Atmosphere Layers: UPSC Mind Map
Interactive mind map for types of atmosphere layers , covering key concepts, relationships, and facts relevant to UPSC Prelims and Mains preparation.
Key Concepts in this Mind Map
- Atmosphere Layers - UPSC Geography
- * Troposphere
- * Altitude: 0-12 km (approx), thicker at equator
- * Temperature: Decreases with height (lapse rate ~6.5°C/km)
- * Phenomena: All weather events (clouds, rain, storms)
- * Features: Contains ~75-80% of atmospheric mass, tropopause (boundary)
- * Stratosphere
- * Altitude: 12-50 km (approx)
- * Temperature: Increases with height (due to ozone absorption)
- * Features: Ozone layer (20-30 km) absorbs UV radiation
- * Relevance: Jet aircraft fly here (stable conditions), polar stratospheric clouds
- * Boundary: Stratopause
- * Mesosphere
- * Altitude: 50-80 km (approx)
- * Temperature: Decreases with height (coldest layer, up to -90°C)
- * Phenomena: Meteors burn up here
- * Boundary: Mesopause
- * Thermosphere
- * Altitude: 80-600 km (approx)
- * Temperature: Increases with height (highly variable, very hot but low density)
- * Features: Ionosphere (part of thermosphere, 80-400 km) for radio wave reflection
- * Relevance: Auroras (Northern/Southern lights), ISS orbits here (approx 400 km)
- * Exosphere
- * Altitude: Above 600 km, extends to ~10,000 km
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