title: Analysis of multi-temporal landsat satellite images for monitoring land surface temperature of municipal solid waste disposal sites.
abstract: This studypresents a remote sensing application of using time series Landsat satellite images for monitoring the Trail Road and Nepean municipal solid waste (MSW) disposal sites in Ottawa, Ontario, Canada. Currently, the Trail Road landfill is in operation; however, during the 1960s and 1980s, the city relied heavily on the Nepean landfill. More than 400 Landsat satellite images were acquired from the US Geological Survey (USGS) data archive between 1984 and 2011. Atmospheric correction was conducted on the Landsat images in order to derive the landfill sites' land surface temperature (LST). The findings unveil that the average LST of the landfill was always higher than the immediate surrounding vegetation and air temperature by 4 to 10 °C and 5 to 11.5 °C, respectively. During the summer, higher differences of LST between the landfill and its immediate surrounding vegetation were apparent, while minima were mostly found in fall. Furthermore, there was no significant temperature difference between the Nepean landfill (closed) and the Trail Road landfill (active) from 1984 to 2007. Nevertheless, the LST of the Trail Road landfill was much higher than the Nepean by 15 to 20 °C after 2007. This is mainly due to the construction and dumping activities (which were found to be active within the past few years) associated with the expansion of the Trail Road landfill. The study demonstrates that the use of the Landsat data archive can provide additional and viable information for the aid of MSW disposal site monitoring.
authors.affiliation: Department of Civil Engineering, Ryerson University, 350 Victoria Street, Toronto, Ontario, M5B 2K3, Canada, waiyeung.yan@ryerson.ca.
authors.forename: Wai Yeung
authors.initials: WY
authors.lastname: Yan
authors.forename: Prathees
authors.initials: P
authors.lastname: Mahendrarajah
authors.forename: Ahmed
authors.initials: A
authors.lastname: Shaker
authors.forename: Kamil
authors.initials: K
authors.lastname: Faisal
authors.forename: Robin
authors.initials: R
authors.lastname: Luong
authors.forename: Mohamed
authors.initials: M
authors.lastname: Al-Ahmad
mesh_terms: D002170:Canada; D002947:Cities; D004784:Environmental Monitoring / Q000379:methods*; D012037:Refuse Disposal / Q000706:statistics & numerical data*; D063809:Satellite Imagery; D013696:Temperature; D064091:Waste Disposal Facilities / Q000706:statistics & numerical data*