Results 121 to 130 of about 14,602 (246)

An experimental/analytical program to assess the utility of lidar for pollution monitoring [PDF]

open access: yes
The development and demonstration of lidar techniques for the remote measurement of atmospheric constituents and transport processes in the lower troposphere was carried out. Particular emphasis was given to techniques for monitoring SO2 and particulates,
Allen, R. J.   +3 more
core   +1 more source

Nd:Glass-Raman laser for water vapor dial [PDF]

open access: yes, 1986
A tunable solid-state Raman shifted laser which was used in a water vapor Differential Absorption Lidar (DIAL) system at 9400 A is described. The DIAL transmitter is based on a tunable glass laser operating at 1.06 microns, a hydrogen Raman cell to shift
Kagann, R. H.   +2 more
core   +1 more source

Temperature and humidity profiles in the atmosphere from spaceborne lasers: A feasibility study [PDF]

open access: yes, 1984
Computer simulations of the differential absorption lidar technique in a space craft for the purpose of temperature and humidity profiling indicate: (1) Current technology applied to O2 and H2O lines in the .7 to .8 micrometers wavelength band gives ...
Grassl, H., Schluessel, P.
core   +1 more source

A theoretical/experimental program to develop active optical pollution sensors [PDF]

open access: yes
Light detection and ranging (LIDAR) technology was applied to the assessment of air quality, and its usefulness was evaluated by actual field tests. Necessary hardware was successfully constructed and operated in the field.
Blais, R. N.   +2 more
core   +1 more source

Latent Heat Fluxes over Complex Terrain from Airborne Water Vapour and Wind Lidars [PDF]

open access: yes, 2009
Tropospheric profiles of water vapour and wind were measured with a differential absorption lidar (DIAL) and a heterodyne detection Doppler wind lidar collo-cated onboard the DLR Falcon research aircraft in the past two years.
Fix, Andreas   +3 more
core  

Towards More Precise Survey Photometry for PanSTARRS and LSST: Measuring Directly the Optical Transmission Spectrum of the Atmosphere

open access: yes, 2007
Motivated by the recognition that variation in the optical transmission of the atmosphere is probably the main limitation to the precision of ground-based CCD measurements of celestial fluxes, we review the physical processes that attenuate the passage ...
Benjamin R. Granett   +20 more
core   +2 more sources

Differential Absorption Lidar to Measure Sub-Hourly Variation of Tropospheric Ozone Profiles [PDF]

open access: yes, 2009
A tropospheric ozone Differential Absorption Lidar (DIAL) system, developed jointly by the University of Alabama at Huntsville and NASA, is making regular observations of ozone vertical distributions between 1 and 8 km with two receivers under both ...
Burris, John F.   +4 more
core   +1 more source

Frequency Control of Multi-Pulse 2-micron Laser Transmitter for Atmospheric Carbon Dioxide Measurement [PDF]

open access: yes
Laser sources with highly stabilized emission wavelength is of paramount importance for a long term atmospheric carbon dioxide (CO2) measurement from a space platform.
Antill, Charles W.   +7 more
core   +1 more source

Development of the Global Ozone Lidar Demonstrator (GOLD) Instrument for Deployment on the NASA Global Hawk [PDF]

open access: yes, 2010
A compact ozone (O3) and aerosol lidar system is being developed for conducting global atmospheric investigations from the NASA Global Hawk Uninhabited Aerial Vehicle (UAV) and for enabling the development and test of a space-based O3 and aerosol lidar ...
Browell, Edward V.   +9 more
core   +1 more source

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