Alphabetical listing of categories: V

vadose zone -> unsaturated zone (3) hanging valleys -> valleys (2) median valleys -> valleys (2) valleys (2) shelf valleys (seafloor) -> seafloor features (10) climate variability -> climate change (16) vascular plants (8) disease vectors (1) aquatic vegetation (1) vegetation (29) vegetation -> biogeographic regions (53) vertebrate paleontology (5) vertebrates (156) vertebrate zoology (55) vertical datums -> map coordinate systems (3) Advanced Very High Resolution Radiometer (AVHRR) -> AVHRR (9) viaducts -> bridges (2) videography (7) remote video monitoring -> video monitoring (6) video monitoring (6) villages -> populated places (8) village squares -> parks (7) vineyards -> agricultural sites (3) virology (6) viruses (6) airborne visible infrared imaging spectrometer -> AVIRIS (1) visible light imaging (1) visitor centers -> buildings (4) visualization -> visualization methods (6) visualization methods (6) vocalization methods (1) volcanic activity (48) volcanic ash -> volcanic rocks (4) volcanic eruption prediction (4) volcanic features (37) volcanic rocks (4) volcanic tremors -> volcanic activity (48) volcanism -> volcanic activity (48) volcanoes (35) volcanology (48) volcano monitoring (10) -> volcanic activity WITH field inventory and monitoring volcanos -> volcanoes (35) vulcanology -> volcanology (48)