Large-scale optical mapping of the ionosphere. Environmental research papers
Technical Report
·
OSTI ID:6687904
A new instrument for all sky, spectrophotometric imaging of aurora and airglow was installed in the Air Force Geophysics Laboratory's Airborne Ionospheric Observatory. Initial observations of equatorial and near-equatorial 6300 angstroms O I airglow show the existence of north-south aligned regions of airglow depletion. These dark bands often extend more than 1200 km in the north-south direction and 50 to 200 km in the east-west direction. Simultaneous airborne ionospheric soundings indicate that these regions of airglow depletion are characterized by an increase in the virtual height of the F-layer. A simple model of field-aligned electron density depletion in the bottomside of the F-layer explains both the airglow observations and the ionospheric soundings. Initial auroral zone measurements show the structure and dynamics of the subvisual auroras in the noon sector that result from dayside precipitation. UHF satellite-to-aircraft propagation through the F-region auroras result in amplitude scintillations, both in the noon and midnight local time sectors. (Author)
- Research Organization:
- Air Force Geophysics Lab., Hanscom AFB, MA (USA)
- OSTI ID:
- 6687904
- Report Number(s):
- AD-A-051122; AFGL-TR-77-0236; AFGL-ERP-611
- Country of Publication:
- United States
- Language:
- English
Similar Records
Coordinated airborne and satellite measurements of equatorial plasma depletions
Airborne studies of equatorial F layer ionospheric irregularities
F-layer and 6300-A measurements in the day sector of the auroral oval
Journal Article
·
Tue Nov 30 23:00:00 EST 1982
· J. Geophys. Res.; (United States)
·
OSTI ID:6212954
Airborne studies of equatorial F layer ionospheric irregularities
Journal Article
·
Mon Sep 01 00:00:00 EDT 1980
· J. Geophys. Res.; (United States)
·
OSTI ID:5003050
F-layer and 6300-A measurements in the day sector of the auroral oval
Journal Article
·
Sun Jul 01 00:00:00 EDT 1973
· J. Geophys. Res., v. 78, no. 19, pp. 3848-3856
·
OSTI ID:4384463
Related Subjects
640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AIRCRAFT
AIRGLOW
AURORAE
AURORAL ZONES
CHARGED-PARTICLE PRECIPITATION
CRYOGENIC FLUIDS
DISTRIBUTION
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
ELECTRON PRECIPITATION
ELEMENTS
F REGION
FLUIDS
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
IONOSPHERE
MAPS
MHZ RANGE
MHZ RANGE 100-1000
NONMETALS
OXYGEN
PLANETARY IONOSPHERES
RADIATIONS
RADIOWAVE RADIATION
SCINTILLATIONS
SPATIAL DISTRIBUTION
VISIBLE RADIATION
WAVE PROPAGATION
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AIRCRAFT
AIRGLOW
AURORAE
AURORAL ZONES
CHARGED-PARTICLE PRECIPITATION
CRYOGENIC FLUIDS
DISTRIBUTION
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
ELECTRON PRECIPITATION
ELEMENTS
F REGION
FLUIDS
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
IONOSPHERE
MAPS
MHZ RANGE
MHZ RANGE 100-1000
NONMETALS
OXYGEN
PLANETARY IONOSPHERES
RADIATIONS
RADIOWAVE RADIATION
SCINTILLATIONS
SPATIAL DISTRIBUTION
VISIBLE RADIATION
WAVE PROPAGATION