Search Results - "Schnepf, N R"

Magnetic Signatures of the 15 January 2022 Hunga Tonga–Hunga Ha'apai Volcanic Eruption by Schnepf, N. R., Minami, T., Toh, H., Nair, M. C.

“…On 15 January 2022, at around 04:00 UTC, the submarine volcano Hunga Tonga‐Hunga Ha'apai explosively erupted. We examine data from 10 Pacific Ocean geomagnetic…”
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Atmospheric Escape From Earth and Mars: Response to Solar and Solar Wind Drivers of Oxygen Escape by Peterson, W. K., Brain, D. A., Schnepf, N. R., Dong, Y., Chamberlin, P., Yau, A. W.

“…Habitability at the surface of a planet depends on having an atmosphere long enough for life to develop. The loss of atmosphere to space is an important…”
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Evaluation of candidate models for the 13th generation International Geomagnetic Reference Field by Alken, P., Thébault, E., Beggan, C. D., Aubert, J., Baerenzung, J., Brown, W. J., Califf, S., Chulliat, A., Cox, G. A., Finlay, C. C., Fournier, A., Gillet, N., Hammer, M. D., Holschneider, M., Hulot, G., Korte, M., Lesur, V., Livermore, P. W., Lowes, F. J., Macmillan, S., Nair, M., Olsen, N., Ropp, G., Rother, M., Schnepf, N. R., Stolle, C., Toh, H., Vervelidou, F., Vigneron, P., Wardinski, I.

“…In December 2019, the 13th revision of the International Geomagnetic Reference Field (IGRF) was released by the International Association of Geomagnetism and…”
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Time–Frequency Characteristics of Tsunami Magnetic Signals from Four Pacific Ocean Events by Schnepf, N. R., Manoj, C., An, C., Sugioka, H., Toh, H.

“…The recent deployment of highly sensitive seafloor magnetometers coinciding with the deep solar minimum has provided excellent opportunities for observing…”
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Atmospheric ion escape and solar wind deposition as a function of planetary radius by Hinton, P C, Brain, D A, Schnepf, N R, Jarvinen, R, Ramstad, R

“…ABSTRACT We explore the ability of an unmagnetized planet to retain an atmosphere as a function of its radius. We use a particle-in-cell hybrid code to…”
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Can we probe the conductivity of the lithosphere and upper mantle using satellite tidal magnetic signals? by Schnepf, N. R., Kuvshinov, A., Sabaka, T.

“…A few studies convincingly demonstrated that the magnetic fields induced by the lunar semidiurnal (M2) ocean flow can be identified in satellite observations…”
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Solar and Solar Wind Energy Drivers for O+ and O2+ ${\mathrm{O}}_{2}^{+}$ Ion Escape at Mars by Schnepf, N. R., Dong, Y., Brain, D., Hanley, K. G., Peterson, W. K., Strangeway, R. J., Thiemann, E. M. B., Halekas, J. S., Espley, J. R., Eparvier, F., McFadden, J. P.

“…Mars once had a dense atmosphere enabling liquid water existing on its surface, however, much of that atmosphere has since escaped to space. We examine how…”
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Going electric: Incorporating marine electromagnetism into ocean assimilation models by Schnepf, N. R.

“…Having a clear multidimensional picture of Earth's oceans is crucial for understanding ocean processes and how they are evolving with climate change. Ocean…”
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A Comparison of Model‐Based Ionospheric and Ocean Tidal Magnetic Signals With Observatory Data by Schnepf, N. R., Nair, M., Maute, A., Pedatella, N. M., Kuvshinov, A., Richmond, A. D.

“…Observed tidal geomagnetic field variations are due to a combination of electric currents in the ionosphere, ocean, and their induced counterparts. Using these…”
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The Day the Solar Wind Disappeared at Mars by Halekas, J. S., Shaver, S., Azari, A. R., Fowler, C. M., Ma, Y., Xu, S., Andersson, L., Bertucci, C., Curry, S. M., Dong, C., Dong, Y., Fang, X., Garnier, P., Hanley, K. G., Hara, T., Howard, S. K., Hughes, A., Lillis, R. J., Lee, C. O., Luhmann, J. G., Madanian, H., Marquette, M., Mazelle, C., McFadden, J. P., Meziane, K., Mitchell, D. L., Rahmati, A., Reed, W., Romanelli, N., Schnepf, N. R.

“…In December 2022, an extremely low‐density solar wind stream encountered first the Earth and then Mars, shortly after the radial alignment of the two planets…”
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Tidal signals in ocean-bottom magnetic measurements of the Northwestern Pacific: observation versus prediction by Schnepf, N. R., Manoj, C., Kuvshinov, A., Toh, H., Maus, S.

“…Motional induction in the ocean by tides has long been observed by both land and satellite measurements of magnetic fields. While these signals are weak (∼10…”
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Stellar wind erosion of protoplanetary discs by Schnepf, N. R., Lovelace, R. V. E., Romanova, M. M., Airapetian, V. S.

“…An analytic model is developed for the erosion of protoplanetary gas discs by high-velocity magnetized stellar winds. The winds are centrifugally driven from…”
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Can seafloor voltage cables be used to study large-scale circulation? An investigation in the Pacific Ocean by Velímský, Jakub, Schnepf, Neesha R, Nair, Manoj C, Thomas, Natalie P

“…Marine electromagnetic (EM) signals largely depend on three factors: flow velocity, Earth's main magnetic field, and seawater's electrical conductivity (which…”
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