File:CPC-NCEP-NOAA Blocking strength GHGS 20 Oct 2018 - 20 Jan 2019.png
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CPC-NCEP-NOAA_Blocking_strength_GHGS_20_Oct_2018_-_20_Jan_2019.png (518 × 498 pixels, file size: 9 KB, MIME type: image/png)
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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). |
| Date | |
| 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 |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:36, 22 January 2019 | | 518 × 498 (9 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 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 en... |
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