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A fabric or edifice that is constructed, such as a house, church, etc.

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NERC - 	Global Change Master Directory Science Keywords V6

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A floating platform used in operations and research to collect meteorological and oceanographic data for forecasting, describing environmental conditions, and research, as well as for navigational purposes.

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An Ecotron is an experimental instrument in ecology consisting of a controlled environment which makes it possible to simultaneously condition the environment of natural, simplified, or completely artificial ecosystems and measure the processes generated by living beings present in these ecosystems, in particular the flow of matter and energy.

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A cabinet or box within which electrical or electronic equipment are mounted to protect them from the environment.

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A device used to couple multiple other devices.

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A type of evaporation gauge that consists of a tank or pan of soil placed in a field and manipulated so that the soil, water, thermal, and vegetative properties in the tank duplicate as closely as possible the properties of the surrounding area.

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A pole that supports sensors, instruments, or measurement peripherals.

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A free standing tower that supports measuring instruments or sensors.

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A scientific establishment devoted to making particularly precise and detailed meteorological, geophysical, and related astronomical phenomena.

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A device that selects one of several analog or digital input signals and forwards the selected input into a single line.

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Pontoons are airtight hollow structures, similar to pressure vessels, designed to provide buoyancy in water. Their principal applications are in watercraft hulls, aircraft floats, floating pier, pontoon rhinos, pontoon causeways, and marine engineering applications such as salvage..

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The collective ground and flight equipment, along with computer software, necessary to make a radiosonde flight, collect and process its data, and transmit the associated upper-air radiosonde message.

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An enclosure used to protect electronic equipment used for stormwater sampling.

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A tree is a perennial woody plant. It is most often defined as a woody plant that has many secondary branches supported clear of the ground on a single main stem or trunk with clear apical dominance. A minimum height specification at maturity is cited by some authors, varying from 3 m to 6 m; some authors set a minimum of 10 cm trunk diameter (30 cm girth). Woody plants that do not meet these definitions by having multiple stems and/or small size are called shrubs. Compared with most other plants, trees are long-lived, some reaching several thousand years old and growing to up to 115 m (379 ft) high. Trees are an important component of the natural landscape because of their prevention of erosion and the provision of a weather-sheltered ecosystem in and under their foliage. They also play an important role in producing oxygen and reducing carbon dioxide in the atmosphere, as well as moderating ground temperatures. They are also elements in landscaping and agriculture, both for their aesthetic appeal and their orchard crops. Wood from trees is a building material, as well as a primary energy source in many developing countries. Trees also play a role in many of the world's mythologies.

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A portable, three-legged frame used as a platform for supporting the weight and maintaining the stability of some other object. Typically used as a data collection platform to which sensors are attached.