||Elsevier Oceanography Series
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It is the author's intention that this book serve various purposes, i.e. to give the reader an overall view of the many aspects of the art and science of hydrographic and other types of surveying and charting, while also going deeper into those subjects which seem to require additional attention, or are in need of a more modern approach. Also, where deemed desirable, new subjects have been introduced. At the same time it was considered a necessity not to overlook simpler methods and less complicated equipment, as not every survey vessel has the latest electronic data processing equipment on board with all instruments recording on line. Writing this book has also been done in the hope it will assist hydrographic and other marine surveyors who are faced with the difficult task of starting an efficient hydrographic office and an effective surveying service for their country and who in addition very often have to give guidance to young survey officers, while not having at their disposal the latest sophisticated data collection and processing devices. According to the author there is a need for a treatise which not only discusses the latest equipment and methodologies, but which covers also less complicated instruments and methods to be used in circumstances regularly occurring in daily life on board. As was already said, there are quite a number of handbooks and manuals in which advanced procedures are described related to the science of surveying and charting. What is also needed - and is not overlooked in this book - is advice to the surveyor or hydrographer who urgently needs reliable charts, but who is not (yet) in a position to purchase or to use advanced instruments or equipment. A similar predicament may present itself on board of a naval vessel not especially equiped to carry out hydrographic survey work but, nonetheless, finding itself in need of fast operational surveying in the area of its activities. Also merchant navy officers may, from time to time, be confronted with the need to know more about the water they intend to navigate.