This book entitled "Fundamentals of Geospatial Technology and Applications", is a comprehensive compilation aligned with the ICAR 6th Deans' Committee syllabus, addressing the academic needs of students across multiple disciplines, such as Soil and Water Conservation Engineering (SWCE), Soil Science, Agronomy, Forestry, Fishery and Animal Husbandry under State Agricultural Universities (SAUs). It encompasses thirteen well-structured chapters that cover core topics including the Principles and progress of remote sensing, Interaction of electromagnetic spectrum, Platforms and sensors, Basics of photogrammetry and aerial photography, Visual image interpretation, Digital image processing, Fundamentals of GIS and its components, Coordinate systems and map projections, GNSS, Remote sensing indices for agricultural application and Applications in remote sensing and GIS in agriculture and allied sectors. The content has been meticulously designed to ensure conceptual clarity and practical relevance for undergraduate, post-graduate and doctoral students. The inclusion of 250 multiple-choice questions (MCQs) with answers enhances its utility as a self-assessment and exam preparation resource for both semester evaluations and competitive exams like ICAR NET, GATE, ARS and State Public Service Commission (PSCs). This book not only bridges theoretical understanding with practical applications but also serves as a valuable reference for students’ research in the field of geospatial technology applications across agriculture and allied disciplines.
Dr. Dwarika Mohan Das Scientist (Agricultural Engineering) KVK Jagatsinghpur, OUAT.
Dr. Sanjay Kumar Raul Professor SWCE, CAET, OUAT, Bhubaneswar.
Dr. Bharat Chandra Sahoo Retired Professor SWCE, CAET, OUAT, Bhubaneswar.
Er. Soubhagya Laxmi Ray Ph.D., Research Scholar CAET, OUAT, Bhubaneswar.
Dr. Jagadish Chandra Paul Professor and Head SWCE, CAET, OUAT, Bhubaneswar.
Dr. Ambika Prasad Sahu Professor SWCE, and Dean CAET, OUAT, Bhubaneswar.
1 Progress of Remote Sensing ....................................................................1
2 Electromagnetic Spectrum ...................................................................15
3 Platforms and Sensors ..........................................................................27
4 Photogrammetry and Aerial Photography .............................................55
5 Image Interpretation ..............................................................................73
6 Digital Image Processing ......................................................................91
7 Geographic Information System .........................................................109
8 Coordinate Systems and Map Projections ...........................................127
9 Global Navigation Satellite System ....................................................137
10 Remote Sensing Indices .....................................................................143
11 Applications of Geospatial Technology in Agriculture and Allied Sectors ....................................................................................151
12 Applications of Geospatial Technology in Watershed Management .......................................................................................171
13 Global Satellite Missions and Data Products ......................................185
References ...........................................................................................205
Multiple Choice Questions ..................................................................207
