Chapter 11. Position-Fixing

  1. Amanda Bowens BA, MA

Published Online: 7 APR 2009

DOI: 10.1002/9781444302875.ch11

Underwater Archaeology: The NAS Guide to Principles and Practice, Second Edition

Underwater Archaeology: The NAS Guide to Principles and Practice, Second Edition

How to Cite

Bowens, A. (ed) (2008) Position-Fixing, in Underwater Archaeology: The NAS Guide to Principles and Practice, Second Edition, Blackwell Publishing Ltd., Oxford, UK. doi: 10.1002/9781444302875.ch11

Editor Information

  1. The Nautical Archaeology Society, Fort Cumberland, Fort Cumberland Road, Portsmouth, PO4 9LD, UK

Publication History

  1. Published Online: 7 APR 2009
  2. Published Print: 18 JUL 2008

ISBN Information

Print ISBN: 9781405175920

Online ISBN: 9781444302875

SEARCH

Keywords:

  • position-fixing - at sea relying on same basic principles as on land;
  • geographical coordinates - conventional marine chart coordinates in terms of latitude and longitude;
  • basis of Universal Transverse Mercator (UTM) projection;
  • how grid relates to projection?;
  • measurement accuracy - related to size of error in measurement;
  • methods of position-fixing and horizontal sextant angles;
  • compass bearings - as position-fixing device in context of archaeological survey;
  • theodolite, electronic distance measurement, total stations;
  • electronic position-fixing and GPS - with development of offshore oil industry and electronic position-fixing (EPF) systems;
  • differential range-corrections/differential GPS – differential GPS (DGPS) and profound effect on GPS as surveying resource

Summary

This chapter contains sections titled:

  • Geographical Coordinates

  • Accuracy

  • Methods of Position-Fixing

  • Equipment

  • Further Information