Accession Number:
ADA279482
Title:
Use of Wind Profiler Data in Short-Range Forecasting
Descriptive Note:
Scientific rept.
Corporate Author:
ATMOSPHERIC AND ENVIRONMENTAL RESEARCH INC CAMBRIDGE MA
Personal Author(s):
Report Date:
1994-01-15
Pagination or Media Count:
141.0
Abstract:
This report describes the results of the second year of a two-year study directed toward improving short-term forecasts and nowcasts through processing of satellite data year 1 and Doppler profiler data year 2. Data from the wind profiler demonstration network in the central US were used in a Barnes analysis scheme to produce hourly gridded wind fields and various derived kinematic quantities. The data were displayed in horizontal, vertical, and time- height cross sections. The utility of the profiler data, and profiler derived analyses, for short-term forecasting was demonstrated in a total of eight case studies, covering a wide range of atmospheric conditions. Among the derived quantities, the low-level vertical velocity derived from the horizontal convergence fields was found to be particularly useful for identifying areas of precipitation, while mid-level vorticity and vorticity advection was helpful in identifying quasi-geostrophic forcing mechanisms. Nowcasting, Wind Profiler, Objective analysis.
Descriptors:
- *WIND
- *METEOROLOGICAL DATA
- *WEATHER FORECASTING
- *METEOROLOGICAL SATELLITES
- VELOCITY
- ARTIFICIAL SATELLITES
- CONVERGENCE
- BAROMETRIC PRESSURE
- SEA LEVEL
- KANSAS
- FRONTS(METEOROLOGY)
- OKLAHOMA
- CONVECTION(ATMOSPHERIC)
- IOWA
- TEXAS
- HEIGHT
- ADVECTION
- ATMOSPHERIC PRECIPITATION
- STORMS
- CASE STUDIES
- COMPUTER PROGRAMS
- OCEAN SURFACE
- NETWORKS
Subject Categories:
- Meteorology