Geography - Climate In India Topics
Geography - Climate In India
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quiz Questions
Q141
Which of the following regional index variations describes the 'negative phase' of the Indian Ocean Dipole (IOD)?
Warmer waters in the western Indian Ocean near Madagascar
Warmer waters in the eastern Indian Ocean near Sumatra and Indonesia
Complete drying of the equatorial surface currents
The appearance of freezing ice sheets across the Persian Gulf
Explanation
A negative IOD is characterized by warmer sea surface temperatures in the eastern Indian Ocean near Indonesia and cooler temperatures in the western Indian Ocean, which often dampens the Indian monsoon.
Q142
The transition from the rainy season to early winter features a combination of high humidity and clear skies, leading to what specific atmospheric condition?
Winter Inversion
October Heat
Pre-Monsoon Surge
Kalbaisakhi Spell
Explanation
The transition period during October brings clear skies and high humidity over a damp landscape, creating the oppressive daytime weather known as 'October Heat'.
Q143
Which mechanism initializes the physical 'Onset' of the Southwest Monsoon over the south-western coast of India?
The strengthening of the Siberian high pressure system
The northward shift of the ITCZ and arrival of moisture-laden cross-equatorial winds
The southward movement of the Subtropical Westerly Jet below Delhi
The cooling down of the core landmass of Central India
Explanation
The northward shift of the ITCZ and the establishment of the low-level Somali Jet Stream carry dense marine moisture, causing the monsoon burst over Kerala.
Q144
Which region of India receives minimal rainfall from the winter-dominant Western Disturbances?
Punjab Plains
Southern Peninsula
Western Uttar Pradesh
Kashmir Valley
Explanation
Western Disturbances affect northwestern and northern India (Punjab, Haryana, Jammu & Kashmir) during winter, leaving Southern India completely unaffected.
Q145
The physical parameter known as Outgoing Longwave Radiation (OLR) is used by the IMD to monitor the onset of the monsoon because a sharp drop in OLR signifies which atmospheric change?
The absolute clearing of low-level stratiform clouds
An intensification of heavy convective cloudiness with high cold tops
A severe drop in localized surface dust concentration
The dissipation of warm maritime fog zones
Explanation
A sharp drop in OLR values indicates the development of deep, high-altitude convective clouds with cold tops, which trap longwave radiation and signal a major monsoon advancement.
Q146
Which microclimatic feature explains why Pune receives significantly less rainfall (around 70 cm) compared to Mumbai (around 220 cm) despite being situated only about 150 km apart?
Pune lacks any vegetative soil cover to retain moisture
Mumbai sits on the windward slope while Pune sits in the leeward rain-shadow zone
A permanent high-pressure inversion cell locks the atmosphere over Pune
The Arabian Sea coastal breeze lacks the momentum to scale the Palghat gap
Explanation
Mumbai is located on the windward side of the Western Ghats mountain range, experiencing massive orographic precipitation, whereas Pune lies on the leeward side within the dry rain-shadow zone.
Q147
During the winter season, why does the northern part of India experience a significantly higher diurnal range of temperature compared to the southern peninsula?
The southern peninsula undergoes permanent geothermal heat release
Northern India has a continental layout with lower marine moderating influence
The trade winds reverse their vertical thermal orientation over Bangalore
The Coriolis effect induces localized mechanical heating over the Deccan
Explanation
Northern India features a continental climate with dry air and clear skies that maximize daytime solar warming and nighttime radiative cooling, whereas Southern India is moderated by warm surrounding seas.
Q148
In the Trewartha climate regional system, the northern alluvial plains of India stretching through Uttar Pradesh and Bihar are designated under which group symbol?
Am
Caw
Bsh
Ar
Explanation
Trewartha classifies the Indo-Gangetic subtropical humid plain belt under the 'Caw' (Subtropical Humid with Dry Winter) climate symbol.
Q149
The unseasonal winter rainfall received over the coastal strip of Odisha and West Bengal during December is structurally linked to which atmospheric system?
The absolute intensification of the continental Siberian high cell
Shallow low-pressure troughs or depressions migrating from the Bay of Bengal
The down-slope spilling of anabatic winds from the Assam hills
The mechanical failure of the subtropical easterly jet core
Explanation
Occasionally, shallow low-pressure troughs or tropical depressions migrate northward along the Bay of Bengal during late winter, causing unexpected rain along the eastern coastline.
Q150
Which core mechanism characterizes the development of a 'Dust Storm' (locally named Andhi) in Rajasthan during early June?
The sudden structural cooling of sub-surface saline aquifers
Intense localized solar heating triggering vertical convective lift of dry soil particles
The premature arrival of the cold polar jet stream below Jodhpur
The moisture saturation inversion over the Sambhar Lake lagoon
Explanation
Intense localized solar heating creates strong vertical convective currents. Due to the extreme dryness of the desert soil, these uplift dry dust particles instead of moisture, creating a dust storm.