| MASEGO MOCHOARI2008027750
[GEO 234 :FLOODING IN SOUTH AFRICA]|
THIS ASSIGNMENT GIVES AN OVERVIEW OF FLOODING AND ITS IMPACTS ON SOUTH AFRICA,THE ASSIGNMENT GIVES A BRIEF FORCUS OF FLOODING IN THE PROVINCE OF KWAZULU-NATAL|
TABLE OF CONTENT PAGE 1 INTRODUCTION 2 2 DEFINING FLOODING 2 3 WHAT IS LA NINA 2 4 IMPACT OF FLOODS 2-3 5 MEASURES PUT IN PLACE TO HANDLE FLOODING 3 6 HUMAN IMPACT ON FLOODING 3-4 7 CONCLUSION 4 8 REFERENCE LIST 5 9
La Nina influenced flooding took place in South Africa on January 24 of 2011.Heavy rain caused the widespread flooding in South Africa. This heavy rainfall is common during La Nina summers in South Africa. rainfall for the month of January had been reported to be nearly 10 times the average in parts of the country. Other countries besides South Africa had also been hit by heavy rain and La Nina was blamed for the flooding across Australia and the Philippines. More than 100 people lost their lives in floods that took place across South Africa. The majority of the deaths were in KwaZulu-Natal and damages were estimated at R300 million. By the end of January ,heavy rain had been widespread across the country and eight of South Africa's nine provinces were declared disaster areas by the South African government. This assignment takes a look at what flooding is all about,it explains what La Nina is and looks at the impact floods have. This assignment focuses on flooding in South Africa with particular focus on flooding in the province of KwaZulu-Natal. Sub-headings have been used for easy navigation of the assignment. 1.2 DEFINING FLOODING
Flooding from a hydrological sense can be defined stricty as a rise,which is usually brief in the water level of a water body ,this water body can be a river,dam and accumulated rainwater in a failed drainage system.(national geographic) The term flood simply implies a progressive and abnormal increase in the elevation of surface level of a water body until it reaches a maximum height,at this point the water level will slowly drop back to its normal level, at this point it is important to state that these actions that take place usually take place within a certain period of time,therefore floods are episodic events where water rises and then eventually drops back to its normal surface level. Another characteristic of flooding is that flooding may result in the overflowing of water onto areas which are not normally submerged in water.(national geographic) 1.3 WHAT IS LA Nina
La Nina conditions occur when Pacific trade winds blow stronger than usual, this pushes sun-warmed surface water further west and increases the upwelling of cold water in eastern regions. Together with the atmospheric effects of southern oscillation, cooler water brings drought to western South America and heavy rains to south Africa ,eastern Australia and Indonesia.(national geographic) 1.4 IMPACT OF FLOODS
South Africa is a producer of corn, soybeans, and wheat. Farmers usually welcome wetter-than-normal conditions, However the heavy rains that took place were so harsh they damaged crops. In addition to the damaged crop,field harvesting was at a halt as the fields were saturated .(south African health review) Such conditions have a negative impact on south Africa’s economy,this is because as a result of the floods damaging crops a shortage...