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Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques最新文献

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Large Aperture Measurements of Optical Turbulence 光学湍流的大孔径测量
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.tuc12
D. M. Winker
{"title":"Large Aperture Measurements of Optical Turbulence","authors":"D. M. Winker","doi":"10.1364/lors.1987.tuc12","DOIUrl":"https://doi.org/10.1364/lors.1987.tuc12","url":null,"abstract":"There exists a significant body of literature, developed over the last 10 years or so, concerned with the theoretical analysis of atmospherically induced wavefront aberrations in terms of Zernike polynomial decompositions and power spectra of the Zernike modes (1-4). To date there has not been a satisfactory experimental verification of these analyses.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114981177","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
A Simple Optical Method of Simultaneous Measurement of Characteristic Scales and Intensity of Atmospheric Turbulence 一种同时测量大气湍流特征尺度和强度的简单光学方法
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.tuc2
A. Zhukov, V. Nosov
{"title":"A Simple Optical Method of Simultaneous Measurement of Characteristic Scales and Intensity of Atmospheric Turbulence","authors":"A. Zhukov, V. Nosov","doi":"10.1364/lors.1987.tuc2","DOIUrl":"https://doi.org/10.1364/lors.1987.tuc2","url":null,"abstract":"For solving a large number of problems on optical radiation propagation in the atmosphere the atmospheric turbulent characteristics should be determined. There are the inner l\u0000 0\u0000 and outer L\u0000 0\u0000 scales of turbulence, structural characteristics of fluctuations of the refractive index \u0000 \u0000 \u0000 \u0000 C\u0000 n\u0000 2\u0000 \u0000 \u0000 \u0000 . The value of \u0000 \u0000 \u0000 \u0000 C\u0000 n\u0000 2\u0000 \u0000 \u0000 \u0000 determines the turbulence intensity. All these characteristics are the parameters in the spatial spectral density φ\u0000 n\u0000 (x). The function is given as [1,2] where x\u0000 m\u0000 =5,92/l0, x\u0000 0\u0000 =2π/L\u0000 0\u0000 . In the inertial subrange (x\u0000 0\u0000 ≤ x ≤ x\u0000 m\u0000 ) the model (1) coincides with the Kolmogorov spectrum of turbulence.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122707914","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
A Differential Absorption Lidar System for Measurements of Tropospheric NO, NO2, SO2 and O3 测量对流层NO, NO2, SO2和O3的差分吸收激光雷达系统
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.mb3
B. W. Jolliffe, E. Michelson, N. Swann, P. Woods
{"title":"A Differential Absorption Lidar System for Measurements of Tropospheric NO, NO2, SO2 and O3","authors":"B. W. Jolliffe, E. Michelson, N. Swann, P. Woods","doi":"10.1364/lors.1987.mb3","DOIUrl":"https://doi.org/10.1364/lors.1987.mb3","url":null,"abstract":"A differential-absorption lidar facility has been developed by the National Physical Laboratory and mounted in a custom-built vehicle. It is now being deployed in a range of field measurement exercises. The facility operates in either a mobile or a stationary scanning mode. It is presently capable of range-resolved measurements of the atmospheric concentrations of NO, NO2, SO2 and O3 in the troposphere in the visible and ultraviolet regions of the spectrum. The system can be configured to monitor up to three species near-simultaneously and is currently being extended so that it can be operated in the infrared.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128009083","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
A Compact Wide-Field Sensor for Remote Sensing of Ocean Phenomena 一种用于海洋现象遥感的小型宽视场传感器
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.tuc13
T. Pagano, L. Woody
{"title":"A Compact Wide-Field Sensor for Remote Sensing of Ocean Phenomena","authors":"T. Pagano, L. Woody","doi":"10.1364/lors.1987.tuc13","DOIUrl":"https://doi.org/10.1364/lors.1987.tuc13","url":null,"abstract":"A low-cost, high-performance sensor design for low-earth-orbit ocean-color remote sensing is presented with system tradeoffs and performance estimates.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114698586","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
Sodium Lidar Measurements of the Seasonal and Nocturnal Variations of the Gravity Wave Vertical Wavenumber Spectrum 钠激光雷达测量重力波垂直波数频谱的季节和夜间变化
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.mc15
D. Senft, C. Gardner, Chao-Han Liu
{"title":"Sodium Lidar Measurements of the Seasonal and Nocturnal Variations of the Gravity Wave Vertical Wavenumber Spectrum","authors":"D. Senft, C. Gardner, Chao-Han Liu","doi":"10.1364/lors.1987.mc15","DOIUrl":"https://doi.org/10.1364/lors.1987.mc15","url":null,"abstract":"A method for computing the gravity wave vertical wavenumber spectrum and rms wind velocity from the data obtained by a sodium lidar system is described. The spectral slope and rms wind velocity temporal and altitude variations are determined.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"2002 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131112062","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
An Airborne Polarization Lidar for Sounding Clouds and Underlying Surface 用于探测云层和下垫面的机载偏振激光雷达
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.wc1
A. Abramochkin, V. V. Burkov, V. Zuev, I. V. Samokhvalov, V.I. Shamanaev
{"title":"An Airborne Polarization Lidar for Sounding Clouds and Underlying Surface","authors":"A. Abramochkin, V. V. Burkov, V. Zuev, I. V. Samokhvalov, V.I. Shamanaev","doi":"10.1364/lors.1987.wc1","DOIUrl":"https://doi.org/10.1364/lors.1987.wc1","url":null,"abstract":"The information on the scattering coefficient of clouds and their phase state, as well as on the presence of oriented particles can be obtained, and the classification of an underlying surface can be made based on the analysis of lidar-return polarization.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133472416","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
A DIAL System for High Resolution Water Vapor Measurements in the Troposphere 对流层高分辨率水汽测量的刻度盘系统
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.mb2
J. Bösenberg
{"title":"A DIAL System for High Resolution Water Vapor Measurements in the Troposphere","authors":"J. Bösenberg","doi":"10.1364/lors.1987.mb2","DOIUrl":"https://doi.org/10.1364/lors.1987.mb2","url":null,"abstract":"Water vapor is a minor constituent of the atmosphere which is of great importance for many atmospheric processes. Rather small changes in concentration can strongly affect other parameters, e.g. the radiation budget by formation of clouds. In our institute the request for experimental data on water vapor originated from studies of organized convection, where the transport of water vapor and the associated condensation obviously is one of the key processes. From this we derived our definition of the term \"high resolution\", it is meant to be a spatial and temporal resolution sufficient for studies of at least medium scale convective processes, or in approximate numbers, 30 sec in time, 100 m in height, 5% accuracy within the mixed layer (about 1.5 km). The same system can be used for measurements up to greater heights. Temporal and spatial resolution are of course decreasing with height, but compared to conventional radiosonde measurements this resolution can still be considered \"high\" throughout the troposphere.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117098557","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
Simultaneous Measurements of Turbulence Level and Inner Scale Using Laser Scintillation 用激光闪烁同时测量湍流水平和内部尺度
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.tuc7
R. Frehlich
{"title":"Simultaneous Measurements of Turbulence Level and Inner Scale Using Laser Scintillation","authors":"R. Frehlich","doi":"10.1364/lors.1987.tuc7","DOIUrl":"https://doi.org/10.1364/lors.1987.tuc7","url":null,"abstract":"Laser propagation through the atmosphere produces random scintillation patterns. The statistics of these intensity fluctuations is determined by the refractive index spectrum of the atmosphere \u0000 \u0000 \u0000 \u0000 Φ\u0000 n\u0000 \u0000 \u0000 (\u0000 \u0000 \u0000 q\u0000 →\u0000 \u0000 \u0000 )\u0000 \u0000 \u0000 \u0000 where \u0000 \u0000 \u0000 \u0000 q\u0000 →\u0000 \u0000 \u0000 \u0000 denotes spatial wavenumber. Tatarskii proposed the following model for the turbulence spectrum1 where \u0000 \u0000 \u0000 \u0000 C\u0000 n\u0000 \u0000 \u0000 \u0000 2\u0000 \u0000 \u0000 \u0000 is a measure of the level of turbulence and l0 is proportional to the inner scale λ0(λ0=2.95l0). The inner scale is defined as the intercept of the two power law regions of the three dimensional structure function of refractive index fluctuations.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124074758","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
Oil Film Detection and Characterization by Lidar Fluorosensors 激光雷达荧光传感器的油膜检测与表征
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.mc19
G. Cecchi, L. Pantani, B. Radicati, A. Barbaro, P. Mazzinghi
{"title":"Oil Film Detection and Characterization by Lidar Fluorosensors","authors":"G. Cecchi, L. Pantani, B. Radicati, A. Barbaro, P. Mazzinghi","doi":"10.1364/lors.1987.mc19","DOIUrl":"https://doi.org/10.1364/lors.1987.mc19","url":null,"abstract":"The use of lidar fluorosensors in the detection of oil films over the water surface is well known and laboratory and field experiments were done by different authors in the past years. A systematic analysis of fluorosensor performances in detection and characterization of oil films was carried out as a part of the IROE program of environmental remote sensing. The investigation concerned the definition of the best laser wavelengths, the measurement of film thickness, the identification of the minimum detectable film thickness, the identification of the oil which composes the film. The results of this analysis were the base of the development of IROE FLIDAR-2 hardware and software.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126533907","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
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