Geography - Climate In India Topics
Geography - Climate In India
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quiz Questions
Q151
The standard climatological index baseline used to track a 'Monsoon Break' over India tracks a severe spike in sea-level pressure values over which location setup?
The high peaks of the Karakoram range
The core plains of Central India
The deep ocean floor near Nicobar
The coastal shelf of western Saurashtra
Explanation
During a monsoon break, the sea-level pressure rises significantly over central India, signifying the weakening and northward displacement of the low-pressure monsoon trough.
Q152
Which wind layout variation explains why the winter northeast monsoon winds are completely dry over northern India but cause heavy rainfall over the southern Coromandel Coast?
The winds pick up moisture during their transit over the Bay of Bengal
The high-velocity jet stream forces cold evaporation over Lucknow
A massive geothermal inversion cell changes the moisture angle
The mechanical blockage generated directly by the Aravalli range
Explanation
The northeast trade winds originate over land and are continental and dry over North India. However, as they cross the Bay of Bengal, they pick up massive moisture and strike the Tamil Nadu coast as a rain-bearing system.
Q153
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.
Q154
Which of the following regional stations in India features the lowest thermal variation or annual temperature range due to its high maritime moderating influence?
New Delhi
Thiruvananthapuram
Jodhpur
Patna
Explanation
Thiruvananthapuram, located close to the equator along the Malabar Coast, displays an extremely low annual temperature range (often less than 3–5°C) because of constant marine moderation.
Q155
Under Koeppen's classification system, the symbol 'Cwg' includes a lowercase letter 'g'. What does this 'g' structurally mean for the Indo-Gangetic Plains climate pattern?
Geothermal pressure line alignment
Ganga type temperature curve where peak heat precedes summer rains
Glacial meltwater moisture index
Gulf branch dominant precipitation matrix
Explanation
In Koeppen's layout, the letter 'g' signifies the 'Ganga type' temperature profile, where the hottest season of the year precedes the summer monsoon rainy season.
Q156
The unique structural setup of the 'Somali Current' reverses its flow direction completely during the summer monsoon due to which operational mechanism?
The complete thermal collapse of the Himalayan mountain system
Frictional drag caused by the seasonal shift and reversal of surface winds
The rapid expansion of the polar sub-surface cold core layers
The mechanical alignment of tides within the Palk Strait
Explanation
The massive seasonal wind reversal from the winter northeast trades to the high-velocity summer southwest monsoon winds exerts a strong frictional drag that forces the Somali Current to change direction and flow northward.
Q157
During El Niño years, the weak performance of the Indian monsoon is structurally accompanied by an eastward shift of which deep pacific equatorial convection system?
The Polar High Current Cell
The Rising Branch of the Walker Circulation
The Siberian Anticyclonic Core Corridor
The Localized Hadal Trench Eddy
Explanation
The Walker Circulation cells undergo a massive reorganization where the rising branch of convective precipitation shifts from the Western Pacific/Indonesia region eastward toward the Central/Eastern Pacific Ocean.
Q158
Which structural atmospheric line is responsible for generating the intense winter snowfall across the Western Himalayan ranges of Jammu & Kashmir and Himachal Pradesh?
The Tropical Easterly Current Edge
The Cyclonic Systems of Western Disturbances
The Somali Low Level Inversion Layer
The Inter-Tropical Convergence Front Line
Explanation
The Western Disturbances, embedded in the Subtropical Westerly Jet stream, strike the Western Himalayas and cause heavy snow over high peaks and precipitation over the plains.
Q159
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.
Q160
The oppressive and humid climate condition known as 'October Heat' begins to dissolve rapidly across North India after mid-November due to which mechanism?
The unexpected flash freezing of the Arabian Sea upper surface layers
The drop in solar insolation combined with the entry of cool dry continental winds
The absolute structural dissolution of the Subtropical Westerly Jet stream
The migration of warm equatorial counter-current fields into the Palk Strait
Explanation
The continued southward retreat of the sun brings a sharp drop in solar insolation over North India, drying up surface humidity and allowing cool dry continental winds to establish control.