Zobrazeno 1 - 10
of 55
pro vyhledávání: '"A. R. Lienert"'
Publikováno v:
Applied Spectroscopy. 61:624-629
This report describes a mobile Raman lidar system that has been developed for spectral measurements of samples located remotely at ranges of hundreds of meters. The performance of this system has been quantitatively verified in a lidar calibration ex
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 61:2281-2287
A remote Raman system has been developed utilizing a 532 nm pulsed laser and gated intensified charged couple device (ICCD) detector in the oblique geometry. When the system is set for 50 m sample distance it is capable of measuring Raman spectra of
Autor:
T. L. Anderson, Vladimir N. Kapustin, Antony D. Clarke, Steven G. Howell, D. S. Covert, Barry R. Lienert, K. Moore, Sarah J. Masonis
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 20:1362-1374
The authors’ participation in the Shoreline Environment Aerosol Study (SEAS) involved measurements focused on the coastal aerosol size distribution and related optical measurements, including aerosol light scattering, visibility, and remote sensing
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 20:1403-1410
It is shown that genetic inversions can be used to recover lognormal aerosol size distributions from multiangle optical scattering cross-section data measured by a polar nephelometer at a wavelength of 0.532 μm. The inversions can also be used to re
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 20:1375-1387
Scanning lidar measurements were carried out during the Shoreline Environment Aerosol Study (SEAS) experiment (19‐30 April 2000) to characterize the aerosol scattering fields in the coastal marine boundary layer at Bellows Beach on the southeast si
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 19:1873-1877
The characteristics of a small, lightweight portable lidar system for measuring aerosol (Mie) scatter at wavelengths of 1064 and 532 nm are described. It uses a 20-Hz Nd:YAG pulsed laser as a source and a 12.7-cm-diameter telescope as a receiver. By
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 19:654-657
A high-speed logarithmic amplifier that has been successfully used to improve the dynamic range of a scanning lidar is described. The amplifier incorporates built-in baseline correction and calibration circuits, allowing for real-time offset and temp
Autor:
David E. Bates, Shiv K. Sharma, John N. Porter, Anupam K. Misra, Charles E. Helsley, Barry R. Lienert
Publikováno v:
Journal of Raman Spectroscopy. 43:165-167
A scanning standoff Raman spectroscopy system has been developed to measure the molecular species of distant samples in two dimensions. Computer software is used to control the scanner pan and tilt angles, and Raman measurementsare collected ofthedis
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 17:1445-1454
Sea salt aerosol concentrations in the clean marine boundary layer can be considered spatially homogeneous when averaged over space and time. Using this assumption, horizontal and slant lidar measurements are carried out at a Hawaii coastal site allo