Remote sensing of soils

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This book explores the applications of remote sensing techniques in soil studies. It begins with an introduction to remote sensing concepts and technologies, including Geographic Information System (GIS) and Global Positioning System (GPS). The second chapter offers an overview of the sensors used for collecting remote sensing data and highlights key Earth observation missions. Chapter three addresses the processing of satellite digital data, covering geometric and radiometric corrections, feature reduction, digital data fusion, and image enhancements. The subsequent chapter focuses on the interpretation of remote sensing data, a crucial step for deriving information on natural resources, particularly soils. Chapter five introduces soils as natural bodies, discussing their formation, physical and chemical properties, and classification. The spectral response patterns of soils, including hyperspectral characteristics essential for extracting soil information from spectral measurements, are examined in chapters six and seven, which also cover soil resource mapping techniques. Chapter eight discusses the creation of digital soil resource databases and the development of soil information systems for effective storage and dissemination of digital soil data. Finally, chapters nine and ten cover the applications of remote sensing techniques in estimating soil moisture and evaluating soil fertility.