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Journal articleStark G, Smith PL, Rufus J, et al., 1999,
High-resolution photoabsorption cross-section measurements of SO<sub>2</sub> at 295 K between 198 and 220 nm
, JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, Vol: 104, Pages: 16585-16590, ISSN: 2169-9097- Author Web Link
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- Citations: 39
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Journal articleLucek EA, Dunlop MW, Balogh A, et al., 1999,
Mirror mode structures observed in the dawn-side magnetosheath by Equator-S
, GEOPHYSICAL RESEARCH LETTERS, Vol: 26, Pages: 2159-2162, ISSN: 0094-8276- Author Web Link
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- Citations: 66
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Journal articleSanderson TR, Lario D, Maksimovic M, et al., 1999,
Current sheet control of recurrent particle increases at 4-5 AU
, GEOPHYSICAL RESEARCH LETTERS, Vol: 26, Pages: 1785-1788, ISSN: 0094-8276- Author Web Link
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- Citations: 14
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Journal articleKrupp N, Dougherty MK, Woch J, et al., 1999,
Energetic particles in the duskside Jovian Magnetosphere
, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 104, Pages: 14767-14780, ISSN: 2169-9380- Author Web Link
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- Citations: 18
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Journal articleCargill PJ, 1999,
A model for plasma flows and shocks in the high-altitude cusp
, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 104, Pages: 14647-14653, ISSN: 2169-9380- Author Web Link
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- Citations: 8
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Journal articleGeer AJ, Harries JE, Brindley HE, 1999,
Spatial patterns of climate variability in upper-tropospheric water vapor radiances from satellite data and climate model simulations
, JOURNAL OF CLIMATE, Vol: 12, Pages: 1940-1955, ISSN: 0894-8755- Author Web Link
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- Citations: 15
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Journal articleGaland M, Lilensten J, Toublanc D, et al., 1999,
The ionosphere of Titan: Ideal diurnal and nocturnal cases
, ICARUS, Vol: 140, Pages: 92-105, ISSN: 0019-1035- Author Web Link
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- Citations: 70
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Journal articleClassen HT, Mann G, Forsyth RJ, et al., 1999,
Low frequency plasma turbulence and high energy particles at CIR-related shock waves
, ASTRONOMY & ASTROPHYSICS, Vol: 347, Pages: 313-320, ISSN: 0004-6361- Author Web Link
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- Citations: 4
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Journal articleRishbeth H, Müller-Wodarg ICF, 1999,
Vertical circulation and thermospheric composition: a modelling study
, Annales Geophysicae, Vol: 17, Pages: 794-805<jats:p>Abstract. The coupled thermosphere-ionosphere-plasmasphere model CTIP is used to study the global three-dimensional circulation and its effect on neutral composition in the midlatitude F-layer. At equinox, the vertical air motion is basically up by day, down by night, and the atomic oxygen/molecular nitrogen [O/N2] concentration ratio is symmetrical about the equator. At solstice there is a summer-to-winter flow of air, with downwelling at subauroral latitudes in winter that produces regions of large [O/N2] ratio. Because the thermospheric circulation is influenced by the high-latitude energy inputs, which are related to the geometry of the Earth's magnetic field, the latitude of the downwelling regions varies with longitude. The downwelling regions give rise to large F2-layer electron densities when they are sunlit, but not when they are in darkness, with implications for the distribution of seasonal and semiannual variations of the F2-layer. It is also found that the vertical distributions of O and N2 may depart appreciably from diffusive equilibrium at heights up to about 160 km, especially in the summer hemisphere where there is strong upwelling. Atmospheric composition and structure (thermosphere · composition and chemistry) · Ionosphere (ionosphere · atmosphere interactions) </jats:p>
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Journal articleToumi R, Hartell N, Bignell K, 1999,
Mountain station pressure as an indicator of climate change
, GEOPHYSICAL RESEARCH LETTERS, Vol: 26, Pages: 1751-1754, ISSN: 0094-8276- Author Web Link
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- Citations: 17
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Journal articleBale SD, Reiner MJ, Bougeret JL, et al., 1999,
The source region of an interplanetary type II radio burst
, GEOPHYSICAL RESEARCH LETTERS, Vol: 26, Pages: 1573-1576, ISSN: 0094-8276- Author Web Link
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- Citations: 173
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Conference paperGrappin R, Mangeney A, Schwartz SJ, et al., 1999,
Intermittent heating of the corona as an alternative to generate fast solar wind flows
, Pages: 329-332-329-332 -
Journal articleRishbeth H, Müller-Wodarg ICF, 1999,
Vertical circulation and thermospheric composition:: a modelling study
, ANNALES GEOPHYSICAE-ATMOSPHERES HYDROSPHERES AND SPACE SCIENCES, Vol: 17, Pages: 794-805, ISSN: 0992-7689- Author Web Link
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- Citations: 83
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Journal articleProffitt CR, Jönsson P, Litzén U, et al., 1999,
Goddard high resolution spectrograph observations of the BIII resonance doublet in early B stars:: Abundances and isotope ratios
, ASTROPHYSICAL JOURNAL, Vol: 516, Pages: 342-348, ISSN: 0004-637X- Author Web Link
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- Citations: 31
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Journal articleLinker JA, Mikic Z, Biesecker DA, et al., 1999,
Magnetohydrodynamic modeling of the solar corona during Whole Sun Month
, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 104, Pages: 9809-9830, ISSN: 2169-9380- Author Web Link
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- Citations: 272
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Journal articleProffitt CR, Jönsson P, Litzén U, et al., 1999,
Goddard high-resolution spectrograph observations of the B III resonance doublet in early B stars: Abundances and isotope ratios
, Astrophysical Journal, Vol: 516, Pages: 342-348, ISSN: 0004-637XBoron abundances and isotope ratios in two early B stars have been measured by using the Hubble Space Telescope's Goddard High-Resolution Spectrograph (GHRS) in order to observe the B III resonance doublet near 2066 Å. We also report new experimental and theoretical results for the wavelengths, isotope shift, and hyperfine structure of these boron lines. In HD 886 (γ Pegasi; B2 IV), and HD 35299 (B1 V) the abundance of boron is about a factor of 2 lower than that inferred from solar system meteorites. The 11B/10B isotope ratio in HD 886 is determined to be 4.7+1.1-1.0, and for HD 35299 a value of 3.7+0.8-0.6 is found. These values are consistent with the solar system isotope ratio. In a third star, HD 3360 (ζ Cassiopeiae; B2 IV), our GHRS observations show that the boron abundance is a factor of 40 below the solar system abundance. Our results for HD 886 and HD 35299 appear to be consistent with little dispersion in the initial boron-to-oxygen ratio among Population I stars and a universal 11B/10B isotope ratio. However, the abundance measured for HD 3360 shows that either some stars suffer significant boron depletion while still in the core-hydrogen burning phase of their evolution, or there is indeed a very wide variation in initial Population I boron abundances. A much-improved understanding of boron astration in early B stars will be required before this question can be resolved.
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Journal articleRiley P, Gosling JT, McComas DJ, et al., 1999,
Relationship between Ulysses plasma observations and solar observations during the Whole Sun Month campaign
, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 104, Pages: 9871-9879, ISSN: 2169-9380- Author Web Link
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- Citations: 28
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Journal articleKellogg PJ, Goetz K, Monson SJ, et al., 1999,
A search for Langmuir solitons in the Earth's foreshock
, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 104, Pages: 6751-6757, ISSN: 2169-9380- Author Web Link
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- Citations: 26
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Journal articleFunsten HO, Gosling JT, Riley P, et al., 1999,
Combined Ulysses solar wind and SOHO coronal observations of several west limb coronal mass ejections
, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 104, Pages: 6679-6689, ISSN: 2169-9380- Author Web Link
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- Citations: 19
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Journal articleKernthaler SC, Toumi R, Haigh JD, 1999,
Some doubts concerning a link between cosmic ray fluxes and global cloudiness
, GEOPHYSICAL RESEARCH LETTERS, Vol: 26, Pages: 863-865, ISSN: 0094-8276- Author Web Link
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- Citations: 78
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Journal articleDesai MI, Marsden RG, Sanderson TR, et al., 1999,
Energy spectra of 50-keV to 20-MeV protons accelerated at corotating interaction regions at Ulysses
, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 104, Pages: 6705-6719, ISSN: 2169-9380- Author Web Link
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- Citations: 36
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Journal articleZhong WY, Haigh JD, 1999,
The sensitivity of long-wave radiation fields and the response of a GCM to water-vapour continuum absorption
, QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, Vol: 125, Pages: 1383-1406, ISSN: 0035-9009- Author Web Link
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- Citations: 7
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Journal articleHaigh JD, 1999,
A GCM study of climate change in response to the 11-year solar cycle
, QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, Vol: 125, Pages: 871-892, ISSN: 0035-9009- Author Web Link
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- Citations: 139
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Journal articleBalogh A, Forsyth RJ, Lucek EA, et al., 1999,
Heliospheric magnetic field polarity inversions at high heliographic latitudes
, GEOPHYSICAL RESEARCH LETTERS, Vol: 26, Pages: 631-634, ISSN: 0094-8276- Author Web Link
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- Citations: 99
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Journal articleBale SD, 1999,
Observation of topside ionospheric MF/HF radio emission from space
, GEOPHYSICAL RESEARCH LETTERS, Vol: 26, Pages: 667-670, ISSN: 0094-8276- Author Web Link
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- Citations: 14
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Journal articleGaland M, Richmond AD, 1999,
Magnetic mirroring in an incident proton beam
, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 104, Pages: 4447-4455, ISSN: 2169-9380- Author Web Link
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- Citations: 26
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Journal articleSibeck DG, Borodkova NL, Schwartz SJ, et al., 1999,
Comprehensive study of the magnetospheric response to a hot flow anomaly
, \jgr, Vol: 104, Pages: 4577-4594-4577-4594 -
Journal articleChisham G, Schwartz SJ, Balikhin MA, et al., 1999,
AMPTE observations of mirror mode waves in the magnetosheath: Wavevector determination
, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 104, Pages: 437-447, ISSN: 2169-9380- Author Web Link
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- Citations: 38
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Journal articleJones GH, Balogh A, Horbury TS, 1999,
Observations of heliospheric planar and offset-planar magnetic structures
, GEOPHYSICAL RESEARCH LETTERS, Vol: 26, Pages: 13-16, ISSN: 0094-8276- Author Web Link
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- Citations: 17
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Journal articleLockwood M, Stamper R, Wild MN, et al., 1999,
Our changing Sun
, Astronomy and Geophysics, Vol: 40, Pages: 410-416, ISSN: 1366-8781Stellar astronomy tells us much about the long-term evolution of our Sun while forensic evidence (for example, cosmic-ray products in ice cores) gives us indications of its fluctuations over the last millennium. However, such studies do not give us a sufficiently detailed understanding of solar change over the last century to allow us to detect and quantify any role that the Sun might have played in the observed rise in average surface temperatures on Earth. This paper describes recent research that has filled this gap by applying advances in our understanding of the effects and structure of the solar wind to historical data on the Earth's magnetic field.
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