Enhancing Erosion in the Himalayas
Part of: GS-I- Geography (PT-MAINS-PERSONALITY TEST)
Scientists and students from the Wadia Institute of Himalayan Geology (WIHG) have explored the Zanskar catchment area. The study was conducted to understand the landform evolution in transitional climatic zones, using morphostratigraphy, Optically Stimulated Luminescence (OSL) dating and provenance analysis of landforms like valley fill terraces and alluvial fans
Balancing priorities
Context:
Landslide in Idukki district of Kerala has claimed 22 lives thus far and rendered several families homeless.
Landslides in Kerala:
Landslips or landslides have been a recurrent phenomenon in the Western Ghats state of Kerala.
Data from the Geological Survey of India shows that Kerala has experienced 67 major landslide events and several minor ones from 1961-2013.
In 2019, Wayanad district witnessed multiple landslides that claimed several liv
Glacial Lake Outburst Flooding
A glacial lake outburst flooding (GLOF) occurs when a breach in the glacial lake causes a sudden surge downstream.
Such lakes are formed when glaciers erode land, melt and over time become a large mass of water in the depression formed, and these can be breached, causing floods downstream.
In India the status of glacial lakes is checked by Central Water Commission.
The Winter Solstice is a phenomenon when the Northern Hemisphere is tilted furthest away from the sun, resulting in the longest night and the shortest day of the year.
It occurs annually on December 21 or 22. It marks the 1st day of winter.
The Earth reached its perihelion, or the closest point in its orbit around the Sun recently.
Perihelion occurs in early January, about 2 weeks after the Winter Solstice.
The Earth reached its perihelion, or the closest point in its orbit around the Sun recently.
Perihelion occurs in early January, about 2 weeks after the Winter Solstice.