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  • 1
    Publication Date: 2011-08-24
    Description: Laboratory experiments to quantify the global production of NOx (NO + NO2) in the troposphere due to atmospheric lightning and biogenic activity in soil are presented. These laboratory experiments, as well as other studies, suggest that the global production of NOx by lightning probably ranges between 2 and 20 MT(N)y-1 of NO and is strongly dependent on the total energy deposited by lightning, a quantity not well-known. In our laboratory experiments, nitrifying micro-organisms is soil were found to be a significant source of both NO and nitrous oxide (N2O). The measured production ratio of NO to N2O averaged 2-3 for oxygen partial pressures of 0.5-10%. Extrapolating these laboratory measurements to the global scale, which is somewhat risky, suggests that nitrifying micro-organisms in soil may account for as much as 10 MT(N) y-1 of NO. Additional experiments with denitrifying micro-organisms gave an NO to N2O production ratio ranging from 2 to 4 for an oxygen partial pressure of 0.5% and a ratio of less than unity for oxygen partial pressures ranging from 1 to 20%. The production of NO and N2O, normalized with respect to micro-organism number indicates that the production of both NO and N2O by denitrifying micro-organisms is at least an order of magnitude less than production by nitrifying micro-organisms for the micro-organisms studied.
    Keywords: Meteorology and Climatology
    Type: Atmospheric environment (ISSN 0004-6981); Volume 18; 9; 1797-804
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  • 2
    Publication Date: 2011-08-24
    Description: A self-consistent method of determining initial conditions for the model presented by Berner, Lasaga, and Garrels (1983) (henceforth, the BLAG model) is derived, based on the assumption that the CO2 geochemical cycle was in steady state at t = -100 my (million years). This initialization procedure leads to a dissolved magnesium concentration higher than that calculated by Berner, Lasaga, and Garrels and to a low ratio of dissolved calcium to bicarbonate prior to 60 my ago. The latter prediction conflicts with the geologic record of evaporite deposits, which requires that this ratio remain greater than 0.5. The contradiction is probably caused by oversimplifications in the BLAG model, such as the neglect of the cycles of organic carbon and sulfur.
    Keywords: Meteorology and Climatology
    Type: American journal of science (ISSN 0002-9599); Volume 284; 1175-82
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  • 3
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    In:  CASI
    Publication Date: 2004-10-05
    Description: The papers in this section include: 1)'Wind Derivation from Geostationary Satellites'; 2) 'The Operational Processing of Wind Estimates from Cloud Motions: Past, Present, and Future'; 3) 'Intercomparision of SMS Wind Sets: A Study Using Rapid Scan Imagery'; 4) 'Mesoscale Wind Fields for a Severe Storm Situation Determined from SMS Cloud Observations'; 5) 'Moisture Convergence Using Satellite-Derived Wind Fields: A Severe Local Storm Case Study'
    Keywords: Meteorology and Climatology
    Type: Workshop on Satellite Meteorology. Part 2: Satellite Image Analysis and Interpretation
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  • 4
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    In:  CASI
    Publication Date: 2013-08-31
    Description: The papers in this section include: 1) 'Thunderstorm Top Structure Observed by Aircraft Overflights with an Infrared Radiometer'; 2) 'Thunderstorm Intensity as Determined from Satellite Data'; 3) 'Relation of Satellite-Based Thunderstorm Intensity to Radar-Estimated Rainfall'; 4) 'A Simple Physical Basis for Relating Geosynchronous Satellite Infrared Observations to Thunderstorm Rainfall'; 5) 'Satellite-Observed Cloud-Top Height Changes in Tornadic Thunderstorms'; 6) 'Predicting Tropical Cyclone Intensity Using Satellite-Measured Equivalent Blackbody Temperatures of Cloud Tops'.
    Keywords: Meteorology and Climatology
    Type: Workshop on Satellite Meteorology. Part 2: Satellite Image Analysis and Interpretation
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  • 5
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    In:  CASI
    Publication Date: 2013-08-31
    Description: The papers in this presentation include: 1) 'Stereographic Observations from Geosynchronous Satellites: An Important New Tool for the Atmospheric Sciences'; 2) 'Thunderstorm Cloud Top Ascent Rates Determined from Stereoscopic Satellite Observations'; 3) 'Artificial Stereo Presentation of Meteorological Data Fields'.
    Keywords: Meteorology and Climatology
    Type: Workshop on Satellite Meteorology. Part 2: Satellite Image Analysis and Interpretation
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  • 6
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    In:  CASI
    Publication Date: 2018-06-09
    Description: Northern Video Graphics, Inc. developed a low-cost satellite receiving system for users such as independent meteorologists, agribusiness firms, small airports or flying clubs, marine vessels and small TV stations. Called Video Fax, it is designed for use with certain satellites; the GOES (Geostationary Operational Environmental Satellite) spacecraft operated by the National Oceanic and Atmospheric Administration, the European Space Agency's Meteosat and Japan's Geostationary Meteorological Satellite. By dictum of the World Meteorological Organization, signals from satellites are available to anyone without cost so the Video Fax user can acquire signals directly from the satellite and cut out the middle man, enabling savings. Unit sells for about one-fifth the cost of the equipment used by TV stations. It consists of a two-meter antenna; a receiver; a microprocessor-controlled display computer; and a video monitor. Computer stores data from the satellites and converts it to an image which is displayed on the monitor. Weather map can be preserved as signal data on tape, or it can be stored in a video cassette as a permanent image.
    Keywords: Meteorology and Climatology
    Type: Spinoff 1982; 109
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  • 7
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    In:  CASI
    Publication Date: 2018-06-09
    Description: Observer Single-handed Transatlantic Race (OSTAR) participants were aided by a French-American space-based monitoring system which reported the yacht's positions throughout the race, and also served as an emergency locator service. Originating from NASA's Nimbus 6 Satellite, use of this system, called ARGOS made the OSTAR competition the most accurately reported sea race ever conducted. Each boat carried a portable transmitter allowing 88 new sources of oceanographic data available during the race.
    Keywords: Meteorology and Climatology
    Type: Spinoff 1981; 70-71
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  • 8
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    In:  CASI
    Publication Date: 2018-06-09
    Description: Lightning Current Detector (LCD) was developed to monitor the magnitude of lightning strikes. Information it supplies is useful in evaluating lightning protection designs for such systems as telephone cables, radio broadcast towers, power transmission equipment and oil well towers.
    Keywords: Meteorology and Climatology
    Type: Spinoff 1981; 68
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  • 9
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    In:  CASI
    Publication Date: 2019-08-28
    Description: The Workshop on Satellite Meteorology is co-sponsored by the Cooperative Institute for Research in the Atmosphere (CIRA) at Colorado State University and the American Meteorlogical Society's Committee on Meteorological Aspects of Aerospace Systems. The workshop covers uses of satellite data in atmospheric science. It provides state-of-the-art information to those in Universities, research groups, and other users. One area of primary focus is to provide source material to university personnel for developing and augmenting courses in satellite meteorology and the atmospheric sciences. The items in the program include information on meteorological satellites and data sources, uses of satellite imagery for all scales of weather analysis and forecasting, uses of sounding data and other radiance information and research opportunities on interactive systems. Each session is presented by a group of experts in the field and includes an open discussion of the state-of-the-art and promising areas for future development. This pre-print volume is one of three parts on the workshop. The three parts are: PART I. Satellites and Their Data; PART II. Satellite Image Analysis and Interpretation; PART III. Satellite Soundings and Their Uses.
    Keywords: Meteorology and Climatology
    Type: Workshop on Satellite Meteorology; Jul 19, 1982 - Jul 23, 1982; Fort Collins, CO; United States
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  • 10
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    In:  CASI
    Publication Date: 2019-07-13
    Description: The Workshop on Satellite Meteorology is co-sponsored by the Cooperative Institute for Research in the Atmosphere (CIRA) at Colorado State University and the American Meteorological Society's Committee on Meteorological Aspects of Aerospace Systems. The workshop covers uses of satellite data in atmospheric science. It provides state-of-the-art information to those in Universities, research groups, and other users. One area of primary focus is to provide source material to university personnel for developing and augmenting courses in satellite meteorology and the atmospheric sciences. The items in the program include information on meteorological satellites and data sources, uses of satellite imagery for all scales of weather analysis and forecasting, uses of sounding data and other radiance information and research opportunities on interactive systems. Each session is presented by a group of experts in the field and includes an open discussion of the state-of-the-art and promising areas for future development. This pre-print volume is one of three parts on the workshop. The three parts are: PART I. Satellites and Their Data; PART II. Satellite Image Analysis and Interpretation; PART III. Satellite Soundings and Their Uses.
    Keywords: Meteorology and Climatology
    Type: Workshop on Satellite Meteorology; Jul 19, 1982 - Jul 23, 1982; Fort Collins, CO; United States
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  • 11
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    In:  Other Sources
    Publication Date: 2019-07-13
    Description: The whistler rate estimated from the plasma wave analyser implies a lightning flash Evidence exists for lightning activity on the Earth, Jupiter, Saturn, and Venus. analysis of spacecraft observations gives a better idea of how the activity varies from planet to planet, but leave many questions unanswered. This paper will examine recent research results on extraterrestrial compare the characteristics of terrestrial and extraterrestrial lightning, and examine the questions raised by the comparisons. Excellent reviews of terrestrial lightning are available in Lightning (Uman, 1969), Lightning (edited by Golde, 1977), and Handbook of Atmospherics (edited by Vollard, 1982). Review articles on extraterrestrial lightning have been presented b'y Rinnert (1982), Levin et al (1983), and Williams et al (1983). Because of the availability of these review articles, only a brief review will be included here where needed. This paper is organized into sections discussing lightning activity on Jupiter, Venus, and Saturn. Next a brief section is presented on the level of lightning activity that can be expected on Titan. A short section comparing the characteristics of terrestrial and extraterrestrial lightning is followed by a section discussing questions raised by the observations. The last section summarizes results.
    Keywords: Meteorology and Climatology
    Type: Atmospheric Electricity; Jun 03, 1984 - Jun 08, 1984; Albany, NY; United States
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  • 12
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    In:  CASI
    Publication Date: 2019-07-13
    Description: An environmental fog simulation (EFS) attachment was developed to aid in the study of natural low-visibility visual cues and subsequently used to examine the realism effect upon the aircraft simulator visual scene. A review of the basic fog equations indicated that the two major factors must be accounted for in the simulation of low visibility-one due to atmospheric attenuation and one due to veiling luminance. These factors are compared systematically by: comparing actual measurements lo those computed from the Fog equations, and comparing runway-visual-range-related visual-scene contrast values with the calculated values. These values are also compared with the simulated equivalent equations and with contrast measurements obtained from a current electronic fog synthesizer to help identify areas in which improvements are needed. These differences in technique, the measured values, the Features of both systems, a pilot opinion survey of the EFS fog, and improvements (by combining features of both systems) that are expected to significantly increase the potential as well as flexibility for producing a very high-fidelity, low-visibility visual simulation are discussed.
    Keywords: Meteorology and Climatology
    Type: NASA/TM-1981-208083 , NAS 1.15:208083 , AIAA Paper 81-0982 , Journal of Aircraft; 19; 9; 757-764|Flight Simulation Technologies; Jun 17, 1981 - Jun 19, 1981; Long Beach, CA; United States
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  • 13
    Publication Date: 2019-07-13
    Description: The proceedings of a workshop on meteorological and environmental inputs to aviation systems held at The University of Tennessee Space Institute, Tullahoma, Tennessee, March 25-27, 1980, are reported. The workshop was jointly sponsored by NASA, NOAA, and FAA and brought together many disciplines of the aviation communities in round table discussions. The major objectives of the workshop are to satisfy such needs of the sponsoring agencies as the expansion of our understanding and knowledge of the interaction of the atmosphere with aviation systems, the better definition and implementation of services to operators, and the collection and interpretation of data for establishing operational criteria relating the total meteorological inputs from the atmospheric sciences to the needs of aviation communities. The unique aspects of the workshop were the diversity of the participants and the achievement of communication across the interface of the boundaries between pilots, meteorologists, training personnel, accident investigators, traffic controllers, flight operation personnel from military, civil, general aviation, and commercial interests alike. Representatives were in attendance from government, airlines, private agencies, aircraft manufacturers, Department of Defense, industries, research institutes, and universities. Full-length papers from invited speakers addressed topics on icing, turbulence, wind and wind shear, ceilings and visibility, lightning, and atmospheric electricity. These papers are contained in the proceedings together with the committee chairmen's reports on the results and conclusions of their efforts on similar subjects.
    Keywords: Meteorology and Climatology
    Type: NASA-CP-2139 , FAA-RD-80-67 , Annual Workshop on Meteorological and Environmental Inputs to Aviation Systems; Mar 25, 1980 - Mar 27, 1980; Tullahoma, TN; United States
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  • 14
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    In:  Other Sources
    Publication Date: 2019-08-15
    Description: The impact of life on the atmosphere is examined through a discussion of the budgets of important atmospheric constituents and the processes that control their concentrations. Life profoundly influences oxygen and a number of minor atmospheric constituents, but many important gases, including those with the greatest effect on global climate, appear to be little altered by biological processes, at least in the steady state.
    Keywords: Meteorology and Climatology
    Type: Bioscience (ISSN 0006-3568); 34; 8; 486-91
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