Oceanography Articles

• Near-Earth Object Impacts
  Asteroids, Comets and Meteors
  Geology
  Saturn
  Earth Science
  Moon
   
  

  Impact crater

  An impact crater is a circular depression on a surface, usually referring to a planet, moon, asteroid, or other celestial body, caused by a collision of a smaller body (meteor) with the ... > more
• Biodiversity
  Rainforests
  Ecology
  Ecology Research
  Geography
  Nature
   

  Biodiversity hotspot

  A biodiversity hotspot is a biogeographic region that is both a significant reservoir of biodiversity and is threatened with destruction. The term biodiversity hotspot specifically refers to 25 ... > more
• Climate
  Weather
  Atmosphere
  Geography
  Severe Weather
  Global Warming
   
  

  Atmospheric circulation

  Atmospheric circulation is the large-scale movement of air by which heat is distributed on the surface of the Earth. The wind belts and the jet streams girdling the planet are steered by three ... > more
• Environmental Policy
  Geography
  Environmental Issues
  Ecology
  Earth Science
  Global Warming
   

  Timeline of environmental events

  The timeline of environmental events is a historical account of events that have shaped humanity's perspective on the environment. This timeline includes some major natural events, man-made ... > more
• Geography
  Geology
  Earthquakes
  Natural Disasters
  Earth Science
  Hurricanes and Cyclones
   
  

  Orogeny

  Orogeny is the process of mountain building, and may be studied as a tectonic structural event, as a geographical event and a chronological event, in that orogenic events cause distinctive structural ... > more
• Geology
  Sports Science
  Climate
  Chemistry
  Inorganic Chemistry
  Nature of Water
   
  

  Metamorphic rock

  Metamorphic rock is the result of the transformation of a pre-existing rock type, the protolith, in a process called metamorphism, which means "change in form". The protolith is subjected to heat and ... > more
• Pollution
  Water
  Ecology
  Acid Rain
  Air Pollution
  Sustainability
   
  

  Eutrophication

  Eutrophication is the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus, or both. Eutrophication can be a natural process in lakes, occurring as ... > more
• Earthquakes
  Natural Disasters
  Geology
  Tsunamis
  Wildfires
  Geography
   
  

  San Andreas Fault

  San Andreas Fault is a geological fault that spans a length of roughly 800 miles (1287 kilometres) through California, United States. The fault, a right-lateral strike-slip fault, marks a transform ... > more
• Aviation
  Vehicles
  Sports Science
  Weather
  Geography
  Air Quality
   
  

  Altimeter

  An altimeter is an active instrument used to measure the altitude of an object above a fixed level. The measurement of altitude is called altimetry, which is related to the term bathymetry, the ... > more
• Earthquakes
  Natural Disasters
  Tsunamis
  Oil Spills
  Geology
  Pollution
   
  

  1999 Izmit, Turkey Earthquake

  The Izmit earthquake with a magnitude of 7.4 which lasted for 45 seconds killed over 17,000 in northwestern Turkey on 17 August ... > more

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