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8.6 NH Final Exam
| Term | Definition |
|---|---|
| Mitigate | To lessen in force or intensity, as wrath, grief, harshness, or pain; moderate. |
| Cone of Uncertainty | The projected path and intensity of a hurricane or tropical storm issued by the National Hurricane Center. |
| Precursor | A person or thing that precedes, as in a job, a method, etc.; predecessor. |
| Seismometer | A seismograph equipped for measuring the direction, intensity, and duration of earthquakes by measuring the actual movement of the ground. |
| Saffir-Simpson Scale | A rating system that classifies hurricanes based on their sustained wind speed from 1 to 5. |
| Convergent Boundary | A location in Earth’s crust and mantle where two tectonic plates crash into one another, either one going under the other, or colliding into one another. |
| Divergent Boundary | A location in Earth’s crust and mantle where two tectonic plates move apart from one another. |
| Transform Boundary | A location in Earth’s crust and mantle where two tectonic plates slide past one another. |
| Seismic Resistance Construction | The fabrication of a building or structure that is able to withstand the sudden ground shaking that is characteristic of earthquakes, thereby minimizing structural damage and human deaths and injuries. |
| Levee | Any low ridge or earthen embankment built along the edges of a stream or river channel to prevent flooding of the adjacent land. |
| Weather Balloons | A balloon equipped with meteorological apparatus which is sent into the atmosphere to provide information about the weather. |
| Radar/Doppler | A radar tracking system using the Doppler effect to determine the location and velocity of a storm, clouds, precipitation, etc. |
| Satellites | An artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication. |
| Mercalli Scale | A twelve-point scale for expressing the local intensity of an earthquake, ranging from I (virtually imperceptible) to XII (total destruction). |
| Enhanced Fujita Scale | Used to assign a tornado a 'rating' based on estimated wind speeds and related damage. |
| Volcano Explosive Index | It is used as a relative measure of the explosiveness of volcanic eruptions. |
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