Describe the pattern of annual precipitation totals across Africa.
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Describe the pattern of annual precipitation totals across Africa.
Briefly describe (but not explain) the relationship between annual average precipitation and the annual variability of precipitation in Africa.
Transcribed Image Text:**Map 2: Variability in Annual Rainfall**
The map illustrates the variability in annual rainfall across different regions of Africa. The color-coded map signifies the percentage variability in rainfall, providing a visual representation of how much the annual rainfall fluctuates in various areas.
- **Color Legend:**
- **Light Yellow (0%)**: Represents areas with no variability in annual rainfall.
- **Golden Yellow (15%)**: Denotes regions where there is a 15% variability in annual rainfall.
- **Light Orange (25%)**: Signifies regions with a 25% variability in annual rainfall.
- **Orange (35%)**: Indicates areas experiencing a 35% variability in annual rainfall.
- **Red (45% ≤)**: Represents regions with the highest variability in annual rainfall, at 45% or more.
**Observation:**
- The northern part of Africa, particularly the Sahara Desert region, shows high variability in annual rainfall (45% or more).
- Regions around central Africa exhibit moderate variability (25% to 35%).
- The southern tip of Africa also shows significant variability, especially in areas like South Africa.
- Coastal areas in the eastern part of Africa have more stable annual rainfall with lower variability percentages (0%-15%).
**Conclusion:**
This map is crucial for understanding the patterns of rainfall variability across Africa. Higher variability in rainfall can significantly impact agriculture, water resources, and overall climate resilience. This information is essential for planning and implementing strategies to mitigate the adverse effects of unpredictable rainfall patterns.
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