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Detection of Submerged Harbour Using GEBCO and Mbes MBES, in the Offshore Region of Ancient Port City Poompuhar, South India


Affiliations
1 Department of Remote Sensing, Bharathidasan University, Tiruchirappalli 620 023, India
2 National Institute of Ocean Technology, Velacherry–Tambaram Main Road, Pallikaranai, Chennai 600 100, India
 

Similar to several ancient coastal/port cities of the world, the Indian subcontinent too had a number of them. The Poompuhar is one such port city established at the mouth of river Cauvery by the Chola dynasty 2000 years ago according to the literature and history. However, while later archaeological studies indicate its spread 20 km along the coast and up to 8 km inside the Bay of Bengal sea, the recent studies indicated its initial establishment over one of the Cauvery’s oldest deltas of 11,000-15,000-year-old at 30 km inside sea and the later shift to the present location. Now, the GEBCO-2019 and MBES based present study revealed the presence of a harbour and related structures in the above delta, resembling 6000-2000- year-old harbours of the world and the knowledge of the people in construction technology and marine environment.

Keywords

Ancient Port City, Offshore Region, Seabed Topography, Submerged Harbour.
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  • Detection of Submerged Harbour Using GEBCO and Mbes MBES, in the Offshore Region of Ancient Port City Poompuhar, South India

Abstract Views: 392  |  PDF Views: 141

Authors

S. M. Ramasamy
Department of Remote Sensing, Bharathidasan University, Tiruchirappalli 620 023, India
J. Saravanavel
Department of Remote Sensing, Bharathidasan University, Tiruchirappalli 620 023, India
K. Palanivel
Department of Remote Sensing, Bharathidasan University, Tiruchirappalli 620 023, India
C. J. Kumanan
Department of Remote Sensing, Bharathidasan University, Tiruchirappalli 620 023, India
D. Rajasekhar
National Institute of Ocean Technology, Velacherry–Tambaram Main Road, Pallikaranai, Chennai 600 100, India

Abstract


Similar to several ancient coastal/port cities of the world, the Indian subcontinent too had a number of them. The Poompuhar is one such port city established at the mouth of river Cauvery by the Chola dynasty 2000 years ago according to the literature and history. However, while later archaeological studies indicate its spread 20 km along the coast and up to 8 km inside the Bay of Bengal sea, the recent studies indicated its initial establishment over one of the Cauvery’s oldest deltas of 11,000-15,000-year-old at 30 km inside sea and the later shift to the present location. Now, the GEBCO-2019 and MBES based present study revealed the presence of a harbour and related structures in the above delta, resembling 6000-2000- year-old harbours of the world and the knowledge of the people in construction technology and marine environment.

Keywords


Ancient Port City, Offshore Region, Seabed Topography, Submerged Harbour.



DOI: https://doi.org/10.18520/cs%2Fv119%2Fi3%2F526-534