Search Results - "Simms, Laura E."

The Combined Influence of Lower Band Chorus and ULF Waves on Radiation Belt Electron Fluxes at Individual L‐Shells by Simms, Laura E., Engebretson, Mark J., Rodger, Craig J., Dimitrakoudis, Stavros, Mann, Ian. R., Chi, Peter J.

“…We investigate the timing and relative influence of VLF in the chorus frequency range observed by the DEMETER spacecraft and ULF wave activity from ground…”
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Ground‐Based Observations of VLF Waves as a Proxy for Satellite Observations: Development of Models Including the Influence of Solar Illumination and Geomagnetic Disturbance Levels by Simms, Laura E., Engebretson, Mark J., Clilverd, Mark A., Rodger, Craig J.

“…Ground observations of VLF (very low frequency) waves have often been used to infer VLF activity in the magnetosphere; however, they are not an unbiased…”
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Classifier Neural Network Models Predict Relativistic Electron Events at Geosynchronous Orbit Better than Multiple Regression or ARMAX Models by Simms, Laura E., Engebretson, Mark J.

“…To find the best method of predicting when daily relativistic electron flux (>2 MeV) will rise at geosynchronous orbit, we compare model predictive success…”
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Empirical predictive models of daily relativistic electron flux at geostationary orbit: Multiple regression analysis by Simms, Laura E., Engebretson, Mark J., Pilipenko, Viacheslav, Reeves, Geoffrey D., Clilverd, Mark

“…The daily maximum relativistic electron flux at geostationary orbit can be predicted well with a set of daily averaged predictor variables including previous…”
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Using Machine Learning to Overcome Interfering Oxygen Effects in a Graphene Volatile Organic Compound Sensor by Capman, Nyssa S. S., Chaganti, V. R. Saran Kumar, Simms, Laura E., Hogan, Christopher J., Koester, Steven J.

“…Discriminating between volatile organic compounds (VOCs) for applications including disease diagnosis and environmental monitoring, is often complicated by the…”
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Nonlinear and Synergistic Effects of ULF Pc5, VLF Chorus, and EMIC Waves on Relativistic Electron Flux at Geosynchronous Orbit by Simms, Laura E., Engebretson, Mark J., Clilverd, Mark A., Rodger, Craig J., Reeves, Geoffrey D.

“…Using data covering the years 2005–2009, we study the linear and nonlinear responses of log10 relativistic electron flux measured at geosynchronous orbit to…”
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Geomagnetic Disturbances That Cause GICs: Investigating Their Interhemispheric Conjugacy and Control by IMF Orientation by Engebretson, Mark J., Simms, Laura E., Pilipenko, Viacheslav A., Bouayed, Lilia, Moldwin, Mark B., Weygand, James M., Hartinger, Michael D., Xu, Zhonghua, Clauer, C. Robert, Coyle, Shane, Willer, Anna N., Freeman, Mervyn P., Gerrard, Andy J.

“…Nearly all studies of impulsive geomagnetic disturbances (GMDs, also known as magnetic perturbation events MPEs) that can produce dangerous geomagnetically…”
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Predicting Lower Band Chorus With Autoregressive‐Moving Average Transfer Function (ARMAX) Models by Simms, Laura E., Engebretson, Mark J., Rodger, Craig J., Gjerloev, Jesper W., Reeves, Geoffrey D.

“…We model lower band chorus observations from the DEMETER satellite using daily and hourly autoregressive‐moving average transfer function (ARMAX) equations…”
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Prediction of relativistic electron flux at geostationary orbit following storms: Multiple regression analysis by Simms, Laura E., Pilipenko, Viacheslav, Engebretson, Mark J., Reeves, Geoffrey D., Smith, A. J., Clilverd, Mark

“…Many solar wind and magnetosphere parameters correlate with relativistic electron flux following storms. These include relativistic electron flux before the…”
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Analysis of the effectiveness of ground‐based VLF wave observations for predicting or nowcasting relativistic electron flux at geostationary orbit by Simms, Laura E., Engebretson, Mark J., Smith, A. J., Clilverd, Mark, Pilipenko, Viacheslav, Reeves, Geoffrey D.

“…Poststorm relativistic electron flux enhancement at geosynchronous orbit has shown correlation with very low frequency (VLF) waves measured by satellite in…”
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Removing Diurnal Signals and Longer Term Trends From Electron Flux and ULF Correlations: A Comparison of Spectral Subtraction, Simple Differencing, and ARIMAX Models by Simms, Laura E., Engebretson, Mark J., Reeves, Geoffrey D.

“…Simultaneously cycling space weather parameters may show high correlations even if there is no immediate relationship between them. We successfully remove…”
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Responses of the Common Sooty Wing Skipper to Patches of Host Plants by Capman, William C., Batzli, George O., Simms, Laura E.

“…The dispersion patterns of eggs and larvae of the common sooty wing skipper (Pholisora catullus) changed when size of patches and distance between patches of…”
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Factors affecting life expectancy of the prairie vole, Microtus ochrogaster by Getz, L.L, Simms, L.E, McGuire, B, Snarski, M.E

“…We determined life expectancy (to within approximately 3 d) of 1457 prairie voles, Microtus ochrogaster, in a free-living population over a period of 6 yr…”
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