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Evaluation of oil spill trajectory model with the observed SVP drifter track

Prasad, SJ and Balakrishnan Nair, TM and Rahaman, H and Joseph, S and Yatin, G (2017) Evaluation of oil spill trajectory model with the observed SVP drifter track. Technical Report. Indian National Centre for Ocean Information Services (INCOIS), Hyderabad.

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Abstract

Indian National Centre for Ocean Information Services (INCOIS) collaborated with Indian Coast Guard(ICG) and conducted Surface Velocity Program (SVP) drifter experiment at Mumbai High region for evaluating the operational oil spill trajectory model. INCOIS adopted General National Oceanic and Atmospheric Administration(NOAA) Operational Modelling Environment(GNOME) from NOAA and customised it in diagnostic mode for Indian ocean. GNOME was operationalised during May 2014. The objective of this experiment is to compare the drift pattern obtained from an oil spill trajectory model with the observed drifter track. SVP drifter was procured from M/s. Pacific Gyre, USA. It gives the Lagrangian trajectory path over the ocean. It was deployed by officials of Indian Coast Guard at Mumbai High region on 20 November 2016,12.45 hrs at 72.2295º E, 18.91035º N off Mumbai. It gave its drifted path along the west coast of India for ten days, before it beached near Diu on 3 December 2016.This observed track was considered for comparing the simulated positions obtained from GNOME when forced with currents of different ocean general circulation models. The results show that the positions of the drifter obtained, while forced with analysed currents of GODAS -MOM4p1 (GM4p1) and Hybrid Co-ordinate Ocean Model (HYCOM) are found to be in better agreement with the actual position of the drifter.

Item Type: Monograph (Technical Report)
Additional Information: Copyright of this report belongs to Indian National Centre for Ocean Information Services (INCOIS), Hyderabad
Uncontrolled Keywords: Drifter;Tracking;Oil Spill;Surface currents
Subjects: Oceanography > oceanography
Depositing User: INCOIS Library
Date Deposited: 15 Dec 2017 05:51
Last Modified: 15 Dec 2017 05:51
URI: http://moeseprints.incois.gov.in/id/eprint/4425

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