Page 490 - Green - Maritime Archaeology: A Technical Handbook. 2nd ed

Index
469
Trilateration
basic equations, 99
basic methods, 149–150
basics, 96
in practice, 96, 98
solution diagram, 98f
survey plotting, 98–99
Thailand wreck site, 97f
in three-dimensional survey, 108–109 two-tape system, 99–100
Trinidad Valencera wreck site, 278 recording during excavation, 278 wreck site, 278
Tripod, for artifact photography, 339 Triumph of Righteousness, 409 Troposphere delays, in GPS, 48
Truk Lagoon, Sapporo Maru wreck site, 79 T-shaped angle-measuring device, 94–95 Tungsten lights, in artifact photography,
331
Two-dimensional survey techniques
United States
basic situation, 8–9 and legislation, 403 legislation, 401–402
Universal Transverse Mercator, and GPS, 50 UTM, see Universal Transverse Mercator UW digital camera, for phototriangulation,
192f
Variance, definition, 148 Vector graphic packages
enlargements, 208f three-dimensional packages, 207–209 two-dimensional packages, 207
Verenigde Oostindische Compagnie
for archival research, 17
artifact context, 349
and Australian sites, 401
historical material classification, 356–357
Vergule Draeck wreck site, work platforms, 248f
VIC, see Virtual Image Corrector
Video cameras, for field photography, 233 Viking ships, historical material, 351 Virtual Image Corrector, for
stereophotogrammetry, 194 Virtual Mapper
and Rhinoceros, 201
for Tektash wreck site, 193
VirtuoZo, for stereophotogrammetry, 194–195 Visual search techniques
aerial photography, 61 circular search, 55 GPS search, 57 overview, 50–51
with remotely operative vehicles, 58–60 submersibles, 57–58
swim-line, 51–54
towed search, 55–57
VOC, see Verenigde Oostindische Compagnie
Völkerwanderung, 408 W
Wasa wreck site
camera bar on photo tower, 224f photo, 365f
preservation, 9
raising, 8
replica, 361
U
distance-angle survey, 91–94
radial survey, 91–94
rectangular measuring systems offset
survey, 95–96
right angle survey, 94–95 trilateration, 96–100
Ulubrunu, museum exhibition, 366f Underwater breathing equipment, 5 Underwater cultural heritage
and legislation, 369 management objectives, 369–370 management overview, 368–369 protection, 368
Underwater photography, see General underwater photography
UNESCO, see United Nations Educational, Scientific and Cultural Organization
United Kingdom legislation, 401–402 wreck registers, 15
United Nations Educational, Scientific and Cultural Organization
Convention on the Protection of the Underwater Cultural Heritage, 5
Draft Convention for the Protection of Underwater Cultural Heritage, 404–406
underwater heritage concerns, 7
V