Atmosphere & Solar Radiation Explained | Heat Budget | UPSC Geography
Автор: Footnotes UPSC
Загружено: 2026-01-12
Просмотров: 7
In this video, we discuss the composition and structure of the atmosphere and explain how solar radiation (insolation) controls the Earth’s heat balance from a UPSC Physical Geography perspective.
The lecture covers the variability and spatial distribution of insolation, along with the mechanisms of heat transfer and the concept of Earth’s heat budget, which are repeatedly asked in UPSC Prelims and Mains.
Topics covered:
Composition of the atmosphere
Structure of the atmosphere (troposphere to exosphere)
Solar radiation and insolation
Variability of insolation at Earth’s surface
Spatial distribution of insolation
Heat transfer mechanisms:
Conduction
Convection
Advection
Earth’s heat budget
This video is useful for:
UPSC CSE (Prelims & Mains)
NCERT-based revision for beginners
📘 Syllabus: UPSC GS Paper 1 – Physical Geography
📌 Source base: NCERT + standard climatology concepts
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