Results 201 to 210 of about 294,690 (247)
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International Journal of Remote Sensing, 1986
Abstract Through an extensive literature review the results of previous lidar investigations in Australia, Canada, Sweden, the U.S.A. and West Germany have been evaluated. Based on these findings estimates are given for the anticipated depth capability, measurement accuracy and operational constraints for a laser system in U.K. waters. Consideration is
K. MUIRHEAD, A. P. CRACKNELL
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Abstract Through an extensive literature review the results of previous lidar investigations in Australia, Canada, Sweden, the U.S.A. and West Germany have been evaluated. Based on these findings estimates are given for the anticipated depth capability, measurement accuracy and operational constraints for a laser system in U.K. waters. Consideration is
K. MUIRHEAD, A. P. CRACKNELL
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Airborne LiDAR for DEM generation: some critical issues [PDF]
Progress in Physical Geography, 2008 Airborne LiDAR is one of the most effective and reliable means of terrain data collection. Using LiDAR data for DEM generation is becoming a standard practice in spatial related areas.
Liu, Xiaoye
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Airborne lidar measurements for Cryosat validation
IEEE International Geoscience and Remote Sensing Symposium, 2003Airborne laser measurements provide a detailed capability to measure the geometry of an ice surface with an accuracy of 5-25 cm over a large range of spatial scales (1 m to 100's of km), either as along-track profiles or scanning lidar swath mapping transects, thus providing a useful calibration and validation tool for Cryosat measurements.
René Forsberg +2 more
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Airborne cw-Doppler lidar ADOLAR
Conference Proceedings Second Topical Symposium on Combined Optical-Microwave Earth and Atmosphere Sensing, 2002During the last 10 years the DLR container LDA (Laser Doppler Anemometer) was used for many wind related measurements in the atmospheric boundary layer (Kopp et al., 1984). Based on the experiences on airborne cw-Doppler lidar was developed and tested. Wind field measurements in the boundary layer and signal strength studies were performed. >
Werner, Ch., Rahm, S.
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Robust watermarking of airborne LiDAR data
Multimedia Tools and Applications, 2018This paper presents a novel robust approach developed specially for watermarking airborne LiDAR data, which consist of a large cloud of geo-referenced points and has some unique characteristics. The approach consists of the following steps: (1) Defining the marker circular areas, in which the watermark bit will be embedded; (2) Dividing the marker ...
Bogdan Lipus, Borut Zalik
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Airborne Lidar Measurements of Aerosols
Optical Remote Sensing of the Atmosphere, 1993Aerosols are now recognized as having a significant impact on global climate. Aerosols affect climate directly via scattering and absorption, and indirectly through their effect on cloud properties, generally acting in a manner that counteracts the warming induced by greenhouse gases such as CO2[Charlson et al., 1992; Fouquart and Isaka, 1992; Penner ...
William B. Grant +3 more
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Airborne Doppler lidar wind measurements
Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505), 2000Summary form only given. Study of the atmospheric wind field is fundamental for the understanding and prediction of the weather development. To overcome the spatial limitations of ground based observations, airborne measurements are recognised as excellent tools to study atmospheric processes.
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Airborne cw Doppler Lidar - ADOLAR
Coherent Laser Radar, 1995For the airborne measurement of the wind field, knowledge of the exact velocity and orientation of the plane is mandatory. Any small deviation in these parameter will cause an error in the estimation of the wind field. The conical scanning airborne cw CO2 Doppler lidar ADOLAR has been designed to gain experience concerning the correction of the ...
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Airborne Lidar in Archaeology: Overview and a Case Study
2013Airborne laser scanning (ALS) is an optical measurement technique for obtaining high-precision information about the Earth's surface including basic terrain mapping (Digital terrain model, bathymetry, corridor mapping), vegetation cover (forest assessment and inventory), coastal and urban areas.
Masini, N.a, Lasaponara, R.b
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Airborne Lidar Measurements Of Aerosols
SPIE Proceedings, 1988The airborne lidar system of the Aerosol Research Branch, NASA Langley Research Center, has been used since 1978 to study the behavior of the stratospheric aerosol on a global scale. The system, in its current configuration, can operate at a wavelength of either 0.6943 pm (ruby laser) or 0.530 μm (frequency doubled Nd:YAG laser).
M P. McCormick, G S. Kent
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