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  • 1:07 PM, Tuesday, 21 Sep 2021

Course Undergraduate
Semester Sem. IV
Subject Code ES221
Subject Title Earth System Science


•    Introduction, Earth System, Components of Earth System – Atmosphere, Hydrosphere, Cryosphere, Lithosphere, Biosphere, Earth crust and Mantle. Vertical thermal structure of the atmosphere – vertical variation of pressure, temperature and density in the atmosphere; Major and Minor constituents of the earth’s atmosphere and their role in earth’s climate; Aerosols.
•    Thermal classification of atmospheric layers: troposphere, stratosphere, mesosphere, and thermosphere; Introduction to the structure of Earth’s ionosphere and magnetosphere.
•    Spectra of solar and terrestrial radiation; Absorption and scattering of solar and terrestrial radiation in the atmosphere; Radiation and energy budget of the earth-atmospheric system; Greenhouse effect.
•    Climate System – Roles of various components of the Earth System in determining Climate. Feedback processes in Climate System – concept of feedback, applications of feedback to the climate system.
•    Hydrological Cycle in the Earth System; Carbon Cycle in the Earth System; Oxygen in the Earth System
•    Climate Variability- Milankovich cycle, Internally generated climate variability, coupled climate variability, Anthropogenic forcing of climate change; El Nino Southern Oscillation.

Solid Earth Component
•    Introduction to the components of the earth system
•    Internal structure of the earth: crust, mantle and core
•    Formation of minerals and Rocks:General physical, chemical and optical properties of common rock forming minerals; Igneous, sedimentary and metamorphic processes; genesis of common, igneous, metamorphic and sedimentary rocks.
•    Geologic work of natural agents- atmosphere, wind, water and glaciers
•    Isostasy, Sea floor spreading, Continental Drift and Plate tectonics
•    Formation, classification and genetic mechanisms of Volcanoes, earthquakes and other mass movements

Text Books

1.    J.M. Wallace and P.V. Hobbs, Atmospheric Science, An Introductory Survey, International Geophysical Series, 2006.
2.    J.P. Pexioto and A.H. Oort, Physics of climate, Springer.
3.    Dynamic and Physical Meteorology, S.  L.  Haltiner and F.  L.  Martin
4.    Introduction to Theoretical Meteorology, S.  Hess
5.    The Physics of Atmosphere, John Houghton
6.    IPCC Report, 2007. “Climate Change 2007”, Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA. (Or the latest IPCC report available at any point of time)
7.    “Engineering and General Geology” by Parbin Singh


Same as Text Books