When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Crest (hydrology) - Wikipedia

    en.wikipedia.org/wiki/Crest_(hydrology)

    In hydrology, crest is the highest level above a certain point (the datum point, or reference point) that a river will reach in a certain amount of time. This term is usually limited to a flooding event and from ground level.

  3. Ridge - Wikipedia

    en.wikipedia.org/wiki/Ridge

    The sides of a ridge slope away from a narrow top, the crest or ridgecrest, with the terrain dropping down on either side. The crest, if narrow, is also called a ridgeline. Limitations on the dimensions of a ridge are lacking. Its height above the surrounding terrain can vary from less than a meter to hundreds of meters.

  4. Crest and trough - Wikipedia

    en.wikipedia.org/wiki/Crest_and_trough

    A crest is a point on a surface wave where the displacement of the medium is at a maximum. A trough is the opposite of a crest, so the minimum or lowest point of the wave. When the crests and troughs of two sine waves of equal amplitude and frequency intersect or collide, while being in phase with each other, the result is called constructive ...

  5. Glossary of geography terms (A–M) - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_geography_terms...

    Also amphidrome and tidal node. A geographical location where there is little or no tide, i.e. where the tidal amplitude is zero or nearly zero because the height of sea level does not change appreciably over time (meaning there is no high tide or low tide), and around which a tidal crest circulates once per tidal period (approximately every 12 hours). Tidal amplitude increases, though not ...

  6. Fold (geology) - Wikipedia

    en.wikipedia.org/wiki/Fold_(geology)

    The crest of the fold represents the highest point of the fold surface whereas the trough is the lowest point. The inflection point of a fold is the point on a limb at which the concavity reverses; on regular folds, this is the midpoint of the limb.

  7. Glossary of geography terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_geography_terms

    Glossary of geography terms may refer to: Glossary of geography terms (A–M) Glossary of geography terms (N–Z) This page was last edited on 25 ...

  8. Ripple marks - Wikipedia

    en.wikipedia.org/wiki/Ripple_marks

    Crest and trough Crest The point on a wave with the maximum value or height. It is the location at the peak of the wave cycle as shown in picture to the right. Trough The opposite of a crest, so the minimum value or height in a wave. It is the location at the very lowest point of a wave cycle also shown in picture to right. Lee

  9. Spur (topography) - Wikipedia

    en.wikipedia.org/wiki/Spur_(topography)

    A spur is a lateral ridge or tongue of land descending from a hill, mountain or main crest of a ridge. [1] [2] It can also be defined as another hill or mountain range which projects in a lateral direction from a main hill or mountain range. [3] Examples of spurs include: