The value of on-site sodar data in regional modeling

Conference · Thu Feb 01 04:00:00 EST 1990

OSTI ID:7001835

Nasstrom, J S; Baskett, R L ^[1]; Lange, R ^[2]

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1. EG and G Energy Measurements, Inc., Pleasanton, CA (USA)
2. Lawrence Livermore National Lab., CA (USA)

Three-dimensional dispersion modeling has many applications. At Lawrence Livermore National Laboratory, it is used both as a research tool and, by the Atmospheric Release Advisory Capability (ARAC), as an emergency response tool. ARAC uses a diagnostic three-dimensional regional modeling system built around the MATHEW (Mass-Adjusted Three-dimensional Wind field) and ADPIC (Atmospheric Dispersion Particle-In-Cell) models. Initializing these models requires meteorological observations to estimate the horizontal and vertical variation of the wind in the atmospheric boundary layer. These observations may be obtained from meteorological towers, tethersondes, rawinsondes, or remote sensing instruments. Standard twice-daily rawinsonde observations are readily available but may be outside the modeling domain and up to 12 hr old. Sodars such as the Doppler acousting sounder show promise in providing the necessary vertical wind inputs. If properly sited, one would expect that real-time soundings within the modeling domain would provide the best initialization of the upper level wind field. This paper attempts to assess the value of on-site vertical wind measurements to dispersion modeling in two different settings. One is the Savannah River, Georgia. The second is the Diablo Canyon Power Plant, California. 6 refs., 5 figs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-7405-ENG-48; AC08-88NV10617
• OSTI ID: 7001835
• Report Number(s): UCRL-JC-103279; CONF-9004180--1; ON: DE90009921
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540110*
ACOUSTIC RADAR
CALIFORNIA
DOPPLER EFFECT
EMERGENCY PLANS
FEDERAL REGION IX
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
ISOTOPE APPLICATIONS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MEASURING METHODS
METEOROLOGY
NATIONAL ORGANIZATIONS
NORTH AMERICA
RADAR
RANGE FINDERS
SAVANNAH RIVER PLANT
SULFUR COMPOUNDS
SULFUR FLUORIDES
THREE-DIMENSIONAL CALCULATIONS
TRACER TECHNIQUES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
USA
WIND