Results 211 to 220 of about 76,429 (241)

Recent cloud trends and extremes reaffirm moderate climate sensitivity

Zelinka M, Myers T, Qin Y, Chao L, Klein S, Po-Chedley S, Ma P, Wall C, Ceppi P, Gettelman A.   +9 more
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Space weather impacts of the developing South Atlantic Anomaly

Macmillan, S., Beggan, C., Clarke, E., Hamilton, B., Thomson, A., Turbitt, C.   +5 more
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Aeronomic effects of the South Atlantic Anomaly

Reviews of Geophysics, 1976
Experimental and theoretical values for precipitated electron and proton fluxes in the area of the South Atlantic geomagnetic anomaly are reviewed. Observations of airglow which have been reported in the literature suggest that there is no enhancement in the Brazilian region, though there may be some in the southeastern part of the Atlantic area. There
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Spatial shift of the South Atlantic Anomaly

Journal of Geophysical Research, 1977
From analysis of the background measured by the EUV spectrometer aboard the German-U.S. satellites Aeros A and B the spatial distribution of unidentified particle fluxes received east of the South American coast could be established. From January 1973 through August 1974, in the height range 700–800 km the center of the configuration (near 30°S, 40°W ...
Gerhard Knoll, Klaus Holzer, Gerhard Schmidtke   +2 more
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Geoid anomalies over two South Atlantic fracture zones

Earth and Planetary Science Letters, 1990
Seasat altimetry profiles across the Falkland-Agulhas and Ascension fracture zones were examined for evidence of step-like geoid offsets predicted from thermal modeling of the lithosphere. Neither the plate nor the half-space model of lithospheric thermal evolution succeeds in predicting the variations in step height with age across the fracture zone ...
Adam P. Freedman, Barry Parsons
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South Atlantic anomaly filter for satellite UV observation

SPIE Proceedings, 2011
A South Atlantic Anomaly (SAA) filter has been developed to filter out large amounts of noise caused by high energy protons hitting onto the optical instrument focal plane when the satellite passes through the SAA region. The filter is based on the Principal Component Analysis (PCA)/Empirical Orthogonal Function (EOF) analysis.
Jianguo Niu, Lawrence E. Flynn
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Particle precipitation in the south atlantic geomagnetic anomaly

Planetary and Space Science, 1975
A simple model of the motion of charged particles in the closed-field-line magnetic field for L less than about 4.5 is used together with Injun 3 measurements of 40-keV precipitated electrons made in the northern hemisphere to estimate theoretically the extent of electron precipitation, the energy input, and the 3914-A airglow in the South Atlantic ...
D.G. Torr, Marsha R. Torr, James C.G. Walker, R.A. Hoffman   +3 more
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Airglow and the South Atlantic Geomagnetic Anomaly

Journal of Geophysical Research, 1961
Dessler [1959] suggested why the Capetown anomaly of the geomagnetic field should explain the ‘slot’ between the inner and outer zones of trapped radiation. For present considerations this anomaly is regarded as a part of the large negative anomaly (here called the South Atlantic anomaly) which extends from the South China Sea southeast across Brazil ...
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Radiation fields specific to the South Atlantic Anomaly

International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements, 1992
Abstract This paper contains the description of the spatial and temporal behavior of the radiation field inside the “MIR” space station during its crossing of the South Atlantic Anomaly (SAA) Region. It is shown that, even within the same area of the SAA, variations of the dose rate amplitude can exceed normal statistical fluctuations.
V.V. Benghin, N.A. Panova, V.M. Petrov, V.A. Shurshakov   +3 more
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Modeling energetic electron precipitation near the South Atlantic anomaly

Journal of Geophysical Research: Space Physics, 1999
A numerical simulation of electron pitch angle scattering in an asymmetric magnetic field environment has been applied to the Earth's inner radiation belt to obtain a global pattern of energetic electron precipitation. Under conditions of weak pitch angle scattering, which characterize the region L ≤ 2, the flux of electrons precipitated into the ...
Bob Abel, Richard M. Thorne
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