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• Book chapter
  Solanki SK, Krivova NA, Haigh JD, 2013,
  , ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, VOL 51, Editors: Faber, VanDishoeck, Publisher: ANNUAL REVIEWS, Pages: 311-351
  • Cite
  • Citations: 249
• Journal article
  Dhomse SS, Chipperfield MP, Feng W, Ball WT, Unruh YC, Haigh JD, Krivova NA, Solanki SK, Smith AKet al., 2013,
  , ATMOSPHERIC CHEMISTRY AND PHYSICS, Vol: 13, Pages: 10113-10123, ISSN: 1680-7316
  • Cite
  • Citations: 23
• Journal article
  Archer MO, Hartinger MD, Horbury TS, 2013,
  , Geophysical 91ÌÒÉ« 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.

  • Abstract
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• Journal article
  Owens MJ, Forsyth RJ, 2013,
  , LIVING REVIEWS IN SOLAR PHYSICS, Vol: 10, ISSN: 2367-3648
  • Cite
  • Citations: 218
• 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,
  , ANNALES GEOPHYSICAE, Vol: 31, Pages: 817-833, ISSN: 0992-7689
  • Cite
  • Citations: 36
• 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,
  , Conference on Sensors and Systems for Space Applications VI, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X
  • Cite
  • Citations: 10
• Conference paper
  Forman MA, Wicks RT, Horbury TS, Oughton Set al., 2013,
  , 13th International Solar Wind Conference (Solar Wind), Publisher: AMER INST PHYSICS, Pages: 167-170, ISSN: 0094-243X
  • Cite
  • Citations: 1
• Conference paper
  Wicks RT, Matteini L, Horbury TS, Hellinger P, Roberts DAet al., 2013,
  , 13th International Solar Wind Conference (Solar Wind), Publisher: AMER INST PHYSICS, Pages: 303-306, ISSN: 0094-243X
  • Cite
  • Citations: 15
• Journal article
  Marlier ME, DeFries RS, Voulgarakis A, Kinney PL, Randerson JT, Shindell DT, Chen Y, Faluvegi Get al., 2013,
  , Nature Climate Change, Vol: 3, Pages: 131-136
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• Journal article
  Voulgarakis A, Naik V, Lamarque JF, Shindell DT, Young PJ, Prather MJ, Wild O, Field RF, Bergmann D, Cameron-Smith P, Cionni I, Collins WJ, Dalsøren SB, Doherty RM, Eyring V, Faluvegi G, Folberth GA, Horowitz LW, Josse B, McKenzie I, Nagashima T, Plummer DA, Righi M, Rumbold ST, Stevenson DS, Strode SA, Sudo K, Szopa S, Zeng Get al., 2013,
  , Atmospheric Chemistry and Physics, Vol: 13, Pages: 2563-2587
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• Journal article
  Lamarque JF, Shindell DT, Josse B, Young PJ, Cionni I, Eyring V, Bergmann D, Cameron-Smith P, Collins WJ, Doherty R, Dalsoren S, Faluvegi G, Folberth G, Ghan SJ, Horowitz LW, Lee YH, MacKenzie IA, Nagashima T, Naik V, Plummer D, Righi M, Rumbold ST, Schulz M, Skeie RB, Stevenson DS, Strode S, Sudo K, Szopa S, Voulgarakis A, Zeng Get al., 2013,
  , Geosci. Model Dev., Vol: 6, Pages: 179-206
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• Journal article
  Shindell DT, Lamarque JF, Schulz M, Flanner M, Jiao C, Chin M, Young PJ, Lee YH, Rotstayn L, Mahowald N, Milly G, Faluvegi G, Balkanski Y, Collins WJ, Conley AJ, Dalsoren S, Easter R, Ghan S, Horowitz L, Liu X, Myhre G, Nagashima T, Naik V, Rumbold ST, Skeie R, Sudo K, Szopa S, Takemura T, Voulgarakis A, Yoon JH, Lo Fet al., 2013,
  , Atmospheric Chemistry and Physics, Vol: 13, Pages: 2939-2974
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• Journal article
  Young PJ, Archibald AT, Bowman KW, Lamarque JF, Naik V, Stevenson DS, Tilmes S, Voulgarakis A, Wild O, Bergmann D, Cameron-Smith P, Cionni I, Collins WJ, Dalsoren SB, Doherty RM, Eyring V, Faluvegi G, Horowitz LW, Josse B, Lee YH, MacKenzie IA, Nagashima T, Plummer DA, Righi M, Rumbold ST, Skeie RB, Shindell DT, Strode SA, Sudo K, Szopa S, Zeng Get al., 2013,
  , Atmospheric Chemistry and Physics, Vol: 13, Pages: 2063-2090
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• Journal article
  Stevenson DS, Young PJ, Naik V, Lamarque JF, Shindell DT, Voulgarakis A, Skeie RB, Dalsoren SB, Myhre G, Berntsen TK, Folberth GA, Rumbold ST, Collins WJ, MacKenzie IA, Doherty RM, Zeng G, van Noije TPC, Strunk A, Bergmann D, Cameron-Smith P, Plummer DA, Strode SA, Horowitz L, Lee YH, Szopa S, Sudo K, Nagashima T, Josse B, Cionni I, Righi M, Eyring V, Conley A, Bowman KW, Wild O, Archibald Aet al., 2013,
  , Atmospheric Chemistry and Physics, Vol: 13, Pages: 3063-3085
  • Cite
• Journal article
  Shindell DT, Pechony O, Voulgarakis A, Faluvegi G, Nazarenko L, Lamarque JF, Bowman K, Milly G, Kovari B, Ruedy R, Schmidt GAet al., 2013,
  , Atmospheric Chemistry and Physics, Vol: 13, Pages: 2653-2689
  • Cite
• Journal article
  Voulgarakis A, Shindell DT, Faluvegi G, 2013,
  , Atmospheric Chemistry and Physics, Vol: 13, Pages: 4907-4916
  • Cite
• Journal article
  Ryder CL, Highwood EJ, Rosenberg PD, Trembath J, Brooke JK, Bart M, Dean A, Crosier J, Dorsey J, Brindley H, Banks J, Marsham JH, McQuaid JB, Sodemann H, Washington Ret al., 2013,
  , ATMOSPHERIC CHEMISTRY AND PHYSICS, Vol: 13, Pages: 303-325, ISSN: 1680-7316
  • Cite
  • Citations: 154
• Journal article
  Shindell DT, Faluvegi G, Nazarenko L, Bowman K, Lamarque HF, Voulgarakis A, Schmidt GA, Pechony O, Ruedy Ret al., 2013,
  , Nature Climate Change, Vol: 3, Pages: 567-570
  • Cite
• Journal article
  Archer MO, Horbury TS, 2013,
  , Ann. Geophys., Vol: 31, Pages: 319-331
  • Cite
• Journal article
  See V, Cameron RF, Schwartz SJ, 2013,
  , ANNALES GEOPHYSICAE, Vol: 31, Pages: 639-646, ISSN: 0992-7689
  • Cite
  • Citations: 20
• Journal article
  Khatiwala S, Tanhua T, Fletcher SM, Gerber M, Doney SC, Graven HD, Gruber N, McKinley GA, Murata A, Rios AF, Sabine CLet al., 2013,
  , BIOGEOSCIENCES, Vol: 10, Pages: 2169-2191, ISSN: 1726-4170
  • Cite
  • Citations: 389
• 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,
  , BIOGEOSCIENCES, Vol: 10, Pages: 1983-2000, ISSN: 1726-4170
  • Cite
  • Citations: 297
• Journal article
  Yver CE, Graven HD, Lucas DD, Cameron-Smith PJ, Keeling RF, Weiss RFet al., 2013,
  , ATMOSPHERIC CHEMISTRY AND PHYSICS, Vol: 13, Pages: 1837-1852, ISSN: 1680-7316
  • Cite
  • Citations: 29
• Journal article
  Archer MO, Horbury TS, Eastwood JP, Weygand JM, Yeoman TKet al., 2013,
  , Journal of Geophysical 91ÌÒÉ«, Vol: 118, Pages: 5454-5466

  Abstract. We present observations from the magnetopause to the ground during periods of large amplitude, transient dynamic pressure pulses in the magnetosheath. While individual magnetosheath pulses are sharp and impulsive, the magnetospheric response is much smoother with frequencies in the Pc5-6 range being excited in the compressional and poloidal components of the magnetic field. We show that the magnetopause acts like a low pass filter, suppressing timescales shorter than a few minutes. Further filtering appears to occur locally within the magnetosphere, which may be due to the unusual field line resonance frequency profile on this day. Ground magnetometer and radar data along with equivalent ionospheric currents show signatures of travelling convection vortices, similar to the response from pressure variations of solar wind origin. However, the signatures are associated with groups of magnetosheath pulses rather than individual ones due to the impulsive nature of the pressure variations. Thus the scale-dependent magnetospheric response to these transient pressure variations, results in coherent signatures on longer timescales than any individual pulse.

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• Journal article
  Turnbull J, Graven H, Miller J, Lehman Set al., 2013,
  , RADIOCARBON, Vol: 55, Pages: 1470-1474, ISSN: 0033-8222
  • Cite
  • Citations: 2
• Journal article
  Miller J, Lehman S, Wolak C, Turnbull J, Dunn G, Graven H, Keeling R, Meijer HAJ, Aerts-Bijma AT, Palstra SWL, Smith AM, Allison C, Southon J, Xu X, Nakazawa T, Aoki S, Nakamura T, Guilderson T, LaFranchi B, Mukai H, Terao Y, Uchida M, Kondo Met al., 2013,
  , RADIOCARBON, Vol: 55, Pages: 1475-1483, ISSN: 0033-8222
  • Cite
  • Citations: 13
• Journal article
  Stallard TS, Masters A, Miller S, Melin H, Bunce EJ, Arridge CS, Achilleos N, Dougherty MK, Cowley SWHet al., 2012,
  , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 117, ISSN: 2169-9380
  • Cite
  • Citations: 20
• 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 91ÌÒÉ« 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

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• Journal article
  Landi S, Matteini L, Pantellini F, 2012,
  , ASTROPHYSICAL JOURNAL, Vol: 760, ISSN: 0004-637X
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  • Citations: 57
• Journal article
  Scherrer SC, Ceppi P, Croci-Maspoli M, Appenzeller Cet al., 2012,
  , 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.

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