Teleconnections: Pacific North American Pattern - Climate …
2005年12月12日 · The daily PNA index corresponds to the PNA patterns, which vary from one month to the next. Click here for the methodology used to calculate the daily PNA index. The …
Pacific North American Pattern (PNA) - Climate Prediction Center
2005年5月18日 · The loading patterns for January, April, July, and October, are displayed so that the plotted value at each grid point represents the temporal correlation between the monthly …
What is the Pacific North America Pattern? - World Climate …
2021年9月8日 · The PNA is largely driven by the pressure pattern over the Aleutian Islands, which forms a dipole with the pressure over Western Canada. The 500mb maps below show a …
Pacific-North American Index (PNA) | National Centers for …
The Pacific/ North American (PNA) pattern is one of the most prominent modes of low-frequency variability in the Northern Hemisphere extratropics, appearing in all months except June and …
Pacific/North American (PNA) Index - University of Washington
PNA series plotted for all calendar months, with positive and negative values during November through March indicated by red and blue shading, respectively. Pattern plotted as a regression …
Climate Variability: Pacific–North American Pattern
2009年9月1日 · This pattern, known as the Pacific-North American teleconnection pattern or PNA, influences regional weather by affecting the strength and location of the East Asian jet stream, …
我院刘忠方教授在PNAS发文揭示过去千年太平洋－北美型遥相关（PNA）变化
2017年3月17日 · 太平洋－北美型遥相关（PNA）是北半球大气内部变化的一种重要模态，其异常可导致北半球大气环流格局发生改变，从而强烈影响北美地区的天气、气候、水文、生态及森 …
黄刚等-ERL: 单年和多年厄尔尼诺对PNA遥相关波列的不同影响
2024年11月20日 · 针对这一问题，中国科学院大气物理研究所黄刚研究员团队基于观测和再分析数据发现，PNA波列在单年厄尔尼诺的发展年冬季、多年厄尔尼诺的第一个发展年冬季和第二个 …
The Pacific-North American Pattern: the stomach sleeper of the ...
2019年4月23日 · Climate.gov map using NCEP/NCAR reanalysis data. These changes to the atmospheric circulation influence surface climate conditions. During the positive PNA, a big …
Pacific/North American (PNA) - Climate Prediction Center
2012年1月10日 · The Pacific/ North American teleconnection pattern (PNA) is one of the most prominent modes of low-frequency variability in the Northern Hemisphere extratropics. The …