Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
A Study Of The Dependence Of Radar Backscatter Cross Section On Wind Speed And Wave Slope From The Marsen Experimental Results A Contribution To Studies Of Radar Backscattering From The Sea Surface Supplement To Final Report
Download A Study Of The Dependence Of Radar Backscatter Cross Section On Wind Speed And Wave Slope From The Marsen Experimental Results A Contribution To Studies Of Radar Backscattering From The Sea Surface Supplement To Final Report full books in PDF, epub, and Kindle. Read online A Study Of The Dependence Of Radar Backscatter Cross Section On Wind Speed And Wave Slope From The Marsen Experimental Results A Contribution To Studies Of Radar Backscattering From The Sea Surface Supplement To Final Report ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis A Study of the Dependence of Radar Backscatter Cross Section on Wind Speed and Wave Slope from the MARSEN Experimental Results (A Contribution to Studies of Radar Backscattering from the Sea Surface). Supplement to Final Report by : D. E. Weissman
Download or read book A Study of the Dependence of Radar Backscatter Cross Section on Wind Speed and Wave Slope from the MARSEN Experimental Results (A Contribution to Studies of Radar Backscattering from the Sea Surface). Supplement to Final Report written by D. E. Weissman and published by . This book was released on 1983 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis of the radar cross section data acquired from the NORDSEE tower during the MARSEN Experiment by the Naval Research Laboratory was made. A dependence on both wind speed and sea state was expected, based on observations and results obtained during the Gulf of Mexico Experiment. The range of variation of wind speed and wave slope during MARSEN were substantial. However, within a narrow range of wind speeds the range of variation of wave slopes was insufficient to demonstrate a radar cross section dependence on it. The results contained herein display appreciable randomness at each slope value; this tends to mask a likely dependence of radar cross section on slope. These results do not conflict with those obtained in the Gulf of Mexico, some of which are included for comparison, they are just too limited in range to add independent support.
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 1984 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1984 with total page 1084 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Dependence of Radar Backscatter on the Energetics of the Air-Sea Interface by : Marie C. Colton
Download or read book Dependence of Radar Backscatter on the Energetics of the Air-Sea Interface written by Marie C. Colton and published by . This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Normalized Radar Cross-Section (NRCS), the fundamental measurement made by radar scatterometers, was obtained as part of the Water-Air Vertical Exchanges 1987 (WAVES87) experiment. The experiment was designed to evaluate the effects of environmental parameters on the NRCS and was performed from a research tower located in Lake Ontario, on which two microwave scatterometers operating at 14.0 and 5.0GHz were installed for six weeks in the autumn of 1987. The novel aspect of this experiment was that the 14.0GHz radar automatically rotated through 300 deg in azimuth angle at six different incidence angles to the water surface, accompanied by simultaneous measurements of wind stress and high resolution directional wave spectra. Therefore, the incidence and azimuthal angle behavior of the NRCS was examined as a function of wind speed, friction velocity, wind direction, wave direction and atmospheric stability. The dependence of the NRCS on wind speed for various incidence angles is similar to previous results. However, the slope exponents of the NRCS vs. 19.5m wind speed curves at intermediate incidence angles are higher than the corresponding open ocean measurements. Scaling the lake neutral wind speed data by the ratio of lake to ocean drag coefficients reduces the slopes of the curves and suggests the drag coefficient has a sea state dependence. (RH).
Book Synopsis Government Reports Annual Index: Keyword A-L by :
Download or read book Government Reports Annual Index: Keyword A-L written by and published by . This book was released on 1984 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1984 with total page 1532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dependence of Radar Backscatter on the Energetics of the Air-Sea Interface by : Marie C. Colton
Download or read book Dependence of Radar Backscatter on the Energetics of the Air-Sea Interface written by Marie C. Colton and published by . This book was released on 1989 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Normalized Radar Cross-Section (NRCS), the fundamental measurement made by radar scatterometers, was obtained as part of the Water-Air Vertical Exchanges 1987 (WAVES87) experiment. The experiment was designed to evaluate the effects of environmental parameters on the NRCS and was performed from a research tower located in Lake Ontario, on which two microwave scatterometers operating at 14.0 and 5.0GHz were installed for six weeks in the autumn of 1987. The novel aspect of this experiment was that the 14.0GHz radar automatically rotated through 300 deg in azimuth angle at six different incidence angles to the water surface, accompanied by simultaneous measurements of wind stress and high resolution directional wave spectra. Therefore, the incidence and azimuthal angle behavior of the NRCS was examined as a function of wind speed, friction velocity, wind direction, wave direction and atmospheric stability. The dependence of the NRCS on wind speed for various incidence angles is similar to previous results. However, the slope exponents of the NRCS vs. 19.5m wind speed curves at intermediate incidence angles are higher than the corresponding open ocean measurements. Scaling the lake neutral wind speed data by the ratio of lake to ocean drag coefficients reduces the slopes of the curves and suggests the drag coefficient has a sea state dependence. (RH).
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781724223807 Total Pages :418 pages Book Rating :4.2/5 (238 download)
Book Synopsis Fundamental Studies of Radar Scattering from Water Surfaces by : National Aeronautics and Space Administration (NASA)
Download or read book Fundamental Studies of Radar Scattering from Water Surfaces written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-24 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: The University of Kansas and the University of Washington conducted a series of experiments during July and August of 1989, and July and August of 1990, to study the effects of various geophysical parameters on radar backscatter. The experiments were conducted from a platform in Lake Washington. Measurements of backscattered power and radar range were made by the University of Kansas, and environmental data such as wind speed, wind direction, and air and water temperature were measured by the University of Washington. Results of preliminary data processing are described. Radar data were acquired using two radars, one that operated at C and X bands and another at Ka band. Measurements were made at W and HH antenna polarizations, at different angles of incidence and under various wind conditions. Plots of backscattered power, normalized radar cross section, and wave height, and the Modulation Transfer Functions of selected data are presented. Salam, A. and Bush, D. and Gogineni, S. and Zaide, A. Unspecified Center NASA-CR-194030, NAS 1.26:194030, RSL-TR-7970-2 NAGW-1278...
Book Synopsis Bibliography of the Marine Environment by :
Download or read book Bibliography of the Marine Environment written by and published by . This book was released on 1988 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radar Backscatter from the Sea Controlled Experiments by :
Download or read book Radar Backscatter from the Sea Controlled Experiments written by and published by . This book was released on 1990 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the final report on ONR Grant N00014-89-J-3022. Since most of the work was in journal articles, conference proceedings, and reports, this report is brief. Work continued, and was largely concluded, on analysis of the TOWARD, SAXON-CLT, and NILDEX data sets. Comparison between optical and radio measurements of ripple spectra at TOWARD showed favorable results. Although the wind direction was usually unfavorable for SAXON-CLT, we obtained useful data on modulation in the crosswind direction. We also demonstrated that a vector slope gauge can work, but for logistic reasons its deployment made its footprint close to the tower. Hence, the data are useful only for proof of concept, not for oceanographic application. A new theory of SAR imaging of the ocean was developed. It incorporates elements of previous theories, but shows an improved way to find out the effects of signal modulations on the observed spectra. It confirms, by a different method, the results from several other theoretical and experimental studies on processor focus adjustment. These show optimum image contrast occurs for along-track wave motion when the processor is set to (phase velocity)/2. The method of analysis used allowed closer examination of the basis for the two-scale (Bragg resonance with slope modulation) model for ocean backscatter. The results cast some doubt on the validity of the Bragg-scatter model for explaining many observed phenomena.
Book Synopsis Bragg-scattering and Equilibrium Ranges in Wind-generated Waves by : Mark A. Donelan
Download or read book Bragg-scattering and Equilibrium Ranges in Wind-generated Waves written by Mark A. Donelan and published by . This book was released on 1984 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radar Backscattering from a Sea Having an Anisotropic Large-scale Surface, Part 2 by :
Download or read book Radar Backscattering from a Sea Having an Anisotropic Large-scale Surface, Part 2 written by and published by . This book was released on 1977 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Theoretical Study of Radar Return and Radiometric Emission from the Sea by : William H. Peake
Download or read book A Theoretical Study of Radar Return and Radiometric Emission from the Sea written by William H. Peake and published by . This book was released on 1972 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dependence of the Normalized Radar Cross Section of Ocean Waves on Bragg Wavelength-wind Speed and Direction Sensitivity by : R. Scott Collyer
Download or read book Dependence of the Normalized Radar Cross Section of Ocean Waves on Bragg Wavelength-wind Speed and Direction Sensitivity written by R. Scott Collyer and published by . This book was released on 1994 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Allen E. Fuhs Publisher :AIAA (American Institute of Aeronautics & Astronautics) ISBN 13 : Total Pages :140 pages Book Rating :4.F/5 ( download)
Book Synopsis Radar Cross Section Lectures by : Allen E. Fuhs
Download or read book Radar Cross Section Lectures written by Allen E. Fuhs and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 1984 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extensive graphs and notes, prepared with the designer in mind, provide insight into scattering of electromagnetic waves by various objects. Includes appropriate equations and sample calculations.
Book Synopsis Millimetric Radar Backscatter from Snowcover by : L. D. Williams
Download or read book Millimetric Radar Backscatter from Snowcover written by L. D. Williams and published by . This book was released on 1990 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modulation of Radar Backscatter from the Ocean by a Variable Surface Current by : E. A. Caponi
Download or read book Modulation of Radar Backscatter from the Ocean by a Variable Surface Current written by E. A. Caponi and published by . This book was released on 1988 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculations of surface wave and radar cross section modulation induced by a spatially varying surface current have been compared with field measurements made with SAR (X- and L-bands), real aperture radar (X-band), laser slope guage, and CCD video camera during the Joint Canada/U.S. Ocean Wave Investigation Project (JOWIP) which took place in August 1983. The comparison reveals that (i) many existing wind-relaxation models underpredict the hydrodynamic effect of the current, (ii) simple Bragg scattering model underpredicts radar backscatter modulation for higher frequency radars (e.g., X-band) but appears acceptable at lower radar frequencies (e.g., L-band), (iii) the discrepancy between measurements and calculations at high radar frequency is reduced, but not eliminated, when the effects of long surface waves have been accounted for. Keywords include: Radar backscatter, Surface wave modulations, Wave-current interactions, Georgia strait experiment, and JOWIP. (RRH).
