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A broad survey done by the Department of Meteorology and Oceanography of Andhra University, successful collaboration with Indian Space Research Organisation (ISRO) and National Centre for Earth Science Studies (NCESS), has highlighted the urgent request for robust, technological and data-driven hazard mitigation strategies to safeguard the beachgoers successful Visakhapatnam from the rip existent hazards.
The survey was conducted by Chintam Venkateswarlu of the Department of Meteorology and Oceanography, AU, nether the guidance of Prof. C.V. Naidu.
For tourists and citizens who sojourn the scenic coastlines of Visakhapatnam, the waters of RK Beach and Rushikonda Beach whitethorn conceal a unsafe and often overlooked hazard: rip currents. These are strong, constrictive channels of h2o that travel rapidly seaward done the surf zone, carrying h2o from the shoreline backmost into deeper offshore regions.
One of the top challenges successful preventing rip-current-related accidents is that these currents are often hard for the nationalist to identify.
How to place rip current
In galore cases, rip currents look arsenic darker patches of h2o wherever waves interruption little often oregon not astatine all, creating seemingly calmer areas betwixt lines of breaking waves. Such deceptively calm patches tin pull swimmers who are unaware that they are really locations of almighty offshore-flowing currents.
This caller probe has brought this hidden information into focus, identifying 122 high-risk days annually erstwhile these currents are astir apt to occur.
“Relying solely connected accepted information measures is nary longer adequate. There is simply a pressing request to integrate rigorous technological probe into mundane formation absorption protocols”Chintam VenkateswarluDepartment of Meteorology and Oceanography, AU
“Relying solely connected accepted information measures is nary longer adequate. There is simply a pressing request to integrate rigorous technological probe into mundane formation absorption protocols,” Mr. Venkatesh told The Hindu.
The investigative squad successfully combined precocious coastal video monitoring exertion with extended numerical modelling. This methodology enabled the researchers to behaviour astir 2,300 simulations—800 specifically for RK Beach and 1,500 for Rushikonda Beach—to analyse however variations successful question heights, question periods, question directions, and tidal conditions straight power the procreation of rip currents.
The findings from these simulations are wide and actionable: question absorption is the superior origin dictating the enactment of these hazards.
The information bespeak that rip currents are highly apt to hap erstwhile question directions scope betwixt 110° and 180° astatine RK Beach, and betwixt 40° and 170° astatine Rushikonda Beach. Beyond question direction, the probe confirms that the circumstantial underwater seabed topography—often referred to arsenic bathymetry—acts arsenic a important catalyst successful the procreation and intensification of these currents.
Given the past of implicit 400 documented drowning incidents astatine these 2 iconic metropolis destinations, the mapping of persistent ‘hotspot zones’ provides a vital, evidence-based instrumentality for the municipal authorities.
By strategically deploying this caller data, the section medication tin displacement its absorption from reactive and ad-hoc information measures towards proactive and technological interventions.
Recommended actions see the precise, targeted placement of imperishable informing signboards and the tactical positioning of trained lifeguard teams, peculiarly during the circumstantial days and conditions predicted to beryllium high-risk.
