Which of the following statements most appropriately describes Harmattan?
1. It is a dry and dusty wind that blows n West Africa.
2. It is a cool wind that blows in Savannah region
3. It is the hot wind that blows in equatorial region
Which of the above statement(s) is/are correct?
Which of the following statements most appropriately describes Harmattan?
1. It is a dry and dusty wind that blows n West Africa.
2. It is a cool wind that blows in Savannah region
3. It is the hot wind that blows in equatorial region
Which of the above statement(s) is/are correct?
The correct option is A Only 1
Harmattan wind (the doctor):
A dry, dusty, north-easterly or easterly wind which occurs in West Africa north of the equator. Its effect extends from just north of the equator in January, almost to the northern tropic in July. In West Africa it is known as ‘the doctor’ because of its invigorating dryness compared with humid tropical air. The Harmattan wind stream occasionally extends south of the equator during the northern winter as an upper air wind over the south-westerly monsoon.
The Harmattan season differs from winter, because it is characterized by cold, dry, dust-laden wind, and also wide fluctuations in the ambient temperatures of the day and night. Temperatures can easily be as low as 9 °C (48 °F) all day, but sometimes in the afternoon the temperature can also soar to as high as 30 °C (86 °F), while the relative humidity drops under 10%.
The air is particularly dry and desiccating when the Harmattan blows over the region. The Harmattan brings desert-like weather conditions: it lowers the humidity, dissipates cloud cover, prevents rainfall formation and sometimes creates big clouds of dust which can result in dust storms or sandstorms.
The wind can increase fire risk and cause severe crop damage.
Harmattan wind (the doctor):
A dry, dusty, north-easterly or easterly wind which occurs in West Africa north of the equator. Its effect extends from just north of the equator in January, almost to the northern tropic in July. In West Africa it is known as ‘the doctor’ because of its invigorating dryness compared with humid tropical air. The Harmattan wind stream occasionally extends south of the equator during the northern winter as an upper air wind over the south-westerly monsoon.
The Harmattan season differs from winter, because it is characterized by cold, dry, dust-laden wind, and also wide fluctuations in the ambient temperatures of the day and night. Temperatures can easily be as low as 9 °C (48 °F) all day, but sometimes in the afternoon the temperature can also soar to as high as 30 °C (86 °F), while the relative humidity drops under 10%.
The air is particularly dry and desiccating when the Harmattan blows over the region. The Harmattan brings desert-like weather conditions: it lowers the humidity, dissipates cloud cover, prevents rainfall formation and sometimes creates big clouds of dust which can result in dust storms or sandstorms.
The wind can increase fire risk and cause severe crop damage.
