File:CPC-NCEP-NOAA Blocking strength GHGS 6 Apr - 6 Jul 2015.png

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Description	English: All colored regions in the hovmoller plot below depict regions where the flow is blocked according to the blocking index (Tibaldi and Molteni 1990). The color scheme denotes the strength of the blocked flow as determined from the 500 hPa geopotential height gradient measured from the blocking ridge equatorward (denoted GHGS in blocking index definition). The presence of an intense cutoff low equatorward of the blocking ridge can act to enhance the blocking strength. (Text after NOAA, Blocking), Illustrates early 2015 blockings; heat waves in India, Pakistan, U.S. West coast and Europe,
Date	6 July 2015
Source	NOAA NCEP CPC > Climate & Weather Linkage > Blocking: 1panel_ghgs_obs_nh_nrm.gif
Author	NOAA / National Weather Service / National Centers for Environmental Prediction / Climate Prediction Center Internet Team
Other versions	500-hPa Hight anomalies of same period

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current	04:25, 14 July 2015		502 × 498 (20 KB)	W!B: (talk \| contribs)	=={{int:filedesc}}== {{Information \|description={{en\|1=All colored regions in the hovmoller plot below depict regions where the flow is blocked according to the blocking index (Tibaldi and Molteni 1990). The color scheme denotes the strength of the blo...

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