Universal Transverse Mercator (UTM), 367, 379
University Corporation for Atmospheric
Research (UCAR), 51
Unmanned aerial vehicle (UAV), 3, 8, 42, 146
Unsupervised classification, 180, 332
US agricultural data categories, 388
US Department of Agriculture (USDA), 97,
176, 387, 390, 394, 396
US Drought Monitor (USDM), 223
US Geological Survey (USGS), 361, 387
US National Institute of Food and Agriculture
(NIFA), 26
User accuracy (UA), 363
User interface, 91
USGS Digital Spectral Library, 365
V
Vapor pressure deficit (VPD), 107, 114
VCI-based drought maps, 313
Vegetation condition, 300, 301, 312
Vegetation condition index (VCI), 192, 194,
225, 313, 314, 334, 335, 389, 390,
397, 399
Vegetation condition monitoring system
(VegScape), 154, 226
Vegetation health index (VHI), 194, 225
Vegetation index (VI), 17, 18, 333–336,
389, 390
Very-high-resolution (VHR), 105
Virginia traditional area frame stratification, 281
Visible Infrared Imaging Radiometer Suite
(VIIRS), 8
W
Walk-in tunnels, 351
Warning system, 330, 331
Wavelet transformation, 128–132
Web Computer Graphics Metafile
(WebCGM), 77
Web Coverage Service (WCS), 77, 225,
393–397
Web Feature Service (WFS), 77, 225, 393–397
Web Map Service (WMS), 69, 77, 225,
393–397
Web Processing Service (WPS), 171, 225,
393–397, 399
Web services, 171, 393
Web Services Business Process Execution
Language (WS-BPEL), 393
Web Services Description Language (WSDL),
393, 399
Web-based flood monitoring systems, 325
Web-based geoinformation system, 325
Winter wheat, 368
WMS GetMap, 395
World Meteorological Organization
(WMO), 228
World Wide Web Consortium (W3C), 393, 394
Worldwide Reference System (WRS)-2, 12
Y
Yield estimation, 8, 13, 16, 18–20
Yield forecast, 136
418
Index