Remote Sensing of Pollution in China Dan Yu December 10 th 2009

Why China? Heavy Industrialization –Large increase in primary energy consumption mainly fueled by coal Large Population –Adverse health effects, premature deaths (3/4 of a million due to air and water pollution) Lack of extensive ground-based monitoring system

Population Density

Select Remote Sensing Tools Considered: OMI MOPITT MODIS SeaWiFS Calipso SCIAMCHY

OMI Ozone Monitoring Instrument On board NASA Aura Can provide global coverage in a day Measure key air quality components Distinguish between aerosol types Combination of algorithms used to extract data

OMI Average ( ) SO2 burdens over China

MODIS Moderate Resolution Imaging Spectroradiometer On board Terra (EOS AM) and Aqua (EOS PM) Captures data in 36 spectral bands Images the entire Earth every 1 to 2 days Multitude of uses

Algal Bloom

Aerosol Particle Size Hong Kong

SeaWiFS Sea-viewing Wide Field-of-view Sensor Onboard OrbView-2 (AKA SeaStar) Specifically designed to monitor ocean characteristics…

MOPITT Measurements of Pollution in the Troposphere Onboard Terra Measure pollution patterns and effects in lower atmosphere –Mainly CO, but can measure methane First to use gas correlation spectroscopy Swaths are 640 km wide

Calipso Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations Part of A Train Actively measures global aerosols and clouds Provides data on altitude of aerosol layers in the atmosphere

08&orbit_time= &page=1&granule_name=CAL_LID_L1_Exp-Prov-V T Z.hdf

disc.sci.gsfc.nasa.gov/oceancolor/additional/science-focus/locus/air_pollution.shtml#omi

SCIAMACHY SCanning Imaging Absorption SpectroMeter for Atmospheric CartograpHY Onboard ENVISAT Primary Objective: Perform global measurements of trace gases in the troposphere and in the stratosphere.

Conclusions Many remote sensing tools can be used –Many other remote sensors not discussed –Overlaps Strides to reduce pollution in China –Remote sensors will help track progress –Tracking of areas for federal compliance

Thanks! Questions?

Works Consulted NASA – NASA Images – Tropospheric Emission Monitoring Internet Service – Netherlands Institute for Space Research – University of Bremen Institute of Environmental Physics –