Tropics of Cancer & Capricorn: UPSC Notes

Tropics of Cancer & Capricorn: UPSC Notes

The Tropics of Cancer & Capricorn are two significant lines of latitude that play a crucial role in Earth’s geography and climate. These imaginary lines mark the northernmost and southernmost points where the sun can be directly overhead at noon. Understanding the Tropics of Cancer and Capricorn is vital for grasping the Earth’s climatic zones, weather patterns, and geographical distinctions. These tropics mark the boundaries of the tropics, an area known for its hot and humid climate. They are also instrumental in defining the seasons and influencing the weather patterns that affect many regions of the world. The Tropics of Cancer and Capricorn have been focal points in geography, navigation, and even ancient cultures, marking the sun’s position during solstices.

  • The Tropic of Cancer is located at 23.5°N latitude.
  • The Tropic of Capricorn is located at 23.5°S latitude.
  • Both lines are essential in defining Earth’s tropical zone.
  • The tropics are characterized by warm temperatures year-round.
Tropics of Cancer & Capricorn: UPSC Notes

The Tropic of Cancer

The Tropic of Cancer is located in the Northern Hemisphere at 23.5° north of the Equator. This line represents the northernmost point where the sun is directly overhead during the summer solstice, which occurs around June 21st each year. The Tropic of Cancer passes through several countries, including Mexico, Egypt, India, and Saudi Arabia. This topic is crucial in defining the boundary of the Earth’s tropical zone, which is characterized by warm temperatures throughout the year.

Geographical Significance

The Tropic of Cancer is significant in understanding Earth’s climatic zones. Regions located near this tropic experience extreme heat, particularly during summer. The positioning of the Tropic of Cancer also affects the length of daylight and the angle of the sun’s rays, contributing to the seasonal variations in temperature.

The Tropic of Capricorn

The Tropic of Capricorn lies at 23.5° south of the Equator in the Southern Hemisphere. It marks the southernmost point where the sun can be directly overhead during the winter solstice, around December 21st. The Tropic of Capricorn crosses countries such as Australia, Brazil, and Namibia. Like its northern counterpart, this tropic plays a vital role in shaping the climate and seasons of the regions it passes through.

Climatic Influence

The Tropic of Capricorn has a profound impact on the climate of the regions it traverses. Areas close to this line experience hot and arid conditions, particularly in desert regions like the Australian Outback. The Tropic of Capricorn also defines the southern boundary of the tropics, influencing rainfall patterns and seasonal changes.

Tropics of Cancer & Capricorn: UPSC Notes

Difference Between Tropic of Cancer and Capricorn

FeatureTropic of CancerTropic of Capricorn
Latitude23.5° North of the Equator23.5° South of the Equator
HemisphereNorthern HemisphereSouthern Hemisphere
Sun’s PositionThe sun is directly overhead during the June SolsticeThe sun is directly overhead during the December Solstice
Climate InfluenceInfluences the climate of the Northern Hemisphere’s tropical and subtropical regionsInfluences the climate of the Southern Hemisphere’s tropical and subtropical regions
Countries it Passes ThroughPasses through countries like India, Saudi Arabia, Egypt, MexicoPasses through countries like Australia, Brazil, Madagascar, Namibia
Day LengthLongest day of the year occurs in JuneLongest day of the year occurs in December
Associated SeasonMarks the beginning of summer in the Northern HemisphereMarks the beginning of summer in the Southern Hemisphere
SignificanceIt is the northernmost point where the sun can be directly overheadIt is the southernmost point where the sun can be directly overhead

Conclusion

In conclusion, the Tropics of Cancer and Capricorn are fundamental in shaping the Earth’s climate and geography. Understanding the difference between Tropic of Cancer and Capricorn helps in comprehending the variations in climate and seasons across the globe. These tropics serve as key reference points in geography, marking the boundaries of the tropical zone and influencing the lives of millions of people living within these regions.

Tropic of Cancer & Capricorn UPSC Notes 
The Tropic of Cancer is located at 23.5° North latitude, while the Tropic of Capricorn is at 23.5° South latitude.
The Tropic of Cancer marks the northernmost point where the sun is directly overhead during the June Solstice.
The Tropic of Capricorn signifies the southernmost point where the sun is directly overhead during the December Solstice.
These tropics influence the climate and weather patterns in the tropical and subtropical regions they pass through.
The Tropics of Cancer and Capricorn are significant markers for understanding Earth’s axial tilt and its impact on seasons.
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