Post Ockhi, water resources department studies erosion impact

| TNN | Dec 14, 2017, 11:19 IST
Representative ImageRepresentative Image
PANAJI: The state's battered coastline suffered some more stress during the very severe cyclonic storm whose impact was accentuated by the higher range of the high tide during full moon, even as water resources department (WRD) is assessing the gale-induced damage.

The small beach of Nerul in Bardez, Morjim in Pernem, Cacra in St Cruz, Tiswadi and Nuem-Canaguinim in Quepem are some of the stretches that have been affected by the erosion during the sea ingress for three to four days, as the storm crossed off the Goa coast towards north.

"We are assessing the effect of the cyclonic storm, as some stretches have undergone some stress," S T Nadkarni, chief engineer, WRD said.

As per figures quoted by the national centre for sustainable coastal management (NCSCM) in a study of carrying capacity of beaches of Goa, 21.0 km of the 105-km coastline is affected by low erosion, 0.31 km by higher erosion and 3.97 km by medium type of erosion.

WRD had undertaken anti-sea erosion measures more than five years back under a pilot project at Coco beach, Nerul. Central power and water research institute (CPWRI), a central government agency, had carried out modeling on wave length, height and other dynamics and suggested site specific measures such as use of revetment, geo tubes and tetra pods to soften the impact of erosion.

WRD has also noticed that old walls in private properties have also collapsed during the recent storm in early December.

"These couldn't withstand the impact of the sea-level rise," Nadkarni said.


Human intervention on sand dunes due to tourism activities is one of the reasons attributed to the detrimental effect through erosion. "Over crowding of beaches, roads over dunes, trampling of dune vegetation all cause irreversible damage to dunes. Erosion starts when bare dunes are left at the mercy of violent waves," Antonio Mascarenhas, a former scientist of national institute of oceanography (NIO) had said in a study.


But among 11 other coastal states, Goa features as the state which has the lowest percentage (17.39%) of its shore length under erosion and the highest percentage (52.37%) of a stable shoreline.


This was according to a study 'Assessment of Coastal erosion along the Indian coast on 1:25,000 scale using satellite data of 1989-1991 and 2004-2006 time frames' published in the latest edition of Current Science..



Get latest news & live updates on the go on your pc with News App. Download The Times of India news app for your device.

From around the web

1-yr-old in Coma Stage Due to Brain Disease.

Milaap

11 amazing hidden iPhone tricks.

TechShout.com

Ready to Move in 3BHK Apts. near Siruseri IT

Provident

More from The Times of India

Watch: Cadets perform passing out parade at IMA

Did Salman Khan body shame Vidya Balan on his show?

Row erupts after Jharkhand MLA organises kissing contest

From the Web

More From The Times of India