Geography - Climate In India Topics
Geography - Climate In India
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quiz Questions
Q111
Which tracking factor measures the sea surface temperature gradient between the tropical western and eastern Indian Ocean, serving as an index for monsoon health?
Southern Oscillation Index
Indian Ocean Dipole (IOD)
Walker Circulation Margin
Hadley Cell Gradient
Explanation
The Indian Ocean Dipole (IOD) evaluates the difference in sea surface temperatures between the western Indian Ocean (near Africa) and the eastern Indian Ocean (near Indonesia).
Q112
What atmospheric process initializes the retreat of the summer monsoon away from northwest India during early September?
The strengthening of the equatorial counter-current
The southward migration of the sun and weakening of the thermal low
The sudden freezing of the Tibetan Upper Tropospheric core
The emergence of a hot current in the Palk Strait
Explanation
The apparent southward migration of the sun weakens the thermal low-pressure trough over northwest India, leading to a reversal of the pressure gradient and wind direction.
Q113
The core of the low-level cross-equatorial monsoon airflow that intensifies across the Arabian Sea is meteorologically named after which researcher?
Walker Jet
Findlater Jet
Hadley Flow
Halley Stream
Explanation
The low-level cross-equatorial jet stream that steers dense moisture toward India's west coast is famously known as the Findlater Jet (or Somali Jet).
Q114
Which structural atmospheric index evaluates the monthly pressure differences between Tahiti and Darwin to monitor the Southern Oscillation paired with El Niño?
Oceanic Niño Index (ONI)
Southern Oscillation Index (SOI)
Indian Ocean Dipole Index
Madden-Julian Phase Score
Explanation
The Southern Oscillation Index (SOI) tracks pressure variations between Tahiti (Eastern Pacific) and Darwin (Western Pacific/Indian Ocean) to assess monsoon trends.
Q115
Under the Koeppen climate layout of India, the interior parts of Western Maharashtra and Interior Karnataka fall into which symbol classification?
Amw
Bshw
Cwg
As
Explanation
The dry semi-arid rain-shadow core of the Indian Peninsula is officially classified under the 'Bshw' (Semi-Arid Steppe) climate symbol.
Q116
What physical parameter drop over the Indian Ocean during El Niño years directly explains the typical reduction in summer monsoon rain?
The land-sea thermal pressure contrast
The rotational speed of the earth over Delhi
The depth of the oceanic trench near Chennai
The localized salinity concentration of Chilika Lake
Explanation
El Niño causes a drop in the land-sea thermal contrast as well as a weakening of the low-pressure anomaly over the Indian subcontinent, suppressing convective cloud development.
Q117
Which of the following describes the behavior of the sub-tropical westerly jet stream across Asia when the summer monsoon sets in over mainland India?
It shifts south to run parallel to the Vindhyas
It shifts completely north of the Tibetan Plateau
It drops down to the surface level over the Thar desert
It breaks into multiple cyclonic eddies in the Bay of Bengal
Explanation
The sub-tropical westerly jet stream shifts completely north of the Tibetan Plateau, clearing the Indian subcontinent to allow the entry of the southwest monsoon flow.
Q118
The dry, dust-laden summer winds named 'Loo' display their maximum operational intensity and frequency during which specific timeframe?
January and February
May and June
August and September
October and November
Explanation
The Loo blows with peak intensity across Northern India during the hot dry months of May and June, before the arrival of the monsoon rains.
Q119
Which spatial zone in India serves as the primary gateway where the 'Bay of Bengal branch' of the southwest monsoon splits to enter the mainland?
The Gulf of Khambhat coastline
The West Bengal and Bangladesh Delta margin
The Rann of Kachchh salt flat
The Lakshadweep island shelf
Explanation
The Bay of Bengal branch hits the coast of Bangladesh and West Bengal, splitting into one arm that climbs the Northeast Hills and another deflected along the Ganga plains.
Q120
What is the baseline structural reason for the sharp drop in temperatures across North India during the transition from November to December?
The absolute cessation of the Earth's planetary rotation
Southward solar migration and cold continental air mass advection
The structural inversion of the equatorial oceanic conveyor belt
The thermal heating of the coastal continental shelf near Mumbai
Explanation
The southward apparent migration of the sun reduces solar insolation, while cold continental air masses from the high latitudes flow into Northern India under clear skies.