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The altitude region sampled by ground-based Doppler temperature measurements of the OI 15867 K emission line in aurorae

Authors :
Space Physics Research Laboratory, University of Michigan, 2455 Hayward, Ann Arbor, MI 48109-2143, U.S.A
Center for Atmospheric and Space Sciences and Space Dynamics Laboratory, Utah State University, Logan, UT 84322-3400, U.S.A.
Department of Space Physics and Atmospheric Sciences, Geophysical Institute, University of Alaska, Fairbanks, AK 99775-0800, U.S.A.
High Altitude Observatory, National Center for Atmospheric Research, Box 3000, Boulder, CO 80307, U.S.A.
Sica, R.J.
Rees, M.H.
Roble, Raymond Gerald
Hernandez, G.
Romick, G.J.
Space Physics Research Laboratory, University of Michigan, 2455 Hayward, Ann Arbor, MI 48109-2143, U.S.A
Center for Atmospheric and Space Sciences and Space Dynamics Laboratory, Utah State University, Logan, UT 84322-3400, U.S.A.
Department of Space Physics and Atmospheric Sciences, Geophysical Institute, University of Alaska, Fairbanks, AK 99775-0800, U.S.A.
High Altitude Observatory, National Center for Atmospheric Research, Box 3000, Boulder, CO 80307, U.S.A.
Sica, R.J.
Rees, M.H.
Roble, Raymond Gerald
Hernandez, G.
Romick, G.J.
Publication Year :
2006

Abstract

Measurements of atmospheric optical emissions with ground-based spectrometers give columnintegrated line profiles. Therefore, measurements from a single station are insufficient to infer the height of emission and, thus, the height of temperature and wind determinations. In aurorae the temperature measured by a ground-based spectrometer can be lower than similar measurements in the nightglow because the 15867 K (630.0 nm ; 1 K = 1 cm -1) emitting region may occur at lower altitudes. Temperature measurements obtained on an individual night from College, Alaska, illustrate this effect.

Details

Database :
OAIster
Notes :
En_US
Publication Type :
Electronic Resource
Accession number :
edsoai.ocn894056362
Document Type :
Electronic Resource

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