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Oceanography Ch 01
The Water Planet
| Term | Definition |
|---|---|
| Cosmology | "The science of the origin and development of the universe. Modern astronomy is dominated by the Big Bang theory, which brings together observational astronomy and particle physics." |
| degassing | "the removal of dissolved gases from liquids, especially water or aqueous solutions." |
| Big Bang Theory | theory is the prevailing cosmological model for the early development of the universe.[1] The key idea is that the universe is expanding |
| Element | a substance that cannot be broken down into other substances by chemical means |
| Atom | AN ATOM IS THE SMALLEST PARTICLE IN THE UNIVERSE WITH A DISTINCT SET OF CHEMICAL CHARACTERISTICS….. |
| Protons | positively charged particles of an atom |
| neutrons | neutral particles of an atom |
| electrons | negatively charged particles of an atom |
| Supernova | "is a stellar explosion that briefly outshines an entire galaxy, radiating as much energy as the Sun is expected to emit over its entire life span, before fading from view over several weeks or months." |
| Age of the earth | 4.5 billion years old |
| Radiometric dating | determining ages of geologic samples by measuring the relative abundance of radioactive isotopes and comparing isotopic systems. |
| Radioactivity | the disintegration of elements |
| Parent material | Beginning material before radioactivity occurs |
| Daughter material | End material as a result of radioactivity |
| Half life | is the amount of time required for a quantity to fall to half its value as measured at the beginning of the time period |
| Geologic time scale | "is a system of chronological measurement that relates stratigraphy to time, and is used by geologists, paleontologists, and other earth scientists to describe the timing and relationships between events that have occurred throughout Earth's history." |
| Latitude | "distance north or south of the equator. Latitude is the angle between the equatorial plane and a line drawn outward from the center of Earth to a point on the surface of Earth. Latitude varies from 00 to +90° north of the equator and 0° to —90° south of |
| Longitude | "distance east or west of the prime meridian. Longitude is the angle in the equatorial plane between the prime meridian and a second meridian that passes through a point on the surface of Earth whose location is being specified. Longitude may be specified |
| Prime meridian | " meridian of longitude, used as the origin for measurements of longitude; internationally accepted as the meridian of the Royal Naval Observatory, Greenwich. England." |
| Equator | "0° latitude, determined by a plane that is perpendicular to Earth’s axis and is everywhere equidistant from the North and South Poles. " |
| Degrees | "A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of plane angle, representing 1⁄360 of a full rotation." |
| Minutes | 1/60 th of a degree |
| Seconds | 1/60th of a minute |
| La and Lo of LPC… | 37° 42’ 47” North Latitude 121° 48’ 08” West Longitude |
| GPS | a worldwide radio-navigation system consisting of twenty-four navigational satellites and five ground-based monitoring stations. GPS uses this system of satellites as reference points for calculating accurate positions on the surface of Earth with readily |
| Hydrologic cycle | "movement of water among the land, oceans, and atmosphere due to vertical and hor zontal transport, evaporation, and precipitation. " |
Created by:
Permian
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