The Madden-Julian Oscillation (MJO) is characterized by:
A. A northward-moving pattern of convection
B. A stationary pattern of convection
C. A westward-moving pattern of convection
D. An eastward-moving pattern of convection
Answer: Option D
Solution (By JKSSB Mock Tests)
The MJO is characterized by an eastward-moving pattern of enhanced and suppressed convection (thunderstorms) across the Indian and Pacific Oceans, influencing rainfall and wind patterns.
Explanation:
Lake-effect snow occurs when cold, dry air moves over a relatively warm lake, picking up moisture and heat, which leads to intense convection and heavy snowfall downwind of the lake.
Explanation:
Polar maritime air masses are cold and humid, originating over cold ocean waters in polar regions. They often bring cool, cloudy, and wet weather to affected regions.
Explanation:
A positive AO phase is characterized by lower than normal pressure over the Arctic and higher than normal pressure over the mid-latitudes. This tends to confine cold air to the Arctic, leading to milder winters in the mid-latitudes.
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