Search Results - "MITCHELL, L. D"

Structure, dynamics, and seasonal variability of the Mars‐solar wind interaction: MAVEN Solar Wind Ion Analyzer in‐flight performance and science results by Halekas, J. S., Ruhunusiri, S., Harada, Y., Collinson, G., Mitchell, D. L., Mazelle, C., McFadden, J. P., Connerney, J. E. P., Espley, J. R., Eparvier, F., Luhmann, J. G., Jakosky, B. M.

“…We report on the in‐flight performance of the Solar Wind Ion Analyzer (SWIA) and observations of the Mars‐solar wind interaction made during the Mars…”
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Flows, Fields, and Forces in the Mars‐Solar Wind Interaction by Halekas, J. S., Brain, D. A., Luhmann, J. G., DiBraccio, G. A., Ruhunusiri, S., Harada, Y., Fowler, C. M., Mitchell, D. L., Connerney, J. E. P., Espley, J. R., Mazelle, C., Jakosky, B. M.

“…We utilize suprathermal ion and magnetic field measurements from the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission, organized by the upstream magnetic…”
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Ion Densities in the Nightside Ionosphere of Mars: Effects of Electron Impact Ionization by Girazian, Z., Mahaffy, P., Lillis, R. J., Benna, M., Elrod, M., Fowler, C. M., Mitchell, D. L.

“…We use observations from the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission to show how superthermal electron fluxes and crustal magnetic fields affect…”
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First results of the MAVEN magnetic field investigation by Connerney, J. E. P., Espley, J. R., DiBraccio, G. A., Gruesbeck, J. R., Oliversen, R. J., Mitchell, D. L., Halekas, J., Mazelle, C., Brain, D., Jakosky, B. M.

“…Two Mars Atmosphere and Volatile EvolutioN magnetic field sensors sample the ambient magnetic field at the outer edge of each solar array. We characterized…”
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Global simulations of ice nucleation and ice supersaturation with an improved cloud scheme in the Community Atmosphere Model by Gettelman, A., Liu, X., Ghan, S. J., Morrison, H., Park, S., Conley, A. J., Klein, S. A., Boyle, J., Mitchell, D. L., Li, J.-L. F.

“…A process‐based treatment of ice supersaturation and ice nucleation is implemented in the National Center for Atmospheric Research Community Atmosphere Model…”
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Ion Jets Within Current Sheets in the Martian Magnetosphere by Harada, Y., Halekas, J. S., Xu, S., DiBraccio, G. A., Ruhunusiri, S., Hara, T., Mcfadden, J. P., Espley, J. R., Mitchell, D. L., Mazelle, C.

“…Magnetic reconnection is often suggested to be implicated in a variety of dynamic phenomena observed in the complex magnetosphere of Mars. We present a first…”
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MAVEN‐STATIC Observations of Ion Temperature and Initial Ion Acceleration in the Martian Ionosphere by Hanley, K. G., Fowler, C. M., McFadden, J. P., Mitchell, D. L., Curry, S.

“…Though ion escape to space is an important mechanism for atmospheric loss at Mars, the processes that accelerate ions to escape velocity have not been fully…”
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Variations in Nightside Magnetic Field Topology at Mars by Brain, D. A., Weber, T., Xu, S., Mitchell, D. L., Lillis, R. J., Halekas, J. S., Espley, J., Jakosky, B. M.

“…The Martian plasma environment contains a complex magnetic topology, with contributions from the interplanetary magnetic field (IMF) and crustal magnetic…”
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Using Magnetic Topology to Probe the Sources of Mars' Nightside Ionosphere by Adams, D., Xu, S., Mitchell, D. L., Lillis, R. J., Fillingim, M., Andersson, L., Fowler, C., Connerney, J. E. P., Espley, J., Mazelle, C.

“…We combine thermal electron densities in Mars' ionosphere with magnetic topology information to investigate the sources of the nightside ionosphere. Thermal…”
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MAVEN Observations of Solar Wind‐Driven Magnetosonic Waves Heating the Martian Dayside Ionosphere by Fowler, C. M., Andersson, L., Ergun, R. E., Harada, Y., Hara, T., Collinson, G., Peterson, W. K., Espley, J., Halekas, J., Mcfadden, J., Mitchell, D. L., Mazelle, C., Benna, M., Jakosky, B. M.

“…We present Mars Atmosphere and Volatile EvolutioN observations of large‐amplitude magnetosonic waves propagating through the magnetosheath into the Martian…”
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Magnetic Reconnection on Dayside Crustal Magnetic Fields at Mars: MAVEN Observations by Harada, Y., Halekas, J. S., DiBraccio, G. A., Xu, S., Espley, J., Mcfadden, J. P., Mitchell, D. L., Mazelle, C., Brain, D. A., Hara, T., Ma, Y. J., Ruhunusiri, S., Jakosky, B. M.

“…The identification of magnetic reconnection on the dayside of Mars has been elusive owing to the lack of comprehensive plasma and field measurements. Here we…”
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MAVEN measured oxygen and hydrogen pickup ions: Probing the Martian exosphere and neutral escape by Rahmati, A., Larson, D. E., Cravens, T. E., Lillis, R. J., Halekas, J. S., McFadden, J. P., Dunn, P. A., Mitchell, D. L., Thiemann, E. M. B., Eparvier, F. G., DiBraccio, G. A., Espley, J. R., Mazelle, C., Jakosky, B. M.

“…Soon after the MAVEN (Mars Atmosphere and Volatile EvolutioN) spacecraft started orbiting Mars, the SEP (Solar Energetic Particle), SWIA (Solar Wind Ion…”
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Transient Foreshock Structures Upstream of Mars: Implications of the Small Martian Bow Shock by Madanian, H., Omidi, N., Sibeck, D. G., Andersson, L., Ramstad, R., Xu, S., Gruesbeck, J. R., Schwartz, S. J., Frahm, R. A., Brain, D. A., Kajdic, P., Eparvier, F. G., Mitchell, D. L., Curry, S. M.

“…The typical subsolar stand‐off distance of Mars' bow shock is of the order of a solar wind ion convective gyroradius, making it highly non‐planar to incident…”
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Discovery of diffuse aurora on Mars by Schneider, N. M., Deighan, J. I., Jain, S. K., Stiepen, A., Stewart, A. I. F., Larson, D., Mitchell, D. L., Mazelle, C., Lee, C. O., Lillis, R. J., Evans, J. S., Brain, D., Stevens, M. H., McClintock, W. E., Chaffin, M. S., Crismani, M., Holsclaw, G. M., Lefevre, F., Lo, D. Y., Clarke, J. T., Montmessin, F., Jakosky, B. M.

“…Planetary auroras reveal the complex interplay between an atmosphere and the surrounding plasma environment. We report the discovery of low-altitude, diffuse…”
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Structure and Variability of the Martian Ion Composition Boundary Layer by Halekas, J. S., McFadden, J. P., Brain, D. A., Luhmann, J. G., DiBraccio, G. A., Connerney, J. E. P., Mitchell, D. L., Jakosky, B. M.

“…A complex boundary layer with a variety of charged particle and electromagnetic field signatures, including a transition between plasma predominantly of solar…”
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MAVEN observations of solar wind hydrogen deposition in the atmosphere of Mars by Halekas, J. S., Lillis, R. J., Mitchell, D. L., Cravens, T. E., Mazelle, C., Connerney, J. E. P., Espley, J. R., Mahaffy, P. R., Benna, M., Jakosky, B. M., Luhmann, J. G., McFadden, J. P., Larson, D. E., Harada, Y., Ruhunusiri, S.

“…Mars Atmosphere and Volatile EvolutioN mission (MAVEN) observes a tenuous but ubiquitous flux of protons with the same energy as the solar wind in the Martian…”
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An Artificial Neural Network for Inferring Solar Wind Proxies at Mars by Ruhunusiri, Suranga, Halekas, Jasper S., Espley, Jared R., Eparvier, Francis G., Brain, D., Mazelle, C., Harada, Y., DiBraccio, G. A., Dong, Y., Ma, Y., Thiemann, E. M. B., Mitchell, D. L., Jakosky, B. M.

“…We present a novel method to determine solar wind proxies from sheath measurements at Mars. Specifically, we develop an artificial neural network (ANN) to…”
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The first in situ electron temperature and density measurements of the Martian nightside ionosphere by Fowler, C. M., Andersson, L., Ergun, R. E., Morooka, M., Delory, G., Andrews, D. J., Lillis, Robert J., McEnulty, T., Weber, T. D., Chamandy, T. M., Eriksson, A. I., Mitchell, D. L., Mazelle, C., Jakosky, B. M.

“…The first in situ nightside electron density and temperature profiles at Mars are presented as functions of altitude and local time (LT) from the Langmuir…”
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Proton cyclotron waves occurrence rate upstream from Mars observed by MAVEN: Associated variability of the Martian upper atmosphere by Romanelli, N., Mazelle, C., Chaufray, J. Y., Meziane, K., Shan, L., Ruhunusiri, S., Connerney, J. E. P., Espley, J. R., Eparvier, F., Thiemann, E., Halekas, J. S., Mitchell, D. L., McFadden, J. P., Brain, D., Jakosky, B. M.

“…Measurements provided by the Magnetometer and the Extreme Ultraviolet Monitor (EUVM) on board the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft…”
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Thin Current Sheets of Sub-Ion Scales Observed by MAVEN in the Martian Magnetotail by Grigorenko, E. E., Zelenyi, L. M., DiBraccio, G., Ermakov, V. N., Shuvalov, S. D., Malova, H. V., Popov, V. Y., Halekas, J. S., Mitchell, D. L., Dubinin, E.

“…Current sheets (CSs) play a crucial role in the storage and conversion of magnetic energy in planetary magnetotails. Using high‐resolution magnetic field data…”
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