Mahua Saha | Marine pollution | Best Researcher Award

Dr. Mahua Saha | Marine pollution | Best Researcher Award

National Institute of Oceanography, India

Author Profile

Early Academic Pursuits 🎓

Dr. Mahua Saha’s academic journey reflects an unwavering commitment to understanding environmental science, with a special focus on marine chemistry and organic geochemistry. She began her educational path with a Bachelor of Science in Chemistry from Bidhannagar College, affiliated with the University of Calcutta, Kolkata, India, in 1999. Building on her strong foundation in chemistry, she pursued a Master of Science in Marine Science with a specialization in Marine Chemistry at the University of Calcutta, completing her degree in 2001.

Dr. Saha’s academic pursuits reached new heights when she moved to Japan to pursue a Doctor of Philosophy (Ph.D.) in Environmental Science, specializing in Organic Geochemistry at the United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology (TUAT), Japan, in 2008. Her doctoral thesis, titled “Distribution and Source Identification of Polycyclic Aromatic Hydrocarbons (PAHs) in Aquatic Environments in India”, was supervised by Prof. Hideshige Takada and focused on understanding the sources and distribution of hazardous compounds in Indian aquatic environments, marking a significant contribution to environmental and marine chemistry research. 🌍

Professional Endeavors 💼

Dr. Mahua Saha has built an illustrious career in the field of chemical oceanography. She is currently serving as the Principal Scientist in the Chemical Oceanography Division at the National Institute of Oceanography (NIO) in Goa, India, since September 2020. In this role, Dr. Saha has been deeply involved in monitoring and assessing the presence of microplastics in the Indian Ocean and the Indian coastal environment. Her work in evaluating and quantifying organic micropollutants, including Persistent Organic Pollutants (POPs) and plasticizers in marine microplastics, is instrumental in understanding the environmental risks posed by these pollutants to marine ecosystems.

Before becoming the Principal Scientist, Dr. Saha served as a Senior Scientist in the same division at NIO from 2014 to 2020. During this period, she established a dedicated laboratory for microplastics studies, which became a pivotal resource for investigating the effects of microplastics on marine life. Dr. Saha is proficient in using advanced analytical techniques such as GC-MS (Gas Chromatography-Mass Spectrometry) and microFTIR (Micro Fourier Transform Infrared Spectroscopy), which are crucial for the precise identification and quantification of contaminants in marine environments. 🔬

Contributions and Research Focus 🌱

Dr. Saha’s research has significantly advanced the field of marine pollution studies, particularly regarding the impact of microplastics on marine ecosystems. Her work has primarily focused on:

  • Microplastics in marine environments: Dr. Saha has contributed extensively to the monitoring, assessment, and quantification of microplastics in the Indian Ocean and along the coastal regions of India. She is dedicated to understanding the distribution of these pollutants and their potential risks to marine organisms.
  • Persistent Organic Pollutants (POPs): Her research also delves into evaluating the levels of harmful chemicals like POPs and plasticizers adsorbed onto microplastics, exploring their long-term impacts on marine organisms and ecosystems.
  • Risk management and marine safety: Through her work, she has developed strategies for managing the risks posed by microplastics and their associated hazardous chemicals, helping mitigate the dangers these pollutants pose to marine life and human health. 🐋

Accolades and Recognition 🏆

Dr. Saha’s contributions to the scientific community have earned her widespread recognition. Her expertise in chemical oceanography and marine pollution research has been acknowledged by both national and international peers. Dr. Saha is considered an expert in the field of microplastics and marine chemistry, and her pioneering work in marine pollution is shaping the future of environmental science.

Throughout her career, Dr. Saha has presented her research at numerous national and international conferences and has collaborated with various global organizations to address pressing environmental issues. Her research has been cited extensively, and she continues to receive research grants for her work on ocean pollution and sustainable marine management. 🌊

Impact and Influence 🌍

Dr. Saha’s work has had a profound impact on the field of marine environmental science. Through her research, she has significantly increased awareness about the environmental hazards associated with microplastics and other pollutants in the ocean. Her efforts in establishing a dedicated microplastics research laboratory have led to the development of important methodologies for identifying and quantifying pollutants, improving the monitoring systems for marine ecosystems.

Dr. Saha’s research has contributed to global discussions on the safe management of marine waste and the preservation of marine biodiversity. By investigating the risks that microplastics and organic pollutants pose to marine life, she has influenced policy changes aimed at reducing marine pollution and enhancing ocean protection. 🌐

Legacy and Future Contributions 🌟

Dr. Saha’s legacy lies in her relentless pursuit of knowledge and her commitment to solving critical issues facing the marine environment. As she continues her research at the National Institute of Oceanography, her future contributions are likely to expand on the existing body of knowledge on microplastics, marine pollution, and environmental safety.

Looking forward, Dr. Saha aims to develop new strategies for mitigating marine pollution and advocating for sustainable practices in ocean management. Her ongoing work will contribute to global efforts in combating climate change, pollution, and ensuring the health of marine ecosystems for future generations. Through her pioneering work, Dr. Saha is shaping the future of marine environmental science and continues to inspire future generations of scientists and environmental advocates. 🌱🌍

Citations

A total of 6,261 citations for his publications, demonstrating the impact and recognition of his research within the academic community.

  • Citations        6,261
  • h-index          45
  • i10-index       29

Notable Publications 

  • Title: The first report on emerged microplastics in deep-sea sediment: Insights from the Central Indian Ocean Basin
    Authors: Ramadoss, D., Biju, A., Rathore, C., John, J., Behera, A.K.
    Journal: Marine Pollution Bulletin, 2025.
  • Title: Do microplastics accumulate in penguin internal organs? Evidence from Svenner island, Antarctica
    Authors: Bhattacharjee, S., Rathore, C., Naik, A., de Boer, J., Chaudhuri, P.
    Journal: Science of the Total Environment, 2024.
  • Title: SOURCE APPORTIONMENT OF ATMOSPHERIC AND SEDIMENTARY PAHS FROM KOLKATA, INDIA USING COMPOUND-CLASS-SPECIFIC RADIOCARBON ANALYSIS (CCSRA)
    Authors: Kumata, H., Uchida, M., Saha, M., Shibata, Y., Takada, H.
    Journal: Radiocarbon, 2024.
  • Title: A comprehensive assessment of macro and microplastics from Rivers Ganga and Yamuna: Unveiling the seasonal, spatial and risk factors
    Authors: Gupta, P., Saha, M., Naik, A., Bhardwaj, K.D., Thukral, H.
    Journal: Journal of Hazardous Materials, 2024.
  • Title: Unraveling the land-based discharge of microplastics from sewers to oceans – A comprehensive study and risk assessment in wastewaters of Goa, India
    Authors: Rathore, C., Saha, M., de Boer, J., Naik, A., Subha, H.Y.
    Journal: Science of the Total Environment, 2024.

Janakiraman | Marine Sciences | Best Researcher Award

Dr. A. Janakiraman | Marine Sciences | Best Researcher Award

National Institute of Ocean Technology, India

Author Profile

Early Academic Pursuits 📖✨

Dr. A. Janakiraman’s academic journey began with a strong focus on the field of zoology, demonstrating a profound commitment to the study of life sciences and ecology. He completed his B.Sc. (Adv. Zoology & Biotechnology) from R.K.M. Vivekananda College, affiliated with the University of Madras, in 2007. This was his first significant step in developing a deep understanding of biological sciences, scoring an impressive 70% and graduating with 1st Class honors. The academic foundation laid during his undergraduate studies fueled his passion for research and exploration of ecological diversity.

Dr. Janakiraman’s pursuit of knowledge continued with a Master’s degree in M.Sc. Zoology from The New College, affiliated with the University of Madras, in 2009. He graduated with 75% and secured 1st Class with Distinction. His outstanding performance in postgraduate studies demonstrated his ability to excel in academic environments and solidified his research skills. The culmination of his M.Sc. education was marked by the development of a comprehensive approach to studying and understanding ecological systems.

Professional Endeavors 🏛️👨‍🏫

Dr. Janakiraman’s career has been a blend of teaching, research, and contributions to the academic community. His professional journey showcases his dedication to fostering education and advancing knowledge in the field of zoology. After completing his M.Phil. in Zoology from The New College in 2010, where he graduated with 80.25% and secured 1st Class with Outstanding honors, Dr. Janakiraman’s expertise continued to grow. His dissertation and research work during his M.Phil. set the stage for further studies in ecological assessments and biodiversity.

Dr. Janakiraman’s crowning academic achievement came with his Ph.D. in Zoology from The New College in 2014. His thesis, entitled “Zooplankton and Meiofaunal diversity with reference to eco-restoration assessment of Adyar creek and estuary, Chennai, India,” was Highly Commended, an indicator of the significant contribution his work made to understanding the ecological restoration of vital water bodies. This research has been pivotal in evaluating how biodiversity can be impacted and restored, showcasing his analytical and ecological research skills.

Contributions and Research Focus 🔬🌱

Dr. Janakiraman’s research has been pivotal in the study of zooplankton and meiofaunal diversity, particularly in the context of eco-restoration projects. His work on the Adyar creek and estuary stands as a prime example of how dedicated research can be used to assess and improve the health of fragile ecosystems. This research not only added to the scientific literature on ecological diversity but also provided actionable insights for conservation strategies and sustainable management of estuarine environments.

His academic pursuits have focused on the intricacies of aquatic life, the impact of environmental changes on biodiversity, and the role of ecological restoration in rehabilitating compromised ecosystems. Dr. Janakiraman’s work has been influential in shaping discussions around habitat restoration and sustainable environmental practices, making him a valuable figure in the field of environmental and ecological research.

Accolades and Recognition 🏅👏

Dr. Janakiraman’s dedication to research and academic excellence has been recognized through various commendations. The Highly Commended status of his Ph.D. thesis speaks volumes about the quality and impact of his research. Additionally, his consistent high marks, including his 80.25% in M.Phil. and 75% in M.Sc., demonstrate his commitment to excellence throughout his academic journey. These achievements not only underscore his capabilities but have also contributed to his growing reputation in the scientific community.

Impact and Influence 🌟🤝

Dr. Janakiraman’s influence extends beyond research. He has become an inspiring figure for his students and colleagues, motivating them to engage in meaningful research and adopt innovative approaches to studying ecological systems. His comprehensive understanding of zoology and biodiversity has made him an effective educator who can bridge theoretical knowledge with real-world applications. Through his teaching, he has encouraged a new generation of ecologists and environmental scientists to pursue research that can drive positive environmental change.

Legacy and Future Contributions 🌱🏆

Dr. A. Janakiraman’s legacy is rooted in his contributions to ecological research and his impact on the field of zoology. His dedication to studying the diversity of aquatic life and ecosystem restoration has set a high standard for future research. Moving forward, he is poised to further contribute by mentoring upcoming researchers and guiding them toward projects that align with sustainable and impactful practices. His goal is to continue fostering a deep understanding of environmental challenges and to inspire innovative solutions that promote ecological health and sustainability.

Dr. Janakiraman’s future endeavors are likely to include collaborations with environmental agencies, policy makers, and research institutes to ensure that his research not only contributes to academic discussions but also results in practical, real-world applications. With his expertise, he will continue to be a driving force in promoting biodiversity conservation and sustainable environmental practices, further strengthening his legacy as a distinguished and impactful researcher. 🌍💡

Notable Publications 

  • “Report on high density population of a Cladoceran, Moina macrocopa and their gut microbes in anoxic sewage water: a potential bio-indicator of aquatic pollution”
    Authors: Janakiraman, A., Thangaraj, S., Gokula, V., Stalin, A.
    Journal: Aquatic Ecology
    Year: 2024.
  • “An impact of tropical cyclone on meiobenthic fauna of Chennai coast, Tamil Nadu, India: A case study of cyclone Mandous”
    Authors: Janakiraman, A., Sudhakar, M.P., Ratnam, K., Jha, D.K., Dharani, G.
    Journal: Science of the Total Environment
    Year: 2024.
  • “Post-restoration ecological assessment on the zooplankton dynamics of the Adyar creek and estuary”
    Authors: Altaff, K., Janakiraman, A., Naveed, M.S., Sugumaran, J., Mantha, G.
    Journal: Journal of Coastal Conservation
    Year: 2019.
  • “Ecological restoration assessment of Adyar creek and estuary using meiofaunal communities as ecological indicators for aquatic pollution”
    Authors: Janakiraman, A., Naveed, M.S., Asrar Sheriff, M., Altaff, K.
    Journal: Regional Studies in Marine Science
    Year: 2017.
  • “Meiofaunal response to the tidal exchange and domestic sewage in the Adyar estuary, Chennai, India”
    Authors: Janakiraman, A., Naveed, M.S., Asrar Sheriff, M., Altaff, K.
    Journal: Indian Journal of Geo-Marine Sciences
    Year: 2016.

Sunil kumar Mohanta | OCEAN ACOUSTICS | Young Scientist Award

Mr. Sunil kumar Mohanta | OCEAN ACOUSTICS | Young Scientist Award

National Institute of Ocean Technology(NIOT), Chennai-India

Author Profile

Early Academic Pursuits 🎓

Sunil Kumar Mohanta’s journey in the field of physics began with his foundational education. He completed his Bachelor of Science with honors in Physics from Betnoti College in 2014. During this time, he not only excelled in physics but also cultivated a robust understanding of related subjects, including chemistry, mathematics, and biology. His thirst for knowledge led him to pursue a Master of Science in Physics at Sambulpur University, where he graduated in 2016. His master’s curriculum encompassed critical topics such as Classical and Relativistic Mechanics, Quantum Mechanics, Electrodynamics, and Statistical Mechanics. This comprehensive education equipped him with a solid theoretical framework that would later inform his research endeavors.

Professional Endeavors 🔬

Sunil’s professional career has been significantly marked by his role in the National Institute of Ocean Technology (NIOT) in Chennai, Tamil Nadu. He began his journey as a Junior Research Fellow (JRF) on December 19, 2019, under the Ministry of Earth Sciences (MoES) Research Fellow Program (MRFP). After a successful tenure, he advanced to the position of Senior Research Fellow (SRF) on September 19, 2021, where he continues to contribute to cutting-edge research.In his role at NIOT, Sunil has been primarily focused on understanding the intricate dynamics of the Arctic environment. His research is centered on the soundscape study in the Arctic, utilizing acoustic observations to gain insights into ice dynamics. This innovative approach not only enhances our understanding of Arctic ecosystems but also contributes to broader discussions on climate change and its implications.

Contributions and Research Focus 🌊

Sunil’s research in the Arctic has yielded significant findings, particularly in the context of how soundscapes can provide valuable data on environmental changes. His work leverages advanced acoustic technology to monitor and analyze sounds in the Arctic, offering critical information that aids in understanding ice behavior and its relationship to climate fluctuations.His technical skills in MATLAB and SCILAB have been instrumental in processing and analyzing data, allowing for detailed simulations and modeling. Furthermore, his publication in the POLAR SCIENCE Journal showcases his commitment to disseminating knowledge and contributing to the scientific community. This publication is not just a personal achievement but also serves as a resource for fellow researchers exploring similar themes.

Accolades and Recognition 🏆

Sunil’s dedication and expertise have not gone unnoticed in the academic community. He has achieved significant recognition through his efforts, including the successful completion of the National Eligibility Test (NET) and the Graduate Aptitude Test in Engineering (GATE) in Physics. These qualifications underscore his proficiency and mastery in the field, positioning him as a knowledgeable physicist ready to tackle complex scientific challenges.His role in impactful research projects has earned him the respect of his peers and mentors, reinforcing his status as a rising star in the scientific community.

Impact and Influence 🌍

Sunil Kumar Mohanta’s work has broader implications beyond the immediate research findings. By investigating the soundscape of the Arctic, he contributes to vital discussions about climate change and environmental sustainability. His research helps bridge gaps in our understanding of how climate dynamics influence polar regions, which is increasingly critical in the face of global environmental shifts.Moreover, his experience and insights serve to inspire and mentor upcoming physicists, emphasizing the importance of interdisciplinary approaches in research. Sunil’s journey encourages collaboration among different scientific domains, fostering a holistic approach to tackling complex environmental issues.

Legacy and Future Contributions 🔮

As he continues his research at NIOT, Sunil Kumar Mohanta is poised to make lasting contributions to the field of physics and environmental science. His work is likely to influence future studies on climate dynamics, particularly in polar regions. By combining his technical skills with a passion for research, he aims to further explore the intricate relationships within ecosystems and the effects of anthropogenic factors on these environments.Looking ahead, Sunil aspires to expand his research scope, possibly delving into interdisciplinary collaborations that integrate technology and environmental science. His vision includes contributing to global initiatives aimed at understanding and mitigating climate change, leaving a meaningful legacy for future generations of scientists.In conclusion, Sunil Kumar Mohanta exemplifies dedication, innovation, and impact in the realm of physics and environmental research. His academic and professional pursuits reflect a commitment to advancing our understanding of critical issues facing our planet today. 🌏

Notable Publications 

  • Title: Soundscape during summer in Kongsfjorden, Svalbard, Arctic
    Authors: Mohanta, S.K., Sanjana, M.C., Latha, G., Arunbabu, E.
    Journal: Polar Science
    Year: 2024.
  • Title: Sediment Parameter Inversions in the East China Sea
    Authors: Noufal, K.K., Mohanta, S.K., Lokhande, S., Potty, G.R., Miller, J.H.
    Conference: Oceans Conference Record (IEEE)
    Year: 2022.

Thota Sivasankar | Remote Sensing | Best Researcher Award

Dr. Thota Sivasankar | Remote Sensing | Best Researcher Award

NIIT University- India 

Author Profile

Early Academic Pursuits

Thota Sivasankar, Ph.D., embarked on his academic journey with a strong foundation in electronics and communications, earning his B.Tech. degree from RVR & JC College of Engineering, Guntur, India, in 2011. He then pursued an M.Tech. in Remote Sensing from Andhra University, Visakhapatnam, India, where his thesis focused on the spatio-temporal changes of HIV/AIDS in the Visakhapatnam district using a medical GIS approach. This early work demonstrated his interdisciplinary approach and innovative use of GIS in health studies. Dr. Sivasankar completed his Ph.D. in Geomatics from the Indian Institute of Technology (Indian School of Mines), Dhanbad, India, in 2019, with a thesis on Vegetation Biophysical Parameters using RISAT-1 Hybrid Polarimetric SAR Data, showcasing his expertise in advanced remote sensing techniques.

Professional Endeavors

Dr. Sivasankar’s professional career is marked by significant contributions to both academia and research institutions. Since February 2020, he has been serving as an Assistant Professor in Geographic Information Systems (GIS) at NIIT University, Neemrana, India. Prior to this, he was a Research Scientist at the North Eastern Space Applications Centre (NESAC) in Umiam (Shillong), India, from December 2016 to December 2019. Here, he worked on disaster risk reduction, playing a crucial role in mitigating natural disasters in the North Eastern region of India. His earlier role as a Research Scholar in the Agriculture and Soils Division at the Indian Institute of Remote Sensing (IIRS), ISRO, Dehradun, India, further honed his research skills in remote sensing applications for agricultural and soil studies.

Contributions and Research Focus

Dr. Sivasankar’s research has predominantly focused on the application of remote sensing and GIS technologies in environmental monitoring, disaster management, and agricultural studies. His Ph.D. work on RISAT-1 Hybrid Polarimetric SAR Data for vegetation analysis is a testament to his expertise in SAR data and its applications in environmental monitoring. At NESAC, he contributed to disaster risk reduction efforts, leveraging remote sensing data for early warning systems and mitigation strategies. His interdisciplinary approach combines technology with practical applications, addressing real-world problems through innovative research.

Accolades and Recognition

Throughout his career, Dr. Sivasankar has received recognition for his contributions to remote sensing and GIS. His work has been acknowledged in various academic and professional circles, highlighting his commitment to advancing the field. His innovative research and teaching methods have earned him accolades, establishing him as a respected figure in the academic community.

Impact and Influence

Dr. Sivasankar’s impact extends beyond his immediate research contributions. His role as an Assistant Professor allows him to shape the next generation of GIS professionals, imparting his knowledge and experience to students. His work in disaster risk reduction has had a tangible impact on the communities in North Eastern India, demonstrating the practical benefits of remote sensing technologies in mitigating natural disasters.

Legacy and Future Contributions

Looking ahead, Dr. Sivasankar aims to continue his research in remote sensing and GIS, with a focus on developing new methodologies and applications that address global environmental challenges. His ongoing work at NIIT University is expected to produce significant advancements in the field, contributing to both academic knowledge and practical solutions for environmental monitoring and disaster management. Dr. Sivasankar’s legacy will be defined by his commitment to integrating technology with real-world applications, ensuring that his contributions have a lasting and meaningful impact on society.

Citations

A total of 317 citations for his publications, demonstrating the impact and recognition of his research within the academic community.

  • Citations         317
  • h-index           11
  • i10-index        11
Notable Publications 

Geomorphic assessment of active tectonics in Jaisalmer basin (western Rajasthan, India)

M Biswas, MP Gogoi, B Mondal, T Sivasankar, S Mukherjee, S Dasgupta
Geocarto International

Assessing the potentials of multi-temporal sentinel-1 SAR data for paddy yield forecasting using artificial neural network

PK Sharma, P Kumar, HS Srivastava, T Sivasankar
Journal of the Indian Society of Remote Sensing

Development of an interactive web-based geovisual analytics platform for analysing crime data

MA Kaif, S Samaiya, RA Purnima, T Sivasankar, A Roy, A Poojitha
2023 IEEE Symposium on Wireless Technology & Applications

Soil moisture estimation underneath crop cover using high incidence angle C-band Sentinel-1 SAR data

HS Srivastava, T Sivasankar, MD Gavali, P Patel
Kuwait Journal of Science

Jyoti Sharma | Remote sensing | Best Researcher Award

Dr. Jyoti Sharma | Remote sensing | Best Researcher Award

India Meteorological Department- India

Author Profile

Early Academic Pursuits:

Jyoti Sharma’s academic journey began with a Bachelor’s degree in Physics, Mathematics, and Chemistry from M. J. P. Rohilkhand University, Bareilly, followed by a Master’s in Physics from the same institution. These foundational years laid the groundwork for her future academic pursuits and research interests.

Professional Endeavors:

Upon completion of her master’s degree, Sharma embarked on her Ph.D. in Remote Sensing at the Department of Physics, Indian Institute of Technology, BHU, Varanasi. Her doctoral research focused on “Retrieval of soil moisture and biophysical parameters using microwave spaceborne observations.” This period marked her transition into the realm of Earth observation and satellite data analysis.After obtaining her Ph.D., Sharma transitioned into the role of a Research Associate at the Hydrology Process Group, National Centre for Earth Science Studies, Thiruvananthapuram, Kerala. Here, she delved deeper into hydrology processes, further honing her skills in data analysis and satellite data processing.

Contributions and Research Focus:

Sharma’s research has primarily revolved around leveraging satellite data for environmental monitoring and assessment. Her expertise spans LU/LC mapping/classification, image processing, and radar data analysis. Through her work, she has contributed significantly to the understanding of soil moisture dynamics and biophysical parameters, crucial for agricultural and environmental management.

Accolades and Recognition:

Sharma’s contributions have been recognized both nationally and internationally. She received the Best Poster Award in the category of “Retrieval and Assessment” at the International Soil Moisture School (ISMS) by IEEE-GRSS society, held at IIT Bombay, Mumbai, in 2023. Additionally, her academic achievements include qualifying the CSIR-NET JRF in Physical Science with an impressive All India Rank of 98 in 2017.

Impact and Influence:

Sharma’s work has left a lasting impact on the fields of remote sensing and hydrology. By advancing methodologies for soil moisture retrieval and leveraging satellite data for environmental monitoring, she has contributed to the scientific community’s understanding of Earth’s systems. Her research findings have implications for agricultural productivity, water resource management, and climate change mitigation.

Legacy and Future Contributions:

As Sharma continues her career as a Project Scientist at the India Meteorological Department, her legacy extends beyond individual achievements to shaping the future of Earth observation and environmental science. Through continued research, mentorship, and collaboration, she aims to further enhance our understanding of Earth’s processes and contribute to sustainable development initiatives globally.

Citations

A total of 115  citations for his publications, demonstrating the impact and recognition of his research within the academic community.

  • Citations         115
  • h-index            7
  • i10-index         4
Notable Publications 

Improving spatial representation of soil moisture through the incorporation of single-channel algorithm with different downscaling approaches

J Sharma, R Prasad, PK Srivastava, SA Yadav, VP Yadav
IEEE Transactions on Geoscience and Remote Sensing

Challenges in Radar remote sensing

PK Srivastava, R Prasad, SC Kumar, SA Yadav, J Sharma, S Suman, …
Radar Remote Sensing,

Development of a new vegetation modulated soil moisture index for the spatial disaggregation of SMAP soil moisture data product

J Sharma, R Prasad, PK Srivastava, SA Yadav, SK Singh, B Verma
Physics and Chemistry of the Earth,