Results 71 to 80 of about 14,602 (246)

Development of mobile lidar complex for remote sensing of greenhouse gases in the troposphere on the horizontal (inclined) paths [PDF]

E3S Web of Conferences
The mobile lidar complex for measuring the spatial distribution of ozone (O3) and methane (CH4) concentrations in the troposphere on horizontal (inclined) sensing paths in the ultraviolet (UV) and infrared (IR) spectral regions is presented.
Nevzorov Alexey, Yakovlev Semen, Sadovnikov Sergey, Nevzorov Aleksey   +3 more
doaj   +1 more source

An Evaluation of WRF‐Chem's Performance in Simulating PM2.5 in West African Cities

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract West Africa experiences some of the highest particulate pollution levels globally due to Saharan dust, biomass burning and urban emissions. Despite the severe health burden, air quality monitoring remains sparse. This study evaluates WRF‐Chem's performance in simulating PM2.5 levels across seven West African cities in 2021 using newly ...
Aara’L Y. Yarber, Gregory S. Jenkins
wiley   +1 more source

Remote sensing of air pollution incorporating integrated-path differential-absorption and coherent-Doppler lidar

Defence Technology
An innovative complex lidar system deployed on an airborne rotorcraft platform for remote sensing of atmospheric pollution is proposed and demonstrated.
Ze-hou Yang, Yong Chen, Chun-li Chen, Yong-ke Zhang, Ji-hui Dong, Tao Peng, Xiao-feng Li, Ding-fu Zhou   +7 more
doaj   +1 more source

Measurements of Ozone Vertical Profiles in the Upper Troposphere–Stratosphere over Western Siberia by DIAL, MLS, and IASI

Atmosphere, 2020
The purpose of this work is to measure the ozone vertical distribution (OVD) in the upper troposphere−stratosphere by differential absorption lidar (DIAL) at 299/341 nm and 308/353 nm and to compare and analyze the results against satellite data. А
Sergey Dolgii, Alexey A. Nevzorov, Alexey V. Nevzorov, Yurii Gridnev, Olga Kharchenko   +4 more
doaj   +1 more source

On the Measurement of Atmospheric Density Using Dial in the O2 A-Band (770 Nm) [PDF]

Differential Absorption Lidar (DIAL) measurements in the A-band of molecular oxygen were suggested as a means of profiling atmospheric density.
Cotnoir, L. J., Schwemmer, G. K., Singh, U. N., Wilkerson, T. D.   +3 more
core   +1 more source

Regional Transport in the Arctic: Sensitivity of NOx and Particulate Matter in Wintertime Urban Alaska to Background Air

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract Fairbanks, Alaska is an example of a subarctic city that experiences severe wintertime air quality episodes characterized by high concentrations of fine particulate matter (PM2.5) and nitrogen oxides (NO and NO2 = NOx). Previous research into these air quality episodes has focused on the impact of surface‐based inversions that trap local ...
Alicia Hoffman, Steve R. Arnold, Dwayne Heard, Lisa Whalley, Natalie Brett, Kathy S. Law, Jean‐Christophe Raut, Tatsuo Onishi, Slimane Bekki, William R. Simpson, Meeta Cesler‐Maloney, Brice Barret, Roman Pohorsky, Julia Schmale, Brice Temime‐Roussel, Barbara D’Anna   +15 more
wiley   +1 more source

Validation of double-pulse 1572 nm integrated path differential absorption lidar measurement of carbon dioxide

EPJ Web of Conferences, 2018
A ground-based double-pulse 1572 nm integrated path differential absorption (IPDA) lidar was developed for carbon dioxide (CO2) column concentrations measurement.
Du Juan, Liu Jiqiao, Bi Decang, Ma Xiuhua, Hou Xia, Zhu Xiaolei, Chen Weibiao   +6 more
doaj   +1 more source

Correction of Doppler-broadened Rayleigh backscattering effects in H2O dial measurements [PDF]

, 1986
A general method of solutions for treating effects of Doppler-broadened Rayleigh backscattering in H2O Differential Absorption Lidar (DIAL) measurements are described and discussed. Errors in vertical DIAL measuremtns caused by this laser line broadening
Ansmann, A., Bosenberg, J.
core   +1 more source

Improved Dust Microphysical Retrieval From LiDAR by Introducing a Priori Constraints From In Situ and Laboratory Measurements

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract The accuracy of height‐resolved dust microphysical retrieval from LiDARs has been greatly improved by the recently developed BOREAL (Basic algOrithm for REtrieval of Aerosol with LiDAR) algorithm which describes non‐spherical dust particles with the Irregular‐Hexahedral (IH) model and inverts 3β (backscattering at 355, 532, and 1,064 nm) + 2α (
Yuyang Chang, Qiaoyun Hu, Philippe Goloub, Thierry Podvin   +3 more
wiley   +1 more source

Triple-Pulsed Two-Micron Integrated Path Differential Absorption Lidar: A New Active Remote Sensing Capability with Path to Space

EPJ Web of Conferences, 2016
The two-micron wavelength is suitable for monitoring atmospheric water vapor and carbon dioxide, the two most dominant greenhouse gases. Recent advances in 2-μm laser technology paved the way for constructing state-of-the-art lidar transmitters for ...
Singh Upendra N., Refaat Tamer F., Petros Mulugeta, Yu Jirong   +3 more
doaj   +1 more source