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DESCRIPTION: \n\n \n\nRemote Sensing of Atmospheric Carbonyl sulfide and\n
 \nMethane for Understanding of Carbon Cycle\, \n\nClimate Change\, And Sus
 tainability\n\n \n\n \n\nby Dr. Le Kuai\n\n \n\nAssistant Researcher\, UCL
 A\n\nJoint Institute for Regional Earth System Science Engineering\n\n \n
 \nUnderstanding the processes controlling greenhouse gases is essential fo
 r designing appropriate policies to help mitigate climate change. With adv
 anced technology\, important carbon-containing anthropogenic greenhouses g
 ases such as CO2\, CH4 and carbonyl sulfide (OCS) have been monitored dail
 y and globally by satellite instruments\, including NASA OCO-2 (for CO2)\,
  JAXA GOSAT (for CO2 and CH4)\, and NASA Aura TES (for CO2 and OCS).\n\nTe
 rrestrial photosynthesis is the primary CO2 sink over land and is importan
 t for understanding the fate of atmospheric CO2. Previous attempts measuri
 ng CO2 alone cannot accurately characterize photosynthetic intake because 
 of the simultaneous\, CO2-releasing process of respiration. OCS\, which is
  involved in photosynthesis only\, has therefore been introduced as a new 
 tracer of photosynthesis. I will discuss my work on the retrieval algorith
 m of free tropospheric OCS and the inverse modeling of OCS surface flux\, 
 using TES thermal infrared observations at the top of atmosphere. This wor
 k presents the first evidence of the tropical oceanic missing source over 
 the Indo-Pacific region.\n\nCH4\, being the second most important anthropo
 genic greenhouse gas\, impacts on both climate and air quality but our kno
 wledge about the CH4 cycle is far from complete. CH4 emissions from fugiti
 ve sources such as from livestock feeding lots\, oil tanks\, and natural g
 as facilities are believed to be underestimated. These small-scale sources
  are hard to be detected from space. The NASA JPL’s airborne Hyperspectral
  Thermal Emission Spectrometer (HyTES) has recently been proposed to surve
 y fugitive CH4 emissions over city-scale regions. I will show the quantita
 tive retrieval of HyTES detected CH4 plumes from the Kern River Oil Field 
 (KROF) near Bakersfield and the recent Aliso Canyon gas leaking\, Californ
 ia.\n\n \n\nThursday\, March 16\, 2017 | 3:30 p.m. | Burnside Hall | Room 
 934\n\n \n\nCoffee will be available.  We hope you will be able to attend!
 \n
DTSTART:20170316T193000Z
DTEND:20170316T213000Z
LOCATION:Room 934\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue 
 Sherbrooke Ouest
SUMMARY:Departmental Seminar: Remote Sensing of Atmospheric Carbonyl sulfid
 e and Methane for Understanding of Carbon Cycle\, Climate Change\, And Sus
 tainability by Dr. Le Kuai
URL:/meteo/channels/event/departmental-seminar-remote-
 sensing-atmospheric-carbonyl-sulfide-and-methane-understanding-carbon-2670
 65
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