Cannabaceae

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The NPO pattern.

The North Pacific Oscillation (NPO) is a teleconnection pattern first described by Walker and Bliss[1] and characterized by a north–south seesaw in sea-level pressure over the North Pacific Ocean.
Rogers, using surface atmospheric temperature from St. Paul, Alaska, and Edmonton, identified two phases of the NPO, an Aleutian below (AB) phase that correspond to a deepened and eastward shifted Aleutian Low and an Aleutian above (AA) phase that is the opposite.[2]

During the positive (AB) phase, sea-level pressure is enhanced over a large region in the subtropics that extend poleward to 40N° and reduced at higher latitudes, westerlies are enhanced over the central Pacific and winter temperature are mild along much of the North America west coast but cooler than usual over Eastern Siberia and the United States South-West, precipitations are higher than usual over Alaska and the Great Plains. The effects of the NPO propagate into the subtropics and tropics through another climate mode, the Pacific Meridional Mode.[3]
The North Pacific Gyre Oscillation (NPGO) is the oceanic expression of the NPO.[4]

See also

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References

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  1. ^ Walker, Gilbert T.; E.W. Bliss (1932). "World weather V" (PDF). Memoirs of the Royal Meteorological Society. 4: 53–84. Retrieved 2010-10-09.
  2. ^ Rogers, Jeffery C. (1981). "The North Pacific Oscillation". International Journal of Climatology. 1 (1): 39–57. Bibcode:1981IJCli...1...39R. doi:10.1002/joc.3370010106.
  3. ^ Linkin, Megan E.; Sumant Nigam (2008). "The North Pacific Oscillation–West Pacific Teleconnection Pattern: Mature-Phase Structure and Winter Impacts". Journal of Climate. 21 (9): 1979–1997. Bibcode:2008JCli...21.1979L. doi:10.1175/2007JCLI2048.1.
  4. ^ Ceballos, Lina; Emanuele Di Lorenzo; Carlos D. Hoyos; Niklas Schneider; Bunmei Taguchi (2009). "North Pacific Gyre Oscillation Synchronizes Climate Fluctuations in the Eastern and Western Boundary Systems". Journal of Climate. 22 (19): 5163–5174. Bibcode:2009JCli...22.5163C. doi:10.1175/2009JCLI2848.1. hdl:1853/26552. S2CID 53349832. Retrieved 2010-10-07.
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source: Https://en.wikipedia.org/wiki/North_Pacific_Oscillation

One thought on “Cannabaceae”

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
    View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction

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