A Revisit of the Field Artillery's Time-Space Wind Variability Equation

Abstract

The U.S. Army has derived artillery accuracy error budgets based on a time & space ballistic wind variance formula. The wind algorithm uses a midlatitude wind profile to derive the expected ballistic wind component variance. This time variability equation is reevaluated using 190 hourly upper air profiler soundings collected over Platteville, CO, representing 8 days of diverse weather conditions. Comparisons between the computed ballistic wind time variability and the equation estimated variability reveal the formula to be an unbiased estimator with 1 kn precise agreement at a staleness of 1 h. The equation accuracy ranges from 1.5 to 3.0 ballistic kn depending on a time staleness of 2 to 4 h, ballistic line, and season.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1998
Accession Number
ADA343172

Entities

People

  • Abel J. Blanco
  • Patrick A. Haines

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Agreements
  • Algorithms
  • Artillery
  • Artillery Fire
  • Atmospheric Sciences
  • Battlefields
  • Data Sets
  • Equations
  • Estimators
  • Information Science
  • Measurement
  • Military Research
  • Standards
  • Statistics
  • Terrain
  • Time Intervals

Readers

  • Atmospheric Science/Meteorology
  • Calculus or Mathematical Analysis
  • Regression Analysis.

Technology Areas

  • Space