Walls 629 Warning systems 292 Waste disposal 1,636 Waste disposal sites 78 Waste management 248 Wastes 151 Waste treatment 518 Waste water 176 Water 2,199 Water balance 1,352 Water cement ratio 75 Water chemistry 1,307 Water content 1,486 WATER CONTENT 92 Water erosion 436 Water films 235 Water flow 658 Water intakes 202 Water level 542 Water management 465 Water masses 153 Water pipelines 226 Water pipes 144 Water pollution 1,688 Water pressure 324 Waterproofing 261 Water quality 698 Water regimes 358 Water reserves 505 Water resources 879 Water-rock interaction 101 Watersheds 1,538 Water storage 368 Water structure 338 Water supply 1,647 WATER SUPPLY 109 Water table 459 Water temperature 2,298 WATER TEMPERATURE 158 Water transport 559 Water treatment 743 Water vapor 921 Water waves 305 Waterways 228 Water wells 153 Wave dispersion 77 Wavelength 100 Wavelets 69 Wave propagation 1,091 Waves 266 Weather 99 Weather forecasting 1,595 Weathering 1,664 Weather modification 240 WEATHER MODIFICATION 74 Weather observations 3,211 Weatherproofing 94 Weather stations 618 Weichselian 1,761 Welding 270 Well casings 120 Well logging 493 Well-logging 484 Well logs 97 Wells 309 West 103 West-Central Alaska 146 Western Norway 66 West Pacific Ocean Islands--Macquarie Island 189 Wetlands 937 Wet snow 347 Wettability 101 Whaling 415 Whaling industry 256 White phosphorus 78 Whole rock 144 Wind 1,118 Wind direction 412 Wind energy 77 Wind erosion 305 Wind factors 1,870 WIND FACTORS 152 Wind--Katabatic 356 Wind (meteorology) 1,308 Windows 147 Wind power generation 78 Wind pressure 290 Winds 2,584 Wind transport 845 Wind tunnels 551 Wind velocity 1,303 Winter 1,089 Winter concreting 940 Winter maintenance 1,536 WINTER MAINTENANCE 66 Wisconsinan 847 Wood 275 Wooden structures 74 World ocean 597 Wurm 150