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  • 1
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    High temperature oxidation and ignition of metals (1955)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Keywords: GENERAL
    Type: NACA Conf. on Aerodyn. of High Speed Aircraft; p 547-558
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Dynamics Explorer 1 SOI images of the Antarctic ozone hole (1988)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: The Dynamics Explorer (DE) satellite carries an Auroral Imaging Package which contains filters designed for performing backscatter ultraviolet measurements to measure total column ozone in the Earth's middle and lower atmosphere. Measurements are obtained at 317.5 mm (to measure ozone absorption) and 360 nm (to measure scene reflectivity). In October 1985 and 1986, measurements were obtained near apogee of the Antarctic ozone hole. The only other high spatial resolution measurements were obtained from the Nimbus 7 Total Ozone Mapping Spectrometer (TOMS) experiment. In October 1987, the Dynamics Explorer apogee had precessed into the Northern Hemisphere preventing measurements of the ozone hole. However, measurements should be obtained from DE of the ozone hole in both 1988 and 1989. Considering that the Nimbus 7 TOMS instrument has long exceeded its expected lifetime, the DE Spin Scan Ozone Imager (SOI) experiment could easily play a crucial role in studies of the ozone hole over the next few years.
    Keywords: ENVIRONMENT POLLUTION
    Type: NASA, Goddard Space Flight Center, Polar Ozone Workshop. Abstracts; p 32-34
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Earth resources programs at the Langley Research Center. Part 2: Coastal zone oceanography program (1972)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The approaches used to develop the coastal zone oceanic research program are outlined, and activities in the areas of satellite application, estuaries, continental shelf and environmental modeling are briefly described.
    Keywords: GEOPHYSICS
    Type: 4th Ann. Earth Resources Program Rev., Vol. 1; 24 p
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    AN INVESTIGATION OF JET EFFECTS ON ADJACENT SURFACES (1955)
    In:  CASI
    Details
    Publication Date: 2019-05-10
    Keywords: FACILITIES, RESEARCH, AND SUPPORT
    Type: NACA-RM-L55E06
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Preliminary data for the 20 May 1974, simultaneous evaluation of remote sensors experiment (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Several remote sensors were simultaneously used to collect data over the tidal James River from Hopewell to Norfolk, Virginia. Sensors evaluated included the Multichannel-Ocean Color Sensor, multispectral scanners, and multispectral photography. Ground truth measurements and remotely sensed data are given. Preliminary analysis indicates that suspended sediment and concentrated industrial effluent are observable from all sensors.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-X-72676
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Broadband spectral photography of the James River (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: On May 28, 1974, a photographic mission from 5.3 kilometers altitude was flown over the James River from Norfolk to Hopewell. During the mission 252 photographs were exposed over the river. The photographs are divided into four simultaneously exposed groups with each group exposed through a different broadband optical filter. The four filters isolated blue-green, green, yellow, and near-infrared radiation from the water body. The document summarizes the mission photography in relation to flight altitude, sunglint, and photographic exposure.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-X-72689
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Effect of sun elevation upon remote sensing of ocean color over an acid waste dump site (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Photographic flights were made over an ocean acid waste dump site while dumping was in progress. The flights resulted in wide angle, broadband, spectral radiance film exposure data between the wavelengths of 500 to 900 nanometers for sun elevation angles ranging from 26 to 42 degrees. It is shown from densitometer data that the spectral signature of acid waste discharged into ocean water can be observed photographically, the influence of sun elevation upon remotely sensed apparent color can be normalized by using a single spectral band ratioing technique, and photographic quantification and mapping of acid waste through its suspended iron precipitate appears possible.
    Keywords: OCEANOGRAPHY
    Type: Annual Remote Sensing of Earth Resources Conference; Mar 27, 1978 - Mar 29, 1978; Tullahoma, TN
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Effects of detector threshold, location of the sun, and flight altitude upon spectral variations in remote sensing over water (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Photographic flights with Hasselblad cameras were flown on August 28, 1975, at altitudes from 2.66 and 5.3 kilometers over an ocean acid waste dump site while acid dumping was in progress. Repeated flights resulted in broadband spectral radiance data between the wavelengths of 500 to 900 nanometers for sun elevation angles that varied from 26 to 48 degrees, and at all sun azimuth angles over the range of off-nadir angles from 0 to 35 degrees. From film densitometer data, it is shown that before spectral variations in remotely sensed data can be used to quantify substances in water, the longer wavelength data must be above the detection level of the detector, radiance data between + or - 45 degrees in the direction of the sun must be avoided, and off-nadir camera correction factors must be applied to the observed radiance data.
    Keywords: ENVIRONMENT POLLUTION
    Type: Annual Remote Sensing of Earth Resources Conference; Mar 29, 1977 - Mar 31, 1977; Tullahoma, TN
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
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    Aerial photographic water color variations from pollution in the James River (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A photographic flight was made over the James River on May 17, 1977. The data show that, in general, James River water has very high sunlight reflectance. In the Bailey Bay area this reflectance is drastically reduced. Also shown is a technique for normalizing off-axis variations in radiance film exposure from camera falloff and uneven sunlight conditions to the nadir value. After data normalization, a spectral analysis is performed that identifies Bailey Creek water in James River water. The spectral results when compared with laboratory spectrometer data indicate that reflectance from James River water is dominated by suspended matter, while the substance most likely responsible for reduced reflectance in Bailey Creek water is dissolved organic carbon.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: American Congress on Surveying and Mapping and American Society of Photogrammetry, Fall Convention; Oct 15, 1978 - Oct 20, 1978; Albuquerque, NM
    Format: text
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    NASA TECHNICAL REPORTS
  • 10
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    The use of near infrared photography for aerial observation of phytoplankton blooms (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Keywords: GEOPHYSICS
    Type: Conference on Earth Resources Observation and Information Analysis Systems; Mar 26, 1973 - Mar 28, 1973; Tullahoma, TN
    Format: text
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    NASA TECHNICAL REPORTS
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