Introduction to Remote Sensing Fif th Edition

 Introduction to Remote Sensing Fif th Edition


Readers of earlier editions will notice immediately that among the changes for this new, mfifth edition, the most significant is the addition of a coauthor—a change that will benefit readers by the contribution of additional expertise and of another perspective on the subject matter. During the interval that has elapsed since the release of the fourth edition, the pace of changes within the field of remote sensing and within the geospatial realm in general has continued to escalate at a pace that in earlier decades would have seemed unimaginable, even for committed visionaries. Likewise, few could have anticipated the development of the analytical tools and techniques available for examination of remotely sensed data, the widespread availability of remotely sensed imagery, or the multiplicity of remote sensing’s uses throughout society. These developments alone present a challenge for any

text on this subject.

Further, the tremendous volume of relevant material and the thorough access provided by the World Wide Web can cause anyone to ponder the role of a university text— isn’t its content already available to any reader? The reality is that, despite the value of the World Wide Web as a resource for any student of remote sensing, its complexity and dynamic character can increase, rather than diminish, the value of an introductory text. Because of the overwhelming volume of unstructured information encountered on the Web, students require a guide to provide structure and context that enable them to select and assess the many sources at hand. This text forms a guide for the use of the many other sources available—sources that may be more comprehensive and up to date than the content of any text. Thus, we encourage students to use this volume in partnership with online materials; the text can serve as a guide that provides context, and online materials as a reference that provides additional detail where needed.

Instructors should supplement the content of this volume with material of significance in their own programs. Supplementary materials will, of course, vary greatly from one institution to the next, depending on access to facilities and equipment, as well as the varying expectations and interests of instructors, students, and curricula. It is assumed that the text will be used as the basis for readings and lectures and that most courses will

include at least brief laboratory exercises that permit students to examine more images than can be presented here. Because access to specific equipment and software varies so greatly, and because of the great variation in emphasis noted earlier, this book does not include laboratory exercises. Each chapter concludes with a set of Review Questions and problems that can assist in review and assessment of concepts and material.

For students who intend to specialize in remote sensing, this text forms not only an introduction but also a framework for subjects to be studied in greater detail. Students who do plan specialization in remote sensing should consult their instructors to plan a comprehensive course of study based on work in several disciplines, as discussed in

Chapter 1. This approach is reflected in the text itself: It introduces the student to principal topics of significance for remote sensing but recognizes that students will require additional depth in their chosen fields of specialization.

For those students who do not intend to pursue remote sensing beyond the introductory level, this book serves as an overview and introduction, so that they can understand remote sensing, its applications in varied disciplines, and its significance in today’s world. For many, the primary emphasis may focus on study of those chapters and methods of greatest significance in the student’s major field of study.

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