TY - JOUR
T1 - UV polarization lidar for remote sensing new particles formation in the atmosphere
AU - David, Grégory
AU - Thomas, Benjamin
AU - Dupart, Yoan
AU - Danna, Barbara
AU - George, Christian
AU - Miffre, Alain
AU - Rairoux, Patrick
PY - 2014
Y1 - 2014
N2 - Understanding new particles formation in the free troposphere is key for air quality and climate change, but requires accurate observation tools. Here, we discuss on the optical requirements ensuring a backscattering device, such as a lidar, to remotely observe nucleation events promoted by nonspherical desert dust or volcanic ash particles. By applying the Mie theory and the T-matrix code, we numerically simulated the backscattering coefficient of spherical freshly nucleated particles and nonspherical particles. We hence showed that, to remotely observe such nucleation events with an elastic lidar device, it should operate in the UV spectral range and be polarization-resolved. Two atmospheric case studies are proposed, on nucleation events promoted by desert dust, or volcanic ash particles. This optical pathway might be useful for climate, geophysical and fundamental purposes, by providing a range-resolved remote observation of nucleation events.
AB - Understanding new particles formation in the free troposphere is key for air quality and climate change, but requires accurate observation tools. Here, we discuss on the optical requirements ensuring a backscattering device, such as a lidar, to remotely observe nucleation events promoted by nonspherical desert dust or volcanic ash particles. By applying the Mie theory and the T-matrix code, we numerically simulated the backscattering coefficient of spherical freshly nucleated particles and nonspherical particles. We hence showed that, to remotely observe such nucleation events with an elastic lidar device, it should operate in the UV spectral range and be polarization-resolved. Two atmospheric case studies are proposed, on nucleation events promoted by desert dust, or volcanic ash particles. This optical pathway might be useful for climate, geophysical and fundamental purposes, by providing a range-resolved remote observation of nucleation events.
UR - http://www.scopus.com/inward/record.url?scp=84899788397&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84899788397&partnerID=8YFLogxK
U2 - 10.1364/OE.22.0A1009
DO - 10.1364/OE.22.0A1009
M3 - Article
AN - SCOPUS:84899788397
SN - 1094-4087
VL - 22
SP - A1009-A1022
JO - Optics Express
JF - Optics Express
IS - SUPPL. 3
ER -