Data Collection

Data really powers everything that we do.

Data Collection @ off-Sippikulam, Tuticorin

Dr. S. Sakthivel Murugan, Prof. and Dr. K. Muthumeenakshi, along with his team members Mr. M. Vimal Raj, Mr. Sabareesan and Dr. Saravanan R, principal, FAHS chettinad & Mr. Sreenivasan collected underwater data using ROVITO-4 ROV and captured the coral reefs data along the coastal area of Off-sippikulam at tuticotin, from 15th- 16th March 2025.

ROV Testing @ off-Kalpakkam

Mr. M. Vimal Raj, tested ROVITO-4 ROV, along the coastal area of Off-Kalpakkam on 8th March 2025.

Using Sagar Manjusha

Dr. S. Sakthivel Murugan, Asso. Prof. along with his team members M.Vimal Raj, Sairithvik and Rahul collected underwater data using Side Scan Sonar (SSS), which captures the structure of the sea-bed using the towfish connected with ORV Sagar Manjusha from Ministry of Earth Sciences for sea bed mapping along the coastal area of Off-Mahabhalipuram, from 10th May- 13th May. 2023.

Data Collection using Side Scan Sonar (SSS)

SSS Deployment Setup

SSS Setup

SSS Data Acquisition

Dr. S. Sakthivel Murugan, Asso. Prof. along with his team members R.Logeswaran, M.Somasekar, M.Vimal Raj, S.Swathi, M.Dhana lakshmi and B.Arunkumar collected underwater data using Multi-Beam Echo Sounder (MBES) which captures the structure of the sea-bed mounted at the bottom of ORV Sagar Manjusha from Ministry of Earth Sciences for various studies along the coastal areas of Off-Chennai, Off-Mettukuppam, Off-Mahabhalipuram, Off-Off-Kalpakkam from 29th Aug - 2nd Sep. 2018.

Data Collection using Multi-Beam Echo Sounder System (MBES)

MBES system

Discussion on Survey planning with NIOT Surveyor

Monitoring of Data Collection using MBES

Display of MBES data collection

Data Collection using Conductivity Temperature Depth (CTD) sensor

Data Collection using Water Sampler

Data Collection using Grab Sampler

Using Sagar Purvi

Dr. S. Sakthivel Murugan, Asso. Prof. along with his team members G.Annalakshmi, R.Logeswaran, M.Somasekar and Sneha collected underwater data along with NIOT using the ship Sagar Purvi from Ministry of Earth Sciences for various studies along the coastal areas of Off-Chennai, Off-Mahabhalipuram, Off-Kalpakkam, Off-Pondicherry, Off-Cuddalore and Off-Poompuhar from 6th – 8th Aug. 2017.

Deployment of six channel hydrophone array and data collection on board Sagar Purvi

Deployment of CTD and Grab Collector

Deployment and collection of Water Sampler

Students @ ICMAM Lab, NIOT testing sediment samples for Geo-inversion studies

Testing of Side Scan Sonar (SSS)

Dr. S. Sakthivel Murugan, Asso. Prof. , Mr. M. Vimal Raj (Research Scholar), Ms. S. Mary Cecilia (Research Scholar), Ms. G. Annalakshmi (Research Scholar) and Ms. M. Dhana Lakshmi (Research Scholar) tested the Side Scan Sonar at SSN Well on 25th March 2022.

Dr. S. Sakthivel Murugan, Asso. Prof. , Mr. M. Vimal Raj (Research Scholar), Ms. S. Mary Cecilia (Research Scholar), Ms. G. Annalakshmi (Research Scholar), Ms. S.Swathi (Research Scholar) and Ms. M. Dhana Lakshmi (Research Scholar) deployed the Side Scan Sonar at UWARL Test Tank on 21st March 2022.

Deployment of Underwater Drone @ Various Locations

Mr. M. Vimal Raj (Research Scholar), Ms. M. Dhana Lakshmi (Research Scholar) and Mr.Ramnath (UG-Student) along with scuba divers deployed the Underwater Drone with GoPro Underwater Camera at Kasimedu Fishing harbour (lat. 13° 13'N and long. 80° 30'E) on 10th March 2022

Dr. S. Sakthivel Murugan, Asso. Prof. , Mr. M. Vimal Raj (Research Scholar), Ms. S. Mary Cecilia (Research Scholar), Mr. M. Somasekar (Research Scholar), Mr. R. Logeshwaran (Research Scholar), Mr. K. Balaji (Research Scholar) and Ms. M. Dhana Lakshmi (JRF/Research Scholar) deployed the Underwater Drone at various locations between Dec 2020 and Aug 2021

On 14th August 2021, captured underwater images near Chengalpattu lake at 12.71° N 79.98° E

On 9th Dec 2020 and 2nd Aug 2021, the drone was deployed on aquaculture tank at 12.81° N 80.24° E

On 14th Dec 2020, at 12.79° N 80.21° E

On 15th Dec 2020, at 12.80° N 80.24° E

On 16th & 18th Dec 2020 (12.76° N 80.24° E)

On 14th Dec 2020 (12.83° N 80.15° E)

On 19th Dec 2020 (12.77° N 80.18° E)

Testing of Underwater Drone

Dr. S. Sakthivel Murugan, Asso. Prof. , Mr. M. Vimal Raj (Research Scholar), Ms. S. Mary Cecilia (Research Scholar) and Ms. M. Dhana Lakshmi (JRF/Research Scholar) tested the Underwater Drone at SSN Fountain on 28th Nov. 2020.

Primary Qualitative Optical Underwater Data

M.Vimal Raj, S. Mary Cecilia and Sukanthi Kannan, on 5th March 2020 endeavored to get underwater images from the backwaters near kovalam (lat. 12° 46'N and long. 80° 18'E)

Underwater Image collection for image enhancement . The devices that were used are HeroGoPro8 for capturing videos , endoscope borescope 2.0MP camera with USB and 50ft semi rigid cable finally a Laptop for on board monitoring.

M.Vimal Raj, G.Annalakshmi and S. Mary Cecilia, on 6th March 2020 strived to capture underwater images from a lake at 13.1079° N lat and 80.1059° E long

On-Shore data collection @ Mahabalipuram

A team of Image Processing research scholars G.Annalakshmi, M.VimalRaj, M.Dhanalakshmi and S.Mary Cecilia, undertook a data collection expedition to Mahabalipuram to collect the images of the ancient structures at Shore Temple, Pancha Rathas and Arjuna’s Penance on the 28th of November 2019.

Cameras used are NIKON COOLPIX S6100 and NIKON D5200 . The videos and images were captured with a view to study the structures and textures of the monument.

Testing of ROV @ Pondicherry

Dr. S. Sakthivel Murugan, Asso. Prof. and Vigneshwar Veeravagu, II Year/Mech took part in the testing of ROV arranged by Hexiqon Technologies at Pondicherry on 10th Apr. 2019.

Ambient noise Data collection @ Offshore, Chennai.

A set of ambient noise data was collected at off shores, Chennai using the vertical linear array of hydrophones deployed at various locations at 15 m depth, off shores Chennai. The data were collected at a wind speed of 2m/s to 7m/s.