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Pre/post-strike atmospheric assessment system (PAAS)
The Pre/Post-Strike Atmospheric Assessment System was proposed to show the importance of local meteorological conditions in the vicinity of a site suspected of storing or producing toxic agents and demonstrate a technology to measure these conditions, specifically wind fields. The ability to predict the collateral effects resulting from an attack on a facility containing hazardous materials is crucial to conducting effective military operations. Our study approach utilized a combination of field measurements with dispersion modeling to better understand which variables in terrain and weather were most important to collateral damage predictions. To develop the PAAS wind-sensing technology, we utilized a combination of emergent and available technology from micro-Doppler and highly coherent laser systems. The method used for wind sensing is to probe the atmosphere with a highly coherent laser beam. As the beam probes, light is back-scattered from particles entrained in the air to the lidar transceiver and detected by the instrument. Any motion of the aerosols with a component along the beam axis leads to a Doppler shift of the received light. Scanning in a conical fashion about the zenith results in a more accurate and two-dimensional measurement of the wind velocity. The major milestones in the benchtop system …
Date:
February 3, 1997
Creator:
Peglow, S. G., LLNL & Molitoris, J. D., LLNL
Object Type:
Report
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 122, No. 5, Ed. 1 Thursday, July 3, 1997
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
July 3, 1997
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Canadian Record (Canadian, Tex.), Vol. 107, No. 27, Ed. 1 Thursday, July 3, 1997
Weekly newspaper from Canadian, Texas that includes local, state and national news along with extensive advertising.
Date:
July 3, 1997
Creator:
Ezzell, Nancy & Brown, Laurie Ezzell
Object Type:
Newspaper
System:
The Portal to Texas History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 82, No. 223, Ed. 1 Tuesday, June 3, 1997
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 3, 1997
Creator:
Diehl, Don
Object Type:
Newspaper
System:
The Gateway to Oklahoma History