For a place to be placed in Koppen's A group, the mean temperature of its coldest month must be at least
- A.10 degrees Celsius
- B.15 degrees Celsius
- C.18 degrees Celsius
- D.22 degrees Celsius
Correct answer
Explanation
The correct answer is C, 18 degrees Celsius. Koppen set the boundary of the tropical group at a mean temperature of 18 degrees Celsius in the coldest month, the value below which many tropical plants cannot thrive, and the whole of peninsular India as well as both coasts clears it. Option A is wrong because 10 degrees Celsius is the threshold used at the other end of the scale, for the warmest month, to separate the polar E group from the rest. Option B is wrong because 15 degrees Celsius appears nowhere as a limit in the scheme. Option D is wrong because 22 degrees Celsius is used in some subdivisions of the C and D groups for the warmest month, not for the tropical boundary. Learn the two anchor figures together: 18 degrees for the coldest month in group A and 10 degrees for the warmest month in group E.
Read the full article: Koppen Climatic Regions of India: Types, Letters and Areas
Practice Questions
View allKoppen's classification of climate is based primarily on which two elements?
- A.Air pressure and wind direction
- B.Monthly mean temperature and precipitation
- C.Latitude and altitude
- D.Soil type and drainage
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Koppen, who was a botanist as well as a climatologist, held that natural vegetation is the best single index of climate, and he fixed his boundaries using the monthly values of temperature and rainfall that vegetation belts seem to follow.
Read the full explanation →In Koppen's scheme, which climatic type is found on the west coast of India south of Goa?
- A.As
- B.Aw
- C.Amw
- D.Cwg
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The code stands for a monsoon climate with a short dry season: the Malabar coast is hot in every month, so the capital A applies, and it receives extremely heavy rain from the south-west monsoon, leaving only a brief dry spell.
Read the full explanation →The As type of climate, a monsoon climate with dry summer, is found in India only along the
- A.Coromandel coast of Tamil Nadu
- B.Konkan coast of Maharashtra
- C.Coast of Odisha
- D.Coast of Gujarat
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This coast lies in the rain shadow of the Western Ghats while the south-west monsoon blows, so its summer is comparatively dry, and it gets most of its rain between October and December from the retreating monsoon and the north-east monsoon, which is exactly what the small letter s records.
Read the full explanation →In Koppen's classification of Indian climates, the code BWhw, the hot desert type, is given to
- A.Eastern Rajasthan
- B.Extreme western Rajasthan
- C.Southern Punjab
- D.North-western Gujarat
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The capital B marks a dry climate, the capital W marks the arid or desert subdivision, h marks a hot climate and the last w marks a dry winter, so the whole code describes the heart of the Thar, the driest part of the country.
Read the full explanation →Which Indian state alone is given the Dfc code, a cold humid winter with a short summer?
- A.Sikkim
- B.Himachal Pradesh
- C.Arunachal Pradesh
- D.Meghalaya
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The capital D marks a cold snow forest climate in which the coldest month falls below minus three degrees Celsius, f marks the absence of a dry season and c marks a short summer with fewer than four months above ten degrees Celsius, and in the standard table for India…
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