transportation. Research on marine over recent decades has become more underway which aims to support the use and preservation of the sea and coastal area. Beach as a boundary between ocean and land is always changing dynamically both space and time (Eckman et al, 2008; Anoop and Kumar, 2014). These dynamic processes are influenced by a combination of several forces acting on the shore such as tides, wind, topography and geographical conditions (Rizal et al, 2013). The dynamics of tides create dynamic tidal currents, wind initiates high and low waves, and topographic and geographic conditions result in beach dynamics (Chen and Yuan, 2015), all of which are interesting to study
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
