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Journal articlePudney MA, Carr CM, Schwartz SJ, et al., 2013,
Near-magnetic-field scaling for verification of spacecraft equipment
, Geoscientific Instrumentation, Methods and Data Systems, Vol: 2, Pages: 249-255, ISSN: 2193-0864Magnetic-field measurements are essential tothe success of many scientific space missions. Outside ofthe earth’s magnetic field the biggest potential source ofmagnetic-field contamination of these measurements is emittedby the spacecraft. Spacecraft magnetic cleanliness is enforcedthrough the application of strict ground verificationrequirements for spacecraft equipment and instruments. Dueto increasingly strict AC magnetic-field requirements, manyspacecraft units cannot be verified on the ground using existingtechniques. These measurements must instead be takenclose to the equipment under test (EUT) and then extrapolated.A traditional dipole power law of −3 (with a fieldfall-off proportional to r−3) cannot be applied at these closedistances without risk of underestimating the field emitted bythe EUT, but we demonstrate that a power law of −2 is tooconservative. We propose a compromise that uses a powerlaw of −2 up to a distance equal to 3 times the unit size, beyondwhich a dipole power law can be applied. When extrapolatingfrom a distance of 0.20 m to 1.00 m from the centre ofa 0.20 m wide EUT, we demonstrate that this method avoidsan under prediction of the field, and is at least twice as accurateas performing the extrapolation with a fixed power lawof −2.
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Journal articleWicks RT, Roberts DA, Mallet A, et al., 2013,
Correlations at Large Scales and the Onset of Turbulence in the Fast Solar Wind
, The Astrophysical Journal, Vol: 778, Pages: 177-177, ISSN: 0004-637XWe show that the scaling of structure functions of magnetic and velocity fields in a mostly highly Alfvénic fast solar wind stream depends strongly on the joint distribution of the dimensionless measures of cross helicity and residual energy. Already at very low frequencies, fluctuations that are both more balanced (cross helicity ~0) and equipartitioned (residual energy ~0) have steep structure functions reminiscent of "turbulent" scalings usually associated with the inertial range. Fluctuations that are magnetically dominated (residual energy ~−1), and so have closely anti-aligned Elsasser-field vectors, or are imbalanced (cross helicity ~1), and so have closely aligned magnetic and velocity vectors, have wide "1/f" ranges typical of fast solar wind. We conclude that the strength of nonlinear interactions of individual fluctuations within a stream, diagnosed by the degree of correlation in direction and magnitude of magnetic and velocity fluctuations, determines the extent of the 1/f region observed, and thus the onset scale for the turbulent cascade.
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Journal articleWygant JR, Bonnell JW, Goetz K, et al., 2013,
The Electric Field and Waves Instruments on the Radiation Belt Storm Probes Mission
, SPACE SCIENCE REVIEWS, Vol: 179, Pages: 183-220, ISSN: 0038-6308- Author Web Link
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- Citations: 497
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Journal articleCoustenis A, Atreya S, Castillo J, et al., 2013,
Surfaces, atmospheres and magnetospheres of the outer planets and their satellites and ring systems: Part IX
, PLANETARY AND SPACE SCIENCE, Vol: 88, Pages: 1-2, ISSN: 0032-0633- Author Web Link
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- Citations: 1
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Journal articleYoung PJ, Archibald AT, Bowman KW, et al., 2013,
Pre-industrial to end 21st century projections of tropospheric ozone from the atmospheric chemistry and climate model intercomparison project (ACCMIP) (Atmospheric Chemistry and Physics (2013) 13, (2063-2090))
, Atmospheric Chemistry and Physics, Vol: 13, Pages: 5401-5402, ISSN: 1680-7316- Cite
- Citations: 6
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Journal articleAlexandrova O, Bale SD, Lacombe C, 2013,
Comment on "Evidence of a Cascade and Dissipation of Solar-Wind Turbulence at the Electron Gyroscale"
, PHYSICAL REVIEW LETTERS, Vol: 111, ISSN: 0031-9007- Author Web Link
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- Citations: 10
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Book chapterSibeck DG, Angelopoulos V, Brain DA, et al., 2013,
ARTEMIS science objectives
, Artemis Mission, Pages: 27-59NASA's two spacecraft ARTEMIS mission will address both heliospheric and planetary research questions, first while in orbit about the Earth with the Moon and subsequently while in orbit about the Moon. Heliospheric topics include the structure of the Earth's magnetotail; reconnection, particle acceleration, and turbulence in the Earth's magnetosphere, at the bow shock, and in the solar wind; and the formation and structure of the lunar wake. Planetary topics include the lunar exosphere and its relationship to the composition of the lunar surface, the effects of electric fields on dust in the exosphere, internal structure of the Moon, and the lunar crustal magnetic field. This paper describes the expected contributions of ARTEMIS to these baseline scientific objectives.
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Journal articleGrasset O, Bunce EJ, Coustenis A, et al., 2013,
Review of Exchange Processes on Ganymede in View of Its Planetary Protection Categorization
, ASTROBIOLOGY, Vol: 13, Pages: 991-1004, ISSN: 1531-1074- Author Web Link
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- Citations: 17
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Journal articleSchwartz SJ, Zweibel EG, Goldman M, 2013,
Microphysics in Astrophysical Plasmas
, SPACE SCIENCE REVIEWS, Vol: 178, Pages: 81-99, ISSN: 0038-6308- Author Web Link
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- Citations: 8
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Journal articleHeaviside C, Czaja A, 2013,
Deconstructing the Hadley cell heat transport
, QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, Vol: 139, Pages: 2181-2189, ISSN: 0035-9009- Author Web Link
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- Citations: 24
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Journal articleKrasnoselskikh V, Balikhin M, Walker SN, et al., 2013,
The Dynamic Quasiperpendicular Shock: Cluster Discoveries
, SPACE SCIENCE REVIEWS, Vol: 178, Pages: 535-598, ISSN: 0038-6308- Author Web Link
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- Citations: 103
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Journal articleBalogh A, Bykov A, Cargill P, et al., 2013,
Microphysics of Cosmic Plasmas: Background, Motivation and Objectives
, SPACE SCIENCE REVIEWS, Vol: 178, Pages: 77-80, ISSN: 0038-6308- Author Web Link
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- Citations: 2
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Journal articleWielicki BA, Young DF, Mlynczak MG, et al., 2013,
Achieving Climate Change Absolute Accuracy in Orbit
, BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, Vol: 94, Pages: 1519-1539, ISSN: 0003-0007- Cite
- Citations: 221
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Journal articleKirschke S, Bousquet P, Ciais P, et al., 2013,
Three decades of global methane sources and sinks
, NATURE GEOSCIENCE, Vol: 6, Pages: 813-823, ISSN: 1752-0894- Cite
- Citations: 1631
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Journal articleGhavamian P, Schwartz SJ, Mitchell J, et al., 2013,
Electron-Ion Temperature Equilibration in Collisionless Shocks: The Supernova Remnant-Solar Wind Connection
, SPACE SCIENCE REVIEWS, Vol: 178, Pages: 633-663, ISSN: 0038-6308- Cite
- Citations: 91
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Journal articlePhan TD, Shay MA, Gosling JT, et al., 2013,
Electron bulk heating in magnetic reconnection at Earth's magnetopause: Dependence on the inflow Alfven speed and magnetic shear
, GEOPHYSICAL RESEARCH LETTERS, Vol: 40, Pages: 4475-4480, ISSN: 0094-8276- Author Web Link
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- Citations: 115
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Conference paperNave G, Sansonetti CJ, Pickering JC, et al., 2013,
Atomic data for iron-group elements of astrophysical interest
, Pages: 27-31, ISSN: 0094-243XThe joint project between NIST and Imperial College London to measure spectra of singly-ionized iron-group elements using Fourier transform and high-resolution grating spectroscopy is described. © 2013 AIP Publishing LLC.
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Journal articleGraven HD, Keeling RF, Piper SC, et al., 2013,
Enhanced Seasonal Exchange of CO<sub>2</sub> by Northern Ecosystems Since 1960
, SCIENCE, Vol: 341, Pages: 1085-1089, ISSN: 0036-8075- Cite
- Citations: 323
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Journal articleSnowden D, Yelle RV, Galand M, et al., 2013,
Auroral electron precipitation and flux tube erosion in Titan's upper atmosphere
, ICARUS, Vol: 226, Pages: 186-204, ISSN: 0019-1035- Author Web Link
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- Citations: 20
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Journal articleBanks JR, Brindley HE, Flamant C, et al., 2013,
Intercomparison of satellite dust retrieval products over the west African Sahara during the Fennec campaign in June 2011
, REMOTE SENSING OF ENVIRONMENT, Vol: 136, Pages: 99-116, ISSN: 0034-4257- Author Web Link
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- Citations: 50
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Journal articleBale SD, 2013,
Robert Peichung Lin obituary
, PHYSICS TODAY, Vol: 66, Pages: 59-59, ISSN: 0031-9228 -
Journal articleLe Chat G, Zaslavsky A, Meyer-Vernet N, et al., 2013,
Interplanetary Nanodust Detection by the <i>Solar Terrestrial Relations Observatory</i>/WAVES Low Frequency Receiver
, SOLAR PHYSICS, Vol: 286, Pages: 549-559, ISSN: 0038-0938- Cite
- Citations: 15
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Journal articleZhang YC, Shen C, Liu ZX, et al., 2013,
Two different types of plasmoids in the plasma sheet: Cluster multisatellite analysis application
, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 118, Pages: 5437-5444, ISSN: 2169-9380- Author Web Link
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- Citations: 20
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Journal articleAlexandrova O, Chen CHK, Sorriso-Valvo L, et al., 2013,
Solar Wind Turbulence and the Role of Ion Instabilities
, Space Science Reviews, Vol: 178, Pages: 101-139, ISSN: 0038-6308 -
Journal articleRuffoni MP, Pickering JC, 2013,
ACCURATE RITZ WAVELENGTHS OF PARITY-FORBIDDEN [Co II] AND [V II] LINES OF ASTROPHYSICAL INTEREST
, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, Vol: 207, ISSN: 0067-0049- Author Web Link
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- Citations: 3
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Journal articleVigren E, Galand M, 2013,
PREDICTIONS OF ION PRODUCTION RATES AND ION NUMBER DENSITIES WITHIN THE DIAMAGNETIC CAVITY OF COMET 67P/CHURYUMOV-GERASIMENKO AT PERIHELION
, ASTROPHYSICAL JOURNAL, Vol: 772, ISSN: 0004-637X- Cite
- Citations: 48
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Journal articleCargill PJ, Bradshaw SJ, 2013,
THE COOLING OF CORONAL PLASMAS. IV. CATASTROPHIC COOLING OF LOOPS
, ASTROPHYSICAL JOURNAL, Vol: 772, ISSN: 0004-637X- Author Web Link
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- Citations: 30
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Journal articleSchepanski K, Flamant C, Chaboureau J-P, et al., 2013,
Characterization of dust emission from alluvial sources using aircraft observations and high-resolution modeling
, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, Vol: 118, Pages: 7237-7259, ISSN: 2169-897X- Author Web Link
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- Citations: 22
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Journal articleSornig M, Sonnabend G, Stupar D, et al., 2013,
Venus' upper atmospheric dynamical structure from ground-based observations shortly before and after Venus' inferior conjunction 2009
, ICARUS, Vol: 225, Pages: 828-839, ISSN: 0019-1035- Author Web Link
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- Citations: 11
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Journal articleMasters A, Slavin JA, DiBraccio GA, et al., 2013,
A comparison of magnetic overshoots at the bow shocks of Mercury and Saturn
, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 118, Pages: 4381-4390, ISSN: 2169-9380- Author Web Link
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- Citations: 21
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