Search Results - "Carpenter, Dl"

The Plasmasphere boundary layer by CARPENTER, D. L, LEMAIRE, J

“…As an inner magnetospheric phenomenon the plasmapause region is of interest for a number of reasons, one being the occurrence there of geophysically important…”
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Multisatellite observations of rapid subauroral ion drifts (SAID) by Anderson, P. C., Carpenter, D. L., Tsuruda, K., Mukai, T., Rich, F. J.

“…We present the first conjugate observations of subauroral ion drifts (SAID) in the magnetosphere (∼9000 km altitude) and ionosphere and coincident measurements…”
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Global response of the plasmasphere to a geomagnetic disturbance by Spasojević, M., Goldstein, J., Carpenter, D. L., Inan, U. S., Sandel, B. R., Moldwin, M. B., Reinisch, B. W.

“…Global images of the plasmasphere obtained by the Extreme Ultraviolet (EUV) imager on the IMAGE satellite are used to study the evolving structure of the…”
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Evaluation of Catalyst Deactivation during Catalytic Steam Reforming of Biomass-Derived Syngas by Bain, Richard L., Dayton, David C., Carpenter, Daniel L., Czernik, Stefan R., Feik, Calvin J., French, Richard J., Magrini-Bair, Kimberly A., Phillips, Steven D.

“…Mitigation of tars produced during biomass gasification continues to be a technical barrier to developing systems. This effort combined the measurement of…”
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Erosion and Recovery of the Plasmasphere in the Plasmapause Region by Carpenter, D L, Lemaire, J

“…Understanding the basic plasmasphere erosion/recovery cycle remains a major, as yet largely unmet, challenge to the space science community. We do not yet have…”
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Severe hemodynamic impairment and border zone--region infarction by Derdeyn, C P, Khosla, A, Videen, T O, Fritsch, S M, Carpenter, D L, Grubb, Jr, R L, Powers, W J

“…To investigate the relationship between the patterns of cerebral infarction that have been associated with hemodynamic impairment and the presence of severe…”
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Multi-hop whistler-mode ELF/VLF signals and triggered emissions excited by the HAARP HF heater by Inan, U. S., Gołkowski, M., Carpenter, D. L., Reddell, N., Moore, R. C., Bell, T. F., Paschal, E., Kossey, P., Kennedy, E., Meth, S. Z.

“…Modulated heating of the lower ionosphere with the HAARP HF heater is used to excite 1–2 kHz signals observed on a ship‐borne receiver in the geomagnetic…”
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The Radio Plasma Imager investigation on the IMAGE spacecraft by Reinisch, Bw, Haines, Dm, Bibl, K, Cheney, G, Galkin, Ia, Huang, X, Myers, Sh, Sales, Gs, Benson, Rf, Fung, Sf, Green, Jl, Boardsen, S, Taylor, Wwl, Bougeret, J-l, Manning, R, Meyer-vernet, N, Moncuquet, M, Carpenter, Dl, Gallagher, Dl, Reiff, P

“…Radio plasma imaging uses total reflection of electromagnetic waves from plasmas whose plasma frequencies equal the radio sounding frequency and whose electron…”
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Small-scale field-aligned plasmaspheric density structures inferred from the Radio Plasma Imager on IMAGE by Carpenter, D. L., Spasojević, M. A., Bell, T. F., Inan, U. S., Reinisch, B. W., Galkin, I. A., Benson, R. F., Green, J. L., Fung, S. F., Boardsen, S. A.

“…Among the objectives of the Radio Plasma Imager (RPI) on IMAGE is the observation of the Earth's plasmasphere from the satellite's polar orbit, with apogee ≈8…”
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Diagnostics of magnetospheric electron density and irregularities at altitudes <5000 km using whistler and Z mode echoes from radio sounding on the IMAGE satellite by Sonwalkar, V. S., Carpenter, D. L., Bell, T. F., Spasojević, M., Inan, U. S., Li, J., Chen, X., Venkatasubramanian, A., Harikumar, J., Benson, R. F., Taylor, W. W. L., Reinisch, B. W.

“…When the Radio Plasma Imager (RPI) on the IMAGE satellite operates in the inner plasmasphere and at moderate to low altitudes over the polar regions, pulses…”
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CRRES observations of density cavities inside the plasmasphere by Carpenter, D. L., Anderson, R. R., Calvert, W., Moldwin, M. B.

“…Deep density troughs inside the plasmasphere in which electron density was a factor of from ∼2 to 10 below nearby plasmasphere levels were found in ∼13% of…”
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Guided echoes in the magnetosphere: Observations by Radio Plasma Imager on IMAGE by Fung, Shing F., Benson, Robert F., Carpenter, Donald L., Green, James L., Jayanti, Venku, Galkin, Ivan A., Reinisch, Bodo W.

“…Long‐range, discrete, radio echo traces observed in the magnetosphere by the Radio Plasma Imager (RPI) on IMAGE have been interpreted as signals guided along…”
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First results from the Radio Plasma Imager on IMAGE by Reinisch, B. W., Huang, X., Haines, D. M., Galkin, I. A., Green, J. L., Benson, R. F., Fung, S. F., Taylor, W. W. L., Reiff, P. H., Gallagher, D. L., Bougeret, J.-L., Manning, R., Carpenter, D. L., Boardsen, S. A.

“…The Radio Plasma Imager (RPI) is a 3 kHz to 3 MHz radio sounder, incorporating modern digital processing techniques and long electronically‐tuned antennas,…”
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Z-mode sounding within propagation “cavities” and other inner magnetospheric regions by the RPI instrument on the IMAGE satellite by Carpenter, D. L., Bell, T. F., Inan, U. S., Benson, R. F., Sonwalkar, V. S., Reinisch, B. W., Gallagher, D. L.

“…When the Radio Plasma Imager (RPI) on the IMAGE satellite operates in the inner plasmasphere and at moderate to low altitudes over the poles, pulses emitted at…”
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In situ and ground-based intercalibration measurements of plasma density at L = 2.5 by Clilverd, M. A., Menk, F. W., Milinevski, G., Sandel, B. R., Goldstein, J., Reinisch, B. W., Wilford, C. R., Rose, M. C., Thomson, N. R., Yearby, K. H., Bailey, G. J., Mann, I. R., Carpenter, D. L.

“…Two independent ground‐based experiments and two satellite‐borne experiments are used to interpret the changes in plasmaspheric composition at the same point…”
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The study of bulk plasma motions and associated electric fields in the plasmasphere by means of whistler-mode signals by Carpenter, D.L., Smith, A.J.

“…Whistler-mode waves propagating to ground stations along geomagnetic-field-aligned paths provide powerful tools for investigating bulk motions of the…”
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Investigations of irregularities in remote plasma regions by radio sounding: applications of the radio plasma imager on image by Fung, Shing F, Benson, Robert F, Carpenter, Donald L, Reinisch, Bodo W, Gallagher, Dennis L

“…The Radio Plasma Imager (RPI) on the IMAGE mission operates like a radar by transmitting and receiving coherent electromagnetic pulses. The RPI is designed to…”
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Whistler-mode wave-injection experiments in the plasmasphere with a radio sounder by Sonwalkar, V.S, Chen, X, Harikumar, J, Carpenter, D.L, Bell, T.F

“…Whistler-mode wave-injection experiments with a high-altitude radio sounder offer an opportunity to greatly extend the observing power of satellites such as…”
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Absence of Selective Deep White Matter Ischemia in Chronic Carotid Disease: A Positron Emission Tomographic Study of Regional Oxygen Extraction by Derdeyn, Colin P, Simmons, Nicholas R, Videen, Tom O, Yundt, Kent D, Fritsch, Susanne M, Carpenter, David L, Grubb, Robert L., Jr, Powers, William J

“…Deep white matter may be the location of an internal arterial border zone. The purpose of this study was to determine whether the deep white matter was subject…”
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Observations of magnetospheric plasmas by the radio plasma imager (RPI) on the image mission by Fung, S.F., Benson, R.F., Green, J.L., Reinisch, B.W., Haines, D.M., Galkin, I.A., Bougerer, J.-L., Manning, R., Reiff, P.H., Carpenter, D.L., Gallagher, D.L., Taylor, W.W.L.

“…The Imager for Magnetopause-to-Aurora Global Exploration satellite (IMAGE, see http://image.gsfc.nasa.gov.), launched on March 25, 2000, is the first mission…”
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