Remote sensing involves extracting information about a subject without making any physical contact. This book provides a broad overview of remote sensing theory and its applications by discussing the latest advancements in this field. It is compiled with contributions from renowned researchers and experts to provide significant information about the subject and its related aspects. The main highlight of this book is the combination of various techniques such as smart sensors, satellite remote sensing, field spectroscopy and ground techniques for formulating an integrated method to keep systematic track of the environment. It aims to provide valuable information in the field of remote sensing for assisting academic and research activities.