Multiobjective Algorithm-Based Pareto Optimization for Modelling Trajectory Movement of MH370 Debris

Multiobjective Algorithm-Based Pareto Optimization for Modelling Trajectory Movement of MH370 Debris

DOI: 10.4018/978-1-7998-1920-2.ch013

Abstract

It is well-known that the altimeter satellite data can model the global world ocean circulation. In this view, the ocean dynamic circulation altimeter data is required to understand the drift movement of MH370 across the Indian ocean. The integration between the Volterra-Lax-Wendroff algorithm and Pareto optimal algorithm is used to investigate the dynamic movement of MH370 debris over annual current circulation across the Indian Ocean. This chapter shows that the maximum value of the hit-rate (HR) is 160%, which is occurring with an extreme rapidity of eddy current of 0.65 m/s. In conclusion, it is a great impossibility for the existence of the debris along Mozambique, Reunion Island, Madagascar coastal waters, and Mossel Bay, South Africa, as proven by the Pareto optimization.
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Altimeter Theory For Measuring Sea Surface Current

The altimeter satellite data have been identified as an effective approach for modelling coastal hydrodynamic components such as ocean surface currents and wave patterns (Marghany et al., 2008). In this perspective, the altimeter satellite data are debatably the furthermost beneficial of totally the satellites for determining ocean surface currents. Even though radar altimeter data accessibility are nevertheless fairly brief in contrast to sets of tidal gauge information. This approach appears reasonably talented for the sea level investigation problems due to the fact it affords sea stage dimension with massive coverage. With an accuracy of about 1 mm/year of quantity, worldwide sea level variations can be acquired (Marghany, 2009). Accordingly, the algorithms that have been implemented to acquire the ocean surface current are grounded on radar pulse backscatter from the sea surface(Glenn et al. 1991). Consistent with Robinson (2004), a satellite altimeter considers as a nadir-viewing radar, which emanates a pulse within traveling period, and the backscattering signal from the sea surface. In this existence, the travel period (t) can be adapted to a distance when the delay pulses can be calculated (Figure 1). Martins et al. (2002) mentioned that the peak of the sea surface can be determined employing combining this distance with the location of the satellite that determined with the aid of precision orbit dedication and correcting for the earth and ocean tides and atmospheric loading.

Figure 1.

The mechanism of the altimeter to measure sea surface height

978-1-7998-1920-2.ch013.f01

The altimeter range (R)from the satellite to sea surface level is estimated from the round –trip travel time by equation 13.1:

R = 0.5ct – ΣΔRj(13.1)

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