Difference between revisions of "North equatorial countercurrent"

From Glossary of Meteorology
imported>Perlwikibot
(Created page with " {{TermHeader}} {{TermSearch}} <div class="termentry"> <div class="term"> == North Equatorial Countercurrent == </div> <div class="definition"><div class="short_definit...")
 
imported>Perlwikibot
 
Line 9: Line 9:
 
   </div>
 
   </div>
  
<div class="definition"><div class="short_definition">(Abbreviated NECC.) A band of eastward flow between the  westward flowing North and South Equatorial Currents.</div><br/> <div class="paragraph">The location and strength of the NECC is determined by the [[intertropical convergence zone]]  (ITCZ) of the [[atmosphere]]. In the Pacific Ocean it is strongest in May&ndash;January when it flows  between 5&deg; and 10&deg;N with 0.4&ndash;0.6 m s<sup>&minus;1</sup>; in February&ndash;April it is restricted to 4&deg;&ndash;6&deg;N with speeds  below 0.2 m s<sup>&minus;1</sup> and disappears east of 110&deg;W. In the Atlantic Ocean the NECC is observed between  5&deg; and 10&deg;N with speeds of 0.1&ndash;0.3 m s<sup>&minus;1</sup>; it is strongest during August when it flows from South  America into the Gulf of Guinea and weakest in February when it is restricted to the region east  of 20&deg;W. In the Indian Ocean the NECC exists during the northeast [[monsoon]] season only and  is then the only [[countercurrent]]; it is therefore mostly called the [[Equatorial Countercurrent]]. It  is centered on 5&deg;S, again the location of the ITCZ.</div><br/> </div>
+
<div class="definition"><div class="short_definition">(Abbreviated NECC.) A band of eastward flow between the  westward flowing North and South Equatorial Currents.</div><br/> <div class="paragraph">The location and strength of the NECC is determined by the [[intertropical convergence zone]]  (ITCZ) of the [[atmosphere]]. In the Pacific Ocean it is strongest in May&ndash;January when it flows  between 5&#x000b0; and 10&#x000b0;N with 0.4&ndash;0.6 m s<sup>-1</sup>; in February&ndash;April it is restricted to 4&#x000b0;&ndash;6&#x000b0;N with speeds  below 0.2 m s<sup>-1</sup> and disappears east of 110&#x000b0;W. In the Atlantic Ocean the NECC is observed between  5&#x000b0; and 10&#x000b0;N with speeds of 0.1&ndash;0.3 m s<sup>-1</sup>; it is strongest during August when it flows from South  America into the Gulf of Guinea and weakest in February when it is restricted to the region east  of 20&#x000b0;W. In the Indian Ocean the NECC exists during the northeast [[monsoon]] season only and  is then the only [[countercurrent]]; it is therefore mostly called the [[Equatorial Countercurrent]]. It  is centered on 5&#x000b0;S, again the location of the ITCZ.</div><br/> </div>
 
</div>
 
</div>
  

Latest revision as of 15:46, 20 February 2012



North Equatorial Countercurrent

(Abbreviated NECC.) A band of eastward flow between the westward flowing North and South Equatorial Currents.

The location and strength of the NECC is determined by the intertropical convergence zone (ITCZ) of the atmosphere. In the Pacific Ocean it is strongest in May–January when it flows between 5° and 10°N with 0.4–0.6 m s-1; in February–April it is restricted to 4°–6°N with speeds below 0.2 m s-1 and disappears east of 110°W. In the Atlantic Ocean the NECC is observed between 5° and 10°N with speeds of 0.1–0.3 m s-1; it is strongest during August when it flows from South America into the Gulf of Guinea and weakest in February when it is restricted to the region east of 20°W. In the Indian Ocean the NECC exists during the northeast monsoon season only and is then the only countercurrent; it is therefore mostly called the Equatorial Countercurrent. It is centered on 5°S, again the location of the ITCZ.


Copyright 2022 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.