About Polar Stratospheric Clouds (PSC)
Context: Recently, weather watchers have captured images of rare Polar stratospheric clouds over Scotland, northern England and the West Midland. Relevance: GS I: Geography Dimensions of the Article: About Polar Stratospheric Clouds (PSC): Impacts: -Source: India Today
Arctic Report Card 2023: Key Highlights
Context: Recently, the National Oceanic and Atmospheric Administration (NOAA) has released its 18th Annual Arctic Report Card, highlighting the profound impact of extreme weather and Climate Events on the Arctic. Relevance: GS I: Geography Dimensions of the Article: Arctic Report Card 2023: Key Highlights Record Summer Warmth: Impact of Extreme Weather: Thawing Permafrost and Greenhouse Gas Release: Decline […]
Indian Summer Monsoon Rainfall (ISMR) Study
Context: A recent study published by Advancing Earth and Space Sciences (AGU) explores the geographical trapping of synchronous extremes during the Indian Summer Monsoon Rainfall (ISMR) from 1901 to 2019. The findings indicate significant alterations in the ISMR due to global warming, emphasizing the consistent presence of interconnected extreme hubs in Central India. This suggests […]
Overview of Terai
Context: In a first, a tiger was spotted in the Shaukiyathal forest near Jageshwar Dham, Almora, at an elevation of over 6,000 feet in the Terai region of Uttarakhand. Relevance: GS I: Geography Overview of Terai: Geographical Location: Terai, also known as Tarai, is a lowland belt situated along the Nepal-India border, running parallel to the […]
India’s Extreme Rainfall ‘Corridor
Context: The characteristics of the Indian monsoon, such as its onset, withdrawal, active and break periods, and the presence of low-pressure systems are widely recognized. Global warming has impacted every aspect of the monsoon, leading to a consistent decline in total seasonal rainfall for over seven decades. Relevance: GS-1-Physical Geography Mains Question: The impact of […]
About The Mount Marapi
Context: Recently, Indonesia’s Mount Marapi in West Sumatra province erupted, spewing white-and-grey ash plumes for more than 3,000 metres (about 9,800 feet) into the air. Relevance: GS I: Geography Dimensions of the Article: Mount Marapi: Pacific Ring of Fire: -Source: The Hindu
Ozone Hole Detected over Antarctica
Context: According to a recent study, published in Nature Communications, stated that the Antarctic Ozone Hole has been massive in the last four years. Relevance: GS I- Geography Dimensions of the Article: What is Ozone Layer and what are Ozone Holes? What are Ozone Holes? Ozone creation and destruction Ozone Holes Grow and Shrink Every Year: Causes […]
About The Southern Annular Mode
Context: Recently, the Indian National Centre for Ocean Information Services (INCOIS) discovered that the Southern Annular Mode (SAM), an important climate pattern, plays a pivotal role in shaping sea conditions across the Indian Ocean. Relevance: GS I: Geography Dimensions of the Article: Southern Annular Mode (SAM): Understanding Antarctic Oscillation Characteristics: SAM Modes: Positive SAM: Negative […]
Once-in-a-Century Floods in East Africa
Context: The U.N. Office for the Coordination of Humanitarian Affairs (OCHA) has characterized the recent floods in Somalia and neighboring East African countries as a once-in-a-century event. The floods, triggered by torrential rainfall and influenced by climatic factors like El Niño and the Indian Ocean Dipole, have displaced hundreds of thousands of people. The impact […]
About The Leonid Meteor Shower
Context: Many skywatchers in India and around the globe are poised for a cosmic treat—the Leonid Meteor Shower, which has already been underway since November 6, is set to reach its peak in the pre-dawn hours of November 17–18, 2023. Relevance: GS I: Geography Dimensions of the Article: Leonid Meteor Shower: Formation of Dust Cloud: […]