Authors- Deepak Putrevu, Tathagata Chakraborty and DFSAR team, Space Application Center, ISRO Ahmedabad. Radar studies of the lunar surface have so far been restricted to Earth-based radio telescopes and Moon-orbiting sensors operating with limited polarimetry configuration. The Dual-frequency Synthetic Aperture Radar (DFSAR) onboard Chandrayaan-2 (Ch-2) orbiter is the first ever state-of-the-art high-resolution radar system in the lunar orbit. To this Continue Reading »

On 28th March 2025, a major earthquake of magnitude 7.7 Mw hit Central Myanmar near Mandalay city at 12:50 Hrs local time (GMT + 6:30 hrs). The epicentre of the earthquake (21°59'46.68"N/95°55'32.88"◦E) is located 14.2 km NNW of Sagaing town in the Sagaing region and approximately 16 km west of Mandalay city, the second-largest city in Myanmar. The earthquake occurred Continue Reading »

Kartikeya Gaur, Pankaj R. Dhote and Praveen K. Thakur Inland water bodies play a crucial role in sustaining ecosystems, supporting agriculture, and regulating hydrological processes. Continuous monitoring of water levels is essential for effective water resource management and risk assessment, particularly in regions where ground-based observations are sparse. Traditional satellite altimeter missions have provided valuable insights into water storage and Continue Reading »

Tirha Pratim Das and Megala S India's Chandrayaan-3 mission achieved a historic milestone by executing a successful soft landing on the Moon's southern polar region, specifically at 69.3° South latitude, a feat never before accomplished by any nation. This precise landing, at the designated 'Shiv Shakti Point,' enabled in-situ scientific investigations of a previously unexplored lunar terrain. The mission lasted Continue Reading »

Monitoring snow cover variability is crucial for understanding water resources and climate impacts, as excessive snowfall, increases risks, while early melting disrupts river flows, necessitating continuous satellite observations for effective water management. Praveen Thakur and Sakshi Tripathi Snow cover in the Northwest Himalaya undergoes significant seasonal changes, impacting water availability, climate, and ecological balance. IIRS has generated a daily SCA Continue Reading »