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  • Journal article
    Graham DB, Cairns IH, Prabhakar DR, Ergun RE, Malaspina DM, Bale SD, Goetz K, Kellogg PJet al., 2012,

    , 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,

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 117, ISSN: 2169-9380
    • Cite
    • Citations: 22
  • Journal article
    Cao H, Russell CT, Wicht J, Christensen UR, Dougherty MKet al., 2012,

    , ICARUS, Vol: 221, Pages: 388-394, ISSN: 0019-1035
    • Cite
    • Citations: 33
  • Journal article
    Southwood D, 2012,

    , NATURE, Vol: 488, Pages: 451-453, ISSN: 0028-0836
  • Journal article
    Eastwood JP, Phan TD, Fear RC, Sibeck DG, Angelopoulos V, Oieroset M, Shay MAet al., 2012,

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 117, ISSN: 2169-9380
    • Cite
    • Citations: 44
  • 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,

    , 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,

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

    , Atmospheric Chemistry and Physics, Vol: 12, Pages: 6969-6982
  • Journal article
    Andriopoulou M, Roussos E, Krupp N, Paranicas C, Thomsen M, Krimigis S, Dougherty MK, Glassmeier K-Het al., 2012,

    , ICARUS, Vol: 220, Pages: 503-513, ISSN: 0019-1035
    • Cite
    • Citations: 47
  • Journal article
    Simon S, Kriegel H, Saur J, Wennmacher A, Neubauer FM, Roussos E, Motschmann U, Dougherty MKet al., 2012,

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 117, ISSN: 2169-9380
    • Cite
    • Citations: 39
  • Journal article
    Ray LC, Galand M, Moore LE, Fleshman Bet al., 2012,

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 117, ISSN: 2169-9380
    • Cite
    • Citations: 16
  • Journal article
    Chen CHK, Salem CS, Bonnell JW, Mozer FS, Bale SDet al., 2012,

    , Physical Review Letters, Vol: 109, Pages: 035001-035001, ISSN: 0031-9007
  • Journal article
    Erdos G, Balogh A, 2012,

    , ASTROPHYSICAL JOURNAL, Vol: 753, ISSN: 0004-637X
    • Cite
    • Citations: 13
  • Journal article
    Simpson IR, Blackburn M, Haigh JD, 2012,

    , JOURNAL OF THE ATMOSPHERIC SCIENCES, Vol: 69, Pages: 2152-2170, ISSN: 0022-4928
    • Cite
    • Citations: 20
  • Journal article
    Martinez-Oliveros JC, Lindsey C, Bale SD, Krucker Set al., 2012,

    , SOLAR PHYSICS, Vol: 279, Pages: 153-171, ISSN: 0038-0938
  • Journal article
    Chan N, Young T, Brindley H, Ekins-Daukes N, Araki K, Kemmoku Y, Yamaguchi Met al., 2012,

    , Progress in Photovoltaics, Pages: n/a-n/a

    III–V concentrator photovoltaic systems attain high efficiency through the use of series connected multi-junction solar cells. As these solar cells absorb over distinct bands over the solar spectrum, they have a more complex response to real illumination conditions than conventional silicon solar cells. Estimates for annual energy yield made assuming fixed reference spectra can vary by up to 15% depending on the assumptions made. Using a detailed computer simulation, the behaviour of a 20-cell InGaP/In0.01GaAs/Ge multi-junction concentrator system was simulated in 5-min intervals over an entire year, accounting for changes in direct normal irradiance, humidity, temperature and aerosol optical depth. The simulation was compared with concentrator system monitoring data taken over the same period and excellent agreement (within 2%) in the annual energy yield was obtained. Air mass, aerosol optical depth and precipitable water have been identified as atmospheric parameters with the largest impact on system efficiency.
  • Journal article
    Cargill PJ, Bradshaw SJ, Klimchuk JA, 2012,

    , ASTROPHYSICAL JOURNAL, Vol: 752, ISSN: 0004-637X
    • Cite
    • Citations: 103
  • Journal article
    Howes GG, Bale SD, Klein KG, Chen CHK, Salem CS, TenBarge JMet al., 2012,

    , The Astrophysical Journal Letters, Vol: 753, Pages: L19-L19, ISSN: 2041-8205
  • Journal article
    Green PD, Newman SM, Beeby RJ, Murray JE, Pickering JC, Harries JEet al., 2012,

    , PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, Vol: 370, Pages: 2637-2655, ISSN: 1364-503X
    • Cite
    • Citations: 25
  • Journal article
    O'Reilly CH, Czaja A, LaCasce JH, 2012,

    , GEOPHYSICAL RESEARCH LETTERS, Vol: 39, ISSN: 0094-8276
    • Cite
    • Citations: 11
  • Journal article
    Richter I, Auster HU, Glassmeier KH, Koenders C, Carr CM, Motschmann U, Mueller J, McKenna-Lawlor Set al., 2012,

    , PLANETARY AND SPACE SCIENCE, Vol: 66, Pages: 155-164, ISSN: 0032-0633
    • Cite
    • Citations: 21
  • Journal article
    Morse AD, Altwegg K, Andrews DJ, Auster HU, Carr CM, Galand M, Goesmann F, Gulkis S, Lee S, Richter I, Sheridan S, Stern SA, A'Hearn MF, Feldman P, Parker J, Retherford KD, Weaver HA, Wright IPet al., 2012,

    , PLANETARY AND SPACE SCIENCE, Vol: 66, Pages: 165-172, ISSN: 0032-0633
  • Journal article
    Luhmann JG, Ulusen D, Ledvina SA, Mandt K, Magee B, Waite JH, Westlake J, Cravens TE, Robertson I, Edberg N, Agren K, Wahlund J-E, Ma Y-J, Wei H, Russell CT, Dougherty MKet al., 2012,

    , ICARUS, Vol: 219, Pages: 534-555, ISSN: 0019-1035
    • Cite
    • Citations: 14
  • Journal article
    Archer MO, Horbury TS, Eastwood JP, 2012,

    , Journal of Geophyical Research, Vol: 117, ISSN: 0148-0227

    We present multipoint Time History of Events and Macroscale Interactions duringSubstorms (THEMIS) observations of transient dynamic pressure pulses in themagnetosheath 3–10 times the background in amplitude, due to enhancements in both theion density and velocity. Their spatial dimensions are of the order of 1 RE parallel tothe flow and 0.2–0.5 RE perpendicular to it, inferred from the difference in theamplitudes observed by the different spacecraft. For the first time, simultaneousobservations of the solar wind and foreshock are also shown, proving no similar dynamicpressure enhancements exist upstream of the bow shock and that the majority of pulsesare downstream of the quasi-parallel shock. By considering previously suggestedmechanisms for their generation, we show that the pressure pulses cannot be caused byreconnection, hot flow anomalies, or short, large-amplitude magnetic structures andthat at least some of the pressure pulses appear to be consistent with previoussimulations of solar wind discontinuities interacting with the bow shock. Thesesimulations predict large-amplitude pulses when the local geometry of the shock changesfrom quasi-perpendicular to quasi-parallel, while the opposite case should also producenotable pulses but typically of lower amplitude. Therefore, in a given region of themagnetosheath, some of the discontinuities in the solar wind should generate pressurepulses, whereas others are expected not to. There is also evidence that the pulses canimpinge upon the magnetopause, causing its motion.
  • Journal article
    Zaslavsky A, Meyer-Vernet N, Mann I, Czechowski A, Issautier K, Le Chat G, Pantellini F, Goetz K, Maksimovic M, Bale SD, Kasper JCet al., 2012,

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 117, ISSN: 2169-9380
    • Cite
    • Citations: 102
  • Journal article
    Lai HR, Wei HY, Russell CT, Arridge CS, Dougherty MKet al., 2012,

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 117, ISSN: 2169-9380
    • Cite
    • Citations: 50
  • Journal article
    Brown P, Beek T, Carr C, O'Brien H, Cupido E, Oddy T, Horbury TSet al., 2012,

    , MEASUREMENT SCIENCE AND TECHNOLOGY, Vol: 23, ISSN: 0957-0233
  • Journal article
    Harrison RA, Davies JA, Moestl C, Liu Y, Temmer M, Bisi MM, Eastwood JP, de Koning CA, Nitta N, Rollett T, Farrugia CJ, Forsyth RJ, Jackson BV, Jensen EA, Kilpua EKJ, Odstrcil D, Webb DFet al., 2012,

    , ASTROPHYSICAL JOURNAL, Vol: 750, ISSN: 0004-637X
    • Cite
    • Citations: 79
  • Journal article
    Masters A, Achilleos N, Cutler JC, Coates AJ, Dougherty MK, Jones GHet al., 2012,

    , PLANETARY AND SPACE SCIENCE, Vol: 65, Pages: 109-121, ISSN: 0032-0633
    • Cite
    • Citations: 40
  • Journal article
    Constantinescu OD, Glassmeier K-H, Auster U, Richter I, Fornacon K-H, Carr Cet al., 2012,

    , PLANETARY AND SPACE SCIENCE, Vol: 65, Pages: 1-9, ISSN: 0032-0633

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