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  2. Glossary of landforms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_landforms

    Shoal – Natural submerged sandbank that rises from a body of water to near the surface; Spring – A point at which water emenges from an aquifer to the surface; Strath – Large valley; Stream – Body of surface water flowing down a channel; Stream pool – Deep and slow-moving stretch of a watercourse; Swamp – A forested wetland

  3. Glossary of nautical terms (A–L) - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_nautical_terms...

    Resting on or touching the ground or land, or the bottom of a body of water (either unintentionally or deliberately, such as in a drying harbour), as opposed to afloat. [3] ahead Forward of the bow. ahoo An adjective indicating an un-seamanlike state of disarray. Used to describe something awry, askew, or even round but out of true. [11] E.g.

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

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

    A word identifying a person or a group of people in relation to a particular place, usually derived from the name of the place (which may be any kind of place, formal or informal, of any size or scale, from a town or city to a region, province, country, or continent) and used to describe all residents or natives of that place, regardless of any ...

  5. Fog - Wikipedia

    en.wikipedia.org/wiki/Fog

    Fog is a visible aerosol consisting of tiny water droplets or ice crystals suspended in the air at or near the Earth's surface. [1] [2] Fog can be considered a type of low-lying cloud usually resembling stratus and is heavily influenced by nearby bodies of water, topography, and wind conditions.

  6. Cartography - Wikipedia

    en.wikipedia.org/wiki/Cartography

    Mercator is also credited as the first to use the word "atlas" to describe a collection of maps. In the later years of his life, Mercator resolved to create his Atlas, a book filled with many maps of different regions of the world, as well as a chronological history of the world from the Earth's creation by God until 1568.

  7. Ephemera - Wikipedia

    en.wikipedia.org/wiki/Ephemera

    The mayfly Ephemera danica A piece of ephemera circa 1749–1751, around the time Samuel Johnson may have coined the term. The etymological origin of Ephemera (ἐφήμερα) is the Greek epi (ἐπί) – "on, for" and hemera (ἡμέρα) – "day".

  8. Snell's window - Wikipedia

    en.wikipedia.org/wiki/Snell's_window

    Under ideal conditions, an observer looking up at the water surface from underneath sees a perfectly circular image of the entire above-water hemisphere—from horizon to horizon. Due to refraction at the air/water boundary, Snell's window compresses a 180° angle of view above water to a 97° angle of view below water, similar to the effect of ...

  9. Mirage - Wikipedia

    en.wikipedia.org/wiki/Mirage

    The real object in an inferior mirage is the (blue) sky or any distant (therefore bluish) object in that same direction. The mirage causes the observer to see a bright and bluish patch on the ground. Light rays coming from a particular distant object all travel through nearly the same layers of air, and all are refracted at about the same angle ...