Accession Number : ADA184164

Title :   Review of Inversion Techniques for Spaceborne Lidar Systems.

Descriptive Note : Rept. for Apr-Sep 86,

Corporate Author : OPTIMETRICS INC BURLINGTON MA

Personal Author(s) : Gallon,Derek W ; Hummel,John R

PDF Url : ADA184164

Report Date : Dec 1986

Pagination or Media Count : 89

Abstract : An examination of inversion techniques applicable for a spaceborne lidar system has been made. The purpose has been to recommend a technique that could be used with the lidar system under development by AFGL. In a Rayleigh atmosphere with no or minimal gaseous absorption, a power law relationship between backscattering and extinction exists in which k=1. In an atmosphere with aerosols and clouds, the assumption of a power law relationship is tenuous at best. An examination of the literature leads us to conclude that the power law relationship has no physical basis to support its extensive use. For any application probing different regions of the atmosphere and different types of aerosols, one cannot assume a single set of power law parameters for the entire atmosphere.

Descriptors :   *AEROSOLS, *ABSORPTION, *BACKSCATTERING, *EXTINCTION, *OPTICAL RADAR, CLOUDS, POWER, SPACEBORNE, INVERSION

Subject Categories : Optics
      Active & Passive Radar Detection & Equipment
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE