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

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DIAL Measurements of Atmospheric Water Vapor, HCl, and CH4 Using a Continuously Tunable 1.7 μm Co:MgF2 Laser* 使用连续可调谐1.7 μm Co:MgF2激光器测量大气水蒸气，HCl和CH4 *
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1988-08-01 DOI: 10.1364/lors.1987.mb5
D. Killinger, N. Menyuk
{"title":"DIAL Measurements of Atmospheric Water Vapor, HCl, and CH4 Using a Continuously Tunable 1.7 μm Co:MgF2 Laser*","authors":"D. Killinger, N. Menyuk","doi":"10.1364/lors.1987.mb5","DOIUrl":"https://doi.org/10.1364/lors.1987.mb5","url":null,"abstract":"There is a need for the development of new, tunable high-power lasers in the near-to-middle IR to serve as sources in lidar systems for remote sensing of the atmosphere. We report on the development and use of a new solid-state, cobalt-doped magnesium fluoride laser (Co:MgF2), which is continuously tunable from 1.5 to 2.3 μm, and describe the use of this laser in a DIAL system to measure water vapor, HCl, and CH4 in the atmosphere. Both path-averaged and range-resolved DIAL measurements have been made at ranges up to 6 km and 3 km, respectively.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116612324","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
Detector Response Characterization for DIAL Application DIAL应用的探测器响应特性
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1988-08-01 DOI: 10.1364/lors.1987.wc10
H. S. Lee, G. Schwemmer, C. Korb
{"title":"Detector Response Characterization for DIAL Application","authors":"H. S. Lee, G. Schwemmer, C. Korb","doi":"10.1364/lors.1987.wc10","DOIUrl":"https://doi.org/10.1364/lors.1987.wc10","url":null,"abstract":"For accurate DIAL measurements, the detector output should have a linear response to the input light signal. In addition to good linearity, the detector should also have good gain stability and negligible signal-induced noise.\u0000 The requirement for gain stability is less stringent compared to the other requirements as long as the gain stability pattern is preserved between the pair of on-line and off-line pulses. The linearity of the detector response is critical in the sense that the nonlinear behavior of the PMT responsivity is normally dependent upon the signal amplitude itself. Therefore, for off line and on-line signals which are not identical, the effect of the non-linearity is not cancelled in the DIAL signal processing. The same argument applies for the signal-induced noise term. The cause and characteristics of the signal-induced noise which appears as a bias is not well understood.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131257506","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
Advanced Airborne DIAL System Capabilities for Ozone and Multiwavelength Aerosol Measurements 先进的机载拨号系统能力臭氧和多波长气溶胶测量
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1988-08-01 DOI: 10.1364/lors.1987.mc4
A. Carter, E. Browell, J. Siviter, N. S. Higdon, C. Butler, N. Mayo
{"title":"Advanced Airborne DIAL System Capabilities for Ozone and Multiwavelength Aerosol Measurements","authors":"A. Carter, E. Browell, J. Siviter, N. S. Higdon, C. Butler, N. Mayo","doi":"10.1364/lors.1987.mc4","DOIUrl":"https://doi.org/10.1364/lors.1987.mc4","url":null,"abstract":"The NASA Langley airborne DIAL system has been modified to give significantly increased measurement capability for conducting atmospheric science investigations. The major modification to the DIAL system was incorporating the capability to make ozone and aerosol measurements above and below the aircraft simultaneously. This was accomplished by a total redesign of the transmitting and receiving sections of the DIAL system to accommodate eight lidar returns simultaneously. Additional modifications were also made to remotely control transmitted laser beam properties and direction; to incorporate a new filtering system for high UV throughput and complete cutoff; and to increase real-time data availability for real-time mission decisions.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128840143","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
Electrooptic Phase Modulation Gas Correlation Spectroradiometry 电光相位调制气体相关光谱辐射测定法
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1988-08-01 DOI: 10.1364/lors.1987.tuc22
D. Rider, J. Schofield, D. Mccleese
{"title":"Electrooptic Phase Modulation Gas Correlation Spectroradiometry","authors":"D. Rider, J. Schofield, D. Mccleese","doi":"10.1364/lors.1987.tuc22","DOIUrl":"https://doi.org/10.1364/lors.1987.tuc22","url":null,"abstract":"Recent work[1] has demonstrated a new type of gas correlation spectroscopy where electrooptic phase modulation of a molecular spectrum together with selective absorption by a reference gas is used to quantify the abundance of a gas phase species selectively. The use of electrooptic phase modulation for gas correlation measurements is a significant enhancement of the gas correlation technique because it provides a means for remotely measuring winds as well as atmospheric species abundances and temperature in the stratosphere and mesosphere[2,3].","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115937508","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
Optimization of Lidar Boundary Layer Height Retrieval 激光雷达边界层高度反演的优化
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1988-08-01 DOI: 10.1364/lors.1987.mc7
S. Palm, J. Spinhirne
{"title":"Optimization of Lidar Boundary Layer Height Retrieval","authors":"S. Palm, J. Spinhirne","doi":"10.1364/lors.1987.mc7","DOIUrl":"https://doi.org/10.1364/lors.1987.mc7","url":null,"abstract":"A highly significant application for lidar sounding of the atmosphere is the retrieval of the height of the planetary boundary layer (PBL). The PBL height is an important factor in the transport of energy from the surface to the free troposphere and is directly related to the initiation and development of mesoscale events. Thus PBL height is a very useful input and validation parameter for Global Circulation Models. Currently there is no effective passive retrieval technique for PBL height. However the detection of PBL height from lidar aerosol scattering has been widely demonstrated. A primary consideration for lidar PBL height retrieval is the minimal detectability in terms of either atmospheric scattering structure or lidar system signal to noise sensitivity. Global measurements of PBL height from space borne lidar systems are envisioned. A primary consideration is how reliably PBL height may be detected for given lidar system parameters. The cost of a space borne system may be significantly reduced by minimizing telescope size and transmitted laser power.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121733628","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
Remote Sensing of N2O5 and C10NO2 in the Lower Stratosphere 平流层下层N2O5和C10NO2的遥感研究
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1988-08-01 DOI: 10.1364/lors.1987.tua4
J. Brasunas, J. Herman, V. Kunde, W. Maguire, L. Herath, W. Shaffer, S. Massie, A. Goldman
{"title":"Remote Sensing of N2O5 and C10NO2 in the Lower Stratosphere","authors":"J. Brasunas, J. Herman, V. Kunde, W. Maguire, L. Herath, W. Shaffer, S. Massie, A. Goldman","doi":"10.1364/lors.1987.tua4","DOIUrl":"https://doi.org/10.1364/lors.1987.tua4","url":null,"abstract":"The stratospheric ozone concentration depends on a combination of radiation, chemistry and dynamics. Central to the chemistry are the nitrogen, chlorine, and hydrogen cycles of catalytic ozone destruction. Verification of the photochemical models that attempt to predict ozone trends requires the simultaneous measurement of ozone, temperature, and the trace species which participate in the ozone destruction.1","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115309619","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
Remote Sensing of Earth and Planetary Atmospheres Using Gas Correlation Spectroradiometry 利用气体相关光谱辐射测量法遥感地球和行星大气
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1988-08-01 DOI: 10.1364/lors.1987.tua2
D. Mccleese
{"title":"Remote Sensing of Earth and Planetary Atmospheres Using Gas Correlation Spectroradiometry","authors":"D. Mccleese","doi":"10.1364/lors.1987.tua2","DOIUrl":"https://doi.org/10.1364/lors.1987.tua2","url":null,"abstract":"Gas correlation spectroradiometry is one of the most frequently used techniques for remote measurements of atmospheric properties. It is a relatively simple and robust technique which is most useful in applications where very high spectral discrimination (up to the line Doppler width) is required and yet signal levels are low. Such is the case for Earth upper atmospheric temperature and species abundance measurements and for numerous planetary measurement objectives. The first spaceborne gas correlation experiment (Abel et al 1970) was flown on Nimbus 4 by Oxford University to obtain global measurements of stratospheric temperature. Since the launch of that instrument in 1970, eight Earth orbital instruments and one planetary experiment have used this technique for a variety of atmospheric investigations. Gas correlation spectroradiometry continues to offer significant advantages over other instrumental approaches for investigations in which instrument capability and complexity are equally important considerations. For example, the atmospheric sounder now being developed at JPL for the Mars Observer planetary mission (McCleese et al 1986) uses gas correlation spectral channels to achieve a resolution of 0.01 cm–1 in the mid-infrared using hardware of minimum complexity and having substantial flight heritage.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121737326","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
Simultaneous Measurements of Ocean Surface Roughness and Atmospheric Pressure with a cm Resolution Two-Color Laser Altimeter 用厘米分辨率双色激光高度计同时测量海洋表面粗糙度和大气压力
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1988-08-01 DOI: 10.1364/lors.1987.tub4
J. Abshire, J. McGarry
{"title":"Simultaneous Measurements of Ocean Surface Roughness and Atmospheric Pressure with a cm Resolution Two-Color Laser Altimeter","authors":"J. Abshire, J. McGarry","doi":"10.1364/lors.1987.tub4","DOIUrl":"https://doi.org/10.1364/lors.1987.tub4","url":null,"abstract":"Gardner has proposed a technique for measuring both atmospheric pressure [1] and ocean surface roughness [2] by using a short pulse two-color laser altimeter. Two sets of airborne altimeter measurements have been performed using this technique, both of which utilized < 100 psec wide modelocked laser pulses. The impulse response of the initial PMT-based altimeter receiver was 800 psec [3], while that of the later streak camera-based receiver was 85 psec [4]. In the first airborne tests, the atmospheric pressure accuracies of the high resolution altimeter were 3-7 mbar [4].","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122595236","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
Cloud Liquid Water Derived from Lidar Observations 由激光雷达观测得出的云液态水
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1988-08-01 DOI: 10.1364/lors.1987.tub5
J. Spinhirne, W. Hart, R. Boers
{"title":"Cloud Liquid Water Derived from Lidar Observations","authors":"J. Spinhirne, W. Hart, R. Boers","doi":"10.1364/lors.1987.tub5","DOIUrl":"https://doi.org/10.1364/lors.1987.tub5","url":null,"abstract":"The distribution of liquid water at the top of clouds has an important relation to the radiative and dynamical interactions within clouds. As a significant example, the formation and structure of marine stratus clouds are maintained primarily by radiative cooling at the cloud top. Understanding the formation of marine stratus is important climatalogically since the cloud type has a significant global influence on the balance between reflected visible and emitted thermal radiation. Models have shown that the interaction between radiative cooling and the cloud development are largley a function of the distribution of the liquid water at the cloud top. Although liquid water may be obtained from in situ measurements, only one dimensional observations are possible. Lidar liquid water observatios can provide a more complete two dimentional representation of the liquid water structure of cloud tops. In this contribution we will describe the lidar retrieval of cloud top liquid water during an experiment in which marine stratus clouds were studied by combined remote sensing and in situ observations.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131954343","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
Dual Alexandrite Laser for Autonomous Lidar Applications 用于自主激光雷达的双翠绿宝石激光器
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1988-08-01 DOI: 10.1364/lors.1987.wa4
J. Degnan
{"title":"Dual Alexandrite Laser for Autonomous Lidar Applications","authors":"J. Degnan","doi":"10.1364/lors.1987.wa4","DOIUrl":"https://doi.org/10.1364/lors.1987.wa4","url":null,"abstract":"NASA's Lidar Atmospheric Sensing Experiment (LASE), a joint effort of the Langley Research Center and the Goddard Space Flight Center, is a first step toward the realization of the agency's goal of developing autonomous Differential Absorption Lidar (DIAL) instruments for future airborne and spaceborne remote sensing applications. The scientific goal of the first phase of the LASE program is to measure water vapor, aerosol, and cloud profiles from a high altitude ER-2 (extended range U-2) aircraft. The science motivation and overall system concept has been presented previously [1]. The present paper will discuss the design and performance characteristics of the Tunable Laser Subsystem (TLS) being developed at the Goddard Space Flight Center.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121237990","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
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