Articles with "lidar measurements" as a keyword



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The influence of particle concentration and bulk characteristics on polarized oceanographic lidar measurements

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Published in 2022 at "Limnology and Oceanography"

DOI: 10.1002/lno.12088

Abstract: Oceanographic lidar measurements of the linear depolarization ratio, δ, contain information on the bulk characteristics of marine particles that could improve our ability to study ocean biogeochemistry. However, a scarcity of information on the polarized… read more here.

Keywords: lidar measurements; influence; bulk characteristics; particle ... See more keywords
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Retrieval of mesospheric sodium from OSIRIS nightglow measurements and comparison to ground-based Lidar measurements

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Published in 2021 at "Journal of Atmospheric and Solar-Terrestrial Physics"

DOI: 10.1016/j.jastp.2021.105556

Abstract: Abstract The understanding of the excitation mechanism of the sodium D-line nightglow emission is important for many investigations of atomic sodium in the upper mesosphere region. In 1939, Sidney Chapman proposed a first scheme of… read more here.

Keywords: lidar measurements; ground based; lidar; sodium ... See more keywords
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Distribution and transport characteristics of fine particulate matter in beijing with mobile lidar measurements from 2015 to 2018.

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Published in 2022 at "Journal of environmental sciences"

DOI: 10.1016/j.jes.2021.06.013

Abstract: Accurately quantifying the concentration and transport flux of atmospheric fine particulate matter (PM2.5) is vital when attempting to thoroughly identify the pollution formation mechanism. In this study, the mobile lidar measurements in Beijing on heavily… read more here.

Keywords: lidar measurements; 2015 2018; mobile lidar; lidar ... See more keywords
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Reconstruction of turbulent flow fields from lidar measurements using large-eddy simulation

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Published in 2020 at "Journal of Fluid Mechanics"

DOI: 10.1017/jfm.2020.805

Abstract: Abstract We investigate the reconstruction of a turbulent flow field in the atmospheric boundary layer from a time series of lidar measurements, using large-eddy simulations (LES) and a four-dimensional variational data assimilation algorithm. This leads… read more here.

Keywords: reconstruction; reconstruction turbulent; using large; turbulent flow ... See more keywords
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Experimental validation of D parameter model for droplet sizing using off-axis lidar measurements.

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Published in 2019 at "Applied optics"

DOI: 10.1364/ao.58.006949

Abstract: Information about the size distribution of liquid droplets in a fog can be retrieved by measuring the backscattering lidar depolarization parameter D in circular polarization. Using a polarimetric off-axis lidar, measurements at different backscattering angles… read more here.

Keywords: lidar measurements; parameter; droplet; axis lidar ... See more keywords
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Classification of lidar measurements using supervised and unsupervised machine learning methods

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Published in 2021 at "Atmospheric Measurement Techniques"

DOI: 10.5194/amt-14-391-2021

Abstract: Abstract. While it is relatively straightforward to automate the processing of lidar signals, it is more difficult to choose periods of "good" measurements to process. Groups use various ad hoc procedures involving either very simple… read more here.

Keywords: lidar measurements; lidar; machine; measurements using ... See more keywords