Cartography in Early Warning and Crisis Management

Remote sensing for disaster risk reduction

4504.2 - Mapping Air Pollutant Concentrations in Northern China during 2014-2015 using MODIS Aerosol Optical Depth Products

Tuesday, July 4
1:50 PM - 2:10 PM
Location: Virginia B

This paper presents a case study about the use of quantitative earth observations for environmental health research carried out at the Faculty of Environment, University of Waterloo, Canada. The study is about an estimation on PM2.5 distribution in the Beijing-Tianjin-Hebei (BTH) region in northern China from September 2014 to August 2015 by combining the MODIS satellite data, ground measurements of PM2.5, and meteorological documents. Firstly, the 3 km and 10 km MODIS AOD products were validated with AErosol RObotic NETwork (AERONET AOD. Then the MLR and GWR models were employed respectively to estimate PM2.5 concentrations using ground measurements and two MODIS AOD products, meteorological datasets and land use information. Seasonal and regional analyses were also followed to make a comparative study on strengths and weaknesses between the 3 km and 10 km AOD products. Finally, the number of non-accidental deaths attributed to the long-term exposure of PM2.5 in the BTH region was estimated spatially. The results demonstrated that the 10 km AOD product provided results with a higher accuracy and greater coverage, although the 3 km AOD product could provide more information about the spatial variations of PM2.5 estimation. Additionally, compared with the global regression, the geographically weighed regression model was able to improve the estimation results. Finally, it was estimated that more than 30,000 people died in the BTH region during the study period attributed to the excessive PM2.5 concentrations.

Jonathan Li

Professor
University of Waterloo

Jonathan Li is a full professor with the Department of Geography and Environmental Management, University of Waterloo, Waterloo, Ontario, Canada, He received the PhD degree in remote sensing and geoinformatics from the University of Cape Town, South Africa in 2000. His research interests include information extraction from earth observation imagery and mobile laser scanning data. He is chair of the ICA Commission on SEnsor-driven Mapping (2015-2019). He is Associate Editor of IEEE-TITS, IEEE-JSTARS, and Sensors.

Presentation(s):

Send Email for Jonathan Li

Judith Maryna Storie

Dr
Geographic Risk Management (GRM)

Dr Storie is skilled in spatial and non-spatial analytical assessment of geographical data related to disaster risks. She applies Geoinformatics in disaster risk reduction in particular. As a multi-disciplinary expert that is able to conceptualise real-world challenges, she designs programmes to investigate and analyse the challenges that the intersection between hazards and vulnerabilities pose. She serves among others as specialist advisor on various South African Disaster Risk Advisory Forums. She is a Climate Change Adaptation specialist and Carbon Footprint Analyst. Her work focusses on Risk Management with a strong Geoinformatics focus, and human settlement vulnerability to disaster risks.

Presentation(s):

Send Email for Judith Storie


Assets

4504.2 - Mapping Air Pollutant Concentrations in Northern China during 2014-2015 using MODIS Aerosol Optical Depth Products



Attendees who have favorited this

Please enter your access key

The asset you are trying to access is locked. Please enter your access key to unlock.

Send Email for Mapping Air Pollutant Concentrations in Northern China during 2014-2015 using MODIS Aerosol Optical Depth Products