Search Results - "Greffen, M."

The THEMIS Array of Ground-based Observatories for the Study of Auroral Substorms by Mende, S. B., Harris, S. E., Frey, H. U., Angelopoulos, V., Russell, C. T., Donovan, E., Jackel, B., Greffen, M., Peticolas, L. M.

“…The NASA Time History of Events and Macroscale Interactions during Substorms (THEMIS) project is intended to investigate magnetospheric substorm phenomena,…”
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First observations from the RISR‐C incoherent scatter radar by Gillies, R. G., Eyken, A., Spanswick, E., Nicolls, M., Kelly, J., Greffen, M., Knudsen, D., Connors, M., Schutzer, M., Valentic, T., Malone, M., Buonocore, J., St.‐Maurice, J.‐P., Donovan, E.

“…First‐light measurements from the Canadian face of the Resolute Bay Incoherent Scatter Radar (RISR‐C) were taken in August of 2015. Data were taken for roughly…”
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Space-time variability of polar cap patches: Direct evidence for internal plasma structuring by Dahlgren, H., Perry, G. W., Semeter, J. L., St.-Maurice, J.-P., Hosokawa, K., Nicolls, M. J., Greffen, M., Shiokawa, K., Heinselman, C.

“…Coordinated observations of ionospheric variability near the geomagnetic pole using the Resolute Bay Incoherent Scatter Radar (RISR‐N), Super Dual Auroral…”
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Simultaneous THEMIS in situ and auroral observations of a small substorm by Donovan, E., Liu, W., Liang, J., Spanswick, E., Voronkov, I., Connors, M., Syrjäsuo, M., Baker, G., Jackel, B., Trondsen, T., Greffen, M., Angelopoulos, V., Russell, C. T., Mende, S. B., Frey, H. U., Keiling, A., Carlson, C. W., McFadden, J. P., Glassmeier, K.-H., Auster, U., Hayashi, K., Sakaguchi, K., Shiokawa, K., Wild, J. A., Rae, I. J.

“…We present ground‐based and in situ observations from March 13, 2007. The THEMIS satellites were in the evening sector conjugate to THEMIS ground‐based…”
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Fine structures and dynamics in auroral initial brightening at substorm onsets by SAKAGUCHI, K, SHIOKAWA, K, LEDA, A, NOMURA, R, NAKAJIMA, A, GREFFEN, M, DONOVAN, E, MANN, I. R, KIM, H, LESSARD, M

“…We show four auroral initial brightening events at substorm onsets focusing on fine structures and their longitudinal dynamics, which were observed by all-sky…”
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Rayleigh-Taylor type instability in auroral patches by Shiokawa, K., Nakajima, A., Ieda, A., Sakaguchi, K., Nomura, R., Aslaksen, T., Greffen, M., Donovan, E.

“…Based on observations by a high‐resolution narrow field‐of‐view CCD camera, we found small‐scale (5–25 km) finger‐like structures at the western boundary of…”
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Auroral meridian scanning photometer calibration using Jupiter by Jackel, Brian J, Unick, Craig, Creutzberg, Fokke, Baker, Greg, Davis, Eric, Donovan, Eric F, Connors, Martin, Wilson, Cody, Little, Jarrett, Greffen, M, McGuffin, Neil

“…Observations of astronomical sources provide information that can significantly enhance the utility of auroral data for scientific studies. This report…”
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Longitudinal development of a substorm brightening arc by SHIOKAWA, K, IEDA, A, MCFADDEN, J, GLASSMEIER, K.-H, ANGELOPOULOS, V, MIYASHITA, Y, NAKAJIMA, A, SAKAGUCHI, K, NOMURA, R, ASLAKSEN, T, GREFFEN, M, SPANSWICK, E, DONOVAN, E, MENDE, S. B

“…We present simultaneous THEMIS-ground observations of longitudinal (eastward) extension of a substorm initial-brightening arc at Gillam (magnetic latitude:…”
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THEMIS Ground Based Observatory System Design by Harris, S. E., Mende, S. B., Angelopoulos, V., Rachelson, W., Donovan, E., Jackel, B., Greffen, M., Russell, C. T., Pierce, D. R., Dearborn, D. J., Rowe, K., Connors, M.

“…The comprehensive THEMIS approach to solving the substorm problem calls for monitoring the nightside auroral oval with low-cost, robust white-light imagers and…”
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Planned observations of thermal plasma drifts and solar wind interactions in the Martian ionosphere by Yau, A. W., Garbe, G. P., Greffen, M. J., Miyake, W., Sagawa, E.

“…The structure and dynamics of the Martian ionosphere are believed to be strongly dependent on the nature, magnitude, and topology of its magnetic field, and…”
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First observations from the RISR-C incoherent scatter radar: First Observations From RISR-C by Gillies, R. G., van Eyken, A., Spanswick, E., Nicolls, M., Kelly, J., Greffen, M., Knudsen, D., Connors, M., Schutzer, M., Valentic, T., Malone, M., Buonocore, J., St.-Maurice, J.-P., Donovan, E.

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The THEMIS Array of Ground-based Observatories forthe Study of Auroral Substorms by Mende, S B, Harris, SE, Frey, HU, Angelopoulos, V, Russell, C T, Donovan, E, Jackel, B, Greffen, M, Peticolas, L M

“…The NASA Time History of Events and Macroscale Interactions during Substorms (THEMIS) project is intended to investigate magnetospheric substorm phenomena,…”
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THEMIS Ground Based Observatory System Design: The THEMIS Mission by HARRIS, S. E, MENDE, S. B, ROWE, K, CONNORS, M, ANGELOPOULOS, V, RACHELSON, W, DONOVAN, E, JACKEL, B, GREFFEN, M, RUSSELL, C. T, PIERCE, D. R, DEARBORN, D. J

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Simultaneous THEMIS in situ and auroral observations of a small substorm : First results from the time history of events and macroscale interactions during substorms mission (october) THEMIS1 by DONOVAN, E, LIU, W, GREFFEN, M, ANGELOPOULOS, V, RUSSELL, C. T, MENDE, S. B, FREY, H. U, KEILING, A, CARLSON, C. W, MCFADDEN, J. P, GLASSMEIER, K.-H, AUSTER, U, LIANG, J, HAYASHI, K, SAKAGUCHI, K, SHIOKAWA, K, WILD, J. A, RAE, I. J, SPANSWICK, E, VORONKOV, I, CONNORS, M, SYRJÄSUO, M, BAKER, G, JACKEL, B, TRONDSEN, T

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Planned observations of thermal plasma drifts and solar wind interactions in the Martian ionosphere: The PLANET-B mission and related science by YAU, A. W, GARBE, G. P, GREFFEN, M. J, MIYAKE, W, SAGAWA, E

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