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  • 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
    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.
  • 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
  • Journal article
    Li P, Fu G, Lu C, Fu D, Wang Set al., 2012,

    The Formation Mechanism of a Spring Sea Fog Event over the Yellow Sea Associated with a Low-Level Jet

    , WEATHER AND FORECASTING, Vol: 27, Pages: 1538-1553, ISSN: 0882-8156
  • 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
    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
    Gryspeerdt E, Stier P, 2012,

    Regime-based analysis of aerosol-cloud interactions

    , GEOPHYSICAL RESEARCH LETTERS, Vol: 39, ISSN: 0094-8276
  • 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
    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
    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
  • 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
    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
    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
    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
  • 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
    Stawarz JE, Pouquet A, Brachet M-E, 2012,

    Long-time properties of magnetohydrodynamic turbulence and the role of symmetries

    , PHYSICAL REVIEW E, Vol: 86, ISSN: 1539-3755
  • 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
  • Journal article
    Fu D, Wang S, Chen D, Pang H, Li Pet al., 2012,

    Comparison study between observation and simulation for sea fog over the Yellow Sea in May 2009

    , JOURNAL OF OCEAN UNIVERSITY OF CHINA, Vol: 11, Pages: 290-300, ISSN: 1671-2463
  • Journal article
    Eastwood JP, Phan TD, Fear RC, Sibeck DG, Angelopoulos V, Oieroset M, Shay MAet al., 2012,

    Survival of flux transfer event (FTE) flux ropes far along the tail magnetopause

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 117, ISSN: 2169-9380
  • Journal article
    Southwood D, 2012,

    When international partnerships go wrong

    , NATURE, Vol: 488, Pages: 451-453, ISSN: 0028-0836
  • Journal article
    Carboni E, Thomas G, Sayer A, Siddans R, Poulsen C, Grainger R, Ahn C, Antoine D, Bevan S, Braak R, Brindley H, DeSouza-Machado S, Deuze J, Diner D, Ducos F, Grey W, Hsu C, Kalashnikova O, Kahn R, North P, Salustro C, Smith A, Tanre D, Torres O, Veihelmann Bet al., 2012,

    Intercomparison of desert dust optical depth from satellite measurements

    , Atmospheric Measurement Techniques, Vol: 5, Pages: 1973-2002

    This work provides a comparison of satellite retrievals of Saharan desert dust aerosol optical depth (AOD) during a strong dust event through March 2006. In this event, a large dust plume was transported over desert, vegetated, and ocean surfaces. The aim is to identify the differences between current datasets. The satellite instruments considered are AATSR, AIRS, MERIS, MISR, MODIS, OMI, POLDER, and SEVIRI. An interesting aspect is that the different algorithms make use of different instrument characteristics to obtain retrievals over bright surfaces. These include multi-angle approaches (MISR, AATSR), polarisation measurements (POLDER), single-view approaches using solar wavelengths (OMI, MODIS), and the thermal infrared spectral region (SEVIRI, AIRS). Differences between instruments, together with the comparison of different retrieval algorithms applied to measurements from the same instrument, provide a unique insight into the performance and characteristics of the various techniques employed. As well as the intercomparison between different satellite products, the AODs have also been compared to co-located AERONET data. Despite the fact that the agreement between satellite and AERONET AODs is reasonably good for all of the datasets, there are significant differences between them when compared to each other, especially over land. These differences are partially due to differences in the algorithms, such as assumptions about aerosol model and surface properties. However, in this comparison of spatially and temporally averaged data, it is important to note that differences in sampling, related to the actual footprint of each instrument on the heterogeneous aerosol field, cloud identification and the quality control flags of each dataset can be an important issue.
  • Journal article
    Klein KG, Howes GG, TenBarge JM, Bale SD, Chen CHK, Salem CSet al., 2012,

    Using Synthetic Spacecraft Data to Interpret Compressible Fluctuations in Solar Wind Turbulence

    , The Astrophysical Journal, Vol: 755, Pages: 159-159, ISSN: 0004-637X
  • Journal article
    Shindell DT, Voulgarakis A, Faluvegi G, Milly Get al., 2012,

    Precipitation response to regional radiative forcing

    , Atmospheric Chemistry and Physics, Vol: 12, Pages: 6969-6982

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