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  • EARTH RESOURCES AND REMOTE SENSING  (5)
  • 1
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    Photosynthetic accessory pigments - Evidence for the influence of phycoerythrin on the submarine light field (1990)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: Upwelled water-leaving spectral radiances and the submarine light-field source are theorized to have the physical scattering and absorption effects of photosynthetic accessory pigments. A laser is employed to induce phycoerythrin pigment fluorescence, and the presence of the photosynthetic accessory pigment is measured in oceanic waters with a spectral fluorescence method. Experimental data from active-passive correlation spectroscopy demonstrate that water-leaving spectral radiances of about 600 nm are highly correlated with phycoerythrin pigment fluorescence. Because the data on the phycoerythrin and chlorophyll fluorescences are entered randomly in the correlation the results are considered unambiguous. An estimate of the photopigment is derived that agrees with measurements of its laser-induced fluorescence.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Remote Sensing of Environment (ISSN 0034-4257); 34; 19-35
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Applying kinematic GPS to airborne laser remote sensing (1991)
    In:  Other Sources
    Details
    Publication Date: 2019-01-25
    Description: Results from the application of differential carrier phase tracking of the GPS constellation of satellites to precise positioning of an aircraft are presented. These aircraft positions are utilized in the process of providing geodetic quality position information for airborne laser footprint location on the surface of the earth. The combination of these techniques provides a rapid, cost effective means for collecting geodetic and topographic data, including sea surface topography. Operational techniques and constraints, along with result from recently collected data, are presented.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA, Washington, 4th Airborne Geoscience Workshop; p 195
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Airborne oceanographic lidar participation in the US Joint Global Ocean Flux Study (JGOFS) (1991)
    In:  Other Sources
    Details
    Publication Date: 2019-01-25
    Description: The U.S. JGOFS is part of a major international field experiment which the National Science Foundation (NSF) is conducting during the decade. It will combine ship and aircraft data collected in both the Atlantic and Pacific oceans. The primary data collected by the Airborne Oceanographic Lidar (AOL) is laser-induced chlorophyll fluorescence together with the concurrent laser-induced water Raman backscatter and phycoerythrin fluorescence. Passive solar-induced up-welling radiances and down-welling solar irradiance are also acquired. Results from the 1989 Atlantic mission as well as plans for use of the new long-range Wallops P-3 during the upcoming Equatorial Pacific mission are presented.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA, Washington, 4th Airborne Geoscience Workshop; p 175
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Applying kinematic GPS to airborne laser remote sensing (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-27
    Description: Results from the application of differential carrier phase tracking of the Global Positioning System (GPS) constellation of satellites to precise positioning (sub-10 cm) of an aircraft are presented. These aircraft positions are utilized in the process of providing geodetic quality position information for airborne laser 'footprint' locations on the surface of the earth. The combination of these techniques provides a rapid, cost effective means for collecting geodetic and topographic data, including sea surface topography. Operational techniques and constraints, along with results from recently collected data, are presented.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Intl. Technical Meeting of the Institute of Naviagation Satellite Div.; Sept. 27-29, 1989; Colorado Springs, CO; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Airborne lidar experiments at the Savannah River Plant (1985)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The results of remote sensing experiments at the Department of Energy (DOE) Savannah River Nuclear Facility utilizing the NASA Airborne Oceanographic Lidar (AOL) are presented. The flights were conducted in support of the numerous environmental monitoring requirements associated with the operation of the facility and for the purpose of furthering research and development of airborne lidar technology. Areas of application include airborne laser topographic mapping, hydrologic studies using fluorescent tracer dye, timber volume estimation, baseline characterization of wetlands, and aquatic chlorophyll and photopigment measurements. Conclusions relative to the usability of airborne lidar technology for the DOE for each of these remote sensing applications are discussed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-4007 , NAS 1.15:4007 , DOE/SR/14075-1
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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