I-20
Index
VGI. See Volunteered Geographic Information
viewshed, 385
Virtual Earth, 64
matching source map to, 69–71
selecting correspondences in, 66–69
virtual globe, 11, 450
Visible Earth
Aqua and, 361
Aura and, 363
for EOS data, 364
visible light
as atmospheric windows, 300, 300f
defined, 298–299, 298f
visual image interpretation
applying elements of, 290–292, 290f
defined, 281
elements of, 281–282
of Great Pyramid of Giza, 283–284, 283f
of Stratosphere Hotel and Casino,
280–281, 281f
visualization. See also 3D visualization
new frontiers in, 453–457, 454f, 455f, 456f
Volunteered Geographic Information (VGI), 440
WAAS. See Wide Area Augmentation System
water pixel, spectral profile of, 319–321
wavelength
defined, 297
of EM energy, 297–298, 297f
Waymarking.com, 89
WGS84. See World Geodetic System of 1984
Whereigo.com, 89
“whiskbroom” sensor. See across-track scanning
Wide Area Augmentation System (WAAS), 85–86, 85f
examining with Trimble Planning Program, 96
orbit of, 325
wiki, 440
Wikimapia, 440
wildlife management, GPS use in, 88
Wilsons Promontory National Park, fire at,
355, 356f
WisconsinView, 442
workspace, in Arc/Info, 116
World Geodetic System of 1984 (WGS84), 31
World War I, aerial photography for, 271–272, 272f
World War II, aerial photography for, 272–273
WorldView-1, 339–340
WorldView-2, 340
Worldwide Reference System, for Landsat satellites,
332, 334, 334f
XOR operator, 150–151
Y code, 77
Yahoo! Maps, 236–238
Zenet, 324
Zillow, 10
zones
SPCS, 42–43, 43f
UTM, 39–41, 40f, 41f
z-value
in terrain representation, 377
in 3D modeling, 406–407