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SUVAN SHARMAAIR 148· 2025

Question 15GS1GS2

Explain the concept of rain shadow effect. How does it influence the distribution of precipitation and vegetation across mountain ranges?

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Main Body

Rain shadow effect refers to consequence of reduced rainfall occurring on the leeward side. It happens because of downpour of rainfall due to orographic factors which leaves little to no moisture for the leeward side. [Fig. Rain shadow effect] Effects on distribution of precipitation & vegetation across mountain regions -->

Vast mountain ranges causes a differential outpour of rainfall. B As shown in Fig B, rain shadow effect occurs in the leeward side of Western Ghats. C While wayward side of Western Ghats receives rainfall to the range 7000 mm, the leeward side receives rainfall of the range 100-200 cm. iv eg Western coast receives higher rainfall than areas like Latur & Aurangabad Maharashtra. Likewise one of the branches of Monsoon which passes through Aravalli hills, travel parallel to the hills which also contribute to the rainshadow effect. (5) Vegetation thereby is Thorny shrub masked by lack of evergreen extra. v Similarly, in Southern India's rainshadow areas of Telangana & Karnataka, dry deciduous vegetation is present. Hence, rain shadow effect is not just a geographical phenomena rather it affects the socio economic

enlosed by mountains. (5) Likewise, one of the branches of Monsoon which passes through Aravalli hills, travel parallel to the hills which also contribute to the rainshadow effect. (5) Vegetation thereby is Thorny shrub marked by lack of evergreen extra. v Similarly, in Southern India's rainshadow areas of Telangana & Karnataka, dry deciduous vegetation is present. Hence, rain shadow effect is not just a geographical phenomena rather it affects the socio economic

[Continued from previous answer on rain shadow effect] Not visible/continuation of Q15 with additional analysis on geographic and socio-economic implications

274 words1 paragraphs

Diagram

Mountain diagram showing windward side with clouds and rainfall, leeward side with dry conditions, and labeled areas showing lack of rainfall and moisture

Topper

SUVAN SHARMA

AIR 1482025

Subject & Paper

GS1GS2

Topic

Geography

Climate and Precipitation

Rain Shadow Effect

Writing Stats

274

Total words

1

Paragraphs