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  • METEOROLOGY AND CLIMATOLOGY  (1,773)
  • 1980-1984  (1,773)
  • 1
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    Results on the verification of satellite data based on a comparison with radiosonde data (1982)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Results of the verification of satellite wind data are represented by comparing them with radiosonde data for the geostationary satellites METEOSAT, GOES and GMS. The quality of METEOSAT pictures improved, reaching the quality of GOES and GMT wind data.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TM-76691 , NAS 1.15:76691
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Calculation of the attenuation and phase displacement per unit of length due to rain composed of ellipsoidal drops (1981)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: All of the phenomena which influence the propagation of radiowaves at frequencies above 10 GHz (attenuation, depolarization, scintillation) can by intensified by parameters directly derived from a solution of individual scatter, naturally in addition to be meteorological elements which characterize the physical medium. The diffusion caused by rainy precipitation was studied using Mie's algorithm for rain composed of spherical drops, and Oguchi's algorithm for rain composed of drops in an ellipsoidal form with axes of rotational symmetry arrange along the vertical line of a generic reference point. Specific phase displacement and attenuation along the principal planes, propagation of radiowaves in generic polarization, and propagation with inclined axes are also considered.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TM-76592 , RIF-1B1778
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Applications of the space perspective to aviation (1983)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: A brief history of weather forecasting was presented starting in the seventeen hundreds with George Hadley to modern day satellite applications.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA. Marshall Space Flight Center Proc.: 6th Ann. Workshop on Meteorol. and Environ. Inputs to Aviation Systems; p 34-36
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    NASA/NOAA/USAID implementation of the South Pacific severe storm detection and warning system project (1984)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: Implementation by NASA of the South Pacific severe storm detection and warning system project for the Fiji Meteorological Service (FMS) in Nadi, Fiji, is discussed. A description of the need and use of the system by the FMS, of data reception, of interactive computer techniques, of training, and of the benefits to be derived from implementation of the system is given. The project allows precise tracking of all South Pacific tropical cyclones with frequent high-resolution reception of both the Japanese GMS and the U.S. GOES-West visible and IR cloud images.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: Advances in Space Research (ISSN 0273-1177); 4; 11, 1
    Format: text
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  • 5
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    The detection and location of lightning from space (1984)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: A lightning mapper sensor was conceived for detecting and locating lightning over large areas of the earth's surface, taking into account also a measurement of the radiant energy and a recording of the time of lightning occurrence. The considered device will basically be a calibrated lightning imager. The type of information provided is currently not available on a large scale basis. By using the mapper, scientists will, for the first time, be able to study the electrosphere from scales on the order of the earth's diameter down to the size of individual storms (10 km). Attention is given to details regarding the sensor components, and questions of sensor performance.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: Conference on Satellite/Remote Sensing and Applications; Jun 25, 1984 - Jun 29, 1984; Clearwater Beach, FL
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Wind shear measuring on board an airliner (1984)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: A measurement technique which continuously determines the wind vector on board an airliner during takeoff and landing is introduced. Its implementation is intended to deliver sufficient statistical background concerning low frequency wind changes in the atmospheric boundary layer and extended knowledge about deterministic wind shear modeling. The wind measurement scheme is described and the adaptation of apparatus onboard an A300 airbus is shown. Preliminary measurements made during level flight demonstrate the validity of the method.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TM-77463 , NAS 1.15:77463 , DFVLR-MITT-80-09 , Mar 26, 1980 - Mar 27, 1980; Aachen; Germany
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Remote sensing of atmospheric particulates: Technological innovation and physical limitations in applications to short-range weather prediction (1984)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: Techniques for remote sensing of particles, from cloud droplet to hailstone size, using optical and microwave frequencies are reviewed. The inherent variability of atmospheric particulates is examined to delineate conditions when the signal can give information to be effectively utilized in a forecasting context. The physical limitations resulting from the phase, size, orientation and concentration variability of the particulates are assessed.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NSF ATM-82-09684 , NSF ATM-82-18349 , ESA Nowcasting 2. Mesoscale Observations and Very-Short-Range Weather Forecasting; p 159-164
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    The life cycle of a tornadic cloud as seen from a geosynchronous satellite (1983)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The life span of a severe storm is on the order of a few hours. Rapid-scan infrared and visible observations from geosynchronous satellites can be useful for studying the life cycle of a severe convective storm. By using artificial colors for pixels representing blackbody temperatures of the cloud top, convective storms can be observed throughout their life cycles. In this paper clouds associated with a tornadic storm, the Ringwood, OK tornado on May 29, 1977, are compared with those without a tornadic storm to illustrate how the infrared and visible observations from a geosynchronous satellite can be used to study the differences in their life cycles. The instability of the air mass and the meteorological background are discussed based on balloon observations.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: AIAA Journal (ISSN 0001-1452); 21; Sept
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
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    Wind measurements by parachute (1982)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Tests used the 8 cm Lotta grenade as well as 12 cm M/70 and 10.5 m/62 grenades, released at altitudes between 2000 and 6400 meters. The parachutes were tracked by AP and RFK. In later experiments wind data were also obtained for comparison by tracking hydrogen filled balloons in part with the CORA system, in part with radar. Generally radar picked up the objects without visual assistance. Wind measurements from parachutes correlated well with those obtained by balloon. Even when the radar locked on to a part of a grenade, descending faster than the parachute, some of the measurements obtained were good. Bodies with a greater rate of descent than parachutes, with less or no tendency toward drift and with sufficient, surface for radar tracking, ought to provide reliable results. The existence of vertically well defined winds of jet stream type at low altitudes was established.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TM-76698 , NAS 1.15:76698
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
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    Evaluation of photogrammetric flight under icing conditions on March 23, 1978 (1981)
    In:  CASI
    Details
    Publication Date: 2019-08-27
    Description: In a double passage through a route laid out in a stagnation zone of the Bavarian forest, it was found that the stagnation and attendant elevation increases the danger of icing. Conversely, it turned out that formation of precipitation reduces the icing intensity. A comparison of both factors showed: the reduction of ice formation through precipitation equals the increase due to stagnation, or even exceeds it.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TM-76617
    Format: application/pdf
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