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  • EARTH RESOURCES AND REMOTE SENSING  (140)
  • ENERGY PRODUCTION AND CONVERSION  (90)
  • METEOROLOGY AND CLIMATOLOGY  (60)
  • 1980-1984  (290)
  • 1982  (290)
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  • 1980-1984  (290)
Year
  • 1
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    Radar and infrared remote sensing of geothermal features at Pilgrim Springs, Alaska (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: High-altitude radar and thermal imagery collected by the NASA research aircraft WB57F were used to examine the structural setting and distribution of radiant temperatures of geothermal anomalies in the Pilgrim Springs, Alaska area. Like-polarized radar imagery with perpendicular look directions provides the best structural data for lineament analysis, although more than half the mapped lineaments are easily detectable on conventional aerial photography. Radiometer data and imagery from a thermal scanner were used to evaluate radiant surface temperatures, which ranged from 3 to 17 C. The evening imagery, which utilized density-slicing techniques, detected thermal anomalies associated with geothermal heat sources. The study indicates that high-altitude predawn thermal imagery may be able to locate relatively large areas of hot ground in site-specific studies in the vegetated Alaskan terrain. This imagery will probably not detect gentle lateral gradients.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Remote Sensing of Environment; 12; Nov. 198
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  • 2
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    Improved definition of crustal magnetic anomalies for MAGSAT data (1982)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The routine correction of MAGSAT vector magnetometer data for external field effects such as the ring current and the daily variation by filtering long wavelength harmonics from the data is described. Separation of fields due to low altitude sources from those caused by high altitude sources is affected by means of dual harmonic expansions in the solution of Dirichlet's problem. This regression/harmonic filter procedure is applied on an orbit by orbit basis, and initial tests on MAGSAT data from orbit 1176 show reduction in external field residuals by 24.33 nT RMS in the horizontal component, and 10.95 nT RMS in the radial component.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E82-10314 , NASA-CR-168889 , NAS 1.26:168889
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    NASA TECHNICAL REPORTS
  • 3
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    Comparison of diverse methods for the correction of atmospheric effects on LANDSAT and SKYLAB images (1982)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Earth's atmosphere reduces a sensors ability in currently discriminating targets. Using radiometric correction to reduce the atmospheric effects may improve considerably the performance of an automatic image interpreter. Several methods for radiometric correction from the open literature are compared leading to the development of an atmospheric correction system.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10079 , NASA-CR-165122 , NAS 1.26:165122 , INPE-2471-PRE/160 , Reuniao Anual da SBPC; Jul 01, 1981; Salvador, Bahia
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  • 4
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    Automatic interpretation of MSS-LANDSAT data applied to coal refuse site studies in southern Santa Catarina State, Brazil (1982)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The coal mining district in southeastern Santa Catarina State is considered one of the most polluted areas of Brazil. The author has identified significant preliminary results on the application of MSS-LANDSAT digital data to monitor the coal refuse areas and its environmental consequences in this region.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10066 , NASA-CR-169577 , NAS 1.26:169577 , INPE-2410-PRE/119 , Intern. Symp. on Remote Sensing of Environ.; Jun 02, 1982 - Jun 09, 1982; Buenos Aires
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  • 5
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    A comparison of simulated thematic mapper data and multispectral scanner data for Kingsbury County, South Dakota (1982)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Keywords: EARTH RESOURCES AND REMOTE SENSING
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  • 6
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    Doppler radar echoes of lightning and precipitation at vertical incidence (1982)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: Digital time series data at 16 heights within two storms were collected at vertical incidence with a 10-cm Doppler radar. On several occasions during data collection, lightning echoes were observed as increased reflectivity on an oscilloscope display. Simultaneously, lightning signals from nearby electric field change antennas were recorded on an analog recorder together with the radar echoes. Reflectivity, mean velocity, and Doppler spectra were examined by means of time series analysis for times during and after lightning discharges. Spectra from locations where lightning occurred show peaks, due to the motion of the lightning channel at the air speed. These peaks are considerably narrower than the ones due to precipitation. Besides indicating the vertical air velocity that can then be used to estimate hydrometeor-size distribution, the lightning spectra provide a convenient means to estimate the radar cross section of the channel. Subsequent to one discharge, we deduce that a rapid change in the orientation of hydrometeors occurred within the resolution volume.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: Journal of Geophysical Research; 87; Aug. 20
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  • 7
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    Wind structure and small-scale wind variability in the stratosphere and mesosphere during the November 1980 Energy Budget Campaign (1982)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: Rocket observations made from two sites in northern Scandinavia between November 6 and December 1, 1980, as part of the Energy Budget Campaign are discussed. It was found that significant vertical and temporal changes in the wind structure were present and that they coincided with different geomagnetic conditions, that is, quiet and enhanced. Before November 16, the meridional wind component above 60 km was found to be positive (southerly), whereas the magnitude of the zonal wind component increased with altitude. After November 16 the meridional component became negative (northerly), and the magnitude of the zonal wind component was observed to decrease with altitude. Time sections of the perturbations of the zonal wind reveal the presence of vertically propagating waves, suggesting gravity wave activity. The waves are found to increase in wavelength from 3-4 km near 40 km to more than 12 km near 80 km. The observational techniques made use of chaff foil, chemical trails, inflatable spheres, and parachutes.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: (ISSN 0273-1177)
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  • 8
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    Solubility of Sulfur Dioxide in Sulfuric Acid (1982)
    In:  CASI
    Details
    Publication Date: 2016-05-11
    Description: The solubility of sulfur dioxide in 50% (wt./wt.) sulfuric acid was evaluated by regular solution theory, and the results verified by experimental measurements in the temperature range of 25 C to 70 C at pressures of 60 to 200 PSIA. The percent (wt./wt.) of sulfur dioxide in 50% (wt./wt.) sulfuric acid is given by the equation %SO2 = 2.2350 + 0.0903P - 0.00026P 10 to the 2nd power with P in PSIA.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: MCC Associates, Inc. Proc. of the 6th Ann. Thermal and Chem. Storage Contractors' Rev. Meeting; p 52-56
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  • 9
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    Energy Remote Sensing Applications Projects at the NASA Ames Research Center (1982)
    In:  CASI
    Details
    Publication Date: 2014-09-09
    Description: The NASA Ames Research Center is active in energy projects primarily in the role of providing assistance to users in the solution of a number of problems related to energy. Data bases were produced which can be used, in combination with other sources of information, to solve spatially related energy problems. Six project activities at Ames are described which relate to energy and remote sensing. Two projects involve power demand forecasting and estimations using remote sensing and geographic information systems; two others involve transmission line routing and corridor analysis; one involves a synfuel user needs assessment through remote sensing; and the sixth involves the siting of energy facilities.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Marshall Univ. Proc. of the Natl. Conf. on Energy Resource Management, Vol. 2; p 543-551
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  • 10
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    Computer-aided Siting of Coal Conversion Facilities (1982)
    In:  CASI
    Details
    Publication Date: 2014-09-09
    Description: The value of using geographic information systems in site selection for coal conversion plants is discussed. Environmental and cultural factors and capital/operating costs were considered to determine site suitability.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Marshall Univ. Proc. of the Natl. Conf. on Energy Resource Management, Vol. 2; p 432-446
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