Shuchita Srivastava , Abhinav Sharma and  Debashish Mitra Forest Fire is one of the major emission sources of gaseous air pollutants like carbon monoxide (CO), nitrogen oxides (NOx), volatile organic compounds (VOC) etc. Satellite remote sensing has been instrumental in providing observation of active fire counts and different atmospheric pollutants. Prevailing dry conditions and rainfall deficit during the spring season Continue Reading »

Ashish Joshi, Suresh Kannaujiya, Shefali Agarwal, R. S. Chatterjee and R. P. Singh Submarine groundwater discharge (SGD) is the flow of groundwater from land to sea that occurs in the sub-surface. Groundwater seeps from the surface through aquifers and when the water level in the aquifer is higher than sea level, the water flows into the ocean. SGD can occur Continue Reading »

Fog is a cloud of tiny water droplets that forms at ground level and is thick enough to limit horizontal visibility to less than 1 kilometre. The presence of heavy and extended periods of fog in the Indo-Gangetic Plains is one of the major weather hazards, impacting road transportation, aviation, the economy and public life in general. So, it is Continue Reading »

Sonakshi Mehrotra and Anil Kumar The Kumbh Mela 2025 in Prayagraj, a grand spiritual and cultural congregation, presents unique challenges and opportunities for effective monitoring and management. With millions of pilgrims expected, temporal remote sensing technology offers a dynamic approach to track spatial and temporal changes, including land-use transformations, crowd density patterns, and infrastructure development. High-resolution satellite imagery like DOVE Continue Reading »

Dr. Manu Mehta and Mr. Akhilesh Kumar This recent study at Indian Institute of Remote Sensing (IIRS), ISRO, presents the first known comprehensive global validation of Aerosol Optical Thickness (AOT) measurements derived from the Sentinel 2 Sen2Cor algorithm, covering a significant period of 5 years from 2018 to 2022 utilizing an extensive dataset from over 400 AERONET stations (each year) Continue Reading »