Ross Bunn deleted file untitled.tex  about 9 years ago

Commit id: a9bdd4a0134758a71c0e3f629086431ae8c39495

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Colman 1990 - climatology EL TS identified by:  Surface reports of thunderstorms, and 00Z and 12Z sfc, 850hPa, 700 hPa, 50hPa pressure and θe, and the following criteria: 1. Report lies on the cold side of an analysed front, 2. station temp, pressure, dew point consistent with surroundings (repor+D9ts in mountainous terrain are excluded by this criteria). 3. surface air in warm sector must have higher θe than air on the surface cold side. 4. surface air lifted psuedoadiabatically to 50hPa must have temperatures LESS than 850hPa lifted air temperatures lifted to 50hPa (eliminate poorly analysed surface fronts). Associated with each event were observations of 850 and 50 hPa horizontal wind shear, confluence or diffluence. Reports=1093 Events=497 events (2 rep/event).