CHAWS (Chemical HAzard Warning System) user's guide: System description and standard operating procedures, Tooele Army Depot, south
- 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.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 7141652
- Report Number(s):
- UCID-21334; ON: DE88014186
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
510200 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
AEROSOL MONITORING
AIR POLLUTION MONITORING
CHEMICAL SPILLS
COMPUTER ARCHITECTURE
COMPUTER CALCULATIONS
COMPUTER CODES
D CODES
DETECTION
DIAGRAMS
ENVIRONMENTAL QUALITY
ENVIRONMENTAL TRANSPORT
FLOWSHEETS
HAZARDOUS MATERIALS
MASS TRANSFER
MATERIALS
MEASURING INSTRUMENTS
MONITORING
MONITORS
OPERATION