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  • 1
    Keywords: Atmospheric science. ; Measurement. ; Measuring instruments. ; Geographic information systems. ; Lasers. ; Outer space Exploration. ; Astronautics. ; Atmospheric Science. ; Measurement Science and Instrumentation. ; Geographical Information System. ; Laser. ; Space Exploration and Astronautics.
    Description / Table of Contents: Chapter 1. Rotational Raman scattering through narrow-band interference filters: investigating uncertainties using a new Rayleigh scattering code developed within ACTRIS -- Chapter 2. Performance of Low-Cost, Diode-Based HSRL System with Simplified Optical Setup -- Chapter 3. Sensitivity Study on the Performance of the Single Calculus Chain Aerosol Layering Module -- Chapter 4. Particle Complex Refractive Index From 3+2 HSRL/Raman Lidar Measurements: Conditions of Accurate Retrieval, Uncertainties and Constraints Provided by Information About RH -- Chapter 5. Field Testing of a Diode-Laser-Based Micro Pulse Differential Absorption Lidar System to Measure Atmospheric Thermodynamic Variables -- Chapter 6. SEMICONDUCTOR LIDAR FOR QUANTITATIVE ATMOSPHERIC PROFILING -- Chapter 7. Atomic Barium Vapor Filter for Ultraviolet High Spectral Resolution Lidar -- Chapter 8. Future Lidars for Cutting-Edge Sciences in Ionosphere-Thermosphere-Mesosphere-Stratosphere Physics and Space-Atmosphere Coupling -- Chapter 9. Polarization Lidar for Monitoring Dust Particle Orientation: First Measurements -- Chapter 10. Dust flow distribution measurement by low coherence Doppler lidar -- Chapter 11. A Multi-wavelength LED lidar for near ground atmospheric monitoring -- Chapter 12. Development of low-cost high-spectral-resolution lidar using compact multimode laser for air quality measurement -- Chapter 13. Deep Learning Based Convective Boundary Layer Determination for Aerosol and Wind Profiles observed by Wind Lidar -- Chapter 14. LITES: Laboratory Investigations of Atmospheric Aerosol Composition by Raman-Scattering and Fluorescence Spectra -- Chapter 15. Performance Simulation of a Raman Lidar for the Retrieval of CO2 Atmospheric Profiles -- Chapter 16. ALL FIBER FREE-RUNNING DUAL-COMB RANGING SYSTEM -- Chapter 17. gPCE Uncertainty Quantication Modeling of LiDAR for Bathymetric and Earth Science Applications -- Chapter 18. When can Poisson random variables be approximated as Gaussian? -- Chapter 19. Enhancing the Performance of the MicroPulse DIAL through Poisson Total Variation Signal Processing -- Chapter 20. Development of Micro Pulse Lidar Network (MPLNET) Level 3 Satellite Validation Products in Advance of the EarthCARE Mission -- Chapter 21. 3D Point Cloud Classification using Drone-based Scanning LIDAR and Signal Diversity -- Chapter 22. Design and Validation of an Elastic Lidar Simulator for Testing Potential New Systems for Aerosol Typing -- Chapter 23. Performance of Pulsed Wind Lidar Based on Optical Hybrid -- Chapter 24. Demonstrating Capabilities of Multiple-Beam Airborne Doppler Lidar Using a LES-based Simulator -- Chapter 25. All-Solid State Iron Resonance Lidar for Measurement of Temperature and Winds in the Upper Mesosphere and Lower Thermosphere -- Chapter 26. Improved Remote Operation Capabilities for the NASA GSFC Tropospheric Ozone Lidar for Routine Ozone Profiling for Satellite Evaluation -- Chapter 27. A wind, temperature, H2O and CO2 scanning lidar mobile observatory for a 3D thermodynamic view of the atmosphere -- Chapter 28. Low-Cost and Lightweight Hyperspectral Lidar for Mapping Vegetation Fluorescence -- Chapter 29. SO2 Plumes Observation with LMOL: Theory, Modeling, and Validation -- Chapter 30. Possible Use of Iodine Absorption/Fluorescence Cell in High-Spectral-Resolution Lidar -- Chapter 31. Ten Years of Interdisciplinary Lidar Applications at SCNU, Guangzhou -- Chapter 32. Feasibility studies of the dual-polarization imaging lidar based on the division-of-focal-plane scheme for atmospheric remote sensing -- Chapter 33. An Algorithm to Retrieve Aerosol Optical Properties from ATLID and MSI Measurements -- Chapter 34. Observation of Polar Stratospheric Clouds at Dome C, Antarctica -- Chapter 35. Laboratory Evaluation of the Lidar Particle Depolarization Ratio (PDR) of Sulfates, Soot, and Mineral Dust at 180.0° Lidar Backscattering Angle -- Chapter 36. Fresh biomass burning aerosol observed in Potenza with multiwavelength Raman Lidar and sun-photometer -- Chapter 37. Aerosol Studies with Spectrometric Fluorescence and Raman Lidar -- Chapter 38. Continuous Observations of Aerosol-Weather Relationship from a Horizontal Lidar to Simulate Monitoring of Radioactive Dust in Fukashima, Japan -- Chapter 39. Statistical Simulation of Laser Pulse Propagation through Cirrus-cloudy Atmosphere -- Chapter 40. Aerosol Spatial Distribution Observed by a Mobile Vehicle Lidar with Optics for Near Range Detection -- Chapter 41. Cloud Base Height Correlation between a Co-located Micro-Pulse Lidar and a Lufft CHM15k Ceilometer -- Chapter 42. Comparison of Local and Transregional Atmospheric Particles Over the Urmia Lake in Northwest Iran, Using a Polarization Lidar Recordings -- Chapter 43. Properties of Polar Stratospheric Clouds over the European Arctic from Ground-Based Lidar -- Chapter 44. Two decades analysis of cirrus cloud radiative effects by lidar observations in the frame of NASA MPLNET lidar network -- Chapter 45. Temporal Variability of the Aerosol Properties Using a Cimel Sun/Lunar Photometer over Thessaloniki, Greece: Synergy With the Upgraded THELISYS Lidar System -- Chapter 46. Long-Term Changes of Optical Properties of Mineral Dust and Its Mixtures Derived from Raman Polariza-tion Water Vapor Lidar in Central Europe -- Chapter 47. Planetary Boundary Layer Height Measurements Using MicroPulse DIAL -- Chapter 48. Performance Modeling of a Diode-Laser-Based Direct Detection Doppler Lidar -- Chapter 49. Observation of Water Vapor Profiles by Raman Lidar with 266 nm laser in Tokyo -- Chapter 50. A 355-NM DIRECT-DETECTION DOPPLER WIND LIDAR FOR VERTICAL ATMOSPHERIC MOTION -- Chapter 51. Aircraft Wake Vortex Recognition and Classification Based on Coherent Doppler Lidar and Convolutional Neural Networks -- Chapter 52. MicroPulse Differential Absorption Lidar for Temperature Retrieval in the Lower Troposphere -- Chapter 53. Long Term Calibration of a Pure Rotational Raman Lidar for Temperature Measurements Using Radiosondes and Solar Background -- Chapter 54. Powerful Raman-Lidar for water vapor in the free troposphere and lower stratosphere as well as temperature in the stratosphere and mesosphere -- Chapter 55. Observation of Rainfall Velocity and Raindrop Size Using Power Spectrum of Coherent Doppler Lidar -- Chapter 56. Comparison of Lower Tropospheric Water Vapor Vertical Distribution Measured with Raman lidar and DIAL and Their Impact of Data Assimilation in Numerical Weather Prediction Model -- Chapter 57. Temperature Variations in the Middle Atmosphere Studied with Rayleigh Lidar at Haikou (19.9°N, 110.3°E) -- Chapter 58. Convective boundary layer sensible and latent heat flux lidar observations and towards new model parametrizations -- Chapter 59. Observation of Structure of Marine Atmospheric Boundary Layer by Ceilometer over the Kuroshio Current.-Chapter 60. ABL Height Different Estimation by Lidar in the Frame of HyMeX SOP1 Campaign -- Chapter 61. Temporal Evolution of Wavelength and Orientation of Atmospheric Canopy Waves -- Chapter 62. Assessment of Planetary Boundary Layer Height Variations over a Mountain Region in Western Himalayas -- Chapter 63. Analysis of Updraft Characteristics from an Airborne Micro-Pulsed Doppler Lidar During FIREX-AQ -- Chapter 64. Diurnal Variability of MLH and Ozone in NYC Urban and Coastal Area from an Integrated Observation during LISTOS 2018 -- Chapter 65. Boundary Layer Dynamics, Aerosol Composition, and Air Quality in the Urban Background of Stuttgart in Winter -- Chapter 66. DIAL Ozone Measurement Capability Added to NASA’s HSRL-2 Instrument Demonstrates Troposheric Ozone Variability Over Houston Area -- Chapter 67. Trajectory Analysis of CO2 Concentration Increase Events in the Nocturnal Atmospheric Boundary Layer Observed by the Differential Absorption Lidar -- Chapter 68. Efficiency Assessment of Single Cell Raman Gas Mixture for DIAL Ozone Lidar -- Chapter 69. COmpact RamaN lidar for Atmospheric CO2 and ThERmodyNamic ProfilING - CONCERNING -- Chapter 70. Characterization of Recent Aerosol Events Occurring in the Subtropical North Atlantic Region Using a CIMEL CE376 GPN Micro-LiDAR -- Chapter 71. Tropospheric Ozone Differential Absorption Lidar (DIAL) Development at New York City -- Chapter 72. Accounting for the polarizing effects introduced from non ideal quarter-wave plates in lidar measurements of the circular depolarization ratio -- Chapter 73. Investigating the geometrical and optical properties of the persistent stratospheric aerosol layer observed over Thessaloniki, Greece during 2019 -- Chapter 74. New Lidar Data Processing Techniques for Improving the Detection Range and Accuracy of Atmospheric Gravity Wave Measurements -- Chapter 75. Extending the Useful Range of Fluorescence LIDAR Data by Applying the Layered Binning Technique -- Chapter 76. Interaction between sea wave and surface atmosphere by shallow angle LED lidar -- Chapter 77. First results of the COLOR (CDOM-proxy retrieval from aeOLus ObseRvations) project -- Chapter 78. Dual wavelength heterodyne LDA for velocity and size distribution measurements in ocean water flows -- Chapter 79. Mitigation Strategy for the Impact of Low Energy Laser Pulses in CALIOP Calibration and Level 2 Retrievals -- Chapter 80. Introducing the Cloud Aerosol Lidar for Global Scale Observations of the Ocean-Land-Atmosphere System – CALIGOLA -- Chapter 81. An Overview of the NASA Atmosphere Observing System Inclined Mission (AOS-I) and the Role of Backscatter Lidar -- Chapter 82. Proposal for the Space-borne Integrated Path Differential Absorption (IPDA) Lidar for Lower Tropospheric Water Vapor Observations -- Chapter 83. Assimilation of Aerosol Observations from the Future Spaceborne Lidar Onboard the AOS Mission into the MOCAGE Chemistry-Transport Model -- Chapter 84. Aerosol Optical Properties over Western Himalayas Region by Raman Lidar during the December 2019 Annular Solar Eclipse -- Chapte.
    Abstract: This volume presents papers from the biennial International Laser Radar Conference (ILRC), the world’s leading event in the field of atmospheric research using lidar. With growing environmental concerns to address such as air quality deterioration, stratospheric ozone depletion, extreme weather events, and changing climate, the lidar technique has never been as critical as it is today to monitor, alert, and help solve current and emerging problems of this century. The 30th occurrence of the ILRC unveils many of the newest results and discoveries in atmospheric science and laser remote sensing technology. The 30th ILRC conference program included all contemporary ILRC themes, leveraging on both the past events’ legacy and the latest advances in lidar technologies and scientific discoveries, with participation by young scientists particularly encouraged. This proceedings volume includes a compilation of cutting-edge research on the following themes: new lidar techniques and methodologies; measurement of clouds and aerosol properties; atmospheric temperature, wind, turbulence, and waves; atmospheric boundary layer processes and their role in air quality and climate; greenhouse gases, tracers, and transport in the free troposphere and above; the upper mesosphere and lower thermosphere; synergistic use of multiple instruments and techniques, networks and campaigns; model validation and data assimilation using lidar measurements; space-borne lidar missions, instruments and science; ocean lidar instrumentation, techniques, and retrievals; and past, present and future synergy of heterodyne and direct detection lidar applications. In addition, special sessions celebrated 50 years of lidar atmospheric observations since the first ILRC, comprising review talks followed by a plenary discussion on anticipated future directions.
    Type of Medium: Online Resource
    Pages: XXIV, 892 p. 374 illus., 352 illus. in color. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9783031378188
    Series Statement: Springer Atmospheric Sciences,
    DDC: 551.5
    Language: English
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    Publication Date: 2014-06-15
    Print ISSN: 0946-2171
    Electronic ISSN: 1432-0649
    Topics: Physics
    Published by Springer
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    Publication Date: 2016-09-01
    Description: Rainfall velocity, raindrop size distribution (DSD), and vertical wind velocity were simultaneously observed with 2.05- and 1.54-μm coherent Doppler lidars during convective and stratiform rain events. A retrieval method is based on identifying two separate spectra from the convolution of the aerosol and precipitation Doppler lidar spectra. The vertical wind velocity was retrieved from the aerosol spectrum peak and then the terminal rainfall velocity corrected by the vertical air motion from the precipitation spectrum peak was obtained. The DSD was derived from the precipitation spectrum using the relationship between the raindrop size and the terminal rainfall velocity. A comparison of the 1-min-averaged rainfall velocity from Doppler lidar measurements at a minimum range and that from a collocated ground-based optical disdrometer revealed high correlation coefficients of over 0.89 for both convective and stratiform rain events. The 1-min-averaged DSDs retrieved from the Doppler lidar spectrum using parametric and nonparametric methods are also in good agreement with those measured with the optical disdrometer with a correlation coefficient of over 0.80 for all rain events. To retrieve the DSD, the parametric method assumes a mathematical function for the DSD and the nonparametric method computes the direct deconvolution of the measured Doppler lidar spectrum without assuming a DSD function. It is confirmed that the Doppler lidar can retrieve the rainfall velocity and DSD during relatively heavy rain, whereas the ratio of valid data significantly decreases in light rain events because it is extremely difficult to separate the overlapping rain and aerosol peaks in the Doppler spectrum.
    Print ISSN: 0739-0572
    Electronic ISSN: 1520-0426
    Topics: Geography , Geosciences , Physics
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    Publication Date: 2009-03-07
    Print ISSN: 0006-8314
    Electronic ISSN: 1573-1472
    Topics: Geosciences , Physics
    Published by Springer
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    Publication Date: 2013-03-01
    Description: A coherent 2-μm differential absorption and wind lidar (Co2DiaWiL) has been built with a high-power Q-switched Tm,Hm:YLF laser to measure CO2 concentration and radial wind speed. The performance of the Co2DiaWiL is described and analyzed, with a view to demonstrating system capabilities for remote measurements of wind velocities in the atmospheric boundary layer and free troposphere. Bias in the velocity measurements was estimated at −0.0069 m s−1 using measurements from a stationary hard target. The Co2DiaWiL achieved a velocity precision of 0.12 m s−1, derived from the magnitude of random error in radial wind velocity measurements. These measurements were made for ranges out to 20–25 km by using a horizontally fixed beam mode for average times of 1 min. Quantitative intercomparisons of 1-min averages between the Co2DiaWiL and a sonic anemometer revealed a correlation coefficient of 0.99. This study demonstrated measurements of horizontal wind profiles, by making radial wind velocity measurements with the Co2DiaWiL using conical scanning. Profile differences at higher levels could be attributed to probable large horizontal separations of the radiosondes and the low signal-to-noise ratio of the Co2DiaWiL. A pseudo-dual-Doppler technique was developed to retrieve horizontal wind components with a single-Doppler lidar and a steering mirror. Intercomparisons of the 1-min-averaged u and υ components from the pseudo-dual-Doppler lidar measurements with those from the sonic anemometer revealed correlation coefficients of 0.84 and 0.83, respectively.
    Print ISSN: 0739-0572
    Electronic ISSN: 1520-0426
    Topics: Geography , Geosciences , Physics
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    Publication Date: 2014-12-01
    Description: The authors evaluated the effects of assimilating three-dimensional Doppler wind lidar (DWL) data on the forecast of the heavy rainfall event of 5 July 2010 in Japan, produced by an isolated mesoscale convective system (MCS) at a meso-gamma scale in a system consisting of only warm rain clouds. Several impact experiments using the nonhydrostatic four-dimensional variational data assimilation system (NHM-4DVAR) and the Japan Meteorological Agency nonhydrostatic model with a 2-km horizontal grid spacing were conducted in which 1) no observations were assimilated (NODA), 2) radar reflectivity and radial velocity determined by Doppler radar and precipitable water vapor determined by GPS satellite observations were assimilated (CTL), and 3) radial velocity determined by DWL were added to the CTL experiment (LDR) and five data denial and two observational error sensitivity experiments. Although both NODA and CTL simulated an MCS, only LDR captured the intensity, location, and horizontal scale of the observed MCS. Assimilating DWL data improved the wind direction and speed of low-level airflows, thus improving the accuracy of the simulated water vapor flux. The examination of the impacts of specific assimilations and assigned observation errors showed that assimilation of all data types is important for forecasting intense MCSs. The investigation of the MCS structure showed that large amounts of water vapor were supplied to the rainfall event by southerly flow. A midlevel inversion layer led to the production of exclusively liquid water particles in the MCS, and in combination with the humid airflow into the MCS, this inversion layer may be another important factor in its development.
    Print ISSN: 0027-0644
    Electronic ISSN: 1520-0493
    Topics: Geography , Geosciences , Physics
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    Publication Date: 2015-05-01
    Description: Horizontal convective rolls form in coastal areas around Sendai Airport during sea-breeze events. Using a building-resolving computational fluid dynamics model nested in an advanced forecast system with a data assimilation scheme, the authors perform a series of sensitivity experiments to investigate the impacts of land use and buildings on these rolls. The results show that the roll positions, intensities, and structures are significantly affected by variations in land use and the presence of buildings. Land-use heterogeneity is responsible for generating rolls with evident regional features. Major rolls tend to develop downwind of warm surfaces, and they dominate over neighboring rolls; thus, a heterogeneity-scale mode is imposed on the inherent roll wavelength. The roll’s rapid growth is attributable to warm surfaces that initiate a strong coupling among turbulent thermals, convective updrafts, pressure perturbations, and secondary flows in sea breezes. The heterogeneity-induced features differ considerably from the nearly homogeneous features that form over uniform surfaces. Additionally, the wake flow behind buildings helps organize near-surface warm air into streamwise bands that drive streaky ejections. The building-induced turbulence acts to modify secondary flows and displace roll updrafts toward building wakes. Such effects are most effective over villages with scattered houses that are aligned with the ambient wind. Building signatures are elongated in downwind open areas due to sustained secondary circulations. An analysis of turbulent kinetic energy shows that both land use and buildings regulate energy generation and transport, resulting in a clear response in roll growth. Thus, including complex surfaces in forecast models helps determine detailed characteristics and structures of roll convection over coastal regions.
    Print ISSN: 0027-0644
    Electronic ISSN: 1520-0493
    Topics: Geography , Geosciences , Physics
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    Publication Date: 2015-05-01
    Description: Horizontal convective rolls (HCRs) that develop in sea breezes greatly influence local weather in coastal areas. In this study, the authors present a realistic simulation of sea-breeze HCRs over an urban-scale area at a resolution of a few meters. An advanced Down-Scaling Simulation System (DS3) is built to derive the analyzed data using a nonhydrostatic model and data assimilation scheme that drive a building-resolving computational fluid dynamics (CFD) model. The mesoscale-analyzed data well capture the inland penetration of the sea breeze in northeastern Japan. The CFD model reproduces the HCRs over Sendai Airport in terms of their coastal initiation, inland growth, streamwise orientation, specific locations, roll wavelength, secondary flows, and regional differences due to complex surfaces. The simulated HCRs agree fairly well with those observed by dual-Doppler lidar and heliborne sensors. Both the simulation and observation analyses suggest that roll updrafts typically originate in the narrow bands of low-speed streaks and warm air near the ground. The HCRs are primarily driven and sustained by a combination of wind shear and buoyancy forces within the slightly unstable sea-breeze layer. In contrast, the experiment without data assimilation exhibits a higher deficiency in the reproduction of roll characteristics. The findings highlight that CFD modeling, given reliable mesoscale weather and surface conditions, aids in high-precision forecasting of HCRs at unprecedented high resolutions, which may help determine the roll structure, dynamics, and impacts on local weather.
    Print ISSN: 0027-0644
    Electronic ISSN: 1520-0493
    Topics: Geography , Geosciences , Physics
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