Geography - Climate In India Topics
Geography - Climate In India
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quiz Questions
Q161
The baseline operational definition of the 'Monsoon Trough' refers to a low-pressure extension of which global pressure belt over the Indian landmass?
Subtropical High Pressure Belt
Inter-Tropical Convergence Zone (ITCZ)
Subpolar Low Pressure Belt
Polar Easterly Wind Cell
Explanation
The Monsoon Trough is a modified seasonal manifestation of the Inter-Tropical Convergence Zone (ITCZ) shifting northwards over the Indian subcontinent during summer.
Q162
Which of the following cities features a highly continental climate pattern, recording extreme thermal differences between summer and winter?
Mumbai
New Delhi
Kochi
Vishakhapatnam
Explanation
New Delhi, situated deep inside northern India far away from ocean moderation, experiences a high annual range of temperature, typical of a continental climate.
Q163
Under the Thornthwaite climate classification system, which letter symbol designates the perhumid climate type found in the Western Ghats and Northeast India?
C
A
D
E
Explanation
In Thornthwaite's system based on moisture index and evapotranspiration, the uppercase symbol 'A' designates the perhumid rainforest style climate region.
Q164
The physical process of 'Upwelling' along the Somali coast during summer alters the Indian monsoon dynamic through which atmospheric consequence?
It raises the marine boundary layer temperature to extreme levels
It cools the western Arabian Sea, influencing low-level cloud dynamics
It forces an immediate structural freeze of the surface layer
It reduces the global Coriolis force tracking metric to zero
Explanation
Coastal upwelling brings cold subsurface water to the surface off Africa, creating a cold Somali Current that modulates the sea surface temperatures of the western Arabian Sea and stabilizes the overlying air mass initially.
Q165
During a typical La Niña event, how does the convective rainfall setup change over the equatorial western Pacific Ocean and maritime India?
Convective heating collapses entirely across the equator
Convection intensifies significantly, boosting monsoon precipitation
Air masses undergo absolute mechanical stabilization
Moisture advection angles tilt away into the Atlantic
Explanation
La Niña enhances convective activity and low-pressure anomalies over the western Pacific and eastern Indian Ocean, resulting in a stronger Walker Circulation and above-normal monsoon rain over India.
Q166
Which high-altitude tracking wind index brings unseasonal winter hailstorms to the states of Madhya Pradesh and Maharashtra?
The absolute dissolution of the Somali low-level jet
The interaction of Western Disturbances with moist easterly waves over Central India
The southward plunges of Siberian anticyclonic winds
The localized thermal heating inside the Palk Strait corridor
Explanation
When Western Disturbances interact with moist easterly winds moving up from the Bay of Bengal over central India, they induce strong convective instability leading to winter hailstorms.
Q167
Why does the city of Jodhpur record a high variance in its rainfall schedule, showing extreme instability from year to year?
It lacks the baseline Coriolis effect tracking capability
It is located on the peripheral arid margin where the monsoon system is highly sensitive
The Aravalli mountains completely isolate its boundary thermally
The local soil features excessive sub-surface iron oxide content
Explanation
Jodhpur lies on the margins of the arid Thar Desert where the monsoon system is structurally thin and highly sensitive to subtle variations in global indices like ENSO and IOD.
Q168
The physical cooling down of the northern landmass of India during winter induces a shift in surface pressure fields, establishing which dominant surface wind profile?
Humid Southwesterly maritime monsoon currents
Dry offshore Northeast Trade winds
High-velocity equatorial counter surges
Overcast marine stratiform sea breezes
Explanation
The high pressure established over North India during winter drives dry, offshore Northeast Trade winds across the majority of the country.
Q169
The dynamic low-pressure anomaly known as the 'Monsoon Low' that forms over the Bay of Bengal during July is steered west-northwestwards across India by which wind system?
Subtropical Westerly Jet Stream
Tropical Easterly Jet Stream
Northeast Trade Winds
Somali Low-Level Jet
Explanation
The upper-tropospheric Tropical Easterly Jet Stream (TEJ) steers monsoon depressions and low-pressure systems from the Bay of Bengal west-northwestwards across the Indian mainland.
Q170
Which of the following regional pockets in the interior Peninsular India acts as a dry island, recording less than 50 cm of annual rainfall due to double rain-shadow effects?
The Assam Valley Basin
Marathwada and Rayalaseema Interiors
The Konkan Plain Strip
The Tripura Foothills Margin
Explanation
The central core of the Deccan Plateau, specifically the Marathwada region of Maharashtra and the Rayalaseema region of Andhra Pradesh, forms a severe dry pocket due to orographic blocking by both the Western and Eastern Ghats depending on the wind branch.