EXAMPLE EVENT ANALYSIS
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Event Analysis from NARE-93
NGM Model Skew-T, Log-P Diagrams
A skew-t diagram (from the NGM data archive) near New York City on the
27th at 1800 UTC clearly shows a well mixed layer capped by an
inversion at about 850 hPa (or 1500 m). However by the 28th at 1800 UTC,
near Yarmouth, NS, the entire lower troposphere is weakly stable, drying out
about 700 hPa, well above the pollutant plume. The modification to more
stable conditions is in part a product of the transport over colder surface
waters. The greater stability on the 28th suggests that vertical
mixing will be weak.
NGM Skew-t/Log-P diagram near New York City at 1800 UTC, August 27, 1993
NGM Skew-t/Log-P diagram near Yarmouth, NS at 1800 UTC, August 28, 1993
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NGM Skew-t/Log-P diagram near New York City at 1800 UTC, August 27, 1993 |
NGM Skew-t/Log-P diagram near Yarmouth, NS at 1800 UTC, August 28, 1993 |