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  • Conference paper
    Forman MA, Wicks RT, Horbury TS, Oughton Set al., 2013,

    Scaling Anisotropy of the Power in Parallel and Perpendicular Components of the Solar Wind Magnetic Field

    , 13th International Solar Wind Conference (Solar Wind), Publisher: AMER INST PHYSICS, Pages: 167-170, ISSN: 0094-243X
  • Conference paper
    Wicks RT, Matteini L, Horbury TS, Hellinger P, Roberts DAet al., 2013,

    Temperature anisotropy instabilities; combining plasma and magnetic field data at different distances from the Sun.

    , 13th International Solar Wind Conference (Solar Wind), Publisher: AMER INST PHYSICS, Pages: 303-306, ISSN: 0094-243X
  • Journal article
    Volwerk M, Andre N, Arridge CS, Jackman CM, Jia X, Milan SE, Radioti A, Vogt MF, Walsh AP, Nakamura R, Masters A, Forsyth Cet al., 2013,

    Comparative magnetotail flapping: an overview of selected events at Earth, Jupiter and Saturn

    , ANNALES GEOPHYSICAE, Vol: 31, Pages: 817-833, ISSN: 0992-7689
  • Conference paper
    Garrick-Bethell I, Lin RP, Sanchez H, Jaroux BA, Bester M, Brown P, Cosgrove D, Dougherty MK, Halekas JS, Hemingway D, Lozano PC, Martel F, Whitlock CWet al., 2013,

    Lunar magnetic field measurements with a cubesat

    , Conference on Sensors and Systems for Space Applications VI, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X
  • Journal article
    Archer MO, Hartinger MD, Horbury TS, 2013,

    Magnetospheric “magic” frequencies as magnetopause surface eigenmodes

    , Geophysical Research Letters, Vol: 40, Pages: 5003-5008

    Abstract. The persistent so-called “magic” magnetospheric frequencies are thought to be either directly driven by monochromatic solar wind pressure fluctuations or resonantly excited global (cavity/waveguide) or magnetopause surface eigenmodes. We distinguish between these cases by statistically investigating, using simultaneous observations, the magnetospheric response to jets in the subsolar magnetosheath. The broadband jets do not exhibit discrete frequencies, but do drive waves at the discrete “magic” frequencies, with both direct and resonant driving. We show that the expected fundamental frequencies of magnetopause surface eigenmodes have two preferential values over a wide range of upstream conditions, corresponding to fast and slow solar wind, and that their harmonics are in good agreement with the “magic” frequencies. We also show that the waves are largely inconsistent with global modes outside the plasmasphere. Thus we conclude that these “magic” frequencies are most likely due to magnetopause surface eigenmodes.
  • Journal article
    Owens MJ, Forsyth RJ, 2013,

    The Heliospheric Magnetic Field

    , LIVING REVIEWS IN SOLAR PHYSICS, Vol: 10, ISSN: 2367-3648
  • Journal article
    Wanninkhof R, Park G-H, Takahashi T, Sweeney C, Feely R, Nojiri Y, Gruber N, Doney SC, McKinley GA, Lenton A, Le Quere C, Heinze C, Schwinger J, Graven H, Khatiwala Set al., 2013,

    Global ocean carbon uptake: magnitude, variability and trends

    , BIOGEOSCIENCES, Vol: 10, Pages: 1983-2000, ISSN: 1726-4170
    • Cite
    • Citations: 297
  • Journal article
    Stallard TS, Masters A, Miller S, Melin H, Bunce EJ, Arridge CS, Achilleos N, Dougherty MK, Cowley SWHet al., 2012,

    Saturn's auroral/polar H<sub>3</sub><SUP>+</SUP> infrared emission: The effect of solar wind compression

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 117, ISSN: 2169-9380
  • Journal article
    Scherrer SC, Ceppi P, Croci-Maspoli M, Appenzeller Cet al., 2012,

    Snow-albedo feedback and Swiss spring temperature trends

    , Theoretical and Applied Climatology, Vol: 110, Pages: 509-516, ISSN: 0177-798X

    We quantify the effect of the snow-albedo feedback on Swiss spring temperature trends using daily temperature and snow depth measurements from six station pairs for the period 1961–2011. We show that the daily mean 2-m temperature of a spring day without snow cover is on average 0.4 °C warmer than one with snow cover at the same location. This estimate is comparable with estimates from climate modelling studies. Caused by the decreases in snow pack, the snow-albedo feedback amplifies observed temperature trends in spring. The influence is small and confined to areas around the upward-moving snow line in spring and early summer. For the 1961–2011 period, the related temperature trend increases are in the order of 3–7 % of the total observed trend.
  • Conference paper
    Yoon S, Kim V, Yun J, Seon J, Jin H, Chae KS, Lee DH, Lin RP, Sample J, Immel T, Kim J, Horbury TS, Brown Pet al., 2012,

    Operations for two spacecraft of triple-cubesat mission trio-cinema with a single rf chain

    , Pages: 4240-4245, ISSN: 0074-1795

    TRiplet Ionospheric Observatory - Cubesat for Ion, Neutral, Electron and MAgnetic fields (TRIO-CINEMA) mission consists of three identical 3U cubesats for scientific observation. The TRIO-CINEMA mission will provide high sensitivity mapping and high cadence measurements of ring current Energetic Neutral Atom (ENA) in the range of 4 - 200 keV with 1 keV FWHM energy resolution in Low Earth Orbit (LEO). Each spacecraft is equipped with a Supra Thermal Electrons, Ions, Neutrals (STEIN) instrument and a MAGnetometer Imperial College (MAGIC) instrument. STEIN instrument is improved from those in SupraThermal Electron (STE) instrument flown on NASA's Solar TERrestrial Relations Observatory (STEREO) spacecraft and is capable of identifying electrons, positive ions and neutrals through the application of an electric field in the entrance aperture. MAGIC is dual 3-axis magnetoresistive sensor for attitude control and scientific measurement. First spacecraft of TRIO-CINEMA is developed and will be operated by Space Science Laboratory of University of California, Berkeley (UCB). Another two spacecraft are developed by Kyung Hee University (KHU) in Republic of Korea. TRIO-CINEMA is expected to provide stereo imaging of ENAs and multi-point measurements of ions, electrons and Earth magnetic fields. It is also expected that the TRIO-CINEMA measurements will complement the measurements with NASA's Radiation Belt Storm Probes (RBSP) mission by stereo imaging of the ring current through ENA measurements at low altitudes. TRIO-CINEMA data will be transmitted at 1 Mbps via S-band, whereas a UHF receiver is used for uplink communication. UCB will operate the mission via Mission Operations Center (MOC) and Berkeley Ground Station (BGS) of Space Science Laboratory (SSL). KHU has constructed a new ground station with one UHF RF system for uplink. The two KHU's spacecraft will be initially contiguous with each other deployed from the same launcher. Because the ground S-band antenna can prov
  • Journal article
    Landi S, Matteini L, Pantellini F, 2012,

    ON THE COMPETITION BETWEEN RADIAL EXPANSION AND COULOMB COLLISIONS IN SHAPING THE ELECTRON VELOCITY DISTRIBUTION FUNCTION: KINETIC SIMULATIONS

    , ASTROPHYSICAL JOURNAL, Vol: 760, ISSN: 0004-637X
    • Cite
    • Citations: 57
  • Journal article
    Hausmann U, Czaja A, 2012,

    The observed signature of mesoscale eddies in sea surface temperature and the associated heat transport

    , DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, Vol: 70, Pages: 60-72, ISSN: 0967-0637
  • Journal article
    Cui J, Yelle RV, Strobel DF, Mueller-Wodarg ICF, Snowden DS, Koskinen TT, Galand Met al., 2012,

    The CH<sub>4</sub> structure in Titan's upper atmosphere revisited

    , JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, Vol: 117, ISSN: 2169-9097
  • Journal article
    Shen C, Rong ZJ, Dunlop MW, Ma YH, Li X, Zeng G, Yan GQ, Wan WX, Liu ZX, Carr CM, Reme Het al., 2012,

    Spatial gradients from irregular, multiple-point spacecraft configurations

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 117, ISSN: 2169-9380
  • Journal article
    Gryspeerdt E, Stier P, 2012,

    Regime-based analysis of aerosol-cloud interactions

    , GEOPHYSICAL RESEARCH LETTERS, Vol: 39, ISSN: 0094-8276
  • Journal article
    Moore L, Fischer G, Mueller-Wodarg I, Galand M, Mendillo Met al., 2012,

    Diurnal variation of electron density in Saturn's ionosphere: Model comparisons with Saturn Electrostatic Discharge (SED) observations

    , ICARUS, Vol: 221, Pages: 508-516, ISSN: 0019-1035
  • Journal article
    Cargill PJ, Vlahos L, Baumann G, Drake JF, Nordlund Aet al., 2012,

    Current Fragmentation and Particle Acceleration in Solar Flares

    , SPACE SCIENCE REVIEWS, Vol: 173, Pages: 223-245, ISSN: 0038-6308
  • Journal article
    Matteini L, Hellinger P, Landi S, Trávníček PM, Velli Met al., 2012,

    Ion Kinetics in the Solar Wind: Coupling Global Expansion to Local Microphysics

    , Space Science Reviews, Vol: 172, Pages: 373-396, ISSN: 0038-6308
  • Journal article
    Balogh A, Bykov A, Lin R, Raymond J, Scholer Met al., 2012,

    Cosmic Plasmas and Particle Acceleration: An Introduction

    , SPACE SCIENCE REVIEWS, Vol: 173, Pages: 1-4, ISSN: 0038-6308
  • Journal article
    Moestl C, Farrugia CJ, Kilpua EKJ, Jian LK, Liu Y, Eastwood JP, Harrison RA, Webb DF, Temmer M, Odstrcil D, Davies JA, Rollett T, Luhmann JG, Nitta N, Mulligan T, Jensen EA, Forsyth R, Lavraud B, de Koning CA, Veronig AM, Galvin AB, Zhang TL, Anderson BJet al., 2012,

    MULTI-POINT SHOCK AND FLUX ROPE ANALYSIS OF MULTIPLE INTERPLANETARY CORONAL MASS EJECTIONS AROUND 2010 AUGUST 1 IN THE INNER HELIOSPHERE

    , ASTROPHYSICAL JOURNAL, Vol: 758, ISSN: 0004-637X
    • Cite
    • Citations: 105
  • Journal article
    Cargill PJ, Bradshaw SJ, Klimchuk JA, 2012,

    ENTHALPY-BASED THERMAL EVOLUTION OF LOOPS. III. COMPARISON OF ZERO-DIMENSIONAL MODELS

    , ASTROPHYSICAL JOURNAL, Vol: 758, ISSN: 0004-637X
  • Journal article
    Chen CHK, Mallet A, Schekochihin AA, Horbury TS, Wicks RT, Bale SDet al., 2012,

    Three-Dimensional Structure of Solar Wind Turbulence

    , The Astrophysical Journal, Vol: 758, Pages: 120-120

    We present a measurement of the scale-dependent, three-dimensional structureof the magnetic field fluctuations in inertial range solar wind turbulence withrespect to a local, physically motivated coordinate system. The Alfvenicfluctuations are three-dimensionally anisotropic, with the sense of thisanisotropy varying from large to small scales. At the outer scale, the magneticfield correlations are longest in the local fluctuation direction, consistentwith Alfven waves. At the proton gyroscale, they are longest along the localmean field direction and shortest in the direction perpendicular to the localmean field and the local field fluctuation. The compressive fluctuations arehighly elongated along the local mean field direction, although axiallysymmetric perpendicular to it. Their large anisotropy may explain why they arenot heavily damped in the solar wind.
  • Journal article
    Ceppi P, Hwang Y-T, Frierson DMW, Hartmann DLet al., 2012,

    Southern Hemisphere jet latitude biases in CMIP5 models linked to shortwave cloud forcing

    , Geophysical Research Letters, Vol: 39, Pages: 1-5, ISSN: 0094-8276

    [1] Substantial biases in shortwave cloud forcing (SWCF) of up to ±30 W m−2are found in the midlatitudes of the Southern Hemisphere in the historical simulations of 34 CMIP5 coupled general circulation models. The SWCF biases are shown to induce surface temperature anomalies localized in the midlatitudes, and are significantly correlated with the mean latitude of the eddy‐driven jet, with a negative SWCF bias corresponding to an equatorward jet latitude bias. Aquaplanet model experiments are performed to demonstrate that the jet latitude biases are primarily induced by the midlatitude SWCF anomalies, such that the jet moves toward (away from) regions of enhanced (reduced) temperature gradients. The results underline the necessity of accurately representing cloud radiative forcings in state‐of‐the‐art coupled models.
  • Journal article
    Graven HD, Gruber N, Key R, Khatiwala S, Giraud Xet al., 2012,

    Changing controls on oceanic radiocarbon: New insights on shallow-to-deep ocean exchange and anthropogenic CO<sub>2</sub> uptake

    , JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Vol: 117, ISSN: 2169-9275
  • Journal article
    Orr A, Bracegirdle TJ, Hosking JS, Jung T, Haigh JD, Phillips T, Feng Wet al., 2012,

    Possible Dynamical Mechanisms for Southern Hemisphere Climate Change due to the Ozone Hole

    , JOURNAL OF THE ATMOSPHERIC SCIENCES, Vol: 69, Pages: 2917-2932, ISSN: 0022-4928
  • Journal article
    Christophe B, Spilker LJ, Anderson JD, André N, Asmar SW, Aurnou J, Banfield D, Barucci A, Bertolami O, Bingham R, Brown P, Cecconi B, Courty J-M, Dittus H, Fletcher LN, Foulon B, Francisco F, Gil PJS, Glassmeier KH, Grundy W, Hansen C, Helbert J, Helled R, Hussmann H, Lamine B, Lämmerzahl C, Lamy L, Lehoucq R, Lenoir B, Levy A, Orton G, Páramos J, Poncy J, Postberg F, Progrebenko SV, Reh KR, Reynaud S, Robert C, Samain E, Saur J, Sayanagi KM, Schmitz N, Selig H, Sohl F, Spilker TR, Srama R, Stephan K, Touboul P, Wolf Pet al., 2012,

    OSS (Outer Solar System): a fundamental and planetary physics mission to Neptune, Triton and the Kuiper Belt

    , Experimental Astronomy, Vol: 34, Pages: 203-242, ISSN: 0922-6435
  • Journal article
    Tinetti G, Beaulieu JP, Henning T, Meyer M, Micela G, Ribas I, Stam D, Swain M, Krause O, Ollivier M, Pace E, Swinyard B, Aylward A, van Boekel R, Coradini A, Encrenaz T, Snellen I, Zapatero-Osorio MR, Bouwman J, Cho JY-K, du Foresto VC, Guillot T, Lopez-Morales M, Mueller-Wodarg I, Palle E, Selsis F, Sozzetti A, Ade PAR, Achilleos N, Adriani A, Agnor CB, Afonso C, Allende Prieto C, Bakos G, Barber RJ, Barlow M, Batista V, Bernath P, Bezard B, Borde P, Brown LR, Cassan A, Cavarroc C, Ciaravella A, Cockell C, Coustenis A, Danielski C, Decin L, De Kok R, Demangeon O, Deroo P, Doel P, Drossart P, Fletcher LN, Focardi M, Forget F, Fossey S, Fouque P, Frith J, Galand M, Gaulme P, Gonzalez Hernandez JI, Grasset O, Grassi D, Grenfell JL, Griffin MJ, Griffith CA, Groezinger U, Guedel M, Guio P, Hainaut O, Hargreaves R, Hauschildt PH, Heng K, Heyrovsky D, Hueso R, Irwin P, Kaltenegger L, Kervella P, Kipping D, Koskinen TT, Kovacs G, La Barbera A, Lammer H, Lellouch E, Leto G, Lopez Valverde MA, Lopez-Puertas M, Lovis C, Maggio A, Maillard JP, Maldonado Prado J, Marquette JB, Martin-Torres FJ, Maxted P, Miller S, Molinari S, Montes D, Moro-Martin A, Moses JI, Mousis O, Nguyen Tuong N, Nelson R, Orton GS, Pantin E, Pascale E, Pezzuto S, Pinfield D, Poretti E, Prinja R, Prisinzano L, Rees JM, Reiners A, Samuel B, Sanchez-Lavega A, Sanz Forcada J, Sasselov D, Savini G, Sicardy B, Smith A, Stixrude L, Strazzulla G, Tennyson J, Tessenyi M, Vasisht G, Vinatier S, Viti S, Waldmann I, White GJ, Widemann T, Wordsworth R, Yelle R, Yung Y, Yurchenko SNet al., 2012,

    EChO

    , EXPERIMENTAL ASTRONOMY, Vol: 34, Pages: 311-353, ISSN: 0922-6435
  • Journal article
    Graham DB, Cairns IH, Prabhakar DR, Ergun RE, Malaspina DM, Bale SD, Goetz K, Kellogg PJet al., 2012,

    Do Langmuir wave packets in the solar wind collapse?

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 117, ISSN: 2169-9380
    • Cite
    • Citations: 23
  • Journal article
    Hasegawa H, Zhang H, Lin Y, Sonnerup BUO, Schwartz SJ, Lavraud B, Zong Q-Get al., 2012,

    Magnetic flux rope formation within a magnetosheath hot flow anomaly

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 117, ISSN: 2169-9380
  • Journal article
    Cao H, Russell CT, Wicht J, Christensen UR, Dougherty MKet al., 2012,

    Saturn's high degree magnetic moments: Evidence for a unique planetary dynamo

    , ICARUS, Vol: 221, Pages: 388-394, ISSN: 0019-1035

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