Vertical Extrapolation Model and Next Generation Radiometer Profile Comparisons and Artillery Accuracy

A comparison of the Vertical Extrapolation Model (VEM) and the Next Generation Radiometer (NGR) is presented in terms of the accuracy of their output temperature and density profiles, as well as how these profiles impact simulated artillery firings accuracy. The VEM is a software package that output...

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Bibliographic Details
Main Authors: Kirby, Stephen F, Blanco, Abel J, Measure, Edward M
Format: Report
Language:English
Subjects:
ACCURACY
Ammunition and Explosives
ATMOSPHERIC TEMPERATURE
Ballistics
BAROMETRIC PRESSURE
COMPARISON
COMPUTERIZED SIMULATION
EXTRAPOLATION
HOWITZERS
HUMIDITY
METEOROLOGICAL DATA
Meteorology
NGR(NEXT GENERATION RADIOMETER)
PROJECTILE TRAJECTORIES
RADIOMETERS
RADIOSONDES
VEM(VERTICAL EXTRAPOLATION MODEL)
WIND DIRECTION
WIND VELOCITY
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Summary:A comparison of the Vertical Extrapolation Model (VEM) and the Next Generation Radiometer (NGR) is presented in terms of the accuracy of their output temperature and density profiles, as well as how these profiles impact simulated artillery firings accuracy. The VEM is a software package that outputs a computer meteorological message containing wind direction, wind speed, virtual temperature, and pressure. The NGR is a component of the Meteorological Measuring Set - Prototype (MMS-P) profiler system being developed by the U.S. Army Research Laboratory (ARL) to measure temperature, wind, and atmospheric moisture using a variety of surface and satellite-based instruments. Simulated 155-mm Howitzer artillery firings were carried out at three ranges: 15, 20, and 22 km. Only virtual temperature and density effects were considered in these simulations and when all simulated results were averaged , the NGR output data always allowed the projectile to land within 38 m of the target. The VEM options allowed the projectile to land within 49 m of the target when firing at the 15 km range.