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DTSTAMP:20250922T175233Z
DESCRIPTION:Atmospheric and Oceanic Sciences Departmental Seminar Series\n
 \npresents\n\nCloud and Water Vapour Observations from Far IR Radiometry\n
 \na talk by\n	J.-P. Blanchet\n	Professor\, ESCER Centre\, Université du Québ
 ec à Montréal (UQAM)\n\nThe Arctic is most affected by climate change due 
 to polar amplification\, primarily driven by the overall water cycle throu
 gh surface and air interactions. Powerful interactions between\, atmospher
 ic water\, clouds\, precipitation\, radiation and general circulation are 
 at the core of climate dynamics in the High Latitudes with an extension of
  their effect to storm activity to mid latitudes\, especially in the cold 
 season. During the polar night\, atmospheric water concentration in all ph
 ase\, tends to be highly tenuous. Since very dry atmosphere become more tr
 ansparent to infrared radiation\, temperature drops more effectively. Henc
 e\, the atmospheric dynamics of the polar vortex is greatly strengthened w
 ith indirect consequence of storm activity along the midlatitude jet strea
 m. In the high latitudes\, atmospheric models are often plagued by warm an
 d moist biases\, especially during the polar night. In the context of YOPP
  and in collaboration with ECCC and CANDAC/PAHA\, we are conducting resear
 ch aimed to improve our capability to monitor key elements of the atmosphe
 ric water cycle from far IR observations. Two well equipped polar observat
 ion sites\, Iqaluit and Eureka in Nunavut\, are used to advance the reliab
 ility monitoring essential variables of the atmospheric water balance. Spe
 ctrally resolved from the mid to far IR instruments\, a FIRR (radiometer) 
 and an E-AERI (interferometer)\, are used together with lidar\, radar\, pr
 ofilers and radiosondes to produce comprehensive datasets of water concent
 ration\, clouds and precipitation microphysics. Endorsed by YOPP\, this pr
 oject aims to enhance atmospheric water and cloud monitoring\, model param
 eterization and prediction of weather and climate through new ground-based
  and satellite far IR instruments. The new FIRR instrument is a prototype 
 of the TICFIRE satellite developed for CSA in the context of the Aerosol-C
 loud\, Convection and Precipitation (A-CCP) program at NASA. In this prese
 ntation\, I will summarize our research activities.\n\nMonday Sep 16/ 3:30
  PM/ Burnside Hall/ Room 934\n
DTSTART:20190916T193000Z
DTEND:20190916T210000Z
LOCATION:Room 934
SUMMARY:Cloud and Water Vapour Observations from Far IR Radiometry
URL:/meteo/channels/event/cloud-and-water-vapour-obser
 vations-far-ir-radiometry-300193
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