CHAWS (Chemical HAzard Warning System) user's guide: System description and standard operating procedures, Edgewood area, Aberdeen Proving Ground
- 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. To provide access to the data for realtime hazard analysis purposes. The system and programs are described.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6841384
- Report Number(s):
- UCID-21335; ON: DE88014312
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ACCIDENTS
AIR QUALITY
CHEMICAL SPILLS
COMPUTER CALCULATIONS
COMPUTER CODES
COMPUTER GRAPHICS
COMPUTER NETWORKS
D CODES
DATA ACQUISITION
DIFFUSION
DOCUMENT TYPES
ENVIRONMENTAL QUALITY
H CODES
HAZARDOUS MATERIALS
MANUALS
MATERIALS
METEOROLOGY
MILITARY FACILITIES
MIXING
R CODES
REAL TIME SYSTEMS
S CODES
TURBULENCE
W CODES
WEATHER
WIND