CLOUDS.

Abstract

This report is an in-depth Users Manual for the ANSI FORTRAN computer program CLOUDS. CLOUDS is designed in two major blocks: cloud field generation and cloud-free line-of-sight (CFLOS) calculation. The cloud field generation block models observed cloud fields using rotated truncated ellipsoids and rotated eliptical cylinders. The user can specify an overall (total) cloud cover or cloud cover by base height, dimensions of the clouds to be used, and fraction of clouds to be cylinders. When the cloud field has been completed, two types of plots (two-dimensional printer plots and three-dimensional META Plots) can be generated in order to view the modeled cloud field. The CFLOS calculation block generates trajectory data using either direct intercept or a chase model. Alternately, a trajectory with one defender and one to four aggressors generated by the Trajectory Analysis Program (TAP) can be used. Instantaneous CFLOS and CFLOS over discrete time intervals are calculated between the defender and each aggressor. The trajectories are rotated some user specified number of times within the stationary cloud field and the CFLOS data are recalculated. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1979
Accession Number
ADA078363

Entities

People

  • Mark K. Seager

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Cyber
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Cloud Cover
  • Computer Programming
  • Computer Programs
  • Computers
  • Data Sets
  • Debugging
  • Demographic Cohorts
  • Differential Equations
  • Equations
  • Geometry
  • Government Procurement
  • Ground Based
  • Three Dimensional
  • Time Intervals
  • Trajectories
  • Two Dimensional

Readers

  • Climatology
  • Computer Science.
  • Control Systems Engineering.