The NISAR (NASA-ISRO Synthetic Aperture Radar) mission is a pioneering path breaking satellite mission developed as a collaboration between ISRO and NASA for developing crucial understanding of the earth and its dynamism. A collaborative scientific mission of ISRO and NASA, NISAR has two active microwave sensors in two bands viz. L-band and S-band, also known as Synthetic Aperture Radar (SAR). Continue Reading »

The North Indian Ocean (NIO) is one of the most significant cyclone-producing basins in the world, playing a crucial role in regional climate and weather extremes. It consists of two major cyclone basins: the Bay of Bengal (BoB) located on the eastern side of India and the Arabian Sea located on the western side. Although it contributes only about 6% Continue Reading »

Shifting cultivation, a traditional agricultural practice, has long influenced forest cover dynamics across Southeast Asia. This cyclical process of vegetation clearance, burning, and regrowth carries substantial environmental and socio-economic consequences. In India, shifting cultivation—locally known as jhum—is prevalent in the northeastern states, including Tripura. Over time, socio-economic changes and policy interventions have altered traditional jhum cycles, influencing land use patterns. Continue Reading »

Authors- Shuchita Srivastava, Yogesh Kant and D. Mitra The Hayli Gubbi volcano in Ethiopia experienced its first confirmed eruption in approximately 12,000 years on 23 November 2025 at 14:00 IST, producing an ash column that reached an estimated altitude of 10–15 kilometers. The resulting plume was transported by upper-tropospheric winds toward India and China. Traveling at speeds of 100–120 km/h Continue Reading »

Rock glaciers in cold-arid part of northwestern Himalaya appear to be more directly and extensively a part of human settlement and land use than glaciers and have a greater and more immediate impact on livelihood. In the cold semi-arid part of Himalaya, most of the civilization has developed in the peri and paraglacial environment and thus permafrost and rock glaciers Continue Reading »