Which one of the following climatic types (Köppen’s Scheme) is best su

Which one of the following climatic types (Köppen’s Scheme) is best suited to describe the climate of the western fringe of Rajasthan ?

Amw
Aw
Bwhw
Cwg
This question was previously asked in
UPSC CDS-1 – 2022
The climate of the western fringe of Rajasthan, which includes the Thar desert, is best described by Köppen’s climatic type BWhw.
According to the Köppen climate classification, ‘B’ denotes arid or dry climates. ‘BW’ signifies a desert climate. The third letter, ‘h’, indicates a hot climate (average annual temperature is above 18°C). The fourth letter, ‘w’, indicates a dry winter (the wettest month in summer receives at least ten times as much precipitation as the driest month in winter). Western Rajasthan is a hot desert region with most rainfall occurring during the monsoon season in summer, making the winters relatively dry.
Amw and Aw are tropical wet or savanna climates, respectively. Cwg is a temperate climate with dry winter, often found in the Gangetic plains. These are not characteristic of the arid western fringe of Rajasthan.
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