Geography Part A

Name 3



Question1: Regions with the same Mediterranean climate as the coastalCalifornia and San Francisco

Regionsthat share the Mediterranean climate have clear blue skies, drysummers, brilliant sunshine, and average annual rainfall of 10-40inches. Regions of central Chile (including the city of Santiago deChile) acquire the Mediterranean climate from offshore current knownas Humboldt. Regions of Southwestern cape (such as Cape Town) arebrown by Benguela current. In the case of the regions of south andwest Australia (including Adelaide) an offshore current known asLeeuwin flow southwards.

WhySan Francisco has wet winters and dry summers

Wetwinters and dry summers in San Francisco can be attributed to specialclimatic conditions. For example, the region experiences an averagetemperature of above 22 0C, which leads to hot and dry months. During the cold months,temperatures fall to -3 0C, leading to condensation of moisture and wet winters.


Question2: relationship between relative humidity and dew point temperature

Relativehumidity and dew point temperature are positively related. Forexample, dew point temperature determines the amount of moisture thata parcel of air can hold. For example, at low temperature a parcel ofair can hold 2 parts of vapor (humidity), but this increases to 6 and12 parts as temperature increases.

Question3: The likelihood of a cyclone striking Philippines or Portugal

Philippineis more exposed to hurricanes than Portugal because of the existenceof warm oceans in the western regions the Pacific Oceans. Tropicalcyclones form when warm water in ocean interacts with air to create astorm, which explains why Philippine is the most at risk region inthe world.

Question4: How relative humidity can decrease without a change in actualamount of water vapor in the air

Relativehumidity is a function of temperature and the moisture content.Consequently, an increase in temperature leads to a decrease inrelative humidity, even without affecting the quantity of the watervapor. Therefore, either of the factors that determine the relativequantity can affect its level without necessarily changing the vaporcontent.

Question5: Occluded front and why the formation of the occluded frontindicates the death of mid-latitude cyclone

Occludedfronts result from the rapid flow of cold fronts while warm frontsare associated with mid-latitude cyclone. The cold front overtakes awarm front and then zips up a mid-latitude cyclone because s typicalpattern that is found in the mid-latitude is described as a coldfront that is preceded by the warm front. A warm air that separatesthe warm and the cold front becomes pinched when occlusion within themid-latitude starts. This results in temperature inversion thatprevents uplifting of the atmosphere, leading to a stable atmosphere.This results in death of the mid-latitude cyclone.

Question6: Description of the general location, temperature, precipitationand the main controls of tropical wet climate

Tropicalwet climate is located in the Congo River Basin, Amazon River Basin,Central America, and east coast of Brazil, South Bangladesh,Philippine, coast of Madagascar, and east of India. High temperaturesreach 32 0C and 22 0C at night. Monthly rainfall is evenly distributed and the annualprecipitation reaches 1,500 mm. Some of the control weather factorsinclude a high input of solar radiation constant and highest monthlyprecipitation.

Question7: Description and explanation of most significant reasons for thedesert climate in Baja, Mexico

Bajais a long finger that extends towards the south border of California.Most of Baja’s length is separated from the mainland of Mexico bythe Gulf of California and its backbone is comprised of severalranges. Therefore, the existence of the mountain ranges to the eastand to the west is the major cause of the desert climate. To thewest, the Vizcaino Desert receives some moisture laden air, butconditions are not sufficient to make precipitation. To the east, thedesert region of San Felipe does not receive any moisture, leading tothe formation of a dry desert climate.