Accession Number : ADA299664

Title :   PRISM: A Parameterized Real-Time Ionospheric Specification Model, Version 1.5.

Descriptive Note : Final rept. 19 Feb 92-31 Mar 95,

Corporate Author : COMPUTATIONAL PHYSICS INC NEWTON MA

Personal Author(s) : Daniell, Robert E., Jr. ; Brown, Lincoln D.

PDF Url : ADA299664

Report Date : 31 MAY 1995

Pagination or Media Count : 77

Abstract : This report describes PRISM Version 1.5, a parameterized, real-time ionospheric specification model. PRISM was developed for use at the Air Force Space Forecast Center (50th Weather Squadron) at Falcon Air Force Base. PRISM consists of the theoretical climatology model, PIM (Parameterized Ionospheric Model), and an algorithm for updating PIM electron density profiles using ground based an spaced data. PIM is based on a set of diurnally reproducible runs of theoretical ionospheric models for broad range of geophysical conditions and for three seasons (June, December, and March/September). PRISM is capable of ingesting and utilizing data from digital or analog ionosondes, polarimeter or GPS based TEC measurements, in situ plasma measurements (electron density, electron temperature, ion composition, ion temperature, and plasma drift velocity), and auroral electron and ion precipitation measurements. PRISM 1.5 contains a number of improvements over PRISM 1.0, which was described in PL-TR-91-2299, including improved climatology, improved handling of in situ plasma data, and the ability to ingest and utilize TEC data.

Descriptors :   *IONOSPHERIC MODELS, DATA BASES, COMPUTER PROGRAM DOCUMENTATION, ALGORITHMS, GLOBAL, OPTIMIZATION, SPACE ENVIRONMENTS, REAL TIME, SPECIFICATIONS, PARAMETERS, PLASMAS(PHYSICS), ELECTRON DENSITY, FORECASTING, METEOROLOGICAL DATA, CHEMICAL COMPOSITION, ELECTRON ENERGY, SEASONAL VARIATIONS, AURORAE, GEOPHYSICS, CLIMATOLOGY, IONOSONDES, POLARIMETERS, ALTITUDE, F REGION, ELECTRON FLUX, E REGION, AIRGLOW, DIURNAL VARIATIONS, ION DENSITY.

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE