Correct option is C
Katabatic Winds:
· Katabatic winds are downslope winds caused by the cooling of air at higher elevations.
· They typically occur during
clear nights when radiative cooling causes dense, cold air to descend along mountain slopes.
· Statements
(a) and
(b) are correct.
Anabatic Winds:
· Anabatic winds, also known as upslope winds, occur during
clear days when the sun heats the mountain slopes.
· This heating causes the air near the slopes to rise, creating upslope wind movement.
· Statements
(d) is correct.
Incorrect Statement:
· Statement
(c) is incorrect because anabatic winds are not caused by
differential cooling; rather, they are caused by the
differential heating of mountain slopes and the air above.
Information Booster: 1. Katabatic Winds:
· Examples: Mistral (France), Santa Ana (USA).
· Stronger at night and in winter.
2. Anabatic Winds:
· Common during sunny afternoons in mountainous regions.
· Important for gliders and paragliders.
3. Differentiation:
· Katabatic Winds: Cool air flows downward.
· Anabatic Winds: Warm air rises upward.
4. Local Effects:
· Influence microclimates in valleys and mountain ranges.
5. Formation Mechanism:
· Katabatic: Radiative cooling at night.
· Anabatic: Solar heating during the day.
Additional Knowledge: · Katabatic and Anabatic Dynamics:
· Katabatic winds can lead to frost pockets in valleys due to cold air pooling.
· Anabatic winds can create cloud formation along ridges due to moist air being lifted.
· Practical Impacts:
· Katabatic winds are hazardous for aviation due to turbulence.
· Anabatic winds help in slope agriculture by maintaining airflow.
· Other Examples of Katabatic Winds:
· Bora (Adriatic Sea), Greenland winds, Antarctic katabatic winds.
· Anabatic Winds in Ecosystems:
· Help in transporting seeds and insects uphill.