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138th RADI Academic Forum: Trend of China’s Air Quality
 Date: 2017-03-27  Page Views:

At the 138th RADI Digital Earth academic forum held on March 3, 2017, Prof. Ronald van der A from the Royal Netherlands Meteorological Institute (KNMI), and Prof. Gerrit de Leeuw and Dr. Larisa Sogacheva from the Finnish Meteorological Institute, were invited to deliver speeches on the development of satellite remote sensing in atmospheric aerosol and polluted gas retrieval, aiming to better understand the trend of China’s air pollutant, therefore to promote academic exchanges in China-EU air quality monitoring. The Forum was presided over by RADI researcher XUE Yong.

Prof. Ronald van der A elaborated in his report the trends of NO2/NOX and SO2 emission being monitored by satellite remote sensing in China during the period from 2005 to 2015, and the impacts of air quality management measures on China’s air quality. He said that the role of regulations on China’s air quality management has been confirmed through satellite monitoring. He also answered questions on air pollutant emission and its satellite monitoring.

Prof. Gerrit de Leeuw analyzed the distribution and change of aerosol in China and particularly in the Beijing-Tianjin-Hebei region over the past two decades mainly by utilizing multi-satellite sources including MODIS, ATSR-2, AATSR and CALIOP. He indicated obvious differences in air conditions and changes of China's different areas. In addition, he analyzed the correlation between the trends and seasonal distribution of aerosol in many years and pollutants such as PM2.5, SO2, NO2, etc. Prof. Gerrit de Leeuw held heated discussions with attendees on the possible causes of the distribution and change of aerosol in China.

Dr. Larisa Sogacheva introduced the observations and data characteristics of AATSR on ESA’s ENVISAT and aerosol retrieval ADV algorithm based on AATSR data as well as the current status of cloud detection and cloud post-processing. She analyzed the AOD results in China acquired through ADV retrieval algorithm in all aspects. Finally, Dr. Larisa Sogacheva explained the detailed problems of algorithm raised by attendees.

Prof. Ronald van der A at the forum.

Prof. Gerrit de Leeuw holds discussions with attendees.

Dr. Larisa Sogacheva holds discussions with attendees.

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