Download or read book Comparison of the EMI Long Sea Path Transmittance Measurements with LOWTRAN 5 Calculations written by William O. Gallery and published by . This book was released on 1980 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of broadband visible and infrared transmittance measurements made by EMI Ltd. over a 20 km sea path are compared to transmittances calculated by LOWTRAN 5. The purpose of the comparison is primarily to test the validity of the Maritime aerosol model in LOWTRAN under realistic conditions, and incidentally to test the molecular extinction in several window regions. The results of this comparison are the following: (a) the Maritime aerosol model provides a good description of aerosol extinction for conditions of a moderate wind blowing over the open ocean; (b) the calculated molecular extinction in the 8 to 12 micron region is accurate to within 7 percent in the log of the transmittance, although there is an indication the water vapor continuum absorption coefficient may be slightly too large; (c) the calculated molecular extinction in the 4.5 to 5.0 micron region is seriously underpredicted due to the lack of a water vapor continuum in this region.

Download or read book Comparison of the EMI Long Sea Path Transmittance Measurements with LOWTRAN 5 Calculations written by William O. Gallery and published by . This book was released on 1980 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of broadband visible and infrared transmittance measurements made by EMI Ltd. over a 20 km sea path are compared to transmittances calculated by LOWTRAN 5. The purpose of the comparison is primarily to test the validity of the Maritime aerosol model in LOWTRAN under realistic conditions, and incidentally to test the molecular extinction in several window regions. The results of this comparison are the following: (a) the Maritime aerosol model provides a good description of aerosol extinction for conditions of a moderate wind blowing over the open ocean; (b) the calculated molecular extinction in the 8 to 12 micron region is accurate to within 7 percent in the log of the transmittance, although there is an indication the water vapor continuum absorption coefficient may be slightly too large; (c) the calculated molecular extinction in the 4.5 to 5.0 micron region is seriously underpredicted due to the lack of a water vapor continuum in this region.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book R D Abstracts written by Technology Reports Centre (Great Britain) and published by . This book was released on 1981 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1981 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atmospheric Transmittance radiance Computer Code LOWTRAN 5 written by F. X. Kneizys and published by . This book was released on 1980 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atmospheric Transmittance radiance written by F. X. Kneizys and published by . This book was released on 1980 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Accessions List written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1981 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atmospheric Transmittance from 0 25 to 28 5 Um written by J. E. A. Selby and published by . This book was released on 1975 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: A FORTRAN computer program, LOWTRAN 3, is described for calculating the transmittance of the atmosphere in the spectral region from 0.25 to 28.5 micrometers at a spectral resolution of 20/cm. The program provides a choice of six atmospheric models covering seasonal and latitudinal variations from sea level to 100 km, two haze models, and accounts for molecular absorption, molecular scattering, and aerosol extinction. Refraction and earth curvature effects are also included. This program provides some modifications to the molecular absorption and aerosol extinction data provided in an earlier LOWTRAN 2 report. In addition, input modifications have been made, making the LOWTRAN 3 program considerably more flexible in terms of the input of meteorological data.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1981 with total page 1176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Research Papers written by and published by . This book was released on with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Meteorological and Geoastrophysical Abstracts written by and published by . This book was released on 1981 with total page 1340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Infrared Handbook written by Environmental Research Institute of Michigan. Infrared Information and Analysis Center and published by . This book was released on 1978 with total page 1740 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Free Space Laser Communications written by Arun K. Majumdar and published by Springer Science & Business Media. This book was released on 2010-05-05 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a comprehensive tutorial on the emerging technology of free-space laser communications (FSLC). The book offers an all-inclusive source of information on the basics of FSLC, and a review of state-of-the-art technologies. Coverage includes atmospheric effects for laser propagation and FSLC systems performance and design. Free-Space Laser Communications is a valuable resource for engineers, scientists and students interested in laser communication systems designed for the atmospheric optical channel.

Download or read book Remote Sensing of Soils written by Ravi Shankar Dwivedi and published by Springer. This book was released on 2017-08-19 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about applications of remote sensing techniques in the studies on soils. In pursuance of the objective, the book initially provides an introduction to various elements and concepts of remote sensing, and associated technologies , namely Geographic Information System (GIS), Global Positioning System (GPS) in chapter-1. An overview of the sensors used to collect remote sensing data and important Earth observation missions is provided in chapter-2. The processing of satellite digital data (geometric and radiometric corrections, feature reduction, digital data fusion, image enhancements and analysis) is dealt with in Chapter-3. In the chapter to follow the interpretation of remote sensing data , very important and crucial step in d eriving information on natural resources including soils resources, is discussed. An introduction to soils as a natural body with respect to their formation, physical and chemical properties used during inventory of soils, and soil classification is given in Chapter-5.The spectral response patterns of soils including hyperspectral characteristics -fundamental to deriving information on soils from spectral measurements, and the techniques of soil resources mapping are discussed in chapter-6 and -7,respectively. Furthermore, the creation of digital soil resources database and the development of soil information systems, a very important aspect of storage and dissemination of digital soil data to the end users are discussed in ch.apter-8. Lastly, the applications of remote sensing techniques in soil moisture estimation and soil fertility evaluation are covered in chapter-9 and -10, respectively.

Download or read book Opto Mechanical Systems Design Volume 2 written by Paul Yoder and published by CRC Press. This book was released on 2017-12-19 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Opto-Mechanical Systems Design, Fourth Edition is different in many ways from its three earlier editions: coauthor Daniel Vukobratovich has brought his broad expertise in materials, opto-mechanical design, analysis of optical instruments, large mirrors, and structures to bear throughout the book; Jan Nijenhuis has contributed a comprehensive new chapter on kinematics and applications of flexures; and several other experts in special aspects of opto-mechanics have contributed portions of other chapters. An expanded feature—a total of 110 worked-out design examples—has been added to several chapters to show how the theory, equations, and analytical methods can be applied by the reader. Finally, the extended text, new illustrations, new tables of data, and new references have warranted publication of this work in the form of two separate but closely entwined volumes. This second volume, Design and Analysis of Large Mirrors and Structures, concentrates on the design and mounting of significantly larger optics and their structures, including a new and important topic: detailed consideration of factors affecting large mirror performance. The book details how to design and fabricate very large single-substrate, segmented, and lightweight mirrors; describes mountings for large mirrors with their optical axes in vertical, horizontal, and variable orientations; indicates how metal and composite mirrors differ from ones made of glass; explains key design aspects of optical instrument structural design; and takes a look at an emerging technology—the evolution and applications of silicon and silicon carbide in mirrors and other types of components for optical applications.