CHAWS (Chemical HAzard Warning System) user's guide: System description and standard operating procedures, Pine Bluff Arsenal

Technical Report · Mon Feb 29 23:00:00 EST 1988

OSTI ID:7126517

Shinn, J H; Novo, M G ^[1]

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1. eds.

The Chemical HAzard Warning System (CHAWS) has been designed to collect meteorological data and to display, in real time, hazardous chemical dispersion as a result of an accidental release. Meteorological sensors are placed strategically around each installation and are used to calculate direction and hazard distance for the release. These data are then graphically displayed on a computer screen showing a site map and arrows depicting the release direction and distance traveled. The objectives of CHAWS are as follows: to determine the trajectory of the center of mass of released material from the measured wind field; to calculate the dispersion based on the measured lateral turbulence intensity (sigma theta); to determine the height of the mixing zone by measurement of the inversion height and wind profiles up to an altitude of about 1 km; to archive meteorological data for potential use in climatological descriptions for emergency planning; to archive air-quality data for preparation of compliance reports; and to provide access to the data for realtime hazard analysis purposes. The system is discussed.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7126517
• Report Number(s): UCID-21333; ON: DE88014313
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
CHEMICAL SPILLS
COMPUTER CALCULATIONS
COMPUTER CODES
COMPUTER NETWORKS
DATA ACQUISITION
DIFFUSION
DOCUMENT TYPES
HAZARDOUS MATERIALS
MANUALS
MATERIALS
METEOROLOGY
MILITARY FACILITIES
NUMBER CODES
REAL TIME SYSTEMS
S CODES
W CODES
WEATHER
WIND