Stellar occultation measurements of molecular oxygen in the lower thermosphere
dc.contributor.author | Hays, Paul B. (Paul Byron) | en_US |
dc.contributor.author | Roble, Raymond Gerald | en_US |
dc.date.accessioned | 2006-04-17T16:41:38Z | |
dc.date.available | 2006-04-17T16:41:38Z | |
dc.date.issued | 1973-03 | en_US |
dc.identifier.citation | Hays, P. B., Roble, R. G. (1973/03)."Stellar occultation measurements of molecular oxygen in the lower thermosphere." Planetary and Space Science 21(3): 339-348. <http://hdl.handle.net/2027.42/33932> | en_US |
dc.identifier.uri | http://www.sciencedirect.com/science/article/B6V6T-46YC6DG-46/2/d0d169654951a1465b047580ec44650d | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/33932 | |
dc.description.abstract | Stellar ultraviolet light near 1500 A is attenuated in the Earth's upper atmosphere due to strong absorption in the Schumann-Runge continuum of molecular oxygen. The intensity of stars in the Schumann-Runge continuum region has been monitored by the University of Wisconsin stellar photometers aboard the OAO-2 satellite during occultation of the star by the Earth's atmosphere. These data have been used to determine the molecular oxygen number density profile at the occultation tangent point. The results of 14 stellar occultations obtained in low and middle latitudes are presented giving the night-time vertical number density profile of molecular oxygen in the 140-200 km region. In general, the measured molecular oxygen number density is about a factor of 2 lower than the number densities predicted by the CIRA 1965 model. Also, the number density at a given height appears to decrease with decreasing solar activity. Measurements taken at low latitudes during the August 1970 geomagnetic storm showed a decrease in the molecular oxygen number density at a given height several days after the peak of the storm followed by a slow recovery to pre-storm densities. | en_US |
dc.format.extent | 864184 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Elsevier | en_US |
dc.title | Stellar occultation measurements of molecular oxygen in the lower thermosphere | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Atmospheric, Oceanic and Space Sciences | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Departments of Aerospace Engineering, Meteorology and Oceanography, University of Michigan, Ann Arbor, Michigan 48105, U.S.A. | en_US |
dc.contributor.affiliationother | National Center for Atmospheric Research, Boulder, Colorado 80302, U.S.A. | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/33932/1/0000199.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/0032-0633(73)90032-9 | en_US |
dc.identifier.source | Planetary and Space Science | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.