National Centre for Earth Science Studies

शिक्षा:

प्रोफेशनल करियर:

1. वैज्ञानिक बी, एनसीईएसएस (2023 (अगस्त) - वर्तमान)
2. पीएचडी (2017 (अप्रैल) - 2023 (अप्रैल)) - सीएसआईआर-एनजीआरआई @ भूविज्ञान विभाग, उस्मानिया विश्वविद्यालय, हैदराबाद, भारत।
3. प्रोजेक्ट फेलो (2013 (सितंबर) - 2018 (अक्टूबर)): सीएसआईआर-एनजीआरआई, हैदराबाद, भारत।

विशेषज्ञता का क्षेत्र:

भूस्खलन, बाढ़, मात्रात्मक भू-आकृति विज्ञान, और विवर्तनिक भू-आकृति विज्ञान।

सम्मान/पुरस्कार/फ़ेलोशिप:

1. ईजीयू प्रारंभिक कैरियर वैज्ञानिक: 13 से 19 अक्टूबर, 2019 तक काठमांडू, नेपाल में आयोजित ईजीयू गैलीलियो सम्मेलन "पेरटरबेशन्स ऑफ एर्थ सरफेस डाइनामिक्स कॉस्ड बै एक्सट्रीम इवेंट्स" में भाग लेने के लिए यूरोपीयन जियोसायन्स यूनियन (ईजीयू) द्वारा 445 यूरो से सम्मानित किया गया।

फ़ील्ड कार्य अनुभव:

1. 2023 में पिछले भूस्खलन और भूस्खलन प्रभावित स्थानों के बारे में बुनियादी जानकारी इकट्ठा करने के लिए केरल के इडुक्की जिले का दौरा किया।
2. 2023 में ग्राउंड पेनेट्रेटिंग रडार का उपयोग करके सब्सिडेंस एफेक्ट को समझने के लिए जोशीमठ क्षेत्र का दौरा किया।
3. 2019 में चरम घटनाओं के कारण पृथ्वी की सतह की गतिशीलता कार्यशाला के दौरान नेपाल में भूकंप जनित भूस्खलन प्रभावित क्षेत्र का दौरा किया।
4. 2017 भारत के उत्तराखंड राज्य में ग्राउंड पेनेट्रेटिंग रडार का उपयोग करके भूस्खलन आकृति विज्ञान और उप सतह संरचना को समझने के लिए ऊपरी गंगा जलग्रहण क्षेत्र में गोहना और उखीमठ भूस्खलन का दौरा किया।
5. 2017 में भारत के उत्तराखंड राज्य में ग्राउंड पेनेट्रेटिंग रडार का उपयोग करके भूस्खलन आकृति विज्ञान को समझने और उप सतह संरचना को समझने के लिए ऊपरी गंगा जलग्रहण क्षेत्र में गोहना और उखीमठ भूस्खलन का दौरा किया।
6. 2017 में आंध्र प्रदेश के कडप्पा के पास कार्स्ट स्थलाकृति में सिंकहोल्स का पता लगाने के लिए जीपीआर विश्लेषण।
7. 2017 सिकंदराबाद - जीएचएमसी में भूमिगत जल निकासी की रिसाव पाइपलाइन को पहचानने के लिए जीपीआर विश्लेषण।
8. 2015 में नेपाल में 2015 के गोरखा भूकंप विच्छेदन क्षेत्र में और उसके आसपास भूकंप के बाद के पैलियो-भूकंप विज्ञान का अध्ययन।
9. 2015 में हिमालय काराकोरम तिब्बत (एचकेटी) सम्मेलन-2015 के दौरान कुमाऊं हिमालय में लघु हिमालय का दौरा किया।

प्रशिक्षण/सम्मेलन:

1. 2023 Attended the 2-Day International Workshop On “Remote Sensing for Crustal Deformation Studies” at CSIR-CSIO, Chandigarh.
2. 2019 Attended the OSL/TL workshop at CSIR-National Geophysical Research Institute sponsored by MOES.
3. 2019 Attended the 6th EGU Galileo conference “Perturbations of Earth Surface Dynamics Caused by Extreme Events” held in Kathmandu.
4. 2019 Attended 3-day workshop for ‘ESRI ArcGIS’.
5. 2019 Attended 45th IIRS Outreach Programme on "RS and GIS Applications in Watershed Management’.
6. 2019 Attended 44th IIRS Outreach Programme on ‘Remote Sensing based Mapping Monitoring and Modelling of Landslide and Earthquake hazards’.
7. 2016 Attended the short-term course on "Introduction to Landslide Site Mapping" is sponsored by the Department of Science and Technology (DST), Government of India.
8. 2014 Attended 13th IIRS Outreach Programme on ‘Basics of RS, GIS and GNSS’.

प्रकाशन:

1. Sravan Kumar Kotluri, Prabha Pandey, and Anand K. Pandey. "A Google Earth and ArcGIS-based protocol for channel width extraction." Journal of Earth System Science 133, no. 1 (2024): 1-10.
2. Akilan, A., M. Satyanarayanan, S. Balaji, M. J. Nandan, M. Venkateshwarlu, S. Kumar, Y. Srinivas, H. V. S. Satyanarayana, and O. P. Pandey. "Correlating volcanic emissions from Andaman-Sumatra region to atmospheric pollution in Delhi: A possible scenario." Geosystems and Geoenvironment 2, no. 1 (2023): 100142.
3. Reddy, S. Kiran Kumar, Sravan Kumar Kotluri, Harish Gupta, and D. Venkat Reddy. "Role of Climate and Topography on Hydrological Characteristics of the Bharathapuzha Basin in the Tectonically Quiescent Western Ghats, India." Journal of the Geological Society of India 97 (2021): 1087-1096.
4. Jaiswara, Nilesh K., Sravan Kumar Kotluri, Prabha Pandey, and Anand K. Pandey. "MATLAB functions for extracting hypsometry, stream-length gradient index, steepness index, chi gradient of channel and swath profiles from digital elevation model (DEM) and other spatial data for landscape characterisation." Applied Computing and Geosciences 7 (2020): 100033.
5. Jaiswara, Nilesh Kumar, Sravan Kumar Kotluri, Anand K. Pandey, and Prabha Pandey. "Transient basin as indicator of tectonic expressions in bedrock landscape: Approach based on MATLAB geomorphic tool (Transient-profiler)." Geomorphology 346 (2019): 106853.
6. Akilan, A., KK Abdul Azeez, H. Schuh, Simanchal Padhy, and S. Kumar Kotluri. "Perturbations in atmospheric gaseous components over coastal Antarctica detected in GPS signals and its natural origin to volcanic eruption." Polar Science 19 (2019): 69-76.

सम्मेलन की कार्यवाही:

1. Pandey, A.K., Sravan Kumar, K., Mani Tiwari, V., Rao, P., Cook, K., Andermann, C., Dietze, M., Pilz, M. and Hovius, N., 2021, April. Extreme mass wasting during 2021 Dhauli Ganga event in the Higher Himalaya: insight from the landscape. In EGU General Assembly Conference Abstracts (pp. EGU21-16587).
2. Sravan Kumar Kotluri, Prabha Pandey, Anand K Pandey., 2019, October. Bedrock landslides induced landscape evolution in the upper ganga catchment of the Himalaya. Presented at 6th EGU Galileo conference of “Earth surface dynamics caused by extreme events” held in Kathmandu, Nepal from October 13-19, 2019.
3. Prabha Pandey, K. Sravan Kumar, Anand K Pandey., 2019, January. The extreme events and large-scale mass wasting including landslides in higher himalayan terrain. Presented at “Mastermind session on Landslide Hazards in India” held at NCESS, Trivandrum.
4. Kumar, K.S., Pandey, P. and Pandey, A.K., 2016, November. Tista river response to uplift in the himalayan terrain: a morphotectonic approach. In 53rd Annual Convention of IGU “Geoscience for Sustainability” (p. 160).
5. Kumar, K.S., Pandey, P. and Pandey, A.K., 2015, January. Tista river response to uplift in the himalayan terrain: a morphotectonic approach. Presented during 30th Himalaya Karakoram Tibet Workshop held at WIHG Dehra Dun”.
6. Kumar, K.S., Pandey, P. and Pandey, A.K., 2014, January. Drainage characteristics of tista river in himalayan terrain. In 50th annual convention “sustainability of Earth system-the Future challenges” (p. 219).

पत्रिकाओं में शोध पत्र:

1. Babu, S.S., Prajith, A., Rao, V.P., Mohan, M.R., Ramana, R.V., Satyasree, N.S, 2024. Sources of rare earths and a viable REE deposits in river sediments of Kerala, southwest India. Current Science.

2. Babu, S.S., Prajith, A., Rao, V.P., Mohan, M.R., Ramana, R.V., Satyasree, N.S, 2023. Composition of river sediments from Kerala, southwest India: Inferences on lateritic weathering. Journal of Earth System Science 132, 150.

3. Prajith, A., Tyagi, A., Kurian, P.J., 2022. Influences of summer monsoon variations onthe terrigenous influx, bioproductivity and early diagenetic changes in the southwest Bay of Bengal during Late Quaternary. Marine Geology 449, 106825.

4. Prakash, L.S., Kurian, P.J., Resing, J.A., Tsunogai, U., Rao, A.S., Sen, K., Lupton, J.E., Baumberger, T., Prajith, A., Roy, P., 2022. Volatile-rich hydrothermal plumes over the southern Central Indian Ridge, 24o49’: Evidence for a new hydrothermal field hosted by ultramafic rocks. Geochemistry, Geophysics, Geosystems 23(10), 1-19.

5. Prajith, A., Tyagi, A., Kurian, P. J., 2021. Geochemistry of core sediments from the southeastern Bay of Bengal: inferences on weathering and early diagenetic changes. Geoscience Frontiers 12, 495-504.

6. Srivastava, J., Manjunatha, B.R., Balakrishna, K., Prajith, A., Manjunatha, H. V., Jose, J., Kumar, N., 2021. Quantitative pollen-based reconstruction of the vegetation diversity in response to the late-Holocene climate change near Karwar, south-west coast of India. Quaternary International 599-600, 95-106.

7. Prajith, A., Tyagi, A., Kurian, P.J., 2018. Changing sediment sources in the Bay of Bengal: evidences of summer monsoon intensification and ice melt over Himalaya during the Late Quaternary. Paleogeography, Paleoclimatology, Paleoecology 511, 309-318.

8. Prajith, A., Rao, V.P., Chakraboty, P., 2016 Distribution, provenance and early diagenesis of major and trace metals in sediment cores from the Mandovi estuary, western India. Estuarine Coastal and Shelf Science 170, 173-183.

9. Prajith, A., Rao, V.P., Kessarkar, P.M., 2015. Magnetic properties of sediments in cores from the Mandovi estuary, western India: Inferences on provenance and pollution. Marine Pollution Bulletin 99, 338-345.

10. Prajith, A., Rao, V.P., Kessarkar, P.M., 2015. Controls on the distribution and fractionation of yttrium and rare earth elements in core sediments from the Mandovi estuary, western India. Continental Shelf Research 92, 59-71.

Journal Articles:

1. C. P. Dubey and A. Roy, “Joint inversion of gravity and gravity gradient and its application to mineral exploration,” The Journal of Indian Geophysical Union, vol. 27, no. 1, pp. 1–18, 2023.
2. A. Roy, M. Prasad, P. Rao B, and J. Tomson, “Estimation of moho depth beneath southern Indian shield by inverting gravity anomalies constrained by seismic data,” Journal of Geophysical Research: Solid Earth, e2022JB025651, 2023.
3. A. Roy and L. Wu, “Generalized Gauss-FFT 3D forward gravity modeling for irregular topographic mass having any 3d variable density contrast,” Computers & Geosciences, vol. 172, p. 105 297, 2023.
4. R. K. Sharma, S. Kumar, D. Padmalal, and A. Roy, “Streamflow prediction using machine learning models in selected rivers of Southern India,” International Journal of River Basin Management, vol. 21, no. 0, pp. 1–27, 2023.
5. A. Roy, T. S. Kumar, and R. K. Sharma, “Structure estimation of 2D listric faults using quadratic Bezier curve for depth varying density distributions,” Earth and Space Science, vol. 9, no. 2, e2021EA002061, 2022.
6. A. Roy, C. P. Dubey, and M. Prasad, “Gravity inversion for heterogeneous sedimentary basin with b-spline polynomial approximation using differential evolution algorithm,” Geophysics, vol. 86, no. 3, F35–F47, 2021.
7. A. Roy, C. P. Dubey, and M. Prasad, “Gravity inversion of basement relief using particle swarm optimization by automated parameter selection of Fourier coefficients,” Computers & Geosciences, vol. 156, p. 104 875, 2021.
8. A. Roy and T. S. Kumar, “Gravity inversion of 2D fault having variable density contrast using particle swarm optimization,” Geophysical Prospecting, vol. 69, no. 6, pp. 1358–1374, 2021.
9. N. P. Chandrasekhar and A. Roy, “Imprints of sunspot cycles on normal and abnormal geomagnetic fields: Case study from equatorial and low-latitude sites of India,” Journal of Geophysical Research: Space Physics, vol. 125, no. 12, e2020JA028464, 2020.

Conference Proceedings:

1. A. Roy and B. Padma Rao, “Gravity inversion with seismic constraints to map the crustal thickness beneath antarctica,” in National Conference on Polar Sciences (NCPS-2023), Goa, India, 2023.
2. A. Roy, M. Prasad, B. Padma Rao, and J. K. Tomson, “Seismic constraint gravity inversion in spherical coordinates with application to 3D moho depth mapping beneath southern India,” in XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG), Berlin, Germany, 2023.
3. A. Roy and J. K. Tomson, “High-resolution 3d moho structure estimation in southern India and surrounding regions: Insights from gravity disturbances and seismic constraints,” in Indian Geophysical Union Annual Convention (IGU-2023), Cochin, India, 2023.
4. N. P. Chandrasekhar and A. Roy, “Study of geomagnetic data from Ettaiyapuram and Hyderabad magnetic observatories, India over two solar cycles provide insights into atmospheric coupling processes,” in 27th IUGG General Assembly, Montreal, Canada, 2019.
5. A. Roy, N. P. Chandrasekhar, K. Arora, and N. P. Rao, “Spatial & temporal characteristics of solar quiet & equatorial electrojet along American & south-east Asian sectors,” in 27th IUGG General Assembly, Montreal, Canada, 2019.

शिक्षा:

प्रोफेशनल करियर:

1. वैज्ञानिक बी, एनसीईएसएस(2021 - वर्तमान)
2. परियोजना वैज्ञानिक, राष्ट्रीय ध्रुवीय एवं समुद्री अनुसंधान केंद्र, गोवा, भारत (2016 – 2021)
3. जेआरएफ और एसआरएफ, सीएसआईआर-राष्ट्रीय समुद्र विज्ञान संस्थान, गोवा, भारत (2011 – 2016)
4. प्रोजेक्ट फेलो, समुद्री भूविज्ञान विभाग, मैंगलोर विश्वविद्यालय, कर्नाटक, भारत (2010 – 2011)

विशेषज्ञता के क्षेत्र:

सेडिमेंट जियोकेमिस्ट्री

रुचि का क्षेत्र:

तलछट विज्ञान, पुरासमुद्र विज्ञान, पुराजलवायु, समुद्री खनिज अन्वेषण, डायजेनेसिस, भू-रसायन, आइसोटोप भूविज्ञान, एनवयोनमेंटल माग्नेटिस्म|

सदस्यताएँ:

1. आजीवन सदस्य, ओशन सोसाइटी ऑफ इंडिया|

सम्मान/पुरस्कार/अध्येतावृत्ति:

1. पृथ्वी, वायुमंडलीय, महासागर और ग्रह विज्ञान में सीएसआईआर जूनियर रिसर्च फेलोशिप, दिसंबर 2010।

2. पृथ्वी, वायुमंडलीय, महासागर और ग्रह विज्ञान में सीएसआईआर राष्ट्रीय पात्रता परीक्षा (एनईटी) व्याख्यान, दिसंबर 2008।

चालू परियोजनाएं:

Origin, evolution and paleoclimatic implications of estuarine-continental margin sediments (MoES-Ministry of Earth Sciences, Govt. of India)

Paleo-vegetation changes and burial efficiency of organic carbon in different depositional conditions in the Bay of Bengal and Andaman Sea during Late Quaternary and their environmental implications. DST-SERB Project.

वैज्ञानिक क्रूज अभियान:

1. Participant, Dredging and Sediment core sampling in the Bay of Bengal and Andaman Sea (R.V. Sagar Kanya 373, 21.09.2021 – 15.10.2021.

2. Chief Scientist, Geological sampling, and Mapping programme in the Andaman Region (R.V MGS Sagar 30, 30.09.2019 – 07.11.2019).

3. Deputy chief scientist, Geoscientific studies in Indian EEZ area (R.V. Sagar Kanya 356, 22.02.2019 - 14.03.2019).

4. Participant, Hydrothermal Exploration in CIR/SWIR Region (R.V. MGS Sagar 24, 19.02.2018 – 02.04.2018).

5. Chief Scientist, Geological sampling, and Mapping programme in Bay of Bengal (R.V. MGS Sagar 20, 22.09.2017 – 23.10.2017).

6. Chief Scientist, Geological sampling, and Mapping programme in Bay of Bengal (R.V. MGS Sagar 16, 06.05.2017 – 12.06.2017).

7. Participant, Hydrothermal Exploration in CIR/SWIR Region (R.V. MGS Sagar 13, 12.01.2017 – 09.02.2017).

8. Participant, Geological sampling, and Mapping programme in the east coast of India (MGS Sagar 11, 12.11.2016 - 15.12.2016).

9. Participant, Geological sampling, and Mapping programme in Arabian Sea (R.V. MGS Sagar 08, 30.07.2016 – 23.08.2016).

10. Participant, Multibeam data acquisition on the western coast of India (R.V Sindhu Sankalp- 82, 12.11.2015 – 26.11.2015).

11. Seawater and sediments sampling in the Bay of Bengal (R.V. Sindhu Sadhana – 02, 23. 08.2014 – 03.09.2014).