High-altitude non-equilibrium infrared emission models. Final report 11 Jun 86-30 Nov 90

Technical Report · Fri Nov 30 04:00:00 EST 1990

OSTI ID:5730929

Wintersteiner, P P; Joseph, R A; Paboojian, A J

This report describes the development and implementation of models for predicting infrared emission in non-LTE regions of the Earth's atmosphere. Such models are used to stimulate particular atmospheric conditions, both quiescent and aurorally-distributed, in order to extract information from infrared radiance data sets and study the roles of different basic physical processes affecting the upper atmosphere. Specifically, developed is the first line-by-line radiative excitation model for the upper atmosphere, RAD, applied it to the calculation of populations of infrared-active states of CO{sub 2} and CO, simulated the conditions of the SPIRE experiments, and elucidated the role of atomic oxygen in exciting the CO{sub 2} bending modes. Auroral emissions are modeled and the Field Widened Interferometer data set analyzed using a method of spectral decomposition, and NO band heads identified in the lower-thermosphere emissions. Described are the mathematical procedures underlying the model, especially the RAD model, and the physical process incorporated in them.Results are presented from running the models.

• Research Organization: Arcon Corp., Waltham, MA (USA)
• OSTI ID: 5730929
• Report Number(s): AD-A-232503/3/XAB; CNN: F19628-86-C-0118
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AURORAE
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
DATA
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
EMISSION
EMISSION SPECTRA
INFORMATION
INFRARED RADIATION
INTERFEROMETERS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
SPECTRA