Introduction to Remote Sensing and Data Science

#Earth's #ecosystems #monitoring #environments #Geographic #Information #Systems #(GIS)

Dr. Shiv Mohan, a renowned expert in Microwave Remote Sensing and He played pivotal roles in India's Chandrayaan 1 and Chandrayaan 2 missions, served in numerous ISRO technical committees, and received the Indian National Remote Sensing Award in 1995. Dr. Shiv Mohan commenced his presentation by providing an insightful overview of IEEE GRSS, emphasizing its role in understanding Earth's ecosystems, monitoring environments, oceans, ice caps, and assessing potential risks. He highlighted the presence of nine chapters across India and the chapter's support for students participating in IGARSS. Dr. Mohan discussed remote sensing's essence, applications in inaccessible terrains, and the electromagnetic spectrum. He explained data acquisition techniques, categorized remote sensing into types (e.g., black and white, color, multispectral, hyperspectral), and highlighted its diverse benefits, including vegetation analysis, drought detection, disaster management, and microwave remote sensing's significance in cloudy or rainy weather, for detecting moisture zones and monitoring irrigation. Dr. Mohan explained how constructive and destructive interference aids in obtaining digital elevation models (DEMs) of the Earth's surface. Dr. Mohan categorized remote sensing into thermal, optical, and microwave types, then highlighted GIS's role in managing data with temporal, spatial, and geospatial dimensions. He also drew parallels between data science and remote sensing, stressing the importance of digital image processing in data analysis. He cited historical examples and stressed the critical necessity of Geographic Information Systems (GIS) in the modern world. A lively question and answer session allowed participants to engage with Dr. Shiv Mohan, seeking clarifications and further insights into the topics discussed.