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UID:20250819T005526EDT-212155pvTb@132.216.98.100
DTSTAMP:20250819T045526Z
DESCRIPTION:Dr. Ron McTaggart-Cowan\, Research Scientist\, Atmospheric Nume
 rical Weather\n	Prediction Research\, Environment and Climate Change Canada
  (ECCC)\n\nTitle:  The Baroclinic Moisture Flux\n\nAbstract:  As subsatura
 ted air ascends sloping isentropic surfaces\, adiabatic\n	expansion results
  in cooling and relative moistening. This process is an\n	effective way to 
 precondition the atmosphere for efficient moist processes\n	while bringing 
 parcels to saturation\, and thereafter acts to maintain\n	saturation during
  condensation. The goal of this study is to develop a\n	diagnostic quantity
  that highlights circulations and regions in which the\n	process of parcel 
 moistening by isentropic ascent is active. Among the many\n	features that r
 ely on this process for the generation of an important fraction\n	of their 
 energy are oceanic cyclones\, transitioning tropical cyclones\, warm\n	conv
 eyor belts\, diabatic Rossby vortices\, and predecessor rain events. The\n
 	baroclinic moisture flux (BMF) is defined as moisture transport by the\n	co
 mponent of vertical motion associated with isentropic upgliding. In warm\n
 	conveyor belt and diabatic Rossby vortex case studies\, the BMF appears to
  be\n	successful in identifying the portion of the circulation in which thi
 s process\n	is actively bringing parcels to saturation to promote the forma
 tion of clouds\n	and precipitation. On a broader scale\, the climatological
  maxima of the BMF\n	highlight regions in which parcel moistening by isentr
 opic ascent is\n	anticipated to have a non-negligible impact on the atmosph
 eric state either\n	through the action of the mean flow or via the repeated
  occurrence of isolated\n	large-BMF events. The process-centric foundation 
 of the BMF makes it useful as\n	a filtering or exploratory variable\, with 
 the potential for extension into\n	predictive applications.\n
DTSTART:20170130T203000Z
DTEND:20170130T220000Z
LOCATION:Room 934\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue 
 Sherbrooke Ouest
SUMMARY:Departmental Seminar: The Baroclinic Moisture Flux by Dr. Ron McTag
 gart-Cowan
URL:/meteo/channels/event/departmental-seminar-barocli
 nic-moisture-flux-dr-ron-mctaggart-cowan-265352
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