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Remote Measurements Of Tropospheric Aerosol Scattering Properties By An Airborne High Spectral Resolution Lidar
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Book Synopsis Remote Measurements of Tropospheric Aerosol Scattering Properties by an Airborne High Spectral Resolution Lidar by : Jeffery Thomas Sroga
Download or read book Remote Measurements of Tropospheric Aerosol Scattering Properties by an Airborne High Spectral Resolution Lidar written by Jeffery Thomas Sroga and published by . This book was released on 1985 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Remote Measurements of Tropospheric Aerosol Scattering Properties by an Airborne High Spectral Resolution Lidar by : Jeffery Thomas Sroga
Download or read book Remote Measurements of Tropospheric Aerosol Scattering Properties by an Airborne High Spectral Resolution Lidar written by Jeffery Thomas Sroga and published by . This book was released on 1983 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterizing Aerosol Distributions and Optical Properties Using the NASA Langley High Spectral Resolution Lidar by :
Download or read book Characterizing Aerosol Distributions and Optical Properties Using the NASA Langley High Spectral Resolution Lidar written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this project was to provide vertically and horizontally resolved data on aerosol optical properties to assess and ultimately improve how models represent these aerosol properties and their impacts on atmospheric radiation. The approach was to deploy the NASA Langley Airborne High Spectral Resolution Lidar (HSRL) and other synergistic remote sensors on DOE Atmospheric Science Research (ASR) sponsored airborne field campaigns and synergistic field campaigns sponsored by other agencies to remotely measure aerosol backscattering, extinction, and optical thickness profiles. Synergistic sensors included a nadir-viewing digital camera for context imagery, and, later in the project, the NASA Goddard Institute for Space Studies (GISS) Research Scanning Polarimeter (RSP). The information from the remote sensing instruments was used to map the horizontal and vertical distribution of aerosol properties and type. The retrieved lidar parameters include profiles of aerosol extinction, backscatter, depolarization, and optical depth. Products produced in subsequent analyses included aerosol mixed layer height, aerosol type, and the partition of aerosol optical depth by type. The lidar products provided vertical context for in situ and remote sensing measurements from other airborne and ground-based platforms employed in the field campaigns and was used to assess the predictions of transport models. Also, the measurements provide a data base for future evaluation of techniques to combine active (lidar) and passive (polarimeter) measurements in advanced retrieval schemes to remotely characterize aerosol microphysical properties. The project was initiated as a 3-year project starting 1 January 2005. It was later awarded continuation funding for another 3 years (i.e., through 31 December 2010) followed by a 1-year no-cost extension (through 31 December 2011). This project supported logistical and flight costs of the NASA sensors on a dedicated aircraft, the subsequent analysis and archival of the data, and the presentation of results in conferences, workshops, and publications. DOE ASR field campaigns supported under this project included - MAX-Mex /MILAGRO (2006) - TexAQS 2006/GoMACCS (2006) - CHAPS (2007) - RACORO (2009) - CARE/CalNex (2010) In addition, data acquired on HSRL airborne field campaigns sponsored by other agencies were used extensively to fulfill the science objectives of this project and the data acquired have been made available to other DOE ASR investigators upon request.
Book Synopsis Measuring Atmospheric Extinction and Backscatter with a High Spectral Resolution Lidar by : Edwin W. Eloranta
Download or read book Measuring Atmospheric Extinction and Backscatter with a High Spectral Resolution Lidar written by Edwin W. Eloranta and published by . This book was released on 1987 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: The University of Wisconsin High Spectral Resolution Lindar (HSRL) is designed to make unambiguous, remote measurements of extinction cross sections and backscatter phase functions. This investigation was planned to observe the dependence of aerosol scattering properties on relative humidity. A series of observations were performed. These data showed the expected increase of scattering cross section with increases in relative humidity. In addition the measurements showed that the backscatter phase function appeared to be constant while the total scattering cross section varied. This was a puzzling result. Mean particle size in an aerosol haze should increase with relative humidity; Mie scattering calculations predict that the backscatter phase function is a function of the mean size. A careful analysis of the measurement confidence limits indicated that we could not eliminate calibration uncertainties were unacceptable. At this point we changed the focus of our effort from measurements to instrument improvements.
Book Synopsis Remote Sensing of Aerosols, Clouds, and Precipitation by : Tanvir Islam
Download or read book Remote Sensing of Aerosols, Clouds, and Precipitation written by Tanvir Islam and published by Elsevier. This book was released on 2017-10-18 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote Sensing of Aerosols, Clouds, and Precipitation compiles recent advances in aerosol, cloud, and precipitation remote sensing from new satellite observations. The book examines a wide range of measurements from microwave (both active and passive), visible, and infrared portions of the spectrum. Contributors are experts conducting state-of-the-art research in atmospheric remote sensing using space, airborne, and ground-based datasets, focusing on supporting earth observation satellite missions for aerosol, cloud, and precipitation studies. A handy reference for scientists working in remote sensing, earth science, electromagnetics, climate physics, and space engineering. Valuable for operational forecasters, meteorologists, geospatial experts, modelers, and policymakers alike. - Presents new approaches in the field, along with further research opportunities, based on the latest satellite data - Focuses on how remote sensing systems can be designed/developed to solve outstanding problems in earth and atmospheric sciences - Edited by a dynamic team of editors with a mixture of highly skilled and qualified authors offering world-leading expertise in the field
Book Synopsis Measurement of Tropospheric Temperature and Aerosol Extinction Using High Spectral Resolution Lidar by : Raul John Alvarez
Download or read book Measurement of Tropospheric Temperature and Aerosol Extinction Using High Spectral Resolution Lidar written by Raul John Alvarez and published by . This book was released on 1991 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atmospheric Aerosols by : Guillaume A. D'Almeida
Download or read book Atmospheric Aerosols written by Guillaume A. D'Almeida and published by A. Deepak Publishing. This book was released on 1991 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Retrieval of Optical and Microphysical Properties of Aerosols from a Hybrid Multiwavelength Lidar Dataset by : Patricia Sawamura
Download or read book Retrieval of Optical and Microphysical Properties of Aerosols from a Hybrid Multiwavelength Lidar Dataset written by Patricia Sawamura and published by . This book was released on 2013 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade the development of inversion techniques for the retrievals of aerosol microphysical properties (e.g. effective radius, volume and surface-area concentrations) and aerosol optical properties (e.g. complex index of refraction and single scattering albedo) from multiwavelength lidar systems brought a new perspective in the study of the vertical distribution of aerosols. In this study retrievals of such parameters were obtained from a hybrid multiwavelength lidar dataset for the first time. In July of 2011, in the Baltimore-Washington DC region, synergistic profiling of optical and microphysical properties of aerosols with both airborne in-situ and ground-based remote sensing systems was performed during the first deployment of DISCOVER-AQ. The hybrid multiwavelength lidar dataset combines elastic ground-based measurements at 355 nm with airborne High Spectral Resolution Lidar (HSRL) measurements at 532 nm and elastic measurements at 1064 nm that were obtained less than 5 km apart of each other. This was the first study to our knowledge in which optical and microphysical retrievals from lidar were obtained during the day and directly compared to AERONET and in-situ measurements for eleven cases. Good agreement was observed between lidar and AERONET retrievals. Larger discrepancies were observed between lidar retrievals and in-situ measurements obtained by the aircraft and aerosol hygroscopic effects are believed to be the main factor of such discrepancies.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Instrument Development for Atmospheric Research and Monitoring by : Jens Bösenberg
Download or read book Instrument Development for Atmospheric Research and Monitoring written by Jens Bösenberg and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jens Bosenberg Max-Planck-Institut fur Meteorologie, Bundesstr. 55, D-20146 Hamburg, Germany TESLAS, which stands for Tropospheric Environmental Studies by Laser Sounding, was formed in November 1987 as a subproject of EUROTRAC to enhance the measurement capabilities for vertical profiling of ozone in the troposphere by means of laser remote sensing. For studies of several atmospheric processes related to the formation and redistribution of photo-oxidants there was a clear need for measuring extended time series with appropriate vertical and temporal resolution. These could not be obtained by conventional in situ techniques, at least not with affordable effort, so remote sensing appeared to be the best way to obtain the required information. At the beginning of the subproject, some Differential Absorption Lidar (DIAL) systems for measuring the vertical distribution of ozone already existed, but their use was restricted to very few laboratories and very few measurement campaigns, since the instruments were highly complex, rather unreliable, and required extensive efforts for maintenance and operation by skilled scientists. In addition, the accuracy of these measurements under a variety of meteorological conditions was not really well established. The main tasks within TESLAS therefore were to develop fully the DIAL-methodology for remote sensing of tropospheric ozone, and to develop instruments which are accurate, reliable, easy to operate, and suitable for field deployment or airborne operation.
Book Synopsis Investigation Into High Spectral Resolution Lidar Technologies by : Martha Dawsey
Download or read book Investigation Into High Spectral Resolution Lidar Technologies written by Martha Dawsey and published by . This book was released on 2013 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Intergovernmental Panel on Climate Change (IPCC) found in their 2007 report that aerosol radiative forcing contributed larger uncertainties to estimates affecting future climate change than any other radiative forcing factor. Lidar is a tool with which this uncertainty can be reduced, increasing our understanding of the impact of aerosols on climate change. Lidar, or laser radar, is a monostatic active remote sensing technique used to measure aerosols and particulates in the atmosphere, with accuracies comparable to in-situ measurements (Russell 2002). High Spectral Resolution Lidar (HSRL) systems use a narrow band filter to spectrally separate Doppler broadened aerosol and molecular back-scattered return signals, which allows for range resolved profiles of aerosol extinction and backscatter. The narrow band filter is a key component, for which two novel approaches are currently being used: NASA Langley Research Center has implemented a wide-angle Michelson interferometer in the second version of their airborne HSRL, and Montana State University is using a spherical Fabry-Perot interferometer in a ground based HSRL. In this research, a comprehensive comparative analysis of these two interferometric filters is performed, the result of which is a methodology for the design of narrow band filters for HSRL systems. The techniques presented identify the critical components and analyze the performance of each filter based on the spectral and angular properties, as well as the efficiency.
Download or read book Lidar written by Claus Weitkamp and published by Springer Science & Business. This book was released on 2006-06-03 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by leading experts in optical radar, or lidar, this book brings all the recent practices up-to-date. With a Foreword by one of the founding fathers in the area. Its broad cross-disciplinary scope should appeal to scientists ranging from the view of optical sciences to environmental engineers. Optical remote sensing has matured to become a lead method for cross-disciplinary research. This new multi-authored book reviews the state-of-the-art in a readable monograph.
Book Synopsis Advances in Atmospheric Remote Sensing with Lidar by : Albert Ansmann
Download or read book Advances in Atmospheric Remote Sensing with Lidar written by Albert Ansmann and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lidar or laser radar, the depth-resolved remote measurement of atmospheric parameters with optical means, has become an important tool in the field of atmospheric and environmental remote sensing. In this volume the latest progress in the development of Lidar methods, experiments, and applications is described. The content is based on selected and thoroughly refereed papers presented at the 18th International Laser Radar Conference, Berlin, 22 - 26 July 1996. The book is divided into six parts which cover the topics of tropospheric aerosols and clouds, Lidar in space, wind, water vapor, troposheric trace gases and plumes, and stratospheric and mesospheric profiling. As a supplement to fundamental LIDAR textbooks this volume may serve as a guide through the blossoming field of modern Lidar techniques.
Book Synopsis Mixed-Phase Clouds by : Constantin Andronache
Download or read book Mixed-Phase Clouds written by Constantin Andronache and published by Elsevier. This book was released on 2017-09-28 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mixed-Phase Clouds: Observations and Modeling presents advanced research topics on mixed-phase clouds. As the societal impacts of extreme weather and its forecasting grow, there is a continuous need to refine atmospheric observations, techniques and numerical models. Understanding the role of clouds in the atmosphere is increasingly vital for current applications, such as prediction and prevention of aircraft icing, weather modification, and the assessment of the effects of cloud phase partition in climate models. This book provides the essential information needed to address these problems with a focus on current observations, simulations and applications. - Provides in-depth knowledge and simulation of mixed-phase clouds over many regions of Earth, explaining their role in weather and climate - Features current research examples and case studies, including those on advanced research methods from authors with experience in both academia and the industry - Discusses the latest advances in this subject area, providing the reader with access to best practices for remote sensing and numerical modeling
Book Synopsis Measurement of Cirrus Cloud Optical Properties by High Spectral Resolution Lidar by : Christian John Grund
Download or read book Measurement of Cirrus Cloud Optical Properties by High Spectral Resolution Lidar written by Christian John Grund and published by . This book was released on 1987 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of the HSRL Model II to Measurements of the Aerosol Backscatter Phase Function and Cross Section by : Christian John Grund
Download or read book Application of the HSRL Model II to Measurements of the Aerosol Backscatter Phase Function and Cross Section written by Christian John Grund and published by . This book was released on 1984 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Upendra N. Singh Publisher :SPIE-International Society for Optical Engineering ISBN 13 : Total Pages :204 pages Book Rating :4.3/5 (91 download)
Book Synopsis Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing by : Upendra N. Singh
Download or read book Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing written by Upendra N. Singh and published by SPIE-International Society for Optical Engineering. This book was released on 2005 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.
