Influence of a fishing harbour on coastal geomorphology of the southwest coast of India and predictions of its future trends S.G. Dhanil Dev, V. Deepchand, M.S. Anoop, P.K. Krishnaprasad, Mohammed Noohu Nazeer, Yogendra Singh, S. Arjun, R.S. Prasanth Geosystems and Geoenvironment, 2023 In the present study, we estimated the shoreline change along Ponnani Fishing Harbour (PFH), the coastal part of Malappuram, India, using the Digital Shoreline Analysis System (DSAS) version 5.0. We also assessed the land use and land cover (LULC) changes in the gateway of Ponnani Fishing Harbour (PFH) and its surrounds using Geographical Information System (GIS) and Remote Sensing (RS) techniques. LULC estimated that vegetation cover was more in 2004 than in 2020, supported by the values shown by VSB (Vegetation with Scattered Built-up) and BSV (Built-up with Scattered Vegetation) show a significant areal change in the study area. On the comparison of erosion and accretion in the two zones of the study area, erosional activities are dominant in Ponnani, which is in the southern part. Based on the Linear Regression Rate (LRR) values, the maximum erosion rate was -7.41 m/year at Ponnani. The southern sector is also undergoing a maximum accretion rate of 8.11 m/year in the Ponnani Harbour region. The End Point Rate (EPR) estimated similar trends of the highest erosion -43.24 m/year and highest accretion, 37.34 m/year rates in the southern sector. The Net Shoreline Movement (NSM) values demonstrate that the shoreline retreated by -285.9 m, and the shoreline accreted by 132.32 m at the Ponnani Harbour area over the last three decades. The Kalman filter model predicted that the shoreline at Ponnani and Puthuponnani beaches might experience further erosion of approximately a 100-metre shift by 2030. An increase in the erosion rate could erode another 140 m from the shoreline by 2040. The Ponnani and Puthuponnani beach extents must be considered high erosion risk zones in the perspective of the estimated results. This assessment indicates that the southern stretch of the area under the study of the PFH coastline is eroding. The significant changes in land use and land cover that have been seen over the past few years following the construction of PFH are expected to be the main cause of the severe loss of the coast in the southern part. The main reason for erosion in PFH would be construction operations that put pressure on the coastline side. The limited supply of sand used to replenish the coast naturally causes shoreline change due to the large drop in sediment load from the river, which is evident by the shrinking of the braided island size. The methods employed in this study and the results might help manage the PFH coast sustainably. The outcomes of this assessment suggest that similar studies should be conducted in other regions of India's western coastline to understand the shoreline evolution and develop a better coastal management strategy.
Observation on Rock Melt Extrusion Occurrence in Southern Part of Tamil Nadu Biju John, Yogendra Singh, D. T. Rao, M. C. Barman, A. P. Pradeepkumar, K. Sajeev Journal of the Geological Society of India, 2021 Abstract Some recent studies have suggested that the phenomenon of Rock Melt Extrusion (RME) observed in the southern part of Peninsular India could be considered as evidence of volcanism. This suggestion raised major concern for the safety of the southernmost nuclear power plant of India located at Kudankulam, Tamil Nadu. As per IAEA guidelines for siting a nuclear facility, the behaviour of volcanic activity, if identified, needs to be considered for an area of 100 km radius. Hence an investigation was carried out to understand the genesis of the RME phenomena in this region. Review of earlier studies indicates that no volcanic rock younger than Deccan Trap volcanism (70-63 Ma) has been reported in the area and also that the area is undergoing compression in the present tectonic set-up. The physical observations support the suggestion that the RME phenomena has resulted from lightning and electrical discharge. For further ascertaining the characteristics of the RME, detailed analyses were carried out on the RME samples. Petrographical observations on the RME samples from Abhishekapatti suggest instant melting and consolidation in soil where bigger grains of quartz were not melted. Geochemical analysis of different portions of RME and the surrounding soil suggests that there is no variation between the two and both are of comparable compositions. The results suggest that the melt was produced instantaneously and has resulted from the superficial melting of soil. The purpose of this article is to make the public aware that the reported incidence of RME in Southern Peninsular India has nothing to do with volcanic activity and is related to lightning and electrical discharge.
Thenmala fault system, Southern India: Implication to neotectonics E. Praseeda, Biju John, C. Srinivasan, Yogendra Singh, K. S. Divyalakshmi, Pijush Samui Journal of the Geological Society of India, 2015 Abstract The Achankovil shear system is one of the major crustal scale structures in Peninsular India. This NW-SE trending shear zone stretches across the Western Ghats for a strike length of 120 km. A number of parallel lineaments demarcate this 15-20 km wide shear zone. Many studies were carried out to understand the origin and delineation of this structure. Low level seismicity reported in this region, however, does not suggest any relation with this shear zone and thus no significant study was carried out to understand its neotectonic behavior. However, there are a couple of faults identified in the southern end of this shear system viz., Thenmala and Thenmala south faults. Even though these faults were demarcated in hilly terrain of Western Ghats, its expression into the plain area east of the mountain terrain were not identified during the earlier studies. The present study however, delineated the signatures of these faults further in the southeast from satellite images. The traces of these faults are observed as multiple slip planes with varying deformation pattern. A group of N-S trending lineaments are also observed in hill ranges. Similarly, N-S trending long persistent vertical joints are observed in the plain area are free from displacement. The traces of NW-SE trending brittle faults observed in these areas crosscut all the joints including the N-S trending vertical ones. These observations suggest that the geomorphic signature associated with Thenmala lineaments may represent the youngest deformation (brittle) of the region.
RECENT SCHOLAR PUBLICATIONS
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Geosystems and Geoenvironment SGD Dev, V Deepchand, MS Anoop, PK Krishnaprasad, MN Nazeer, ... 2023
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Evidence of a damaging paleoearthquake from the southwest India. Y John B. and Singh AES 2022, 138 , 2022 2022
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Attitudes towards video consultation for telepsychiatry services among psychiatrists during the COVID-19 pandemic: An observational study Y Singh, R Innamuri, A Chichra Asian Journal of Psychiatry 62, 102717 , 2021 2021 Citations: 2
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Observation from two NW-SE trending land-ocean structures between Godavari and Mahanadi rivers. Y John B. and Singh International Conference on Recent Advances in Geotechniques EGCON, 156 , 2021 2021
Neotectonic evidences related with the shear zones of southern Peninsular India. Shear Zones and Crustal Blocks of Southern India B John, Y Singh Shear Zones and Crustal Blocks of Southern India 6 (1), 30 , 2020 2020
Response of alluvial river to active faulting example form Peninsular India B John, KS Divyalakshmi, Y Singh, DD SG GEOMORPHOMETRY 2020, 236 , 2020 2020
Tectonic Geomorphology of West Bangalore by analysing the Chick Tore river basin, Karnataka, India, Using ASTER DEM KS Divyalakshmi, Y Singh, B John GEOMORPHOMETRY 2020, 128 , 2020 2020
Suspected signature of active tectonism in Palghat Gap, India Y Singh, B John, KS Divyalakshmi GEOMORPHOMETRY 2020, 155 , 2020 2020
MOST CITED SCHOLAR PUBLICATIONS
Geomorphic observations from southwestern terminus of Palghat Gap, south India and their tectonic implications S Yogendra, J Biju, G GP, G Abhilash, H S, D KS, K Sreekumari Journal of Earth System Science 125 (4), 821-839 , 2016 2016 Citations: 17
Influence of a fishing harbour on coastal geomorphology of the southwest coast of India and predictions of its future trends SGD Dev, V Deepchand, MS Anoop, PK Krishnaprasad, MN Nazeer, ... Geosystems and Geoenvironment 2 (2), 100179 , 2023 2023 Citations: 13
Thenmala fault system, Southern India: implication to neotectonics E Praseeda, B John, C Srinivasan, Y Singh, KS Divyalakshmi, P Samui Journal of the Geological Society of India 86 (4), 391-398 , 2015 2015 Citations: 13
Cochlear implantation in Goldenhar syndrome S Gupta, S Samdani, JK Vaishnav, Y Singh, M Grover Indian Journal of Otolaryngology and Head & Neck Surgery 74 (Suppl 3), 4159-4163 , 2022 2022 Citations: 9
Neurosis meets psychosis: Case series from a tertiary care center in South India SY Dholakia, C Susmita, KD Ranjit, Y Singh, D Braganza Indian journal of psychological medicine 37 (3), 360-363 , 2015 2015 Citations: 6
Use of SRTM data for a quick recognition of active tectonic signatures B John, KS Divyalakshmi, Y Singh, C Srinivasan National Institute of Rock Mechanics, Dept of Engineering Seismology … , 2013 2013 Citations: 6
Evaluation of boosted random forest and multi-objective artificial neural network for the diagnostic severity of chronic kidney disease (CKD) patients Y Singh, M Srivastava, S Mahajan, A Sharma, M Kukreja, S Dev Nanotechnoloy Perceptions 20, 629-38 , 2024 2024 Citations: 5
Seismicity of Kerala: an update B John, R Babu A, S DS, Y Singh, P E, D KS, S Nelliat, P Samui, G GP Recent advances in rock engineering (RARE 2016), 480-483 , 2016 2016 Citations: 5
Flood susceptibility mapping in Kali River Basin, Southern India: A GIS-based analytical hierarchy process modelling A Krishnan, SGD Dev, S Arjun, V Deepchand, Y Singh, E Shaji, ... Results in Earth Sciences 3, 100079 , 2025 2025 Citations: 4
Neuroleptic malignant syndrome in a 15-month-old child: a case report AJ Penugonda, Y Singh, D Kattula, M Bhaskar Journal of clinical psychopharmacology 43 (5), 455-456 , 2023 2023 Citations: 2
Attitudes towards video consultation for telepsychiatry services among psychiatrists during the COVID-19 pandemic: An observational study Y Singh, R Innamuri, A Chichra Asian Journal of Psychiatry 62, 102717 , 2021 2021 Citations: 2
Methods to Quantify the MicroRNA and Study Their Role in Genotoxic Stress P Srivastava, P Raghuwansi, S Sarkar, AS Hashmi, P Kumar, YR Singh, ... Genotoxicity Assessment: Methods and Protocols, 547-564 , 2025 2025 Citations: 1
Epigenetic regulation of gremlin-1 and lipocalin-2 in obesity and type 2 diabetes: Pathophysiology and therapy S Kumar, AS Hashmi, P Kumar, S Yadav, S Dwivedi, PK Singh, YR Singh Indian Journal of Precision Medicine and Molecular Medicine 1 (1), 3-8 , 2025 2025 Citations: 1
Comparison of early and late diagnosis impact of type 2 diabetes on cognitive function: a pilot study AK Choudhary, YR Singh, P Kumar, AA Mir, AK Mishra Int J Res Med Sci 12, 2878-85 , 2024 2024 Citations: 1
Observation on Rock Melt Extrusion Occurrence in Southern. B John, Y Singh, DT Rao, MC Barman, AP Pradeepkumar, K Sajeev Journal of the Geological Society of India 97 (2), 119-124 , 2021 2021 Citations: 1
Sedimentary records of liquefaction from central Kerala (southwestern India), as earthquake indicators in a cratonic area B John, Y Singh, CP Rajendran Journal of Asian Earth Sciences 277, 106373 , 2025 2025
A Pilot Study to Unveiling the Link Between Physical Fitness and Cognitive Health in Early Vs. Late Diagnosed Diabetic Patients AK Choudhary, YR Singh, P Kumar, AA Mir, AK Mishra Asian Journal of Health Research 3 (2), 118-124 , 2024 2024
Geosystems and Geoenvironment SGD Dev, V Deepchand, MS Anoop, PK Krishnaprasad, MN Nazeer, ... 2023
Evidence of a damaging paleoearthquake from the southwest India. Y John B. and Singh AES 2022, 138 , 2022 2022
Morphometric Characteristics of the Pallimon Watershed, South Kerala, India IS Sreeja, BK RB, R Reghunath, Y Singh, MN Nazeer Applied Ecology and Environmental Sciences 10 (8), 519-526 , 2022 2022