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  • Journal article
    Ma Y, Nagy AF, Cravens TE, Sokolov IV, Hansen KC, Wahlund J-E, Crary FJ, Coates AJ, Dougherty MKet al., 2006,

    Comparisons between MHD model calculations and observations of Cassini flybys of Titan

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 111, ISSN: 2169-9380
  • Journal article
    Sonnerup BUO, Haaland S, Paschmann G, Dunlop MW, Reme H, Balogh Aet al., 2006,

    Orientation and motion of a plasma discontinuity from single-spacecraft measurements:: Generic residue analysis of Cluster data

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 111, ISSN: 2169-9380
  • Journal article
    Giampieri G, Dougherty MK, Smith EJ, Russell CTet al., 2006,

    A regular period for Saturn's magnetic field that may track its internal rotation

    , NATURE, Vol: 441, Pages: 62-64, ISSN: 0028-0836
  • Journal article
    Czaja A, Marshall J, 2006,

    Partitioning of poleward heat transport between the atmosphere and ocean

    , JOURNAL OF THE ATMOSPHERIC SCIENCES, Vol: 63, Pages: 1498-1511, ISSN: 0022-4928
  • Journal article
    Duan S-P, Liu Z-X, Cao J-B, Shi J-K, Lu L, Li Z-Y, Zong QG, Reme H, Cornilleau-Wehrlin N, Balogh A, Andre Met al., 2006,

    Analysis of the interaction between low-frequency waves and ions in the high-altitude cusp region observed by satellite cluster

    , CHINESE PHYSICS LETTERS, Vol: 23, Pages: 1351-1354, ISSN: 0256-307X
  • Journal article
    Lavraud B, Thomsen MF, Lefebvre B, Schwartz SJ, Seki K, Phan TD, Wang YL, Fazakerley A, Rème H, Balogh Aet al., 2006,

    Evidence for newly closed magnetosheath field lines at the dayside magnetopause under northward IMF

    , Journal of Geophysical Research (Space Physics), Vol: 111, Pages: A05211-A05211
  • Journal article
    Shi QQ, Shen C, Dunlop MW, Pu ZY, Zong QG, Liu ZX, Lucek E, Balogh Aet al., 2006,

    Motion of observed structures calculated from multi-point magnetic field measurements: Application to Cluster

    , GEOPHYSICAL RESEARCH LETTERS, Vol: 33, ISSN: 0094-8276
    • Cite
    • Citations: 125
  • Journal article
    Cravens TE, Robertson IP, Waite JH, Yelle RV, Kasprzak WT, Keller CN, Ledvina SA, Niemann HB, Luhmann JG, McNutt RL, Ip WH, De La Haye V, Mueller-Wodarg I, Wahlund JE, Anicich VG, Vuitton Vet al., 2006,

    Composition of titan's ionosphere

    , GEOPHYSICAL RESEARCH LETTERS, Vol: 33, ISSN: 0094-8276
    • Cite
    • Citations: 195
  • Journal article
    Cao JB, Ma YD, Parks G, Reme H, Dandouras I, Nakamura R, Zhang TL, Zong Q, Lucek E, Carr CM, Liu ZX, Zhou GCet al., 2006,

    Joint observations by Cluster satellites of bursty bulk flows in the magnetotail

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 111, ISSN: 2169-9380
    • Cite
    • Citations: 213
  • Journal article
    Cowley SWH, Wright DM, Bunce EJ, Carter AC, Dougherty MK, Giampieri G, Nichols JD, Robinson TRet al., 2006,

    Cassini observations of planetary-period magnetic field oscillations in Saturn's magnetosphere: Doppler shifts and phase motion

    , GEOPHYSICAL RESEARCH LETTERS, Vol: 33, ISSN: 0094-8276
  • Journal article
    Turkmani R, Cargill PJ, Galsgaard K, Vlahos L, Isliker Het al., 2006,

    Particle acceleration in stochastic current sheets in stressed coronal active regions

    , ASTRONOMY & ASTROPHYSICS, Vol: 449, Pages: 749-757, ISSN: 0004-6361
    • Cite
    • Citations: 64
  • Journal article
    Haigh JD, Blackburn M, 2006,

    Solar influences on dynamical coupling between the stratosphere and troposphere

    , SPACE SCI REV, Vol: 125, Pages: 331-344

    We use a simplified atmospheric general circulation model (AGCM) to investigate the response of the lower atmosphere to thermal perturbations in the lower stratosphere. The results show that generic heating of the lower stratosphere tends to weaken the sub-tropical jets and the tropospheric mean meridional circulations. The positions of the jets, and the extent of the Hadley cells, respond to the distribution of the stratospheric heating, with low latitude heating displacing them poleward, and uniform heating displacing them equatorward. The patterns of response to the low latitude heating are similar to those found to be associated with solar variability in previous observational data analysis, and to the effects of varying solar UV radiation in sophisticated AGCMs. In order to investigate the chain of causality involved in converting the stratospheric thermal forcing to a tropospheric climate signal we conduct an experiment which uses an ensemble of model spin-ups to analyse the time development of the response to an applied stratospheric perturbation. We find that the initial effect of the change in static stability at the tropopause is to reduce the eddy momentum flux convergence in this region. This is followed by a vertical transfer of the momentum forcing anomaly by an anomalous mean circulation to the surface, where it is partly balanced by surface stress anomalies. The unbalanced part drives the evolution of the vertically integrated zonal flow. We conclude that solar heating of the stratosphere may produce changes in the circulation of the troposphere even without any direct forcing below the tropopause. We suggest that the impact of the stratospheric changes on wave propagation is key to the mechanisms involved.
  • Journal article
    Haigh JD, Blackburn M, 2006,

    Solar influences on dynamical coupling between the stratosphere and troposphere

    , SPACE SCI REV, Vol: 125, Pages: 331-344

    We use a simplified atmospheric general circulation model (AGCM) to investigate the response of the lower atmosphere to thermal perturbations in the lower stratosphere. The results show that generic heating of the lower stratosphere tends to weaken the sub-tropical jets and the tropospheric mean meridional circulations. The positions of the jets, and the extent of the Hadley cells, respond to the distribution of the stratospheric heating, with low latitude heating displacing them poleward, and uniform heating displacing them equatorward. The patterns of response to the low latitude heating are similar to those found to be associated with solar variability in previous observational data analysis, and to the effects of varying solar UV radiation in sophisticated AGCMs. In order to investigate the chain of causality involved in converting the stratospheric thermal forcing to a tropospheric climate signal we conduct an experiment which uses an ensemble of model spin-ups to analyse the time development of the response to an applied stratospheric perturbation. We find that the initial effect of the change in static stability at the tropopause is to reduce the eddy momentum flux convergence in this region. This is followed by a vertical transfer of the momentum forcing anomaly by an anomalous mean circulation to the surface, where it is partly balanced by surface stress anomalies. The unbalanced part drives the evolution of the vertically integrated zonal flow. We conclude that solar heating of the stratosphere may produce changes in the circulation of the troposphere even without any direct forcing below the tropopause. We suggest that the impact of the stratospheric changes on wave propagation is key to the mechanisms involved.
  • Journal article
    Williams JD, Chen LJ, Kurth WS, Gurnett DA, Dougherty MKet al., 2006,

    Electrostatic solitary structures observed at Saturn

    , GEOPHYSICAL RESEARCH LETTERS, Vol: 33, ISSN: 0094-8276
    • Cite
    • Citations: 46
  • Journal article
    Dougherty MK, Khurana KK, Neubauer FM, Russell CT, Saur J, Leisner JS, Burton MEet al., 2006,

    Identification of a dynamic atmosphere at Enceladus with the Cassini magnetometer

    , SCIENCE, Vol: 311, Pages: 1406-1409, ISSN: 0036-8075
  • Journal article
    Jones GH, Roussos E, Krupp N, Paranicas C, Woch J, Lagg A, Mitchell DG, Krimigis SM, Dougherty MKet al., 2006,

    Enceladus' varying imprint on the magnetosphere of Saturn

    , SCIENCE, Vol: 311, Pages: 1412-1415, ISSN: 0036-8075
  • Journal article
    Thompson SM, Kivelson MG, El-Alaoui M, Balogh A, Réme H, Kistler LMet al., 2006,

    Bifurcated current sheets: Statistics from Cluster magnetometer measurements

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 111, ISSN: 2169-9380
    • Cite
    • Citations: 24
  • Journal article
    Achilleos N, Bertucci C, Russell CT, Hospodarsky GB, Rymer AM, Arridge CS, Burton ME, Dougherty MK, Hendricks S, Smith EJ, Tsurutani BTet al., 2006,

    Orientation, location, and velocity of Saturn's bow shock: Initial results from the Cassini spacecraft

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 111, ISSN: 2169-9380
    • Cite
    • Citations: 47
  • Journal article
    Ren ZP, Lu L, Lei JG, Li ZY, Liu ZX, Balogh A, Rème Het al., 2006,

    Movement of the magnetic structure in the plasma sheet observed by Cluster II

    , CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, Vol: 49, Pages: 315-320, ISSN: 0001-5733
  • Journal article
    Forsyth RJ, Bothmer V, Cid C, Crooker NU, Horbury TS, Kecskemety K, Klecker B, Linker JA, Odstrcil D, Reiner MJ, Richardson IG, Rodriguez-Pacheco J, Schmidt JM, Wimmer-Schweingruber RFet al., 2006,

    ICMEs in the inner heliosphere: Origin, evolution and propagation effects

    , SPACE SCIENCE REVIEWS, Vol: 123, Pages: 383-416, ISSN: 0038-6308
  • Journal article
    Wimmer-Schweingruber RF, Crooker NU, Balogh A, Bothmer V, Forsyth RJ, Gazis P, Gosling JT, Horbury T, Kilchenmann A, Richardson IG, Richardson JD, Riley P, Rodriguez L, Von Steiger R, Wurz P, Zurbuchen THet al., 2006,

    Understanding interplanetary coronal mass ejection signatures

    , SPACE SCIENCE REVIEWS, Vol: 123, Pages: 177-216, ISSN: 0038-6308
  • Journal article
    Gazis PR, Balogh A, Dalla S, Decker R, Heber B, Horbury T, Kilchenmann A, Kota J, Kucharek H, Kunow H, Lario D, Potgieter MS, Richardson JD, Riley P, Rodriguez L, Siscoe G, Von Steiger Ret al., 2006,

    ICMEs at high latitudes and in the outer heliosphere

    , SPACE SCIENCE REVIEWS, Vol: 123, Pages: 417-451, ISSN: 0038-6308
  • Journal article
    Crooker NU, Horbury TS, 2006,

    Solar imprint on ICMEs, their magnetic connectivity, and heliospheric evolution

    , SPACE SCIENCE REVIEWS, Vol: 123, Pages: 93-109, ISSN: 0038-6308
  • Journal article
    Sahraoui F, Belmont G, Rezeau L, Cornilleau-Wehrlin N, Pinçon JL, Balogh Aet al., 2006,

    Anisotropic turbulent spectra in the terrestrial magnetosheath as seen by the cluster spacecraft

    , PHYSICAL REVIEW LETTERS, Vol: 96, ISSN: 0031-9007
    • Cite
    • Citations: 195
  • Journal article
    Saur J, Mauk BH, Mitchell DG, Krupp N, Khurana KK, Livi S, Krimigis M, Newell PT, Williams DJ, Brandt PC, Lagg A, Roussos E, Dougherty MKet al., 2006,

    Anti-planetward auroral electron beams at Saturn

    , NATURE, Vol: 439, Pages: 699-702, ISSN: 0028-0836
    • Cite
    • Citations: 42
  • Journal article
    Yoshino K, Thorne AP, Murray JE, Cheung ASC, Wong AL, Imajo Tet al., 2006,

    The application of a vacuum-ultraviolet Fourier transform spectrometer and synchrotron-radiation source to measurements of bands of NO. VII. The final report

    , JOURNAL OF CHEMICAL PHYSICS, Vol: 124, ISSN: 0021-9606
  • Journal article
    Phan TD, Gosling JT, Davis MS, Skoug RM, Oieroset M, Lin RP, Lepping RP, McComas DJ, Smith CW, Reme H, Balogh Aet al., 2006,

    A magnetic reconnection X-line extending more than 390 Earth radii in the solar wind

    , NATURE, Vol: 439, Pages: 175-178, ISSN: 0028-0836
    • Cite
    • Citations: 277
  • Conference paper
    Dunlop MW, Taylor MGGT, Davies JA, Pu Z, Fazakerley AN, Owen CJ, Bogdanova YV, Pitout F, Laakso H, Zong QG, Shen C, Nykyri K, Lavraud B, Milan SE, Liu ZX, Escoubet CP, Rème H, Carr CM, Phan TD, Lockwood M, Sonnerup Bet al., 2006,

    Comparative Cluster/Double Star observations of the high and low latitude dayside magnetopause

    , Pages: 393-400, ISSN: 0379-6566

    The launch of the Double Star mission has provided the opportunity to monitor events at distinct locations on the dayside magnetopause, in coordination with the quartet of Cluster spacecraft. We present results of two such coordinated studies. In the first, 6 April 2004, both Cluster and the Double Star TC-1 spacecraft were on outbound transits through the dawn-side magnetosphere. Cluster observed northward moving FTEs with +/- polarity, whereas TC-1 saw -/+ polarity FTEs. The strength, motion and occurrence of the FTE signatures changes somewhat according to changes in IMF clock angle. These observations are consistent with ongoing reconnection on the dayside magnetopause, resulting in a series of flux transfer events (FTEs) seen both at Cluster and TC-1. The observed polarity and motion of each FTE signature advocates the existence of an active reconnection region consistently located between the positions of Cluster and TC-1, lying north and south of the reconnection line, respectively. This scenario is supported by the application of a model, designed to track flux tube motion, to conditions appropriate for the prevailing interplanetary conditions. The results from the model confirm the observational evidence that the low-latitude FTE dynamics is sensitive to changes in convected upstream conditions. In particular, changing the interplanetary magnetic field (IMF) clock angle in the model predicts that TC-1 should miss the resulting FTEs more often than Cluster, as is observed. For the second conjunction, on the 4 Jan 2005, the Cluster and TC-1 spacecraft all exited the dusk-side magnetosphere almost simultaneously, with TC-1 lying almost equatorial and Cluster at northern latitudes at about 4 R<inf>E</inf> from TC-1. The spacecraft traverse the magnetopause during a strong reversal in the IMF from northward to southward and a number of magnetosheath FTE signatures are subsequently observed. One coordinated FTE, studied in detail by Pu et al, [this is
  • Conference paper
    Cornilleau-Wehrlin N, Attié D, Belraont G, Rezeau L, Robert P, Alleyne HSC, Yearby K, Balogh A, Carr Cet al., 2006,

    Comparison of ulf waves at magnetopause crossings at different latitudes, as seen by the cluster and double star staff experiments

    , Pages: 191-197, ISSN: 0379-6566

    Strong ULF wave activity has been observed at magnetopause crossings since a long time. Those turbulent like waves are possibly one of the contributors to particle penetration from the Solar Wind to the Magnetosphere through the magnetopause. STAFF Wave experiments onboard Cluster and Double Star TC1 spacecraft permit the comparison of those waves during coordinated crossings, at the same local time, but at different latitude, the TC1 Double Star orbit being nearly equatorial and the Cluster one polar. From a first analysis of simultaneous Cluster and DSP data sets in the first half of year 2004, 21 coordinated magnetopause crossings have been identified, i.e. within less than 3 hours, out of which 16 are within one hour time delay. Some characteristics of the ULF wave data in the vicinity of these crossings are compared, as wave power and frequency spectra power law. Similarities and differences are discussed at the light of solar wind parameters, latitude, local time or time delay between the crossings. These results first confirm the relation between the solar wind pressure and the ULF wave power. They indicate that in most of the cases, the wave power measured by Double Star is stronger than the one measured by the Cluster spacecraft., whereas no local time dependence has been found. If those first results were to be confirmed, it could imply a predominant role of the equatorial plane in the solar wind/ magnetosphere coupling via ULF wave turbulence, with no preference for the sub-solar region.
  • Conference paper
    Gloag JM, Carr C, Forte B, Lucek EAet al., 2006,

    The status of cluster FGM data submissions to the CAA

    , Pages: 461-464, ISSN: 0379-6566

    The FGM contribution to the Cluster Active Archive consists of 3 main magnetic field data products and a set of auxiliary data products. The three primary magnetic field data products contain the magnetic field in GSE coordinates at three different time resolutions. The first data product has full resolution data which can be at 22Hz or 67Hz depending on the mode of the instrument. The second data product has data at 5Hz and the third data product at spin resolution. All data products are validated for scientific use. Presented here is an outline of the procedure used to create these data products. A description of the calibration techniques used to produce the required calibration files is also set out as this forms a major part of the production procedure. In addition the present status of data products submitted to the CAA is presented along with a projection of what will be submitted in the near future.

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

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