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    Comparison of radar-altimetry data over Greenland with surface topography derived from airborne laser altimetry

    Thomas, R. H. / Krabill, W. / Manizade, S. et al. | NTRS | 1994
    10 to 20 cm. Many of the aircraft flights were made along the ERS-1 'radar-altimeter footprint track' for a commissioning phase orbit ...
    Verlag: NASA National Aeronautics and Space Administration

    NASA Electric Vertical Takeoff and Landing (eVTOL) Aircraft Technology for Public Services – A White Paper

    Johnny T. Doo / Marilena D. Pavel / Arnaud Didey et al. | NTRS | 2021
    History has shown that our personal life is highly dependent on the technology that people have developed. A strategic scan of the ...
    Verlag: NASA National Aeronautics and Space Administration