Modelling of time-dependention outflows at high geomagnetic latitudes
dc.contributor.author | Cannata, R. W. | en_US |
dc.contributor.author | Killeen, Timothy L. | en_US |
dc.contributor.author | Gombosi, Tamas I. | en_US |
dc.contributor.author | Burns, A. G. | en_US |
dc.contributor.author | Roble, Raymond Gerald | en_US |
dc.date.accessioned | 2006-04-07T20:28:01Z | |
dc.date.available | 2006-04-07T20:28:01Z | |
dc.date.issued | 1988 | en_US |
dc.identifier.citation | Cannata, R. W., Killeen, T. L., Gombosi, T. I., Burns, A. G., Roble, R. G. (1988)."Modelling of time-dependention outflows at high geomagnetic latitudes." Advances in Space Research 8(8): 89-92. <http://hdl.handle.net/2027.42/27472> | en_US |
dc.identifier.uri | http://www.sciencedirect.com/science/article/B6V3S-472C6V6-2J/2/2f9a6a694dc5ef132c8812528d9fc9fb | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/27472 | |
dc.description.abstract | In a recent paper, Gombosi and Killeen (1987) applied a highly parameterized thermospheric Joule heat source as a boundary condition in the time-dependent, ion outflow model of Gombosi et al. (1985) to show that episodic ion outflows at high geomagnetic latitudes could result from low altitude ion frictional heating. To delineate more realistically the time-dependent thermosphere/ionosphere environment, we extend this previous study by using output from the Thermospheric General Circulation Model (TGCM) of the National Center for Atmospheric Research (NCAR) as input to the same hydrodynamic polar wind code for a set of case studies which follow the thermal forcing history of individual, ionospheric, convecting flux tubes. Using derived, time-varying frictional heating rates such as those experienced by these flux tubes, we show that transverse ion heating below 500 km can provide sufficient energy to perturb the velocity distribution of the major ion species. The time-dependent flux tube heating results in localized regions of field-aligned O+ upflows. These results demonstrate that localized heating, generated from thermosphere/ionosphere interactions, may initiate heavy ion upwellings which, through further energization at higher altitudes, could evolve into the transient ion outflows as seen by the Dynamics Explorer 1 satellite. | en_US |
dc.format.extent | 531063 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 | Modelling of time-dependention outflows at high geomagnetic latitudes | 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.hlbsecondlevel | Aerospace Engineering | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Space Physics Research Laboratory, Department of Atmospheric, Oceanic, and Space Sciences, The University of Michigan, Ann Arbor, MI 48109-2143, U.S.A. | en_US |
dc.contributor.affiliationum | Space Physics Research Laboratory, Department of Atmospheric, Oceanic, and Space Sciences, The University of Michigan, Ann Arbor, MI 48109-2143, U.S.A. | en_US |
dc.contributor.affiliationum | Space Physics Research Laboratory, Department of Atmospheric, Oceanic, and Space Sciences, The University of Michigan, Ann Arbor, MI 48109-2143, U.S.A. | en_US |
dc.contributor.affiliationum | Space Physics Research Laboratory, Department of Atmospheric, Oceanic, and Space Sciences, The University of Michigan, Ann Arbor, MI 48109-2143, U.S.A. | en_US |
dc.contributor.affiliationother | High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO 80307, U.S.A. | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/27472/1/0000513.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/0273-1177(88)90267-0 | en_US |
dc.identifier.source | Advances in Space Research | 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.