About author : Dr. Santosh Kumar has born in Madhura Simanpur village of Bhagalpur district of Bihar state. He has done project report on "Scio-Economic Development of Sarkanda" during Post Graduation study from Banaras Hindu University and has done research work on the topic of "Groundwater Resource Management in Mau district: A Geographical Study" from Department of Geography, Banaras Hindu University, Varanasi in 2014. After research, his teaching work has started from Indira Gandhi National Tribal University Amarkantak M.P. in 2015. After one year teaching, he joined to Central University of Jharkhand, Ranchi. During this period he also provided special classes for civil services, UGC-NET and TGT-PGT classes. Many of students has achieved their goal in his direction. At recent he is teaching as an Assistant Professor in L.B.S.M. College, Jamashedpur, of Kolhan University. Apart from teaching, more than one dozen research papers and articles has published in National and International research magazines. He has worked on 'Groundwater Management', 'Landslide Disaster and Management', 'Geo-tectonics and Geomorphology', 'Atmosphere : An Introduction', and 'Contemporary Issues in Geography and Disaster Management'. Some of his work such as 'Geo-tectonics and Geomorphology', has been published. Dr. Richa Chaturvedi : M.A. Ph.D with PG. Diploma in Remote Sensing and GIS. She has received the degree of B.A (2000) & M.A. (2002) from Allahabad University, Allahabad and Ph.D degree (2010) from Banaras Hindu University, Varanasi, (U.P.). At present she is working as Assistant professor in Department of Geography, Indira Gandhi National Tribal University, Amarkantak, M.P. from year 2012. She has published 14 research papers in well-known journals. She has participated 20 National and International seminars and numerous Training programme and workshop. She has performed many responsibilities such as hostel warden, assistant proctor, NSS pregame officer etc.

About book : Recent Atmosphere is the result of long term geological process, chemical and photochemical process of atmospheric elements and bio-geochemical process of the biosphere. In geography, these all atmospheric process are studied in the Climatology which is a branch of geography and climatology and its all process depends upon atmospheric elements, its physical, chemical, biological, photometric, thermal, electric, magnetic and electromagnetic properties and their process. These all properties of the atmospheric gases and particles not only determine the climatic process but also the composition and structure of the atmosphere. The “Atmosphere : An Introduction” not only deals composition, structure and atmospheric process but also try to elaborate all kith and keens of its gases type and their stratification in details. It tries to analyse the role of different layers of the gases and their importance to protect biosphere and its ecosystem. The book attempts to provide all information on recent basis, data and research works. That is why this book is more efficient and useful for all university students, research scholars and teachers. In this book both author have try to explain atmospheric facts with scientific view. When students try to find scientific data and facts in reference to explain atmospheric process and fact in this global warming age, they don’t find appropriate reference. This book provides solution with scientific view. The book 'Atmosphere : An Introduction' emphasis atmospheric composition structure and process in three unites 1. Unit first deals about composition of atmosphere in ree rence to their different gasses and their climatological effect on earth biosphere. 2. Unit second explain about the structure of defferent gaseous layaers and their function with their characteristics. 3. Unit third explore gaseous circulation and its climatic effect on earth's weather.