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201. Book Reviews

Author

Thor, D. H., Kantor, J. R., Rice, H. K., Lundin, R. W., Morris, J. P., Pillard, R. C., Leuba, C., Neimark, Edith, Pronko, N. H., Cardno, J. A., Mountjoy, P. T., and McMichael, James S.

Published
1966
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202. Book Reviews

Author

Leuba, C., Cardno, J. A., Lundin, R. W., McMichael, J. S., Pronko, N. H., Kantor, J. R., Lichtenstein, P. E., and Leuba, Clarence

Published
1966
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204. Book Reviews

Author

Mc-Reynolds, Paul, Mink, W. D., Cardno, J. A., Leuba, Clarence, Kantor, J. R., Woodyard, David O., Lundin, R. W., and Wolf, Irvin S.

Published
1968
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205. Evolution of the ion environment of comet 67P/Churyumov-Gerasimenko

Author

Nilsson, H., primary, Stenberg Wieser, G., additional, Behar, E., additional, Simon Wedlund, C., additional, Kallio, E., additional, Gunell, H., additional, Edberg, N. J. T., additional, Eriksson, A. I., additional, Yamauchi, M., additional, Koenders, C., additional, Wieser, M., additional, Lundin, R., additional, Barabash, S., additional, Mandt, K., additional, Burch, J. L., additional, Goldstein, R., additional, Mokashi, P., additional, Carr, C., additional, Cupido, E., additional, Fox, P. T., additional, Szego, K., additional, Nemeth, Z., additional, Fedorov, A., additional, Sauvaud, J.-A., additional, Koskinen, H., additional, Richter, I., additional, Lebreton, J.-P., additional, Henri, P., additional, Volwerk, M., additional, Vallat, C., additional, and Geiger, B., additional

Published
2015
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209. Venusian Bow Shock as Seen by the ASPERA-4 Ion Instrument on Venus Express

Author

Whittaker, I., Guymer, G., Grande, M., Pinter, B., Barabash, S., Federov, A., Mazelle, C., Sauvaud, J.-A., Lundin, R., Russell, C. T., Franz, M., Zhang, T. L., Andersson, H., Grigoriev, A., Holmstrom, M., Yamauchi, M., Baumjohann, W., Lammer, H., Coates, A. J., Kataria, D. O., Linder, D. R., Curtis, C. C., Hsieh, K. C., Koskinen, H. E. J., Kallio, E., Riihela, P., Schmidt, W., Kozyra, J., Futaana, Y., and Asamura, Kazushi

Abstract

著者人数: 43名, Accepted: 2010-04-28, 資料番号: SA1002733000

Published
2010

210. Requisite Variety and Decision Making in Complex Projects

Author

Lundin, R, Hallgren, M, Remington, K, Pollack, JB, Lundin, R, Hallgren, M, Remington, K, and Pollack, JB

Abstract

Project leaders real responsible for making decisions in contexts where at least some parameters are unknown, and even unknowable. Decisions from which critical actions ensue are made under extreme pressure of time and often without access to sufficient or relevant information. Debates promulgating the virtues of simplicity over complexity, and vice versa, have in one form or another been running for thousands of years, although the urge towards simplification continues to dominate scientific research and management (including project management ) practice. However, the current resurgence of interest in complexity, particularly in the light of recent world events that can only be explained by nonlinearity and emergence, provides renewed emphasis for a discussion about how we tackle difficult issues under conditions characterized by nonlinearity and emergence. Nonetheless, the general management, project management, and professional literatures tend to maintain an emphasis on the virtues of simplification of both the problem definition and its solution. This chapter provides a counterpoint, through discussion of persistent themes of reuisite variety within the philosophy of science, before discussing how these ideas can inform decision making in complex contexts. The literature is then consolidated to explore necessary conditions for robust decision-making in complex projects.

Published
2014

211. Ionospheric storms on Mars

Author

Dubinin, E., Fraenz, M., Woch, J., Duru, F., Gurnett, D., Modolo, Ronan, Barabash, S., Lundin, R., Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research (MPS), Max-Planck-Gesellschaft, Department of Physics and Astronomy [Iowa City], University of Iowa [Iowa City], HELIOS - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and Swedish Institute of Space Physics [Kiruna] (IRF)

Subjects
[SDU]Sciences of the Universe [physics]
Abstract

International audience; Measurements made by the ASPERA-3 and MARSIS experiments on Mars Express have shown that space weather effects related to the impact of a dense and high pressure solar wind on Mars cause strong perturbations in the martian induced magnetosphere and ionosphere. The magnetic barrier formed by pile-up of the draped interplanetary magnetic field ceases to be a shield for the incoming solar wind. Large blobs of solar wind plasma penetrate to the magnetosphere and sweep out dense plasma from the ionosphere. The topside martian ionosphere becomes very fragmented consisting of intermittent cold/low energy and energized plasmas. The scavenging effect caused by the intrusions of solar wind plasma clouds enhances significantly the losses of volatile material from Mars.

Published
2009

212. Observations of Past Lunar Landing Sites by the D-CIXS X-Ray Spectrometer on SMART-1

Author

Grande, M., Kellett, B. J., Howe, C., Perry, C. H., Swinyard, B., Dunkin, S., Huovelin, J., Alha, L., D'Uston, L. C., Maurice, S., Gasnault, O., Barabash, S., Joy, K. H., Crawford, I. A., Lawrence, D., Fernandes, V., Casanova, I., Wieczorek, M., Thomas, N., Mall, U., Foing, B., Hughes, D., Alleyne, H., Russell, S., Grady, M., Lundin, R., Baker, D., Murray, C. D., Guest, J., and Christou, A.

Abstract

D-CIXS initial observations show a first unambiguous remote sensing of calcium in the lunar regolith. Data obtained are broadly consistent with current understanding of mare and highland composition. Ground truth is provided by the returned Apollo and Luna sample sets.

Published
2007

215. The HIA instrument on board the Tan Ce 1 Double Star near-equatorial spacecraft and its first results

Author

Rème, H., Dandouras, I., Aoustin, C., Bosqued, J. M., Sauvaud, J. A., Vallat, C., Escoubet, P., Cao, J. B., Shi, J., Bavassano-Cattaneo, M. B., Parks, G. K., Carlson, C. W., Pu, Z., Klecker, B., Moebius, E., Kistler, L., Korth, A., Lundin, R., the HIA team, Centre d'étude spatiale des rayonnements (CESR), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, European Space Research and Technology Centre (ESTEC), European Space Agency (ESA), Center for Space Science and Applied Research [Beijing] (CSSAR), Chinese Academy of Sciences [Beijing] (CAS), Istituto di Fisica dello Spazio Interplanetario (IFSI), Consiglio Nazionale delle Ricerche (CNR), Space Sciences Laboratory [Berkeley] (SSL), University of California [Berkeley], University of California-University of California, Peking University [Beijing], Max-Planck-Institut für Extraterrestrische Physik (MPE), University of New Hampshire (UNH), Max Planck Institute for Solar System Research (MPS), Max-Planck-Gesellschaft, Swedish Institute of Space Physics [Kiruna] (IRF), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Agence Spatiale Européenne = European Space Agency (ESA), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), University of California [Berkeley] (UC Berkeley), University of California (UC)-University of California (UC), and Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research (MPS)

Subjects
Atmospheric Science, 010504 meteorology & atmospheric sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, 01 natural sciences, 7. Clean energy, symbols.namesake, Magnetosheath, 0103 physical sciences, Earth and Planetary Sciences (miscellaneous), lcsh:Science, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences, Geomagnetic storm, Physics, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, Spacecraft, business.industry, lcsh:QC801-809, Plasma sheet, Astronomy, Geology, Astronomy and Astrophysics, Geophysics, Bow shocks in astrophysics, lcsh:QC1-999, Solar wind, lcsh:Geophysics. Cosmic physics, 13. Climate action, Space and Planetary Science, Van Allen radiation belt, Physics::Space Physics, symbols, Magnetopause, lcsh:Q, Astrophysics::Earth and Planetary Astrophysics, business, lcsh:Physics
Abstract

On 29December 2003, the Chinese spacecraft TanCe1 (TC-1), the first component of the Double Star mission, was successfully launched within a low-latitude eccentric orbit. In the framework of the scientific cooperation between the Academy of Sciences of China and ESA, several European instruments, identical to those developed for the Cluster spacecraft, were installed on board this spacecraft. The HIA (Hot Ion Analyzer) instrument on board the TC-1 spacecraft is an ion spectrometer nearly identical to the HIA sensor of the CIS instrument on board the 4 Cluster spacecraft. This instrument has been specially adapted for TC-1. It measures the 3-D distribution functions of the ions between 5 eV/q and 32 keV/q without mass discrimination. TC-1 is like a fifth Cluster spacecraft to study the interaction of the solar wind with the magnetosphere and to study geomagnetic storms and magnetospheric substorms in the near equatorial plane. HIA was commissioned in February 2004. Due to the 2 RE higher apogee than expected, some in-flight improvements were needed in order to use HIA in the solar wind in the initial phase of the mission. Since this period HIA has obtained very good measurements in the solar wind, the magnetosheath, the dayside and nightside plasma sheet, the ring current and the radiation belts. We present here the first results in the different regions of the magnetosphere and in the solar wind. Some of them are very new and include, for example, ion dispersion structures in the bow shock and ion beams close to the magnetopause. The huge interest in the orbit of TC-1 is strongly demonstrated.

Published
2005

216. Aurora on Mars – The result of Plasma Acceleration above Martian Magnetic Anomalies

Author

Lundin, R., Winningham, D., Barabash, S., Frahm, R., Brain, D., Nillson, H., Holmström, M., Yamauchi, M., J. R., Sharber, J. A., Sauvaud, Fedorov, A., Budnik, E., Asamura, K., Hayakawa, H., Coates, A., D. R., Linder, D. O., Kataria, Curtis, C., K. C., Hsieh, Sandel, B. R., Grande, M., Carter, M., D. H., Reading, Koskine, H., Kallio, E., Säles, T., Kozyra, J., Krupp, N., Woch, J., Fraenz, M., Luhmann, J., Mckenna-Lawlor, S., Cerulli-Irelli, R., Orsini, S., Maggi, M., Roelof, E., Livi, S., P. Wurz P., Brandt, Bochler, P., Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), and Université Fédérale Toulouse Midi-Pyrénées

Subjects
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]
Published
2005

217. Bouncing ion clusters in the plasma sheet boundary layer observed by Cluster-CIS

Author

Keiling, A., K. Parks, G., Rème, H., Dandouras, J., M. Bosqued, J., Wilber, M., Mccarthy, M., Mouikis, C., Amata, E., Klecker, B., Korth, A., Lundin, R., U. Frey, H., Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), and Université Fédérale Toulouse Midi-Pyrénées

Subjects
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], Physics::Space Physics
Abstract

We report on ion beams injected into the plasma sheet boundary layer (at or near the separatrix) at distances >39 R E and up to 169 R E that bounced several times back and forth (up to three echoes) while remaining in coherent bunches before thermalizing in the central plasma sheet. These bouncing ion clusters (BIC) interacted with the far-tail current sheet with a possible curvature parameter, k, of less than 2. The existence of these BIC shows that ion beams can interact several times nonadiabatically with the far-tail current sheet and still remain coherent. Owing to the large-scale E Â B drift, echoes also appeared in the central plasma sheet (CPS) after several bounces. The echoes had higher energies compared with the initially injected ion cluster which can be attributed to additional nonadiabatic acceleration during their second and third interaction with the tail current sheet. After multiple bounces, the ion cluster became thermalized isotropic plasma mixing with the CPS. The three BIC events presented here were identified on the basis of the energy dispersion slopes associated with the ions. Simple model calculations showed, however, that in the case of these far-tail ion injections the 1:3:5:etc.-ratios of travel distances for echoes, used as diagnostics for near-Earth adiabatic BIC, are not valid. This is largely due to a significant shortening of the tail field lines, caused by earthward convection, during the large ion travel times. The model calculations also reproduced newly observed properties such as concave dispersion slopes for the echoes. Furthermore, we argue here that the energy dispersion of the BIC was dominated by a time-of-flight effect. The injection region for the three BIC events, determined on the basis of this time-of-flight interpretation, covered broad ranges of DX (GSE) = 26-40 R E. Two BIC events occurred during the substorm recovery phase; the other BIC event occurred during quiet geomagnetic activity. For two BIC events, UV images were available showing that they were magnetically connected to the poleward arc of the double oval. One BIC event was also conjugate to a small active region inside the poleward arc. We conclude that these nonadiabatic BIC are different from the adiabatic BIC that are routinely reported in the CPS.

Published
2005

218. Shell-like configuration in O+ ion velocity distribution at high altitudes in the dayside magnetosphere observed by Cluster/CIS

Author

Joko, S., Nilsson, H., Lundin, R., Barbara Popielawska, Rème, H., Bavassano-Cattaneo, M. B., Paschmann, G., Korth, A., Kistler, L. M., Parks, G. K., Swedish Institute of Space Physics [Kiruna] (IRF), Space Research Centre of Polish Academy of Sciences (CBK), Polska Akademia Nauk = Polish Academy of Sciences (PAN), Centre d'étude spatiale des rayonnements (CESR), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Instituto di Fisica dello Spazio Interplanetario, Max-Planck-Institut für Extraterrestrische Physik (MPE), Max-Planck-Institut für Aeronomie (MPI Aeronomie), Max-Planck-Gesellschaft, University of New Hampshire (UNH), Space Sciences Laboratory [Berkeley] (SSL), University of California [Berkeley], University of California-University of California, Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), University of California [Berkeley] (UC Berkeley), and University of California (UC)-University of California (UC)

Subjects
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, lcsh:Geophysics. Cosmic physics, lcsh:QC801-809, Physics::Space Physics, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, lcsh:Q, Astrophysics::Earth and Planetary Astrophysics, lcsh:Science, lcsh:Physics, lcsh:QC1-999
Abstract

International audience; We report shell-like configurations seen in O+ ion velocity distributions. One case was observed above 8RE in radial distance in the dayside magnetosphere, presumably in the mantle region, during the observation period of 09:30-10:00 UT on 12 April 2001 by the CIS instrument on board the Cluster satellite. This shell-like configuration was different from so-called "conics" or "beams": the lower energy (cold) population and the higher energy partial shell part were seen together, but there was no obvious signature of heating process. With respect to H+ ion velocity distributions observed simultaneously, transverse heating (so-called in "pan-cake" shape) or field-aligned energisation configurations were seen as the result of heating/energisation processes and the upward-going part of the distribution also formed a half spherical thick shell configuration. Concerning O+ ion heating in the case of 12 April 2001, it was obviously observed when the spacecraft passed through the mantle region close to the poleward cusp. As the spacecraft moved toward the dayside cusp shell-like (or dome shape) velocity distributions appeared apparently and continued to be observed until the spacecraft reached the magnetopause according to two other different cases (13 February 2001 and 14 April 2001). Two other cases were observed in the Southern Hemisphere and the spacecraft was supposed to pass through the dayside cusp toward the mantle region at higher altitudes (9-11RE). O+ ion velocity distributions in these cases show pre-/post-structured shell-like configurations, depending on the observation sites (mantle or dayside cusp).

Published
2004

219. The structure of high altitude O+ energization and outflow: a case study

Author

Nilsson, H., Joko, S., Lundin, R., Rème, H., Sauvaud, J. -A, Iannis Dandouras, Balogh, A., Carr, C., Kistler, L. M., Klecker, B., Carlson, C. W., Bavassano-Cattaneo, M. B., Korth, A., Swedish Institute of Space Physics [Kiruna] (IRF), Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Imperial College of Science, University of New Hampshire (UNH), Max-Planck-Institut für Extraterrestrische Physik (MPE), Space Sciences Laboratory [Berkeley] (SSL), University of California [Berkeley] (UC Berkeley), University of California (UC)-University of California (UC), Instituto di Fisica dello Spazio Interplanetario, Max-Planck-Institut für Aeronomie (MPI Aeronomie), Max-Planck-Gesellschaft, Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, University of California [Berkeley], and University of California-University of California

Subjects
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, lcsh:Geophysics. Cosmic physics, lcsh:QC801-809, Physics::Space Physics, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, lcsh:Q, Astrophysics::Earth and Planetary Astrophysics, lcsh:Science, lcsh:Physics, lcsh:QC1-999
Abstract

International audience; Multi-spacecraft observations from the CIS ion spectrometers on board the Cluster spacecraft have been used to study the structure of high-altitude oxygen ion energization and outflow. A case study taken from 12 April 2004 is discussed in more detail. In this case the spacecraft crossed the polar cap, mantle and high-altitude cusp region at altitudes between 4RE and 8RE and 2 of the spacecraft provided data. The oxygen ions were seen as a beam with narrow energy distribution, and increasing field-aligned velocity and temperature at higher altitude further in the upstream flow direction. The peak O+ energy was typically just above the highest energy of observed protons. The observed energies reached the upper limit of the CIS ion spectrometer, i.e. 38keV. Moment data from the spacecraft have been cross-correlated to determine cross-correlation coefficients, as well as the phase delay between the spacecraft. Structures in ion density, temperature and field-aligned flow appear to drift with the observed field-perpendicular drift. This, together with a velocity dispersion analysis, indicates that much of the structure can be explained by transverse heating well below the spacecraft. However, temperature isotropy and the particle flux as a function of field-aligned velocity are inconsistent with a single altitude Maxwellian source. Heating over extended altitude intervals, possibly all the way up to the observation point, seem consistent with the observations.

Published
2004

220. Lunar elemental composition and ivestigations with D-CIXS x-ray mapping spectrometer on SMART-1

Author

Grande, M., Dunkin, S., Howe, C., Browning, R., Kellett, B., Perry, C. H., Swinyard, B., Waltham, N., Kent, B., Huovenin, J., Thomas, N., Mal, U., Hughes, D., Alleyne, H., Russell, S., Grady, M., Lundin, R., Barabash, S., Baker, D., Murray, C. D., Guest, J., Casanova, I., Maurice, S., and Foing, B.

Abstract

The D-CIXS Compact X-ray Spectrometer on ESA SMART-1 successfully launched in Sept 2003 can derive 45 km resolution images of the Moon with a spectral resolution of 185 eV, providing the first high-resolution global map of rock forming element abundances.

Published
2004

222. Cluster Observes the High-Altitude Cusp Region

Author

Lavraud, B., primary, Réme, H., additional, Dunlop, M. W., additional, Bosqued, J.-M., additional, Dandouras, I., additional, Sauvaud, J.-A., additional, Keiling, A., additional, Phan, T. D., additional, Lundin, R., additional, Cargill, P. J., additional, Escoubet, C. P., additional, Carlson, C. W., additional, McFadden, J. P., additional, Parks, G. K., additional, Moebius, E., additional, Kistler, L. M., additional, Amata, E., additional, Bavassano-Cattaneo, M.-B., additional, Korth, A., additional, Klecker, B., additional, and Balogh, A., additional

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226. Viral Load Detection Using Dried Blood Spots in a Cohort of HIV-1-Infected Children in Uganda: Correlations with Clinical and Immunological Criteria for Treatment Failure

Author

Costenaro, P., primary, Lundin, R., additional, Petrara, M. R., additional, Penazzato, M., additional, Massavon, W., additional, Kizito, S., additional, Nabachwa, S. M., additional, Nannyonga Musoke, M., additional, Namisi, C., additional, Morelli, E., additional, Bilardi, D., additional, Mazza, A., additional, Zanchetta, M., additional, Giaquinto, C., additional, and De Rossi, A., additional

Published
2014
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227. Factors Determining Survival and Retention among HIV-Infected Children and Adolescents in a Community Home-Based Care and a Facility-Based Family-Centred Approach in Kampala, Uganda: A Cohort Study

Author

Massavon, W., primary, Barlow-Mosha, L., additional, Mugenyi, L., additional, McFarland, W., additional, Gray, G., additional, Lundin, R., additional, Costenaro, P., additional, Nannyonga, M. M., additional, Penazzato, M., additional, Bagenda, D., additional, Namisi, C. P., additional, Wabwire, D., additional, Mubiru, M., additional, Kironde, S., additional, Bilardi, D., additional, Mazza, A., additional, Fowler, M. G., additional, Musoke, P., additional, and Giaquinto, C., additional

Published
2014
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230. First measurement of the ionospheric plasma escape from Mars

Author

Lundin, R., Zakharov, A., Pellinen, R., Borg, H., Hultqvist, B., Pissarenko, N., Dubinin, E.M., Barabash, S.W., Liede, I., and Koskinen, H.

Subjects
Magnetosphere -- Research, Plasma waves -- Research, Mars (Planet) -- Atmosphere, Environmental issues, Science and technology, Zoology and wildlife conservation
Published
1989

231. Energy distribution asymmetry of electron precipitation signatures at Mars

Author

Soobiah, Yasir, Barabash, S., Nilsson, H., Stenberg, G., Lundin, R., Coates, A. J., Winningham, J.D., Frahm, R.A., Soobiah, Yasir, Barabash, S., Nilsson, H., Stenberg, G., Lundin, R., Coates, A. J., Winningham, J.D., and Frahm, R.A.

Abstract

The different types of asymmetry observed in the energy distributions of electrons and heavy-ions (M/Q=16-44) during signatures of electron precipitation in the Martian ionosphere have been classified. This has been achieved using the space plasma instrumentation of MEX ASPERA-3 from peri-centre altitude to 2200 km. ASPERA-3 ELS observes signatures of electron precipitation on 43.0% of MEX orbits. Unaccelerated electrons in the form of sudden electron flux enhancements are the most common type of electron precipitation signature at Mars and account for ˜70% of the events observed in this study. Electrons that form unaccelerated electron precipitation signatures are either local ionospheric electrons with enhanced density, or electrons transported from another region of ionosphere, solar wind or tail, or a combination of local and transported electrons. The heating of electrons has a strong influence on the shape of most electron energy spectra from accelerated precipitation signatures. On most occasions the general flow of heavy-ions away from Mars is unchanged during the precipitation of electrons, which is thought to be the result of the finite gyroradius effect of the heavy-ions on crustal magnetic field lines. Only ˜17% of events show some form of heavy-ion acceleration that is either concurrent or at the periphery of an electron precipitation signature. The most common combination of electron and heavy-ion energy distributions for signatures of electron precipitation involves electrons that visually have very little asymmetry or are isotropic and heavy-ions that have a upward net flux, and suggest the upward current associated with aurora. Due to a lack of reliable measurements of electrons travelling towards Mars, it is likely we miss further evidence of upward currents. The second most common combination of electron and heavy-ion energy distributions for signatures of electron precipitation, are those distributions of electrons that are asymmetric and have an

Published
2013

232. Temporary organizations and end states: A theory is a child of its time and in need of reconsideration and reconstruction

Author

Lundin, R A, Söderholm, Anders, Lundin, R A, and Söderholm, Anders

Abstract

PurposeThe purpose of this paper is to respond to the research note on the article “A theory on temporary organizations” by reminding readers about the lack of timelessness in the social sciences and alluding to some alternative theory formulations. Design/methodology/approachBy describing/analyzing the context within which “A theory” was developed, the notion that any theory is a child of its time is explicated. Thus, an understanding for the need for reconsideration and reconstruction in social science theory is created. FindingsA necessary step in the work is to come up with ideas as to how crucial elements get transformed and is related to social development. The argument is that when it comes to the use of the word project is under change which creates a tension as to the appropriate realm for a theory of temporary organizations. A theory building on the notion of end state appears to be useful. Practical implicationsA theory incorporating the notion of end state opens up for new ideas on how to manage projects. The traditional project management guidelines might inhibit good solutions to focused behavior. An end state approach is more open for changes in the environment and in ambitions. Originality/valueThe theme opens up for less rigid approaches in relation to traditional project management. The crucial role that planning beforehand is considered to have will be transformed to other mechanisms, triggering planning and rethink.

Published
2013

233. Solar cycle effects on the ion escape from Mars

Author

Lundin, R., primary, Barabash, S., additional, Holmström, M., additional, Nilsson, H., additional, Futaana, Y., additional, Ramstad, R., additional, Yamauchi, M., additional, Dubinin, E., additional, and Fraenz, M., additional

Published
2013
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236. Plasma penetration of the dayside magnetopause

Author

Gunell, H., Nilsson, H., Stenberg, G., Hamrin, M., Karlsson, T., Maggiolo, R., André, Mats, Lundin, R., Dandouras, I., Gunell, H., Nilsson, H., Stenberg, G., Hamrin, M., Karlsson, T., Maggiolo, R., André, Mats, Lundin, R., and Dandouras, I.

Abstract

Data from the Cluster spacecraft during their magnetopause crossing on 25 January 2002 are presented. The magnetopause was in a state of slow non-oscillatory motion during the observational period. Coherent structures of magnetosheath plasma, here typified as plasmoids, were seen on closed magnetic field lines on the inside of the magnetopause. Using simultaneous measurements on two spacecraft, the inward motion of the plasmoids is followed from one spacecraft to the next, and it is found to be in agreement with the measured ion velocity. The plasma characteristics and the direction of motion of the plasmoids show that they have penetrated the magnetopause, and the observations are consistent with the concept of impulsive penetration, as it is known from theory, simulations, and laboratory experiments. The mean flux across the magnetopause observed was 0.2%-0.5% of the solar wind flux at the time, and the peak values of the flux inside the plasmoids reached approximately 20% of the solar wind flux.

Published
2012
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237. Sverige bör satsa på ny kärnkraft

Author

Kullander, S., Destouni, G., Frank, H., Fredga, K., Fredholm, B., Grandin, K., Hedberg, D., Lundin, R., Kullander, S., Destouni, G., Frank, H., Fredga, K., Fredholm, B., Grandin, K., Hedberg, D., and Lundin, R.

Abstract

Brännpunkt, Svenska Dagbladet, May 3, 2010.

Published
2010

238. Ny teknik minskar uranbrytningen

Author

Kullander, S., Destouni, G., Frank, H., Fredholm, B., Grandin, K., Hedberg, D., Lundin, R., Kullander, S., Destouni, G., Frank, H., Fredholm, B., Grandin, K., Hedberg, D., and Lundin, R.

Abstract

Brännpunkt replik, Svenska Dagbladet, May 12, 2010.

Published
2010

239. Rosetta and Mars Express observations of the influence of high solar wind pressure on the Martian plasma environment

Author

Edberg, Niklas, Auster, U., Barabash, S., Boesswetter, A., Brain, D. A., Burch, J. L., Carr, C. M., Cowley, S. W. H., Cupido, E., Duru, F., Eriksson, Anders, Fraenz, M., Glassmeier, K. -H, Goldstein, R., Lester, M., Lundin, R., Modolo, R., Nilsson, H., Richter, I., Samara, M., Trotignon, J. G., Edberg, Niklas, Auster, U., Barabash, S., Boesswetter, A., Brain, D. A., Burch, J. L., Carr, C. M., Cowley, S. W. H., Cupido, E., Duru, F., Eriksson, Anders, Fraenz, M., Glassmeier, K. -H, Goldstein, R., Lester, M., Lundin, R., Modolo, R., Nilsson, H., Richter, I., Samara, M., and Trotignon, J. G.

Abstract

We report on new simultaneous in-situ observations at Mars from Rosetta and Mars Express (MEX) on how the Martian plasma environment is affected by high pressure solar wind. A significant sharp increase in solar wind density, magnetic field strength and turbulence followed by a gradual increase in solar wind velocity is observed during similar to 24 h in the combined data set from both spacecraft after Rosetta's closest approach to Mars on 25 February 2007. The bow shock and magnetic pileup boundary are coincidently observed by MEX to become asymmetric in their shapes. The fortunate orbit of MEX at this time allows a study of the inbound boundary crossings on one side of the planet and the outbound crossings on almost the opposite side, both very close to the terminator plane. The solar wind and interplanetary magnetic field (IMF) downstream of Mars are monitored through simultaneous measurements provided by Rosetta. Possible explanations for the asymmetries are discussed, such as crustal magnetic fields and IMF direction. In the same interval, during the high solar wind pressure pulse, MEX observations show an increased amount of escaping planetary ions from the polar region of Mars. We link the high pressure solar wind with the observed simultaneous ion outflow and discuss how the pressure pulse could also be associated with the observed boundary shape asymmetry.

Published
2009
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240. Simultaneous measurements of Martian plasma boundaries by Rosetta and Mars Express

Author

Edberg, Niklas J. T., Eriksson, Anders I., Auster, U., Barabash, S., Boesswetter, A., Carr, C. M., Cowley, S. W. H., Cupido, E., Fraenz, M., Glassmeier, K. -H, Goldstein, R., Lester, M., Lundin, R., Modolo, Ronan, Nilsson, H., Richter, I., Samara, M., Trotignon, J. G., Edberg, Niklas J. T., Eriksson, Anders I., Auster, U., Barabash, S., Boesswetter, A., Carr, C. M., Cowley, S. W. H., Cupido, E., Fraenz, M., Glassmeier, K. -H, Goldstein, R., Lester, M., Lundin, R., Modolo, Ronan, Nilsson, H., Richter, I., Samara, M., and Trotignon, J. G.

Abstract

We present the first two-spacecraft near-simultaneous observations of the Martian bow shock (BS), magnetic pileup boundary (MPB) and photo-electron boundary (PEB) obtained by the plasma instruments onboard Rosetta and Mars Express during the Rosetta Mars fly by on February 25, 2007. Our observations are compared with shape models for the BS and MPB derived from previous statistical studies. The MPB is found at its expected position but the BS for this event is found significantly closer to the planet than expected for the rather slow and moderately dense solar wind. Cross-calibration of the density measurements on the two spacecraft gives a density profile through the magnetosheath, indicating an increasing solar wind flux during the Rosetta passage which is consistent with the multiple BS crossings at the Rosetta exit.

Published
2009
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241. Magnetospheric solitary structure maintained by 3000 km/s ions as a cause of westward moving auroral bulge at 19 MLT

Author

Yamauchi, M., Dandouras, I., Daly, P. W., Stenberg, G., Frey, H. U., Lindqvist, Per-Arne, Ebihara, Y., Nilsson, H., Lundin, R., Reme, H., Andre, M., Kronberg, E. A., Balogh, A., Henderson, M., Yamauchi, M., Dandouras, I., Daly, P. W., Stenberg, G., Frey, H. U., Lindqvist, Per-Arne, Ebihara, Y., Nilsson, H., Lundin, R., Reme, H., Andre, M., Kronberg, E. A., Balogh, A., and Henderson, M.

Abstract

In the evening equatorial magnetosphere at about 4 R-E geocentric distance and 19 MLT, the four Cluster spacecraft observed a solitary structure with a width of about 1000 similar to 2000 km in the propagation direction. The solitary structure propagates sunward with about 5 similar to 10 km/s carrying sunward electric field (in the propagation direction) of up to about 10 mV/m (total potential drop of about 5 similar to 10 kV), depletion of magnetic field of about 25%, and a duskward E x B convection up to 50 km/s of He+ rich cold plasma without O+. At the same time, auroral images from the IMAGE satellite together with ground based geomagnetic field data showed a westward (sunward at this location) propagating auroral bulge at the magnetically conjugate ionosphere with the solitary structure. The solitary structure is maintained by flux enhancement of selectively 3000 km/s ions (about 50 keV for H+, 200 keV for He+, and 750 keV for O+). These ions are the main carrier of the diamagnetic current causing the magnetic depletion, whereas the polarization is maintained by different behavior of energetic ions and electrons. Corresponding to aurora, field-aligned accelerated ionospheric plasma of several keV appeared at Cluster from both hemispheres simultaneously. Together with good correspondence in location and propagation velocity between the auroral bulge and the solitary structure, this indicates that the sunward moving auroral bulge is caused by the sunward propagation of the solitary structure which is maintained by energetic ions. The solitary structure might also be the cause of Pi2-like magnetic variation that started simultaneously at Cluster location., QC 20100525

Published
2009
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246. Internal structure and spatial dimensions of whistler wave regions in the magnetopause boundary layer

Author

Stenberg, Gabriella, Oscarsson, T., André, Mats, Vaivads, Andris, Backrud-Ivgren, Marie, Khotyaintsev, Yuri, Rosenqvist, Lisa, Sahraoui, F., Cornilleau-Wehrlin, N., Fazakerley, A., Lundin, R., Décréau, P. M. E., Stenberg, Gabriella, Oscarsson, T., André, Mats, Vaivads, Andris, Backrud-Ivgren, Marie, Khotyaintsev, Yuri, Rosenqvist, Lisa, Sahraoui, F., Cornilleau-Wehrlin, N., Fazakerley, A., Lundin, R., and Décréau, P. M. E.

Abstract

We use whistler waves observed close to the mag-netopause as an instrument to investigate the internal struc-ture of the magnetopause-magnetosheath boundary layer. Wefind that this region is characterized by tube-like structureswith dimensions less than or comparable with an ion iner-tial length in the direction perpendicular to the ambient mag-netic field. The tubes are revealed as they constitute regionswhere whistler waves are generated and propagate. We be-lieve that the region containing tube-like structures extendseveral Earth radii along the magnetopause in the boundarylayer. Within the presumed wave generating regions we findcurrent structures moving at the whistler wave group velocityin the same direction as the waves.

Published
2007

247. Internal structure and spatial dimensions of whistler wave regions in the magnetopause boundary layer

Author

Stenberg, G., Oscarsson, T., Andre, M., Vaivads, Andris, Backrud-Ivgren, Marie, Khotyaintsev, Y., Rosenqvist, L., Sahraoui, F., Cornilleau-Wehrlin, N., Fazakerley, A., Lundin, R., Decreau, P. M. E., Stenberg, G., Oscarsson, T., Andre, M., Vaivads, Andris, Backrud-Ivgren, Marie, Khotyaintsev, Y., Rosenqvist, L., Sahraoui, F., Cornilleau-Wehrlin, N., Fazakerley, A., Lundin, R., and Decreau, P. M. E.

Abstract

We use whistler waves observed close to the magnetopause as an instrument to investigate the internal structure of the magnetopause-magnetosheath boundary layer. We find that this region is characterized by tube-like structures with dimensions less than or comparable with an ion inertial length in the direction perpendicular to the ambient magnetic field. The tubes are revealed as they constitute regions where whistler waves are generated and propagate. We believe that the region containing tube-like structures extend several Earth radii along the magnetopause in the boundary layer. Within the presumed wave generating regions we find current structures moving at the whistler wave group velocity in the same direction as the waves.

Published
2007
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249. Developing a digital data collection platform to measure the prevalence of sepsis in Wales.

Author

Sharif, B., Lundin, R. M., Morgan, P., Hall, J. E., Dhadda, A., Mann, C., Donoghue, D., Brownlow, E., Hill, F., Carr, G., Turley, H., Hassall, J., Atkinson, M., Jones, M., Martin, R., Rollason, S., Ibrahim, Y., Kopczynska, M., Szakmany, T., and Welsh Digital Data Collection Platform Collaborators (see Appendix A)

Abstract

Objective: To develop a secure, efficient, and easy-to-use data collection platform to measure the prevalence of sepsis in Wales over 24 hours.Materials and Methods: Open Data Kit was used on Android devices with Google App Engine and a digital data collection form.Results: A total of 184 students participated in the study using 59 devices across 16 hospitals, 1198 datasets were submitted, and 97% of participants found the Open Data Kit form easy to use.Discussion: We successfully demonstrated that by combining a reliable Android device, a free open-source data collection framework, a scalable cloud-based server, and a team of 184 medical students, we can deliver a low-cost, highly reliable platform that requires little training or maintenance, providing results immediately on completion of data collection.Conclusion: Our platform allowed us to measure, for the first time, the prevalence of sepsis in Wales over 24 hours. [ABSTRACT FROM AUTHOR]

Published
2016
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