International Workshop on Lidar Multiple Scattering Experiments最新文献

Light scattering by nonspherical particles: some theoretical aspects 非球形粒子的光散射:一些理论方面

International Workshop on Lidar Multiple Scattering Experiments Pub Date : 2005-03-17 DOI: 10.1117/12.617257

V. Farafonov, V. Ilin

引用次数: 5

Influence of the inhomogeneity properties on the depolarization of multiply scattered light in a turbid medium 不均匀性对混浊介质中多次散射光去极化的影响

International Workshop on Lidar Multiple Scattering Experiments Pub Date : 2005-03-17 DOI: 10.1117/12.617185

E. Gorodnichev, A. I. Kuzovlev, D. B. Rogozkin

引用次数: 2

Lidar depolarization asymmetry measurements and its relation with the optical depth 激光雷达退偏振不对称测量及其与光深的关系

International Workshop on Lidar Multiple Scattering Experiments Pub Date : 2005-03-17 DOI: 10.1117/12.617469

N. Roy, G. Roy, L. Bissonnette, J. Simard

{"title":"Lidar depolarization asymmetry measurements and its relation with the optical depth","authors":"N. Roy, G. Roy, L. Bissonnette, J. Simard","doi":"10.1117/12.617469","DOIUrl":"https://doi.org/10.1117/12.617469","url":null,"abstract":"We measure the cross-polarized backscattered light from a linearly polarized laser beam penetrating a cloud made of spherical particles with a gated intensified CCD camera. In accordance with previously published results, we observe a clear azimuthal pattern in the recorded images. We show that the pattern originates from second order scattering, and that higher-order scattering causes blurring that increases with optical depth. We also find that the contrast of the symmetrical features can be related to the measure of the optical depth. Moreover, by identifying and subtracting the blurring contributions, the resulting pattern provides a \"pure\" second-order scattering measurement that can be used for the retrieval of droplet size. We apply this technique on a stratus cloud located at 1400 m. The extinction values retrieved on the basis of the laboratory quantification of the blurring of the multiple scattering secondary polarization patterns measured from the ICCD images are then compared with the profile of the extinction coefficient obtained using Bissonnette's algorithm, which is based on the multiple-field-of-view (MFOV) lidar returns.","PeriodicalId":359097,"journal":{"name":"International Workshop on Lidar Multiple Scattering Experiments","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123473422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

On Monte Carlo for nonspherical and chiral particles 关于非球形和手性粒子的蒙特卡罗

International Workshop on Lidar Multiple Scattering Experiments Pub Date : 2005-03-17 DOI: 10.1117/12.617449

P. Bruscaglioni, S. Del Bianco, F. Martelli, G. Zaccanti, G. Bazzini, M. Gai, A. Ismaelli

引用次数: 0

Inverse problems of state parameters assessment for natural formations using satellite and ground-based observations 基于卫星和地面观测的自然地层状态参数反演问题

International Workshop on Lidar Multiple Scattering Experiments Pub Date : 2005-03-17 DOI: 10.1117/12.617391

V. V. Kozoderov

{"title":"Inverse problems of state parameters assessment for natural formations using satellite and ground-based observations","authors":"V. V. Kozoderov","doi":"10.1117/12.617391","DOIUrl":"https://doi.org/10.1117/12.617391","url":null,"abstract":"Models of remote sensing (RS) and ground-based (GB) data formation are considered together with numerical/computational (NC) modeling for climate and biosphere research. Multispectral RS imagery processing, GB data mapping representation and a testing stage for specified NC experimentation are analyzed in conjunction with modeling procedures of temporal data series analysis for the RS/GB information products and for the NC outputs. Integrated assessment models are the final stage of the relevant (RS, GB, NC) applications. Models of interpretation of multispectral images in visual, infrared and microwave spectral bands are initial to solve the inverse problems of quantitative parameters assessment (the biomass amount, in particular, for forest and other ecosystems). Each pixel of the images under processing are represented in terms of the listed parameters retrieved from space in accordance with the proposed mathematical procedures. These parameters are invariant (not depending on) to angular coordinates of the related targets observation, Sun illumination conditions and the current state of the atmosphere. Basic principles of ecosystems management are derived from the outlined stages of monitoring and modeling.","PeriodicalId":359097,"journal":{"name":"International Workshop on Lidar Multiple Scattering Experiments","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129819027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Backscattering patterns in the polarized lidar sounding of strongly scattering media 强散射介质偏振激光雷达探测中的后向散射模式

International Workshop on Lidar Multiple Scattering Experiments Pub Date : 2005-03-17 DOI: 10.1117/12.617515

L. Chaikovskaya, E. Zege

{"title":"Backscattering patterns in the polarized lidar sounding of strongly scattering media","authors":"L. Chaikovskaya, E. Zege","doi":"10.1117/12.617515","DOIUrl":"https://doi.org/10.1117/12.617515","url":null,"abstract":"Theory of polarized lidar sounding of multiply scattering media with highly anisotropic phase functions which describes angular patterns with representative azimuth structure of the backscattered signal observed through the polarizer and analyzer is proposed. Such patterns were visualized by other investigators in the plane perpendicular to the receiver optical axis in experiments performed on the base of mono-static polarized lidar systems. Previously obtained approximate equations of the vector theory along with generalized approximations earlier developed in the scalar theory form the basis for our theory. Solution expressed through multidimensional integrals which determine return polarization parameters is presented and explained. It accounts for formation of a signal as a process consisting of single scattering events into the backward region and propagation and small-angle scattering into near-forward directions before and after the back-scattering events. The developed solution gives the return angular pattern for any initial and received states of polarization and includes the multiple scattering. Half-analytical fast techniques that have been developed on the base of the obtained solution are used to simulate the near-backscattering patterns. Computed examples of the patterns for the case of scattering in seawaters are shown and discussed.","PeriodicalId":359097,"journal":{"name":"International Workshop on Lidar Multiple Scattering Experiments","volume":"54 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113933571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Lidar method of oil pollution detection on the rough sea surface 粗糙海面油污检测的激光雷达方法

International Workshop on Lidar Multiple Scattering Experiments Pub Date : 2005-03-17 DOI: 10.1117/12.617521

V. I. Kozintsev, M. L. Belov, V. Gorodnichev, O. A. Smirnova, Y. Fedotov, A. M. Khroustaleva

引用次数: 3

Analytical approximation for multiple Raman-Mie scattering 多重拉曼-米散射的解析近似

International Workshop on Lidar Multiple Scattering Experiments Pub Date : 2005-03-17 DOI: 10.1117/12.617485

M. Kleiman, I. Gurwich, A. Cohen

引用次数: 0

Estimation of microphysical parameters of oriented plate crystals on characteristics of reflected optical radiation 基于反射光辐射特性的定向板晶体微物理参数估算

International Workshop on Lidar Multiple Scattering Experiments Pub Date : 2005-03-17 DOI: 10.1117/12.617439

O. Shefer

引用次数: 0

Retrieval of particle size of C1 clouds using a bistatic lidar 利用双基地激光雷达反演C1云的粒径

International Workshop on Lidar Multiple Scattering Experiments Pub Date : 2005-03-17 DOI: 10.1117/12.617506

A. Y. Cheng, G. Czerwinski

引用次数: 0