Terrestrial laser scan error in the presence of dense ground vegetation [PDF]
, 2011 Terrestrial Laser Scan (TLS) data are seeing increasing use in geology, geomorphology, forestry and urban mapping. The ease of use, affordability and operational flexibility of TLS suggests that demand for it is likely to increase in large scale mapping ...
Fotheringham, Stewart +5 more
core +2 more sources
Satellite Remote Sensing of the Greenland Ice Sheet Ablation Zone: A Review
Remote Sensing, 2019 The Greenland Ice Sheet is now the largest land ice contributor to global sea level rise, largely driven by increased surface meltwater runoff from the ablation zone, i.e., areas of the ice sheet where annual mass losses exceed gains.
Matthew G. Cooper, Laurence C. Smith
doaj +1 more source
Laser altimetry measurements from aircraft and spacecraft [PDF]
Proceedings of the IEEE, 1989 The techniques involved in the design and application of laser altimeter instruments are reviewed, including a description of the instrument subsystems required for the range and waveform measurements. Laser pulse transmitters based on the relatively novel technology of diode-pumped solid-state lasers are considered.
openaire +2 more sources
The Reference Elevation Model of Antarctica [PDF]
The Cryosphere, 2019 The Reference Elevation Model of Antarctica (REMA) is the first continental-scale digital elevation model (DEM) at a resolution of less than 10 m.
I. M. Howat +5 more
doaj +1 more source
Influence of a pulsed laser regime on surface finish induced by thedirect metal deposition process on a Ti64 alloy [PDF]
, 2014 tThe direct metal deposition (DMD) laser technique is a free-form metal deposition process, which allowsgenerating a prototype or small series of near net-shape structures.
GORNY, Cyril +7 more
core +1 more source
Measurement of laser absorptivity for operating parameters characteristic of laser drilling regime [PDF]
, 2008 Publisher version : http://iopscience.iop.org/0022-3727/41/15/155502/Laser drilling in the percussion regime is commonly used in the aircraft industry to drill sub-millimetre holes in metallic targets.
SCHNEIDER, Matthieu +3 more
core +1 more source
Remote Sensing, 2011 We demonstrate the efficacy of a commercial portable 2D laser scanner (operating at a wavelength close to 1,000 nm) deployed from a fixed-wing aircraft for measuring the sea surface topography and wave profiles over coastal waters.
Jorg Hacker +2 more
doaj +1 more source
Temperature measurement inside and near the weld pool during laser welding [PDF]
, 1999 The work in this article deals with the measurement of temperature fields inside and near the weld pool during laser welding. The laser source used for this study is a 7.5 kW CO2 laser, and the welded material is a UNS N08904 austenitic stainless steel ...
J. Quesada +9 more
core +1 more source
Positioning Improvement for Spaceborne Laser Footprint Based on Precisely Terrain Data [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesSpaceborne laser altimetry represents a novel active remote sensing technology applicable to earth observation, which together with imaging spectroscopy and synthetic aperture radar as a core technology for data acquisition in the earth observation ...
C. Xu +6 more
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Brief communication "Importance of slope-induced error correction in volume change estimates from radar altimetry" [PDF]
The Cryosphere, 2012 In deriving elevation change rates (d<I>H</I>/d<I>t</I>) from radar altimetry, the slope-induced error is usually assumed to cancel out in repeat measurements.
R. T. W. L. Hurkmans +2 more
doaj +1 more source