How Nisar will supercharge India's battle against climate change
By deploying dual-band radar, L-band from Nasa and S-band from Isro, with its innovative SweepSAR technology, Nisar will create high-resolution images that are both spatially and temporally consistent.This allows for the precise detection of even centimetre-scale changes on Earth's surface, a game-changer for climate science and disaster monitoring.BOOSTING INDIA'S CLIMATE CHANGE FIGHTMonitoring Ecosystems and BiomassNisar will provide detailed measurements of forests, wetlands, and cropland. The L-band radar penetrates dense vegetation, helping scientists estimate biomass and track deforestation, forest health, and carbon stocks, key factors in managing climate change and conservation.Tracking Glaciers, Ice, Coastal ChangeIndia is highly vulnerable to melting Himalayan glaciers and shifting coastlines. Nisar's frequent passes will help scientists monitor glacier retreat, sea ice characteristics near Indian polar stations, and shoreline dynamics such as erosion and accretion, crucial for predicting sea level rise and managing deltaic regions like the Sundarbans.Disaster Preparedness and Risk ReductionFrom earthquakes and landslides in the Himalayas to cyclones, floods, and tsunamis along India's coasts, Nisar's rapid, high-resolution observations will enable authorities to detect hazards early, assess damage quickly, and target disaster relief more efficiently.Repeat-pass InSAR (Interferometric Synthetic Aperture Radar) techniques will allow surface deformation to be mapped with high precision, vital for earthquake and volcano monitoring.Water, Agriculture, and Food SecurityNisar's sensitive radars will track soil moisture, groundwater changes, and crop growth, providing the agricultural sector with real-time insights for better planning and irrigation. This is a boon for food security, especially under increasingly erratic monsoon conditions.Global Scientific AssetAll Nisar data will be openly available, supporting global research and strengthening India's leadership in climate science. It is poised to support climate policy, enable early warning systems, and foster international collaborations to tackle environmental threats.In a time of climate crisis, Nisar represents hope, offering India and the world an unprecedented, data-driven advantage in safeguarding the planet for generations to come.- Ends
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