Zobrazeno 1 - 10
of 66
pro vyhledávání: '"W. R. Sheldon"'
Publikováno v:
Advances in Space Research. 35:1492-1495
We present Monte Carlo simulations of the energy deposited by energetic electrons from the outer Van Allen belt precipitating into the atmosphere below 100 km. Consideration of the possible mechanism for the precipitation of outer belt electrons sugg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcff5431cfd07acd496658d55cee22e5
https://doi.org/10.1016/j.asr.2005.04.001
https://doi.org/10.1016/j.asr.2005.04.001
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 66:1035-1045
The intense event of highly relativistic electron (HRE) precipitation of May 1992 has been analyzed using data from ground-based observations (riometers and VLF phase measurements). Special attention was given to some features of this event observed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9dfdcf69a936f81f798a1b27758ef61c
https://doi.org/10.1016/j.jastp.2004.03.014
https://doi.org/10.1016/j.jastp.2004.03.014
Autor:
W. R. Sheldon, J. R. Benbrook
Publikováno v:
Advances in Space Research. 34:1806-1810
The middle atmosphere at the foot of the geomagnetic field lines of the outer belt of trapped radiation (about L =4) is a region of dramatically variable electron precipitation. Consequently, electrodynamic phenomena in the atmosphere of this region
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38bc56358bc90b9684c8b60bb1f331e2
https://doi.org/10.1016/j.asr.2003.06.033
https://doi.org/10.1016/j.asr.2003.06.033
Autor:
Alfred R. Hopkins, M. H. Proffitt, Darin W. Toohey, J. R. Benbrook, Adrian F. Tuck, K. K. Kelly, Donald E. Hagen, Erik Richard, W. T. Rawlins, Philip D. Whitefield, Martin N. Ross, W. R. Sheldon
Publikováno v:
Geophysical Research Letters. 27:2209-2212
Ozone, chlorine monoxide, methane, and submicron particulate concentrations were measured in the stratospheric plume wake of a Delta II rocket powered by a combination of solid (NH4ClO4/Al) and liquid (LOX/kerosene) propulsion systems. We apply a sim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::587f629cc220c226b0d685b23b824899
https://doi.org/10.1029/1999gl011159
https://doi.org/10.1029/1999gl011159
Autor:
R. F. Meads, W. R. Sheldon, J. R. Benbrook, John O. Ballenthin, R. B. Gosselin, P. F. Zittel, Martin N. Ross
Publikováno v:
Geophysical Research Letters. 24:1755-1758
The concentration of Cl2 in the stratospheric exhaust plume of a Titan IV launch vehicle was measured with a neutral mass spectrometer carried on a WB-57F aircraft at 18.9 km altitude. Twenty nine minutes after a twilight Titan IV launch, the mean Cl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::192575f3c04d72c5d7c15bf1b3ffdfd4
https://doi.org/10.1029/97gl01592
https://doi.org/10.1029/97gl01592
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 59:1-7
In situ measurements of atmospheric ozone at an altitude of 40 km reveal a significant depletion event (~ 50%) coincident with the transit of the dawn terminator. The event developed in about 20 min and then recovered in about half that time. Simulta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6d618a16972d9555979b1dce0a6da4b
https://doi.org/10.1016/s1364-6826(96)00055-7
https://doi.org/10.1016/s1364-6826(96)00055-7
Publikováno v:
Origins of Life and Evolution of the Biosphere. 27:413-420
Now that extrasolar planets have been found, it is timely to ask whether some of them might be suitable for life. Climatic constraints on planetary habitability indicate that a reasonably wide habitable zone exists around main sequence stars with spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f3d2c757bcaf7c5093ad45649324304
https://doi.org/10.1023/a:1006596806012
https://doi.org/10.1023/a:1006596806012
Publikováno v:
Geophysical Research Letters. 21:1243-1246
During the European Arctic Stratospheric Ozone Experiment (EASOE) the Arctic stratosphere was investigated with a set of instruments flown on a CNES high altitude balloon from ESRANGE, northern Sweden (67 deg 52 minutes N, 21 deg 4 minutes E) on Janu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d3896623514071379cbbe8f266372e7
https://doi.org/10.1029/93gl03352
https://doi.org/10.1029/93gl03352
Publikováno v:
Applied optics. 35(30)
We developed a rocket payload to perform in situ measurements of atmospheric ozone at the University of Houston. The ozone detector is a dual-beam UV-absorption photometer that uses the 253.7-nm radiation from a low-pressure mercury-vapor lamp to ill
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::860298fb1529d1bb5e3b4f79ef89aa1b
https://pubmed.ncbi.nlm.nih.gov/21127616
https://pubmed.ncbi.nlm.nih.gov/21127616
Autor:
W. R. Sheldon
Publikováno v:
Journal of Atmospheric and Terrestrial Physics. 53:17-23
A model in which a partially filled drift loss cone plays a prominent role is presently used to investigate relativistic electron data obtained by the Defense Meteorological Satellite Program spacecraft in the outer belt region. The good agreement ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1684028ad600fd5e32cbba1cbc69c3ac
https://doi.org/10.1016/0021-9169(91)90016-z
https://doi.org/10.1016/0021-9169(91)90016-z