The navigation is usually referred to as a sort of maritime art used by the mariners to get their vessels from one point of the world to another in a safe and expeditious manner. The traditional ways that are available to the marine navigators to check the progress of their ship are all based on the fundamental principles of the astronomy. These methods of mathematical astronomy shall be used by the mariners if the conventional shore observations are not available or electronic aids are not functional.
And this is the nautical astronomy which is scientific in nature. The author's aim in preparing this volume was to provide navigators with the complete and up-to-date reference book on nautical astronomy and fill the gap in the literature currently available on the modern navigation needs. The author has introduced some historical background intended to broaden the knowledge of the readers in the field of navigation, and will also definitely enhance their interest in navigation.
The author hopes that the people who have read this book including both amateur and professional mariners will gain real profit from the information and instructions contained in its pages. Moreover, they will find it very enjoyable to get better understanding of the subject.
The present publication was released to supplement The Nautical Almanac 2018. The content of the document was developed by the TNA Office of the U.S. Naval Observatory working jointly with the UKHO specialists. It will provide navigators with additional information required for safe navigation. The material is arranged thirteen chapters.
The first chapter is covering such phenomena as eclipses, Moon phases and seasons, helio- and geocentric planetary phenomena, perigee and occultations, together with the apogee of the Moon etc. In this chapter the authors are also dealing with the visibility of the Planets, configuration diaries an other relevant matters.
The other chapters of the document address the international time zones and eclipses, moonset and moonrise tables, mean sidereal time and circumpolar stars. They also provide explanation of setting and rising tables, Gregorian calendar, perihelion passages of the comets, magnitudes and elongations of the Planets and other information. As it was a case with the Nautical Almanac, this publication will be useful to the people when it is used as a supplementary tool for their training or daily working activities.
This Nautical Almanac presents compilation of information generated by the software developed by the author, Enno Rodegerdts. A great number of tables produced by the program will serve as valuable instrument for the navigator. The accuracy of the data contained in these tables has been numerously checked and confirmed; however, it cannot be fully guaranteed so you would better use them as a supplementary tool.
The information contained in the Almanac includes yearly calendar and useful links to time signals, Bowditch - The American Practical Navigator, The Terrestrial Almanac, individual latitudes, and sight reduction forms and methods. Then we have couple of pages of useful formulas for determining Hc and Z using calculator, for calculating latitude using the Sun and others. After that and before proceeding to the main content of the Almanac, several pages of the book are devoted to the explanation of the information, Moon phases and conversion of Arc to Time.
We strongly recommend students of marine navigation to download this Almanac and use it as a training tool. The information carefully arranged by the author will definitely help them in their activities and also will be useful on board ships and boats when used as the additional navigational publication.
One of the oldest publications available today and covering the subject of the ocean meteorology. It is a truly classic volume. The main content of the textbook is based on the annual lectures read by the author of this publication at the world famous Royal Naval College. The author has omitted most of the theoretical part making the focuses on the practical issue of making passages from one port to another.
There are eight chapters in this book. The first chapter provides general introductory information about the meteorology, characteristics of the atmosphere, wind force, moisture, rain and clouds, low and high pressure areas etc. The second chapter addresses the ocean characteristics, currents, southern and northern ice etc, while the third chapter has been devoted to the North and South Atlantic Ocean together with the current systems and winds.
The fourth chapter is dealing with the Indian Ocean and passages across it. The last three chapters of the textbook cover the Indian Archipelago and China Sea North Pacific Ocean, again with the wind and current systems, hurricanes and cyclones, prognostics, law of storms, ocean depth and temperature, ocean density and saltiness, circulation of the ocean waters, isothermal charts and many other important aspects of the ocean meteorology.
The LMA has been published for nearly seventy years and is the oldest and the most respected atlas among those used in the maritime industry. This Atlas is released to provide users with a comprehensive reference source for locating the ports and shipping places of the world, the information contained in the Atlas includes the main connections together with the canal and river systems considered major.
All commercial ports included in the publication have been covered in a very clear and concise way; the authors of the title have mainly focused on the busiest world trade routes. In addition to that, the book features both regional and world marine distance tables together with the comprehensive user guide, and statistics on the movements of the commercial ships, causalities and characteristics.
The most important and advantageous features of the current release of the Atlas include the top twenty marine ports with the statistics and informative illustrations, completely updated world maps covering the no-go shipping areas due to the ebola, precise longitude/latitude coordinates of more than eight thousand ports/shipping places, newly established indexing systems that allows readers to perform both alphabetical and geographical search and view the main features of each of them covering the LNG imports and exports.
This classic publication belongs to the famous and historical The Rudder ON series. The nautical books and other instruments that are commonly used on board marine ships for navigation are usually quite large sized. This does not present any sort of problem on large conventional vessels since there is lot of space available to keep and use them.
However, on smaller ships the crew members usually prefer more compact volumes. That is the reason why the decision was made by the author of this publication to reduce its size to the maximum practical extent. In the meantime every effort was made to include all important information. The volume opens with a chapter devoted to the altitude diagrams also explaining dip of the horizon and parallax.
There are numerous tables included in this section addressing main refraction, difference of latitude and departure for degrees from 1 to 45, log. sines, tangents, and secants, dip of the sea horizon, the Sun's parallax in altitude, correction of the Moon's altitude, and comparison of Admiralty knots and statute miles. The remaining portion of the publication is dealing with using sextant, etc. In short, the book will be interesting for the people who like navigation and are interested with the traditional navigation techniques.
The present collection of selected meteorological tables is one of the rarest and oldest navigation publications available. The book was originally published more that hundred and fifty years ago, in 1852. Of course there have been so many technological developments in the field of maritime navigation since then; however, the book will still be good to the people with the interest in practical meteorology.
The main content of the publication has been arranged in four major section. The first section contains thermometrical tables and comparison of the thermometrical scales, in total there are fifteen tables with supplementary information. The second section contains five hygrometrical tables including elastic forces of aqueous vapors, psychometrical tables for deducing the force of vapor, relative humidity etc.
The third section provides barometrical tables including reduction of the barometrical observations. Finally, the last fourth section of the volume contains hypsometrical tables. Each of the series features distinct paging that runs throughout the set, it is there at the page bottom. Have a look in the book and you may like to have it in your collection. The appendix is dealing with the comparison of the English-French length measures.
One more world popular and classic nautical publication. The content of this Almanac is traditionally arranged in several parts numbered for easier reference. The first part of the Almanac addresses the astronomical information and data that are commonly used every day by the navigators, together with the clear explanations on their use. The second part of the title is dedicated to the nautical tables and methods used.
The third part contains all required tables of tides for both home and foreign waters; the associated predictions were compiled by the recognized and reliable authorities. Then the part comes dealing with the coastal courses and distances covering the areas around the navigating channels of the British Isles and also near Europe. The fifth part of the Almanac contains the distance tables providing mariners with a worldwide coverage of the total distances between the major ports of US, Canada and Great Britain, and to all principal ports of the world.
The next part is dedicated to the legal issues, while the closing part of the volume deals only with the lights, buoys and beacons of the British Isles. The content of the publication has been carefully proofread and edited, and arrange in a way providing maximum accuracy and ease of reference. Another must-have one for literally every navigator.