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- Q2642493 subject Q6207675.
- Q2642493 subject Q7400752.
- Q2642493 subject Q8383188.
- Q2642493 abstract "The North American High (also Canadian High/Anticyclone, sometimes in Europe Greenland High/Anticyclone) is an impermanent high-pressure area or anticyclone created by anticyclogenesis (anticyclone + the Greek word genesis, meaning "birth, origin"), a formative process that occurs when cool or cold dry air settles over North America. North American Highs move eastwards across the continent, often in the company of one or more low-pressure cells or cyclones. Its cold, dense air does not extend usually above 3 km (1.9 mi), lower than the Canadian Rockies. Sometimes, in winter it breaks free and passes over the Rockies and brings a cold front into Southwestern United States and Mexico, freezing crops and bringing snow into Mexico's mountains as far south as Jalisco. The high’s usual location east of the Rockies shelters it from the relatively warm Pacific Ocean and helps it maintain its strength. The average January sea level pressure at its centre is about 1,020 millibars (30.12 inches of mercury). The Canadian high often moves southeastward until it eventually reaches the Atlantic Ocean, where it merges with the Azores high. In the summer the Canadian high circulates cool, dry air to the United States east of the Rockies and parts of southern Canada.The North American High is akin to the Siberian High of Eurasia, but it is much smaller, and it has much less influence, merely affecting the weather of the Northern Hemisphere. The sea-level pressure (atmospheric pressure) rarely, if ever, exceeds 1055.0 millibars (1055.0 hectopascals)(hPa)(SI). Often, in the winter months, cool or cold dry air settles over the land in the vicinity of the Great Basin where it builds into a high-pressure cell or anticyclone that moves across the United States with a cold front on its leading edge. After reaching the Atlantic Ocean, the moist environment brings on changes of the qualities of the air and the dissipation of the high-pressure cell or anticyclone as the cold air warms and becomes humid.In Europe, a portion of the North American/Canadian high usually over Greenland called the Greenland high which settles over Greenland affects northern European weather and may merge with the Scandinavian High.".
- Q2642493 wikiPageWikiLink Q103510.
- Q2642493 wikiPageWikiLink Q12457.
- Q2642493 wikiPageWikiLink Q13160.
- Q2642493 wikiPageWikiLink Q1353201.
- Q2642493 wikiPageWikiLink Q1709543.
- Q2642493 wikiPageWikiLink Q177414.
- Q2642493 wikiPageWikiLink Q209190.
- Q2642493 wikiPageWikiLink Q210316.
- Q2642493 wikiPageWikiLink Q223.
- Q2642493 wikiPageWikiLink Q30.
- Q2642493 wikiPageWikiLink Q39061.
- Q2642493 wikiPageWikiLink Q44395.
- Q2642493 wikiPageWikiLink Q488578.
- Q2642493 wikiPageWikiLink Q489264.
- Q2642493 wikiPageWikiLink Q49.
- Q2642493 wikiPageWikiLink Q5401.
- Q2642493 wikiPageWikiLink Q6207675.
- Q2642493 wikiPageWikiLink Q642683.
- Q2642493 wikiPageWikiLink Q7241719.
- Q2642493 wikiPageWikiLink Q7400752.
- Q2642493 wikiPageWikiLink Q79602.
- Q2642493 wikiPageWikiLink Q81809.
- Q2642493 wikiPageWikiLink Q8383188.
- Q2642493 wikiPageWikiLink Q9129.
- Q2642493 wikiPageWikiLink Q966943.
- Q2642493 wikiPageWikiLink Q97.
- Q2642493 wikiPageWikiLink Q98.
- Q2642493 comment "The North American High (also Canadian High/Anticyclone, sometimes in Europe Greenland High/Anticyclone) is an impermanent high-pressure area or anticyclone created by anticyclogenesis (anticyclone + the Greek word genesis, meaning "birth, origin"), a formative process that occurs when cool or cold dry air settles over North America. North American Highs move eastwards across the continent, often in the company of one or more low-pressure cells or cyclones.".
- Q2642493 label "North American High".