- 行业: Earth science
- Number of terms: 10770
- Number of blossaries: 1
- Company Profile:
The UK charity dedicated to the protection of the marine environment and its wildlife.
The latest geological period, covering 2 Million years ago to the present, representing the last part of the Cenozoic era. The Quaternary can be subdivided into two epochs; the Pleistocene (two million years to ten thousand years ago) and the Holocene (ten thousand years ago to the present day).
Industry:Earth science
The limit of coastal waters over which a nation exercises sovereign jurisdiction, which extends 12 nautical miles (22km) from the mean low water mark adjacent to land, or from internal waters (as defined in the 1994 United Nations Convention on the Law of the Sea).
Industry:Earth science
A region in a salt pan where the liquid remaining after sea water has been concentrated by evaporation until salt has crystallized.
Industry:Earth science
The long-term statistical characterization of the behaviour of waves in the ocean.
Industry:Earth science
The meridian through Greenwich, England, that serves as the reference for Greenwich Time; in contrast with local meridians, it is accepted almost universally as the prime meridian, or the origin of measurement of longitude.
Industry:Earth science
The 'Middle Stone Age' period covering the years from about 10,000 to 5000BC, between the Palaeolithic and Neolithic Periods. This period is characterised by distinct environmental changes and climatic warming, afforestation, sea level rise and occupation by nomadic hunter-gatherer groups.
Industry:Earth science
The moment that the Sun reaches its greatest extent in declination, north or south.
Industry:Earth science
The most abundant greenhouse gas, it is the water present in the atmosphere in gaseous form. Water vapor is an important part of the natural greenhouse effect. While humans are not significantly increasing its concentration, ti contributes to the enhanced greenhouse effect because the warming influence of greenhouse gases leads to a positive water vapor feedback. In addition to its role as a natural greenhouse gas, water vapor plays an important role in regulating the temperature of the planet because clouds form when excess water vapor in the atmosphere condenses to form ice and water droplets and precipitation.
Industry:Earth science
The movement of a tidal current away from the coast or down an estuary or tidal waterway; the opposite of flood current. Nontechnically called ebb tide.
Industry:Earth science
