{"id":8552,"date":"2022-09-08T06:44:32","date_gmt":"2022-09-08T10:44:32","guid":{"rendered":"https:\/\/spaceandplanetarynewswire.com\/?p=8552"},"modified":"2022-09-08T06:44:32","modified_gmt":"2022-09-08T10:44:32","slug":"understanding-the-effect-of-wildfires-on-air-quality-a-nasa-initiative","status":"publish","type":"post","link":"https:\/\/spaceandplanetarynewswire.com\/?p=8552","title":{"rendered":"Understanding the Effect of Wildfires on Air Quality: A NASA Initiative"},"content":{"rendered":"
(a) The distribution of \u0394O3\/\u0394CO ratio along the longitude within the wildfire plume and (b) the estimated longitudinal CO plume age distribution based on the NAST-I measurements. Credit: The Authors doi 10.1117\/1.JRS.16.034522<\/figcaption><\/figure>\n

Wildfires, characterized by unplanned, uncontrolled, and unpredictable fires erupting in areas such as forests, grasslands, and prairies, have recently grown in frequency and intensity. Likely resulting from climate change effects, wildfires are increasingly impacting ecosystems and human lives. While wildfires are considered ecologically beneficial, there have been rising concerns over the negative effects, namely degradation of air quality from the smoke and pollutants released.<\/p>\n

In particular, carbon monoxide (CO) and ozone (O3<\/sub>) are major contributors to wildfire-induced air pollution. However, unlike CO, O3<\/sub> is not directly generated during wildfires. Instead, it is produced from O3<\/sub> precursors emitted during wildfires and depends on several factors for its production. This, in turn, complicates the O3<\/sub> production process. Moreover, its presence within wildfire plumes determines the wildfire plume age. Assessing its concentrations is, therefore, necessary to better understand how wildfires affect the air quality, weather, and climate.<\/p>\n

In a recent study published in SPIE\u2019s Journal of Applied Remote Sensing<\/em><\/a>, scientists at NASA Langley Research Center, in collaboration with the National Oceanic and Atmospheric Administration (NOAA), reported their findings on this front in the Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) field campaigns in 2019. The measurements of atmospheric CO and O3<\/sub> levels were performed across the continental USA using a remote sensor called \u201cNational Airborne Sounder Testbed-Interferometer\u201d (NAST-I), which provided both high spatial and spectral resolution.<\/p>\n

\u201c<\/em>The NAST-I, onboard NASA ER-2 aircraft, covers a space large enough to monitor the wildfire plume from its origination, evolution and transport, and provides 3D distributions of the O3<\/sub> and CO concentrations at a higher spatial resolution compared to that of satellite infrared-ultraspectral sensors,\u201d said Dr. Daniel K. Zhou, the principal investigator of NAST-I and the lead author of the study.<\/p>\n

Based on these measurements, the team estimated the plume age by observing the differential concentration ratios of O3<\/sub> and CO, i.e., \u0394O3<\/sub>\/\u0394CO and performing a linear fit with previous observations of wildfire \u0394O3<\/sub>\/\u0394CO ratios. \u201c<\/em>Our results showed enhanced levels of CO in the evolving plume as it was transported away from the site of the fire. The plume age was associated with the plume distance in both vertical and horizontal directions,\u201d Zhou said.<\/p>\n

Overall, this study provides important insights that could prove crucial to a deeper understanding of the effects of wildfires on the atmosphere and the steps needed to mitigate them.<\/p>\n","protected":false},"excerpt":{"rendered":"

Wildfires, characterized by unplanned, uncontrolled, and unpredictable fires erupting in areas such as forests, grasslands, and prairies, have recently grown in frequency and intensity. Likely resulting from climate change effects, wildfires are increasingly impacting ecosystems and human lives. While wildfires are considered ecologically beneficial, there have been rising concerns over the negative effects, namely degradation…<\/p>\n","protected":false},"author":71,"featured_media":8554,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"fifu_image_url":"https:\/\/spie.org\/images\/Graphics\/Newsroom\/2022%20articles\/JARS%20Air%20Quality%20banner%20920x450.png","fifu_image_alt":"Understanding the Effect of Wildfires on Air Quality: a NASA Initiative","footnotes":""},"categories":[207],"tags":[],"class_list":["post-8552","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research"],"_links":{"self":[{"href":"https:\/\/spaceandplanetarynewswire.com\/index.php?rest_route=\/wp\/v2\/posts\/8552","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceandplanetarynewswire.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceandplanetarynewswire.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceandplanetarynewswire.com\/index.php?rest_route=\/wp\/v2\/users\/71"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceandplanetarynewswire.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8552"}],"version-history":[{"count":1,"href":"https:\/\/spaceandplanetarynewswire.com\/index.php?rest_route=\/wp\/v2\/posts\/8552\/revisions"}],"predecessor-version":[{"id":8553,"href":"https:\/\/spaceandplanetarynewswire.com\/index.php?rest_route=\/wp\/v2\/posts\/8552\/revisions\/8553"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceandplanetarynewswire.com\/index.php?rest_route=\/wp\/v2\/media\/8554"}],"wp:attachment":[{"href":"https:\/\/spaceandplanetarynewswire.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8552"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceandplanetarynewswire.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8552"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceandplanetarynewswire.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8552"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}