Geography

Dam Management in India

Dams Image

Dam means any artificial barrier and its appurtenant structure constructed across rivers or tributaries thereof with a view to impound or divert water which also include barrage, weir and similar water impounding structures. Central Water Commission (CWC) compiles and maintains the nationwide register of Large Dams i.e., the National Register …

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Zoning of flood plains

Why in news: Punjab has been reeling under floods for well over a month now and the proposed solution to this is zoning of flood plains. Significance of flood plains: A river expands and contracts naturally over seasons and in different years. A flood plain is an area adjacent to the river which normally gets flooded when the …

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Heat waves in Mediterranean Sea

Salient features of world’s physical geography. Extreme heat has plagued the Mediterranean for weeks. What are marine heat waves? A marine heat wave (MHW) is an extreme weather event. It occurs when the surface temperature of a particular region of the sea rises to 3 or 4 degree Celsius above the average temperature for at least five …

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Lake Titicaca

Syllabus: World Geography Context Dipping water levels About the Lake In the Andes on the border between Bolivia and Peru. Highest of the world’s large lakes, world’s highest navigable sea and largest in South America after Venezuela’s Lake Maracaibo Issues Within 25 cm of their all-time low record in 1996 …

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PERMAFROST

Amidst Rising Global Temperatures, thawing permafrost is likely to destabilize thousands of industrial sites and linked contaminated areas in the Arctic. The arctic is dotted with industrial facilities such as oilfields and pipelines, mines and military bases. The consequences of global warming and thawing permafrost were not taken into account for long and permafrost was considered as a …

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HEATWAVE IN INDIA

The global warming trends over the Indian region are very different. An assessment of climate change over the Indian subcontinent, published by the Ministry of Earth Sciences in 2020, said annual mean temperatures had risen by 0.7 degree Celsius from 1900. This is significantly lower than the 1.59 degree Celsius rise for land temperatures across the world. Why is warming over India lower? The increase in …

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CYCLONE MOCHA

Odisha is preparing for the first cyclone of 2023, Cyclone Mocha. It is expected to form over the Bay of Bengal. Odisha is particularly vulnerable to cyclones. The 1999 super cyclone that hit Odisha was one of the deadliest natural disasters in Indian history. The cyclone made landfall with wind speeds of up to 260 kmph, causing massive destruction and claiming …

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STRAIT OF HORMUZ

The Iranian Revolutionary Guard seized a Panamanian-flagged oil tanker in the strategic Strait of Hormuz. Key details: The Strait of Hormuz is a strait between the Arabian Gulf and the Gulf of Oman. It provides the only sea passage from the Arabian Gulf to the open ocean. It is one of the world’s most strategically important choke points. …

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