Geography Optional · Paper I · Physical Geography
Climatology Notes · PYQs · Solved Answers
Free notes, every previous year question and the solved answers for Climatology (Paper I, Physical Geography), arranged so you can read a topic and immediately see how UPSC has asked it. Syllabus: Atmosphere, general circulation, air masses, monsoon, climate classification and climate change.
44
Solved PYQs
2013–2026
Years covered
83
Questions listed
21
Free notes
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Free notes Previous year questions Solved answers All Geography Optional units
Paper I · Unit 02
Climatology notes
Topic-wise notes for this unit in syllabus order. Read a topic, then open its previous year questions below.
Free notes
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Air Mass & Air Masses based on Source Regions – UPSC
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Climatic Regions of World – UPSC
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Climatology UPSC: Comprehensive Guide for UPSC Aspirants
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Clouds formation & Types of clouds UPSC (Geography)
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Composition and structure of the atmosphere: Geography UPSC
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Cyclones and Anticyclones UPSC: Geography for UPSC
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Fronts and Types of Fronts – UPSC
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Heat Budget of the Earth UPSC: Geography UPSC
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Insolation and Heat budget of the Earth: UPSC
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Jet Stream UPSC: Geography IAS (Climatology)
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Koppen Climate Classification System – UPSC IAS
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Origin of Atmosphere – UPSC IAS (Geography)
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Precipitation: Types of Precipitation & Types of Rainfall
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Pressure Belts of the Earth – Geography UPSC
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Temperate Cyclone (Extratropical cyclone) – UPSC [Geography]
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Temperature belts of World UPSC: Geography UPSC
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Temperature Inversion: Types & Effects on Weather | UPSC
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Thornthwaite Climatic Classification – UPSC
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Trewartha Climatic Classification – UPSC (Climatology)
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Tropical Cyclone – Formation & Characteristics – UPSC
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Types of Wind – Permanent, Secondary & Local Winds: UPSC
Free practice
Previous year questions: Climatology
Every question UPSC has asked from this unit, year-wise, with a link to its solved answer.
Topic-wise question list
Year-wise question papers
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UPSC Geography Optional Question Paper 2019
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UPSC Mains 2026: Geography Optional Topic-wise Questions {Paper I and Paper II}
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UPSC Geography Optional Question Paper 2026
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UPSC Geography Optional Question Paper 2025
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UPSC Geography Optional Question Paper 2024
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UPSC Geography Optional Question Paper 2023
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UPSC Geography Optional Question Paper 2022
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UPSC Geography Optional Question Paper 2021
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UPSC Geography Optional Question Paper 2020
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Solved PYQ answers: Climatology
Model answers written the way a 300+ scorer writes them, newest exam year first. Members open the full answer; everyone else sees the question and can join the pack.
PYQ Solutions
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Examine the importance of the axis of dilation of air masses in frontogenesis and the origin of Temperate cyclones.
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Describe the general characteristics and structure of a thunderstorm and suggest suitable classification of thunderstorm.
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Define ‘pseudo monsoon’ and explain its spatial distribution.
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Explain the relationship between air masses and local winds.
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Examine the formation of atmospheric tricellular circulation system. Describe how this system has been created considering the Earth a living planet.
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Examine the distribution and balance of energy in the Earth’s atmosphere system.
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Formation of temperate cyclone depends on the condition of axis of dilation. Elucidate.
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Describe latitudinal distribution of Köppen’s classification of world climate.
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Explain air masses and associated weather dynamics. How do air masses influence the weather conditions of the Northern Hemisphere?
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Explain the characteristics and weather conditions associated with ‘Anticyclones’ giving suitable examples.
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What are the causes of origin of local winds? Discuss their significance on prevailing weather and climate in various regions, with suitable examples.
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How does inversion of temperature occur? Explain its significance on local weather with suitable examples.
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What is a pollution dome? Discuss its formation and impacts.
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With suitable examples describe the impacts of the movement of air masses on weather and winds in different parts of the continents.
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The rise of surface temperature brings severe consequences. Elaborate on the potential changes and threats associated with it in the world.
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Describe how short-term variations in temperature are related to the processes of receiving energy from the sun to the Earth’s surface and dissipating it to the atmosphere.
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What are the important factors responsible for Airmass modifications?
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Examine major influencing factors for varied patterns of precipitations on the continents.
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Indicating the causes of lightning, describe the threats associated with it.
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Write a geographical note on Halloween storm.
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Explain how various factors influence the origin and development of the Indian monsoon system.
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Explain the characteristic features of frontogenesis and frontolysis.
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Discuss in detail the tri-cellular model of atmospheric circulation.
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Explain the nature of urban climates and their impact on global environmental change.
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Explain the techniques to calculate potential evapotranspiration suggested by Thornthwaite.
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Explain the origin, progress and retreat of the Indian monsoon and discuss its impact on the Indian economy.
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Critically examine the basis and scheme of climatic classification proposed by G.T. Trewartha.
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Explain the role of evaporation in the hydrologic cycle.
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“Climate change is a reality.” Explain with suitable examples.
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Discuss the forces which govern the air movement on the Earth’s surface.
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Discuss the significance of World Climate Research Programme (WCRP) and its core projects in the understanding of climatic change.
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Compare the origin and weather condition associated with the tropical and temperate cyclones.
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Differentiate between insolation and temperature and explain anomalous temperature.
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Explain the meridional circulation of the atmosphere and its importance in world climate.
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Discuss the basis of Koppen’s climatic classification of ‘Cs’ type of climate.
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What is Potential Evapotranspiration? Explain how it is used in assessing the water balance in an area.
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Discuss as to how frontogenesis contributes to weather instability.
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Discuss the nature and origin of Indian monsoon and recent techniques of its prediction.
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Describe the origin and development of thunderstorms with examples.
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Discuss the salient features of ‘sirocco’ and ‘mistral’.
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Bring out the relationship between climate and vegetation in the Mountain Biome
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Discuss Dew point and various forms of condensation
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With suitable examples, bring out the impact of local winds on the climate of an area
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Write short note: Differentiate Storm Surges and Seiches
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