2019–20 Australian Bushfires and Anomalies in Carbon Monoxide Surface and Column Measurements
Open Access
- 10 June 2021
- journal article
- research article
- Published by MDPI AG in Atmosphere
- Vol. 12 (6), 755
- https://doi.org/10.3390/atmos12060755
Abstract
In Australia, bushfires are a natural part of the country’s landscape and essential for the regeneration of plant species; however, the 2019–20 bushfires were unprecedented in their extent and intensity. This paper is focused on the 2019–20 Australian bushfires and the resulting surface and column atmospheric carbon monoxide (CO) anomalies around Wollongong. Column CO data from the ground-based Total Carbon Column Observing Network (TCCON) and Network for the Detection of Atmospheric Composition Change (NDACC) site in Wollongong are used together with surface in situ measurements. A systematic comparison was performed between the surface in situ and column measurements of CO to better understand whether column measurements can be used as an estimate of the surface concentrations. If so, satellite column measurements of CO could be used to estimate the exposure of humans to CO and other fire-related pollutants. We find that the enhancements in the column measurements are not always significantly evident in the corresponding surface measurements. Topographical features play a key role in determining the surface exposures from column abundance especially in a coastal city like Wollongong. The topography at Wollongong, combined with meteorological effects, potentially exacerbates differences in the column and surface. Hence, satellite column amounts are unlikely to provide an accurate reflection of exposure at the ground during major events like the 2019–2020 bushfires.Funding Information
- Australian Research Council (FT180100327, DP160100598)
This publication has 63 references indexed in Scilit:
- Australia's Black Saturday fires – Comparison of techniques for estimating emissions from vegetation firesAtmospheric Environment, 2012
- Estimated Global Mortality Attributable to Smoke from Landscape FiresEnvironmental Health Perspectives, 2012
- Sources of variations in total column carbon dioxideAtmospheric Chemistry and Physics, 2011
- Total column CO2 measurements at Darwin, Australia – site description and calibration against in situ aircraft profilesAtmospheric Chemistry and Physics, 2010
- Monitoring of atmospheric composition using the thermal infrared IASI/MetOp sounderAtmospheric Chemistry and Physics, 2009
- The HITRAN 2008 molecular spectroscopic databaseJournal of Quantitative Spectroscopy and Radiative Transfer, 2009
- Impacts of biomass burning on tropospheric CO, NOx, and O3Published by American Geophysical Union (AGU) ,2000
- Distributions and recent changes of carbon monoxide in the lower troposphereJournal of Geophysical Research: Atmospheres, 1998
- The Measurements of Pollution in the Troposphere (MOPITT) Instrument: Overall Performance and Calibration RequirementsJournal of Atmospheric and Oceanic Technology, 1996
- Biomass Burning in the Tropics: Impact on Atmospheric Chemistry and Biogeochemical CyclesScience, 1990