REMOTE SENSING OF TROPOSPHERIC COMPOSITION Daniel J. Jacob.
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Transcript of REMOTE SENSING OF TROPOSPHERIC COMPOSITION Daniel J. Jacob.
REMOTE SENSING OF TROPOSPHERIC COMPOSITIONREMOTE SENSING OF TROPOSPHERIC COMPOSITION
Daniel J. Jacob
WHY OBSERVE TROPOSPHERIC COMPOSITION FROM SPACE?WHY OBSERVE TROPOSPHERIC COMPOSITION FROM SPACE?
Monitoring and forecastingof air quality: ozone, aerosols
Long-range transport of pollution
Monitoring of sources:pollution and greenhousegases
• solar backscatter• thermal emission• solar occultation• lidar
FOUR OBSERVATIONMETHODS:
Global/continuous measurement capability important for range of issues:
Radiative climate forcing
TROPOSPHERIC COMPOSITION FROM SPACE:TROPOSPHERIC COMPOSITION FROM SPACE:platforms, instruments, speciesplatforms, instruments, species
Sensor TOMS GOME MOPITT MISR MODIS AIRS SCIA-MACHY
TES MLS OMI OCO
Platform (launch)
multi
(1979-)
ERS-2 (1995)
Terra Aqua
(1999) ( 2002)
Envisat (2002)
Aura
(2004) 2008
ozone X (tro-pics)
X X X X
CO X X X X X
CO2 X X X
CH4 X
NO2 X X X
HNO3 X
HCHO X X
BrO X X X
aerosol X X
K. Folkert Boersma (Harvard)
TROPOSPHERIC NOTROPOSPHERIC NO22 FROM OMI: FROM OMI:
MAPPING OF NITROGEN OXIDE EMISSIONSMAPPING OF NITROGEN OXIDE EMISSIONS
October 2004
K. Folkert Boersma (Harvard)
TROPOSPHERIC NOTROPOSPHERIC NO22 FROM OMI: ZOOM ON U.S. AND MEXICO FROM OMI: ZOOM ON U.S. AND MEXICO
MILAGRO campaign, March 2006
FORMALDEHYDE FROM OMI:FORMALDEHYDE FROM OMI:MAPPING OF REACTIVE HYDROCARBON SOURCESMAPPING OF REACTIVE HYDROCARBON SOURCES
Shows vegetation to be dominant; anthropogenic source hardly detectable
Thomas Kurosu (Harvard/SAO) and Dylan B. Millet (Harvard)
• Continuous mapping of tropospheric columns of O3, aerosols, CO, CH2O, NO2, SO2
• Continental-scale for GEO, full sunlit disk for L1
• km-scale resolution
LOOKING TOWARD THE FUTURE:LOOKING TOWARD THE FUTURE:GEOSTATIONARY AND L1 MISSIONSGEOSTATIONARY AND L1 MISSIONS
GEO L1