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2. Weather map - Wikipedia

   en.wikipedia.org/wiki/Weather_map

   Weather map. A surface weather analysis for the United States on October 21, 2006. A weather map, also known as synoptic weather chart, displays various meteorological features across a particular area at a particular point in time and has various symbols which all have specific meanings. [1] Such maps have been in use since the mid-19th ...

3. Pressure system - Wikipedia

   en.wikipedia.org/wiki/Pressure_system

   Pressure system. A pressure system is a peak or lull in the sea level pressure distribution. The surface pressure at sea level varies minimally, with the lowest value measured 87 kilopascals (26 inHg) and the highest recorded 108.57 kilopascals (32.06 inHg). High- and low-pressure systems evolve due to interactions of temperature differentials ...

4. History of surface weather analysis - Wikipedia

   en.wikipedia.org/wiki/History_of_surface_weather...

   By the end of 1872, the maps had established the format it would use until the introduction of frontal analysis. [8] By the 20th century, most of the weather-related functions under the U. S. Signal Corps branched off into a new civilian agency known as the U. S. Weather Bureau, the forerunner of today's National Weather Service.

5. Synoptic scale meteorology - Wikipedia

   en.wikipedia.org/wiki/Synoptic_scale_meteorology

   v. t. e. In meteorology, the synoptic scale (also called the large scale or cyclonic scale) is a horizontal length scale of the order of 1,000 km (620 mi) or more. [1] This corresponds to a horizontal scale typical of mid-latitude depressions (e.g. extratropical cyclones). Most high- and low-pressure areas seen on weather maps (such as surface ...

6. Station model - Wikipedia

   en.wikipedia.org/wiki/Station_model

   Meteorologists created the station model to fit a number of weather elements into a small space on weather maps. This allows map users to analyze patterns in atmospheric pressure, temperature, wind speed and direction, cloud cover, precipitation, and other parameters. [1] The most common station plots depict surface weather observations ...

7. Ridge (meteorology) - Wikipedia

   en.wikipedia.org/wiki/Ridge_(meteorology)

   Ridge (meteorology) Ridge line extending to the left of the high pressure center (H). In meteorology a ridge or barometric ridge is an elongated area of relatively high atmospheric pressure compared to the surrounding environment, without being a closed circulation. [1] It is associated with an area of maximum anticyclonic curvature of wind flow.

8. Trough (meteorology) - Wikipedia

   en.wikipedia.org/wiki/Trough_(meteorology)

   A trough is an elongated region of relatively low atmospheric pressure without a closed isobaric contour that would define it as a low pressure area. Since low pressure implies a low height on a pressure surface, troughs and ridges refer to features in an identical sense as those on a topographic map. Troughs may be at the surface, or aloft, at ...

9. Climate of New Zealand - Wikipedia

   en.wikipedia.org/wiki/Climate_of_New_Zealand

   The climate of New Zealand is varied due to the country's diverse landscape. Most regions of New Zealand belong to the temperate zone with a maritime climate (Köppen climate classification: Cfb) characterised by four distinct seasons. Winters are relatively mild and summers comparatively cool.