Geography - Climate In India Topics
Geography - Climate In India
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quiz Questions
Q181
During El Niño conditions, why does the moisture-laden southwest monsoon wind flow across the Arabian Sea display a typical decrease in strength?
The Coriolis effect drops to absolute zero over India
The Walker Circulation shifts, causing atmospheric subsidence over India
The Himalayan heights decrease thermally in summer months
The Palk Strait experiences an immediate freeze
Explanation
El Niño disrupts the global Walker Circulation, inducing an abnormal sinking air pattern (subsidence) over the Indian Ocean that weakens the land-sea pressure gradient.
Q182
The tracking metric known as 'Madden-Julian Oscillation' (MJO) affects the Indian monsoon by operating through which mechanism?
A stationary polar air mass blocking winter winds
An eastward-travelling equatorial wave of convective cloudiness and rainfall
A sudden geothermal heating inside the Arabian Sea basin
A high-velocity dust storm track moving from the Sahara
Explanation
The MJO is an eastward moving convective cloud band along the equator that periodically enhances or suppresses rainfall over the Indian Ocean depending on its phase.
Q183
Why does the annual rainfall value show a steady operational decrease as one moves from East to West along the Indo-Gangetic Plains of India?
The Coriolis force drops down to near zero values over Patna
The monsoon winds progressively exhaust their moisture content away from the sea
The Aravalli range blocks the entry of winds into West Bengal completely
The local sub-surface geothermal activity increases near Lucknow
Explanation
The Bay of Bengal branch of the southwest monsoon moves westwards along the Ganga plains, progressively losing its moisture content as it travels further away from its marine source.
Q184
The concept of 'Equatorial Indian Ocean Oscillation' (EQUINOO) tracks a specific structural anomaly pattern based on which of the following variables?
The vertical shear velocity of the Subtropical Westerly Jet
Sea surface temperature and convective cloud cover anomalies across the equator
The localized depth profile of saline currents inside Chilika Lake
The total volume flow rate of the Brahmaputra river channel
Explanation
EQUINOO evaluates the sea surface temperature and convective cloud anomalies specifically across the equatorial Indian Ocean between its western and eastern sectors, running parallel to the IOD index.
Q185
The physical movement known as 'Southern Oscillation' represents a baseline see-saw tracking pattern of surface pressure measured between which two specific global meteorological stations?
Honolulu and Mumbai
Tahiti and Darwin
Madagascar and Jodhpur
Zanzibar and Colombo
Explanation
The Southern Oscillation Index (SOI) is calculated using the standardized sea-level pressure differences between Tahiti in the central Pacific Ocean and Darwin in northern Australia.
Q186
Which of the following descriptions accurately defines the 'As' climate type under the Koeppen regional division scheme for the Indian subcontinent?
Tropical monsoon with a short dry winter
Tropical savanna with dry winters
Tropical climate featuring a dry summer season
Humid subtropical with clear summer window
Explanation
In Koeppen's classification, 'As' represents a tropical climate with a distinct dry summer season, which uniquely describes the operational reality of the Tamil Nadu coast (Coromandel Coast).
Q187
The intense nocturnal temperature drop experienced across the sandy expanses of Western Rajasthan during winter is primarily driven by which thermodynamic factor?
High geothermal conduction from sub-surface crustal plates
Low specific heat capacity of sand leading to rapid terrestrial radiative cooling
The unexpected mechanical friction generated by localized dust plumes
Absolute saturation inversion of moisture fields over Jaisalmer
Explanation
Sandy soils have a low specific heat capacity and loose structure, causing rapid solar absorption by day and unobstructed, rapid longwave terrestrial radiative cooling under clear night skies.
Q188
The specific track of the 'Subtropical Westerly Jet Stream' positions its core directly south of the Himalayas during winter due to which baseline planetary mechanism?
The structural thermal collapse of the sub-equatorial low pressure belt
The southward migration of global planetary wind systems following the sun
The unexpected mechanical push generated by the Siberian high-pressure dome
The sudden chemical inversion of upper-stratospheric ozone blocks
Explanation
In winter, the global planetary wind belts migrate southwards following the solar inclination, bringing the westerly jet down over northern India where it bifurcates around the physical barrier of Tibet.
Q189
Which structural parameter shift defines the operational declaration of a formal 'Monsoon Break' across the agricultural heartland of the Indo-Gangetic plains?
The absolute dissolution of upper air westerlies south of Delhi
The northward migration of the low-pressure monsoon trough axis toward the foothills
A sudden sharp drop in sea surface temperatures near the Malabar coastline
The immediate drying up of surface layer soil moisture in Punjab
Explanation
A monsoon break over the plains is characterized by the low-pressure monsoon trough axis moving completely northwards to the Himalayan foothills, causing an end to rain across the plains.
Q190
The specific orographic rainfall layout of India indicates that Agumbe in Karnataka records exceptional precipitation. This location sits on which structural face of the Western Ghats?
The leeward interior rain-shadow slope
The windward escarpment face
The internal structural tectonic graben floor
The peripheral boundary margin near Bangalore
Explanation
Agumbe sits on the windward escarpment face of the Western Ghats, directly forcing the moisture-laden Arabian Sea branch of the southwest monsoon to ascend and release heavy precipitation.