Taiga 2,949 Taiga environment 235 Tailings 227 Taliks 548 Talus 450 Tanker ships 247 Taxonomy 751 Techniques 423 Technology 468 Tectonics 4,394 Temperature 12,850 Temperature distribution 406 Temperature effects 4,134 TEMPERATURE EFFECTS 329 Temperature gradients 521 Temperature measurement 958 Temperature variations 1,165 Temporal distribution 454 Tensile properties 616 Terminology 377 Terraces 484 Terrain 883 Terrain identification 465 Terrains 442 Terrestrial biology 566 Terrestrial comparison 277 Terrestrial environment 4,372 Terrestrial planets 1,080 Territorial claims and boundaries 490 Tertiary 2,397 Test equipment 548 Testing 407 Tests 2,587 Tetrapoda 3,090 Textures 456 Thallophyta--Algae 403 Thallophyta--Algae--Ecology 288 Thallophyta--Algae--Physiology 436 Thallophyta--Algae--Population 273 Thaw depth 682 Thawing 2,900 Theoretical models 418 Theoretical studies 341 Theories 837 Theria 1,218 Thermal analysis 298 Thermal conductivity 1,335 Thermal diffusion 247 Thermal drills 286 Thermal insulation 1,504 Thermal properties 1,211 Thermal regime 2,139 Thermal stresses 410 Thermodynamic properties 837 Thermodynamics 771 Thermohaline circulation 977 Thermokarst 1,185 Thickness 2,297 Three-dimensional models 1,012 Tidal currents 262 Tides 969 Till 1,892 Time factor 585 Time series analysis 986 Tires 426 Tomography 236 Topographic effects 1,106 Topographic features 884 Topographic maps 223 Topographic survey 341 Topographic surveys 500 Topography 2,015 Total organic carbon 253 Tourism 553 Trace elements 502 Tracers 518 Tracked vehicles 313 Traction 250 Trafficability 493 Transgression 307 Transport 1,729 Transportation 1,679 Tree rings 505 Trees 292 Trees (plants) 1,212 Trenching 285 Tropical environment 375 Troposphere 1,055 Tundra 2,946 Tundra soils 830 TUNDRA SOILS 267 Tundra terrain 271 Tundra vegetation 1,146 Tunnels 406 Turbulence 554 Turbulent boundary layer 342 Turbulent diffusion 399 Turbulent exchange 248 Turbulent flow 323 Two-dimensional models 455