Download or read book Single laser Raman Differential Absorption Lidar for Atmospheric Ozone Measurements written by and published by . This book was released on 1998 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Ozone Differential Absorption Lidar DIAL Receiver System for Use on Unpiloted Atmospheric Vehicles written by Soenke Goldschmidt and published by . This book was released on 1999 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of global atmosphere ozone concentrations call for flexible lidar systems that can be operated from an unpiloted vehicle (UAV) to reduce the cost of measurement missions. A lidar receiver system consisting of a fiber-optic-coupled telescope has been designed and tested for this purpose. The system weight is 13 kg and its volume of 0.06 m[cubed] would fit into the payload compartment of a Perseus B UAV. The optical efficiency of the telescope is 37 percent at 288 nm and 64 percent at 300 nm. Atmospheric measurements with a DIAL laser system have been performed, and the measured ozone density has matched the data from ozonesondes to an altitude of 7 km.
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.
Download or read book Differential Absorption Lidars for Remote Sensing of Atmospheric Pressure and Temperature Profiles written by and published by . This book was released on 1995 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Atmospheric Lidar Fundamentals written by Chiao-Yao She and published by Cambridge University Press. This book was released on 2022-03-03 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive treatment of the essential physics of light-matter interactions and the fundamentals of atmospheric lidars.
Download or read book An Ozone Differential Absorption Lidar Dial Receiver System for Use on Unpiloted Atmospheric Vehicles written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-29 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of global atmosphere ozone concentrations call for flexible lidar systems that can be operated from an unpiloted atmospheric vehicle (UAV) to reduce the cost of measurement missions. A lidar receiver system consisting of a fiber-optic-coupled telescope has been designed and tested for this purpose. The system weight is 13 kg and its volume of 0.06 m 3 would fit into the payload compartment of a Perseus B UAV. The optical efficiency of the telescope is 37 percent at 288 nm and 64 percent at 300 nm. Atmospheric measurements with a DIAL laser system have been performed, and the measured ozone density has matched the data from ozonesondes to an altitude of 7 km.DeYoung, Russell J. and Goldschmidt, SoenkeLangley Research CenterOPTICAL RADAR; DIFFERENTIAL ABSORPTION LIDAR; RECEIVERS; TELESCOPES; GAS COMPOSITION; GAS DENSITY; COST REDUCTION
Download or read book Development of an Efficient TI written by Khaled A. Elsayed and published by . This book was released on 2002 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pressure Measurements Using an Airborne Differential Absorption Lidar Part 1 Analysis of the Systematic Error Sources written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-20 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote airborne measurements of the vertical and horizontal structure of the atmospheric pressure field in the lower troposphere are made with an oxygen differential absorption lidar (DIAL). A detailed analysis of this measurement technique is provided which includes corrections for imprecise knowledge of the detector background level, the oxygen absorption fine parameters, and variations in the laser output energy. In addition, we analyze other possible sources of systematic errors including spectral effects related to aerosol and molecular scattering interference by rotational Raman scattering and interference by isotopic oxygen fines.Flamant, Cyrille N. and Schwemmer, Geary K. and Korb, C. Laurence and Evans, Keith D. and Palm, Stephen P.Goddard Space Flight CenterREMOTE SENSING; ATMOSPHERIC PRESSURE; PRESSURE MEASUREMENT; VERTICAL DISTRIBUTION; DIFFERENTIAL ABSORPTION LIDAR; RAMAN SPECTRA; AEROSOLS; TROPOSPHERE; SYSTEMATIC ERRORS; OPTICAL RADAR
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.
Download or read book High power Single pass Raman Cells in the Ultraviolet written by Laurent de Schoulepnikoff and published by . This book was released on 1997 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Differential Absorption Lidar with in Situ Aircraft Measurements of Ozone Concentrations written by Honey Lynne Walters and published by . This book was released on 2003 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multiple scattering Effect on Ozone Retrieval from Space based Differential Absorption Lidar Measurements written by and published by . This book was released on 1998 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper examines the effect of multiple scattering on the accuracy of ozone measurement with a spaceborne ozone differential absorption lidar (DIAL) system. Based on standard lidar equations and various models & simulations, single- & multiple-scattering lidar signals are calculated for a DIAL system having an on & off wavelength pair at 305 & 315 nanometres. The effect of multiple scattering on stratospheric & tropospheric ozone retrieval is examined under conditions of background stratospheric aerosol. Under low-visibility conditions in the planetary boundary layer, the presence of multiple scattering causes an overestimation in maritime aerosol and an underestimation in urban & rural aerosol. This effect is studied in three cirrus models. The effect of aerosol & Rayleigh extinction on ozone retrieval is also discussed.
Download or read book Lidar Techniques and Remote Sensing in the Atmosphere written by Emmanuel Mensah Francis Emmanuel Mensah and published by AuthorHouse. This book was released on 2009-05 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides laser and lidar professionals and students with some basics learning tools in the field of lidar, laser instrumentation, and data analysis. It benefits also ordinary readers who are interesting in remote sensing with laser. The reader will first get an idea about the history of laser and introductory knowledge on the electromagnetic theory. Then the book familiarizes with basic important definitions of terms such as stimulated emission of radiation, population inversion, spontaneous emission, absorption, laser, lidar, maser, radar, water vapor mixing ratio, water vapor density, etc.... . Some basic equations used in lidar and some lidar techniques are also introduced. Water vapor is one of the most important atmospheric variables that play a key role in air quality, global warming, and climate change. Despite its abundance in the atmosphere, and its importance for the climate system, many questions regarding water vapor are presently unresolved. Raman Lidar system has an extraordinary ability to sense accurately water's high temporal and spatial structure in the atmosphere. This book is a review of the electromagnetic theory. It is finally an introduction to lidar techniques for the measurement of Nitrogen, oxygen, and water vapor in the atmosphere.
Download or read book Nineteenth International Laser Radar Conference written by Upendra N. Singh and published by . This book was released on 1998 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication contains extended abstracts of papers presented at the Nineteenth International Laser Radar Conference, held at Annapolis, Maryland, July 6-10, 1998; 260 papers were presented in both oral and poster sessions. The topics of the conference sessions were Aerosol Clouds, Multiple Scattering; Tropospheric Profiling, Stratospheric/Mesospheric Profiling; Wind Profiling; New Lidar Technology and Techniques; Lidar Applications, Including Altimetry and Marine; Space and Future Lidar; and Lidar Commercialization/Eye Safety. This conference reflects the breadth of research activities being conducted in the lidar field. These abstracts address subjects from lidar-based atmospheric investigations, development of new lasers and lidar system technology, and current and future space-based lidar systems.
Download or read book Differential Absorption Lidar Measurements of Troposheric Ozone in the Arctic written by Jeff Adams Seabrook and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
