Results 1 to 10 of about 145,172 (145)
The effect of vibrationally excited nitrogen on the low-latitude ionosphere [PDF]
Annales Geophysicae, 1997 The first five vibrationally excited states of molecular nitrogen have been included in the Sheffield University plasmasphere ionosphere model. Vibrationally excited molecular nitrogen reacts much more strongly with atomic oxygen ions than ground ...
B. Jenkins +3 more
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Montreal Protocol's impact on the ozone layer and climate [PDF]
Atmospheric Chemistry and Physics, 2023 It is now recognized and confirmed that the ozone layer shields the biosphere from dangerous solar UV radiation and is also important for the global atmosphere and climate.
T. Egorova +7 more
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A study of atmospheric gravity waves and travelling ionospheric disturbances at equatorial latitudes [PDF]
Annales Geophysicae, 1997 A global coupled thermosphere-ionosphere-plasmasphere model is used to simulate a family of large-scale imperfectly ducted atmospheric gravity waves (AGWs) and associated travelling ionospheric disturbances (TIDs) originating at conjugate magnetic ...
R. L. Balthazor, R. J. Moffett
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Localized structure in the cusp and high-latitude ionosphere: a modelling study [PDF]
Annales Geophysicae, 1999 The ionospheric signature of a flux transfer event (FTE) seen in EISCAT radar data has been used as the basis for a modelling study using a new numerical model of the high-latitude ionosphere developed at the University of Sheffield, UK. The evolution
H. F. Balmforth +2 more
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Electron temperatures during rapid subauroral ion drift events [PDF]
Annales Geophysicae, 1998 Examples of data from DE-2 satellite instruments are presented. These illustrate the behaviour of plasma parameters in the F-region and adjacent topside ionosphere during rapid sub-auroral ion drift (SAID) events.
R. J. Moffett +4 more
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A study of the Joule and Lorentz inputs in the production of atmospheric gravity waves in the upper thermosphere [PDF]
Annales Geophysicae, 1997 First results of a modelling study of atmospheric gravity waves (AGWs) are presented. A fully-coupled global thermosphere-ionosphere-plasmasphere model is used to examine the relative importance of Lorentz forcing and Joule heating in the generation ...
R. L. Balthazor +2 more
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Eos, Transactions American Geophysical Union, 1991 Theoretical understanding of the upper atmosphere and the complex physical processes responsible for its composition, dynamics, and thermal behavior has improved to the point where reasonable three‐dimensional, time‐dependent models of the atmosphere above about 100 km exist.
Siscoe, George L., Killeen, Timothy L.
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Flood monitoring and damage assessment using water indices: A case study of Pakistan flood-2012
Egyptian Journal of Remote Sensing and Space Sciences, 2015 This paper uses Normalized Difference Water Index (NDWI) of McFeeters (1996), Water Index (WI) introduced by Rogers and Kearney (2004), referred to as Red and Short Wave Infra-Red (RSWIR) and WI suggested as the best by Ji et al.
Akhtar Ali Memon +3 more
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Nature, 1963 Physics of the Upper Atmosphere Edited by J. A. Ratcliffe. Pp. xi + 586. (New York: Academic Press, Inc.; London: Academic Press, Inc. (London), Ltd., 1960.) 14.50 dollars. Proceedings of the International Conference on the Ionosphere 1962 Held at Imperial College. Pp. ix + 528.
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Modelling high-latitude electron densities with a coupled thermosphere-ionosphere model [PDF]
Annales Geophysicae, 1996 A few of the difficulties in accurately modelling high-latitude electron densities with a large-scale numerical model of the thermosphere and ionosphere are addressed by comparing electron densities calculated with the Coupled Thermosphere-Ionosphere ...
J. Schoendorf +2 more
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