Authors: Ashish Joshi, Shefali Agrawal, R. P. Singh Glaciers are massive bodies of ice formed over many years from compacted snow that slowly flows downhill under the force of gravity. Glacial lakes are formed from melting glacier ice. They can be found on top of glaciers, inside or beneath them, or in front of and beside glaciers. These lakes are Continue Reading »

Authors- Suresh Kumar and Justin George K In recent times machine learning (ML) models have emerged as potential tool in Digital Soil Mapping (DSM). It is an innovative method that generates precise soil information employing geospatial technology, including remote sensing, geographic information systems (GIS), geographic position system (GPS) and statistical modelling. Environmental covariates derived using RS and GIS are integrated Continue Reading »

Authors: Sachiko Mohanty, D. Mitra, and R. P. Singh Satellite altimetry sea surface height (SSH) data has been used to study the ocean circulation, mesoscale eddies, and internal tidal waves with a scale more than 100 km. However, sub-mesoscale ocean dynamics (~spatial scale less than 100 km) was unable to resolve using the conventional satellite data.  Surface Water and Ocean Continue Reading »

With the successful launch of the NASA-ISRO Synthetic Aperture Radar (NISAR) mission on 30th July 2025 from ISRO Satish Dhawan Space Centre (SDSC) SHAR, Sriharikota, a new era of SAR dual/multi-frequency SAR missions has begun. NISAR is a jointly developed SAR mission with L-Band (24 cm wavelength) developed by NASA and S-band (9.4 cm wavelength) developed by ISRO. The most Continue Reading »

 Authors- Ashish Joshi, Shefali Agrawal, R P Singh Satellite remote sensing is well known to provide magnificent visual perception of different earth features, at the same time, it also provides a quantitative understanding of various earth processes. Concepts of interferometry, when used in space-based imaging of the Earth's surface using Synthetic Aperture Radar (SAR), help in a detailed and accurate Continue Reading »