Items where NERC Author is "Freeman, Mervyn"
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2024
Parker, William E.; Freeman, Mervyn ORCID: https://orcid.org/0000-0002-8653-8279; Chisham, Gareth
ORCID: https://orcid.org/0000-0003-1151-5934; Kavanagh, Andrew John
ORCID: https://orcid.org/0000-0001-7360-7039; Siew, Peng Mun; Rodriguez-Fernandez, Victor; Linares, Richard.
2024
Influences of Space Weather Forecasting Uncertainty on Satellite Conjunction Assessment.
Space Weather, 22 (7), e2023SW003818.
19, pp.
https://doi.org/10.1029/2023SW003818
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M. P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2024
The spatial variation of large- and meso-scale plasma vorticity statistics in the high-latitude ionosphere and implications for ionospheric plasma flow models.
Journal of Geophysical Research: Space Physics, 129 (7), e2024JA032887.
21, pp.
https://doi.org/10.1029/2024JA032887
Carter, J.A.; Dunlop, M.; Forsyth, C.; Oksavik, K.; Donovon, E.; Kavanagh, A. ORCID: https://orcid.org/0000-0001-7360-7039; Milan, S.E.; Sergienko, T.; Fear, R.C.; Sibeck, D.G.; Connors, M.; Yeoman, T.; Tan, X.; Taylor, M.G.G.T.; McWilliams, K.; Gjerloev, J.; Barnes, R.; Billet, D.D.; Chisham, G.
ORCID: https://orcid.org/0000-0003-1151-5934; Dimmock, A.; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Han, D.-S.; Hartinger, M.D.; Hsieh, S.-Y.W.; Hu, Z.-J.; James, M.K.; Juusola, L.; Kauristie, K.; Kronberg, E.A.; Lester, M.; Manuel, J.; Matzka, J.; McCrea, I.; Miyoshi, Y.; Rae, J.; Ren, L.; Sigernes, F.; Spanswick, E.; Sterne, K.; Steuwer, A.; Sun, T.; Walach, M.-T.; Walsh, B.; Wang, C.; Weygand, J.; Wild, J.; Yan, J.; Zhang, J.; Zhang, Q.-H..
2024
Ground-based and additional science support for SMILE.
Earth and Planetary Physics, 8 (1).
275-298.
https://doi.org/10.26464/epp2023055
2023
Coyle, S.E.; Baker, J.B.H.; Chakraborty, S.; Hartinger, M. D.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Clauer, C.R.; Xu, Z.; Weimer, D.R..
2023
Substorms and Solar Eclipses: A Mutual Information Based Study.
Geophysical Research Letters, 50 (24), e2023GL106432.
7, pp.
https://doi.org/10.1029/2023GL106432
Coxon, J.C.; Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Forsyth, C.; Walach, M-T.; Murphy, K.R.; Vines, S.K.; Anderson, B.J.; Smith, A.W.; Fogg, A.R..
2023
Extreme Birkeland Currents Are More Likely During Geomagnetic Storms on the Dayside of the Earth.
Journal of Geophysical Research: Space Physics, 128 (12), e2023JA031946.
16, pp.
https://doi.org/10.1029/2023JA031946
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2023
Separating contributions to plasma vorticity in the high-latitude ionosphere from large-scale convection and meso-scale turbulence.
Journal of Geophysical Research: Space Physics, 128 (9), e2023JA031885.
13, pp.
https://doi.org/10.1029/2023JA031885
Lam, M.M. ORCID: https://orcid.org/0000-0002-0274-6119; Shore, R.M.
ORCID: https://orcid.org/0000-0002-8386-1425; Chisham, G.
ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Grocott, A.; Walach, M.-T.; Orr, L..
2023
A Model of High Latitude Ionospheric Convection Derived From SuperDARN EOF Model Data.
Space Weather, 21 (7), e2023SW003428.
17, pp.
https://doi.org/10.1029/2023SW003428
Coyle, S.E.; Hartinger, M.D.; Clauer, C.R.; Baker, J.B.H.; Cnossen, I. ORCID: https://orcid.org/0000-0001-6469-7861; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Weygand, J.M..
2023
The 2021 Antarctic Total Eclipse: Ground Magnetometer and GNSS Wave Observations from the 40 Degree Magnetic Meridian.
Journal of Geophysical Research: Space Physics, 128 (3), e2022JA031142.
12, pp.
https://doi.org/10.1029/2022JA031142
Maffei, Stefano; Eggington, Joseph W. B.; Livermore, Philip W.; Mound, Jonathan E.; Sanchez, Sabrina; Eastwood, Jonathan P.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279.
2023
Climatological predictions of the auroral zone locations driven by moderate and severe space weather events.
Scientific Reports, 13 (1), 779.
https://doi.org/10.1038/s41598-022-25704-2
Orr, L.; Grocott, A.; Walach, M.‐T.; Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Lam, M.M.
ORCID: https://orcid.org/0000-0002-0274-6119; Shore, R.M.
ORCID: https://orcid.org/0000-0002-8386-1425.
2023
A quantitative comparison of high latitude electric field models during a large geomagnetic storm.
Space Weather, 21 (1), e2022SW003301.
24, pp.
https://doi.org/10.1029/2022SW003301
Beggan, C.D.; Eastwood, J.; Forsyth, C.; Freeman, M. ORCID: https://orcid.org/0000-0002-8653-8279; Heyns, M.; Huebert, J.; Richardson, G.S.; Smith, A..
2023
SAGE : final report on the AWS nowcast and forecasting system and research advances.
Nottingham, UK, British Geological Survey, 55pp.
(OR/24/013)
(Unpublished)
2022
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. ORCID: https://orcid.org/0000-0002-8653-8279; Gerrard, Andy J..
2022
Geomagnetic disturbances that cause GICs: investigating their interhemispheric conjugacy and control by IMF orientation.
Journal of Geophysical Research: Space Physics, 127 (10), e2022JA030580.
23, pp.
https://doi.org/10.1029/2022JA030580
Smith, A.W.; Rodger, C.J.; Manus, D.H. Mac; Forsyth, C.; Rae, I.J.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Clilverd, M.A.
ORCID: https://orcid.org/0000-0002-7388-1529; Petersen, T.; Dalzell, M..
2022
The correspondence between sudden commencements and geomagnetically induced currents: Insights from New Zealand.
Space Weather, 20 (8), e2021SW002983.
18, pp.
https://doi.org/10.1029/2021SW002983
Daggitt, Thomas A. ORCID: https://orcid.org/0000-0002-3021-8890; Horne, Richard B.
ORCID: https://orcid.org/0000-0002-0412-6407; Glauert, Sarah A.
ORCID: https://orcid.org/0000-0003-0149-8608; Del Zanna, Giulio; Freeman, Mervyn P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2022
Variations in Observations of Geosynchronous Magnetopause and Last Closed Drift Shell Crossings with Magnetic Local Time.
Space Weather, 20 (8), e2022SW003105.
13, pp.
https://doi.org/10.1029/2022SW003105
Coxon, John C.; Chisham, Gareth ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, Mervyn P.
ORCID: https://orcid.org/0000-0002-8653-8279; Anderson, Brian J.; Fear, Robert C..
2022
Distributions of Birkeland current density observed by AMPERE are heavy‐tailed or long‐tailed.
Journal of Geophysical Research: Space Physics, 127 (2), e2021JA029801.
20, pp.
https://doi.org/10.1029/2021JA029801
2021
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2021
A statistical model of vorticity in the polar ionosphere and implications for extreme values.
Journal of Geophysical Research: Space Physics, 126 (11), e2021JA029307.
16, pp.
https://doi.org/10.1029/2021JA029307
Bentley, Mike; Siegert, Martin; Jones, Anna ORCID: https://orcid.org/0000-0002-2040-4841; Meredith, Michael
ORCID: https://orcid.org/0000-0002-7342-7756; Hendry, Katharine; Arthur, Jennifer; Brooks, Ian; Convey, Peter
ORCID: https://orcid.org/0000-0001-8497-9903; Dodds, Klaus; Freeman, Mervyn
ORCID: https://orcid.org/0000-0002-8653-8279; Hughes, Kevin A.
ORCID: https://orcid.org/0000-0003-2701-726X; Johnston, Nadine M.; Marschalek, Jim; Nichols, Keir; Plaschkes, Charlotte; Rhodes, Rachael; Taylor, Michelle L..
2021
The future of UK Antarctic science: Strategic priorities,
essential needs and opportunities for international leadership.
Imperial College London, The Grantham Institute, 10pp.
(Grantham Institute Discussion Paper 9)
Desai, R.T.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Eastwood, J.P.; Eggington, J.W.B.; Archer, M.O.; Shprits, Y.Y.; Meredith, N.P.
ORCID: https://orcid.org/0000-0001-5032-3463; Staples, F.A.; Rae, I.J.; Hietala, H.; Mejnertsen, L.; Chittenden, J.P.; Horne, R.B.
ORCID: https://orcid.org/0000-0002-0412-6407.
2021
Interplanetary shock‐induced magnetopause motion: Comparison between theory and global magnetohydrodynamic simulations.
Geophysical Research Letters, 48 (16), e2021GL092554.
11, pp.
https://doi.org/10.1029/2021GL092554
Shore, R.M. ORCID: https://orcid.org/0000-0002-8386-1425; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Chisham, G.
ORCID: https://orcid.org/0000-0003-1151-5934.
2021
Data‐driven basis functions for SuperDARN ionospheric plasma flow characterisation and prediction.
Journal of Geophysical Research: Space Physics, 126 (7), e2021JA029272.
18, pp.
https://doi.org/10.1029/2021JA029272
Smith, A.W.; Forsyth, C.; Rae, I.J.; Rodger, C.J.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279.
2021
The impact of sudden commencements on ground magnetic field variability: Immediate and delayed consequences.
Space Weather, 19 (7), e2021SW002764.
17, pp.
https://doi.org/10.1029/2021SW002764
Dimmock, A.P.; Welling, D.T.; Rosenqvist, L.; Forsyth, C.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Rae, I.J.; Viljanen, A.; Vandegriff, E.; Boynton, R.J.; Balikhin, M.A.; Yordanova, E..
2021
Modeling the geomagnetic response to the September 2017 space weather event over Fennoscandia using the Space Weather Modeling Framework: Studying the impacts of spatial resolution.
Space Weather, 19 (5), e2020SW002683.
25, pp.
https://doi.org/10.1029/2020SW002683
Clilverd, Mark ORCID: https://orcid.org/0000-0002-7388-1529; Rodger, Craig J.; Freeman, Mervyn P.
ORCID: https://orcid.org/0000-0002-8653-8279; Brundell, James B.; Mac Manus, Daniel H.; Dalzell, Michael; Clarke, Ellen; Thomson, Alan W.P.; Richardson, Gemma S.; MacLeod, Finlay; Frame, Ian.
2021
Geomagnetically induced currents during the 07-08 September 2017 disturbed period: a global perspective.
Journal of Space Weather and Space Climate, 11 (33).
15, pp.
https://doi.org/10.1051/swsc/2021014
2020
Smith, A.W.; Rae, I.J.; Forsyth, C.; Oliveira, D.M.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Jackson, D.R..
2020
Probabilistic forecasts of storm sudden commencements from interplanetary shocks using machine learning.
Space Weather, 18 (11), e2020SW002603.
24, pp.
https://doi.org/10.1029/2020SW002603
Engebretson, Mark J.; Kirkevold, Kathryn R.; Steinmetz, Erik S.; Pilipenko, Viacheslav A.; Moldwin, Mark B.; McCuen, Brett A.; Clauer, C. R.; Hartinger, Michael D.; Coyle, Shane; Opgenoorth, Hermann; Schillings, Audrey; Willer, Anna N.; Edwards, Thom R.; Boteler, David H.; Gerrard, Andy J.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Rose, Michael C..
2020
Interhemispheric comparisons of large nighttime magnetic perturbation events relevant to GICs.
Journal of Geophysical Research: Space Physics, 125 (8), e2020JA028128.
24, pp.
https://doi.org/10.1029/2020JA028128
2019
Smith, A.W.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Rae, I.J.; Forsyth, C..
2019
The influence of sudden commencements on the rate of change of the surface horizontal magnetic field in the United Kingdom.
Space Weather, 17 (11).
1605-1617.
https://doi.org/10.1029/2019SW002281
Freeman, Mervyn ORCID: https://orcid.org/0000-0002-8653-8279; Lam, Mai Mai.
2019
Regional, seasonal, and inter-annual variations of Antarctic and sub-Antarctic temperature anomalies related to the Mansurov effect.
Environmental Research Communications, 11 (1), 111007.
https://doi.org/10.1088/2515-7620/ab4a84
Sandhu, J.K.; Rae, I.J.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Gkioulidou, M.; Forsyth, C.; Reeves, G.D.; Murphy, K.R.; Walach, M.-T..
2019
Substorm ‐ Ring Current Coupling: A comparison of isolated and compound substorms.
Journal of Geophysical Research: Space Physics, 124 (8).
6776-6791.
https://doi.org/10.1029/2019JA026766
Coxon, John C.; Shore, Robert M. ORCID: https://orcid.org/0000-0002-8386-1425; Freeman, Mervyn P.
ORCID: https://orcid.org/0000-0002-8653-8279; Fear, Robert C.; Browett, Stephen D.; Smith, Andrew W.; Whiter, Daniel K.; Anderson, Brian J..
2019
Timescales of Birkeland Currents driven by the IMF.
Geophysical Research Letters, 46 (14).
7893-7901.
https://doi.org/10.1029/2018GL081658
Shore, R.M. ORCID: https://orcid.org/0000-0002-8386-1425; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Coxon, J.C.; Thomas, E.G.; Gjerloev, J.W.; Olsen, N..
2019
Spatial variation in the responses of the surface external and induced magnetic field to the solar wind.
Journal of Geophysical Research: Space Physics, 124 (7).
6195-6211.
https://doi.org/10.1029/2019JA026543
Shore, Robert ORCID: https://orcid.org/0000-0002-8386-1425; Freeman, Mervyn
ORCID: https://orcid.org/0000-0002-8653-8279; Gjerloev, Jesper.
2019
Interplanetary magnetic field control of polar ionospheric equivalent current system modes.
Space Weather, 17 (7).
976-988.
https://doi.org/10.1029/2019SW002161
Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Forsyth, Colin; Rae, I. Jonathan.
2019
The influence of substorms on extreme rates of change of the surface horizontal magnetic field in the United Kingdom.
Space Weather, 17 (6).
827-844.
https://doi.org/10.1029/2018SW002148
Lam, Mai Mai ORCID: https://orcid.org/0000-0002-0274-6119; Freeman, Mervyn P.
ORCID: https://orcid.org/0000-0002-8653-8279; Jackman, C.M.; Rae, I.J.; Kalmoni, N.M.E.; Sandhu, J.K.; Forsyth, C..
2019
How well can we estimate Pedersen conductance from the THEMIS white-light all-sky cameras?
Journal of Geophysical Research: Space Physics, 124.
2920-2934.
https://doi.org/10.1029/2018JA026067
Lockwood, Mike; Bentley, Sarah N.; Owens, Mathew J.; Barnard, Luke A.; Scott, Chris J.; Watt, Clare E.; Allanson, Oliver; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279.
2019
The development of a space climatology: 2. The distribution of power input into the magnetosphere on a 3‐hourly timescale.
Space Weather, 17 (1).
157-179.
https://doi.org/10.1029/2018SW002016
Lockwood, Mike; Bentley, Sarah N.; Owens, Mathew J.; Barnard, Luke A.; Scott, Chris J.; Watt, Clare E.; Allanson, Oliver; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279.
2019
The development of a space climatology: 3. Models of the evolution of distributions of space weather variables with timescale.
Space Weather, 17 (1).
180-209.
https://doi.org/10.1029/2018SW002017
2018
Lam, Mai Mai ORCID: https://orcid.org/0000-0002-0274-6119; Freeman, Mervyn P.
ORCID: https://orcid.org/0000-0002-8653-8279; Chisham, Gareth
ORCID: https://orcid.org/0000-0003-1151-5934.
2018
IMF-driven change to the Antarctic tropospheric temperature due to the global atmospheric electric circuit.
Journal of Atmospheric and Solar-Terrestrial Research, 180.
148-152.
https://doi.org/10.1016/j.jastp.2017.08.027
Sandhu, J.K.; Rae, I.J.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Forsyth, C.; Gkioulidou, M.; Reeves, G.D.; Spence, H.E.; Jackman, C.M.; Lam, M.M..
2018
Energization of the ring current by substorms.
Journal of Geophysical Research: Space Physics, 123 (10).
8131-8148.
https://doi.org/10.1029/2018JA025766
Coxon, John C.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Jackman, Caitriona M.; Forsyth, Colin; Rae, I. Jonathan; Fear, Robert C..
2018
Tailward propagation of magnetic energy density variations With respect to substorm onset times.
Journal of Geophysical Research: Space Physics, 123 (6).
4741-4754.
https://doi.org/10.1029/2017JA025147
Forsyth, C.; Shortt, M.; Coxon, J.C.; Rae, I.J.; Freeman, M.. ORCID: https://orcid.org/0000-0002-8653-8279; Kalmoni, N.M.E.; Jackman, C.M.; Anderson, B.J.; Milan, S.E.; Burrell, A.G..
2018
Seasonal and temporal variations of field-aligned currents and ground magnetic deflections during substorms.
Journal of Geophysical Research: Space Physics, 123 (4).
2696-2713.
https://doi.org/10.1002/2017JA025136
Shore, R.M. ORCID: https://orcid.org/0000-0002-8386-1425; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Gjerloev, J.W..
2018
An empirical orthogonal function reanalysis of the northern polar external and induced magnetic field during solar cycle 23.
Journal of Geophysical Research, 123 (1).
781-795.
https://doi.org/10.1002/2017JA024420
2017
Shore, R.M. ORCID: https://orcid.org/0000-0002-8386-1425; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Wild, J.A.; Gjerloev, J.W..
2017
A high-resolution model of the external and induced magnetic field at the Earth’s surface in the northern hemisphere.
Journal of Geophysical Research: Space Physics, 122 (2).
2440-2454.
https://doi.org/10.1002/2016JA023682
2016
Forsyth, C.; Rae, I. J.; Murphy, K. R.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Huang, C.-L.; Spence, H. E.; Boyd, A. J.; Coxon, J. C.; Jackman, C. M.; Kalmoni, N. M. E.; Watt, C. E. J..
2016
What effect do substorms have on the content of the radiation belts?
Journal of Geophysical Research: Space Physics, 121 (7).
6292-6306.
https://doi.org/10.1002/2016JA022620
Coxon, J. C.; Jackman, C. M.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Forsyth, C.; Rae, I. J..
2016
Identifying the magnetotail lobes with Cluster magnetometer data.
Journal of Geophysical Research: Space Physics, 121 (2).
1436-1446.
https://doi.org/10.1002/2015JA022020
2015
Forsyth, C.; Rae, I. J.; Coxon, J. C.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Jackman, C. M.; Gjerloev, J.; Fazakerley, A. N..
2015
A new technique for determining Substorm Onsets and Phases from Indices of the Electrojet (SOPHIE).
Journal of Geophysical Research: Space Physics, 120 (12).
10,592-10,606.
https://doi.org/10.1002/2015JA021343
2014
Forsyth, C.; Watt, C.E.J.; Rae, I.J.; Fazakerley, A.N.; Kalmoni, N.M.E.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Boakes, P.D.; Nakamura, R.; Dandouras, I.; Kistler, L.M.; Jackman, C.M.; Coxon, J.C.; Carr, C..
2014
Increases in plasma sheet temperature with solar wind driving during substorm growth phases.
Geophysical Research Letters, 41 (24).
8713-8721.
https://doi.org/10.1002/2014GL062400
Longden, N.; Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2014
Magnetic local time variation and scaling of poleward auroral boundary dynamics.
Journal of Geophysical Research: Space Physics, 119 (12).
10006-10022.
https://doi.org/10.1002/2014JA020430
Lam, Mai Mai ORCID: https://orcid.org/0000-0002-0274-6119; Chisham, Gareth
ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, Mervyn
ORCID: https://orcid.org/0000-0002-8653-8279.
2014
Solar-wind-driven geopotential height anomalies originate in the Antarctic lower troposphere.
Geophysical Research Letters, 41 (18).
6509-6514.
https://doi.org/10.1002/2014GL061421
Jackman, C. M.; Arridge, C. S.; André, N.; Bagenal, F.; Birn, J.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Jia, X.; Kidder, A.; Milan, S. E.; Radioti, A.; Slavin, J. A.; Vogt, M. F.; Volwerk, M.; Walsh, A. P..
2014
Large-scale structure and dynamics of the magnetotails of Mercury, Earth, Jupiter and Saturn.
Space Science Reviews, 182 (1-4).
85-154.
https://doi.org/10.1007/s11214-014-0060-8
Jackman, C.M.; Slavin, J. A; Kivelson, M.G.; Southwood, D. J.; Achilleos, N.; Thomsen, M.F.; DiBraccio, G. A.; Eastwood, J.P.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Dougherty, M.K.; Vogt, M.F..
2014
Saturn's dynamic magnetotail: A comprehensive magnetic field and plasma survey of plasmoids and travelling compression regions, and their role in global magnetospheric dynamics.
Journal of Geophysical Research: Space Physics, 119 (7).
5465-5494.
https://doi.org/10.1002/2013JA019388
2013
Lam, Mai Mai ORCID: https://orcid.org/0000-0002-0274-6119; Chisham, Gareth
ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, Mervyn P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2013
The interplanetary magnetic field influences mid-latitude surface atmospheric pressure.
Environmental Research Letters, 8 (4).
https://doi.org/10.1088/1748-9326/8/4/045001
Milan, S. E.; Grocott, A.; de Larquier, S.; Lester, M.; Yeoman, T. K.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Chisham, G.
ORCID: https://orcid.org/0000-0003-1151-5934.
2013
Traveling ionospheric disturbances in the Weddell Sea Anomaly associated with geomagnetic activity.
Journal of Geophysical Research: Space Physics, 118 (10).
6608-6617.
https://doi.org/10.1002/jgra.50566
Grocott, A.; Hosokawa, K.; Ishida, T.; Lester, M.; Milan, S. E.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Sato, N.; Yukimatu, A. S..
2013
Characteristics of medium-scale traveling ionospheric disturbances observed near the Antarctic Peninsula by HF radar.
Journal of Geophysical Research: Space Physics, 118 (9).
5830-5841.
https://doi.org/10.1002/jgra.50515
Chisham, Gareth ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, Mervyn P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2013
A reassessment of SuperDARN meteor echoes from the upper mesosphere and lower thermosphere.
Journal of Atmospheric and Solar-Terrestrial Physics, 102.
207-221.
https://doi.org/10.1016/j.jastp.2013.05.018
Capparelli, V.; Franzke, C.; Vecchio, A.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Watkins, N.W.; Carbone, V..
2013
A spatiotemporal analysis of U.S. station temperature trends over the last century.
Journal of Geophysical Research: Atmospheres, 118 (14).
7427-7434.
https://doi.org/10.1002/jgrd.50551
Moffat-Griffin, Tracy ORCID: https://orcid.org/0000-0002-9670-6715; Lester, Mark; Freeman, Mervyn
ORCID: https://orcid.org/0000-0002-8653-8279.
2013
From atmosphere to space: a new scientific frontier.
Astronomy & Geophysics, 54 (3).
21-22.
https://doi.org/10.1093/astrogeo/att079
2012
Kunduri, B.S.R.; Baker, J.B.H.; Ruohoniemi, J. M.; Clausen, L.B.N.; Grocott, A.; Thomas, E.G.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Talaat, E.R..
2012
An examination of inter-hemispheric conjugacy in a subauroral polarization stream.
Journal of Geophysical Research, 117 (A8), A08225.
17, pp.
https://doi.org/10.1029/2012JA017784
Edwards, Andrew M.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Breed, Greg A.; Jonsen, Ian D..
2012
Incorrect likelihood methods were used to infer scaling laws of marine predator search behaviour.
Plos One, 7 (10).
13, pp.
https://doi.org/10.1371/journal.pone.0045174
2011
Grocott, A.; Milan, S.E.; Baker, J.B.H.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Lester, M.; Yeoman, T.K..
2011
Dynamic subauroral ionospheric electric fields observed by the Falkland Islands radar during the course of a geomagnetic storm.
Journal of Geophysical Research, 116 (A11), A11202.
16, pp.
https://doi.org/10.1029/2011JA016763
Boakes, P.D.; Milan, S.E.; Abel, G.A.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Chisham, G.
ORCID: https://orcid.org/0000-0003-1151-5934; Hubert, B..
2011
A superposed epoch investigation of the relation between magnetospheric solar wind driving and substorm dynamics with geosynchronous particle injection signatures.
Journal of Geophysical Research, 116 (A1), A01214.
12, pp.
https://doi.org/10.1029/2010JA016007
Hibbins, Robert ORCID: https://orcid.org/0000-0002-6867-2255; Freeman, Mervyn
ORCID: https://orcid.org/0000-0002-8653-8279; Milan, S.E.; Ruohoiemi, J.M..
2011
Winds and tides in the mid-latitude Southern Hemisphere upper mesosphere recorded with the Falkland Islands SuperDARN radar.
Annales Geophysicae, 29 (11).
1985-1996.
https://doi.org/10.5194/angeo-29-1985-2011
2010
Longden, Nicola; Chisham, Gareth ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, Mervyn P.
ORCID: https://orcid.org/0000-0002-8653-8279; Abel, Gary A.; Sotirelis, Tom.
2010
Estimating the location of the open-closed magnetic field line boundary from auroral images.
Annales Geophysicae, 28 (9).
1659-1678.
https://doi.org/10.5194/angeo-28-1659-2010
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2010
On the non-Gaussian nature of ionospheric vorticity.
Geophysical Research Letters, 37 (12), L12103.
5, pp.
https://doi.org/10.1029/2010GL043714
Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Watkins, Nicholas W.; Yoneki, Eiko; Crowcroft, Jon.
2010
Rhythm and randomness in human contact.
2010 International Conference on Advances in Social Networks Analysis and Mining.
184-191.
https://doi.org/10.1109/ASONAM.2010.57
2009
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Abel, G.A.; Bristow, W.A.; Marchaudon, A.; Ruohoniemi, J.M.; Sofko, G.J..
2009
Spatial distribution of average vorticity in the high-latitude ionosphere and its variation with interplanetary magnetic field direction and season.
Journal of Geophysical Research, 114 (A9), A09301.
14, pp.
https://doi.org/10.1029/2009JA014263
Boakes, P.D.; Milan, S.E.; Abel, G.A.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Chisham, G.
ORCID: https://orcid.org/0000-0003-1151-5934; Hubert, B..
2009
A statistical study of the open magnetic flux content of the magnetosphere at the time of substorm onset.
Geophysical Research Letters, 36 (4), L04105.
5, pp.
https://doi.org/10.1029/2008GL037059
Abel, G.A.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Chisham, G.
ORCID: https://orcid.org/0000-0003-1151-5934.
2009
IMF clock angle control of multifractality in ionospheric velocity fluctuations.
Geophysical Research Letters, 36 (19), L19102.
5, pp.
https://doi.org/10.1029/2009GL040336
Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Morley, S. K..
2009
No evidence for externally triggered substorms based on superposed epoch analysis of IMF Bz.
Geophysical Research Letters, 36 (21), L21101.
4, pp.
https://doi.org/10.1029/2009GL040621
Jackman, C.M.; Lamy, L.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Zarka, P.; Cecconi, B.; Kurth, W.S.; Cowley, S.W.H.; Dougherty, M.K..
2009
On the character and distribution of lower-frequency radio emissions at Saturn and their relationship to substorm-like events.
Journal of Geophysical Research, 114 (A8), A08211.
13, pp.
https://doi.org/10.1029/2008JA013997
Morley, S.K.; Rouillard, A.P.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279.
2009
Recurrent substorm activity during the passage of a corotating interaction region.
Journal of Atmospheric and Solar-Terrestrial Physics, 71 (10-11).
1073-1081.
https://doi.org/10.1016/j.jastp.2008.11.009
2008
Watkins, Nicholas W.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279.
2008
Natural complexity.
Science, 320 (5874).
323-324.
https://doi.org/10.1126/science.1151611
Petkaki, P.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279.
2008
Nonlinear dependence of ion-acoustic anomalous resistivity on electron drift velocity.
Astrophysical Journal, 686 (1).
686-693.
https://doi.org/10.1086/590654
Boakes, P.D.; Milan, S.E.; Abel, G.A.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Chisham, G.
ORCID: https://orcid.org/0000-0003-1151-5934; Hubert, B.; Sotirelis, T..
2008
On the use of IMAGE FUV for estimating the latitude of the open/closed magnetic field line boundary in the ionosphere.
Annales Geophysicae, 26 (9).
2759-2769.
https://doi.org/10.5194/angeo-26-2759-2008
Alfonsi, Lucilla; Kavanagh, Andrew J.; Amata, Ermanno; Cilliers, Pierre; Correia, Emilia; Freeman, Mervyn ORCID: https://orcid.org/0000-0002-8653-8279; Kauristie, Kirsti; Liu, Ruiyuan; Luntama, Juha-Pekka; Mitchell, Cathryn N.; Zherebtsov, G.A..
2008
Probing the high latitude ionosphere from ground-based observations: the state of current knowledge and capabilities during IPY (2007-2009).
Journal of Atmospheric and Solar-Terrestrial Physics, 70 (18).
2293-2308.
https://doi.org/10.1016/j.jastp.2008.06.013
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Abel, G.A.; Lam, M. M.
ORCID: https://orcid.org/0000-0002-0274-6119; Pinnock, M.; Coleman, I. J.; Milan, S. E.; Lester, M.; Bristow, W. A.; Greenwald, R. A.; Sofko, G. J.; Villain, J.-P..
2008
Remote sensing of the spatial and temporal structure of magnetopause and magnetotail reconnection from the ionosphere.
Reviews of Geophysics, 46 (1), RG1004.
27, pp.
https://doi.org/10.1029/2007RG000223
2007
Abel, G.A.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Chisham, G.
ORCID: https://orcid.org/0000-0003-1151-5934; Watkins, N.W..
2007
Investigating turbulent structure of ionospheric plasma velocity using the Halley SuperDARN radar.
Nonlinear Processes in Geophysics, 14 (6).
799-809.
https://doi.org/10.5194/npg-14-799-2007
Morley, S.K.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279.
2007
On the association between northward turnings of the interplanetary magnetic field and substorm onsets.
Geophysical Research Letters, 34 (8), L08104.
6, pp.
https://doi.org/10.1029/2006GL028891
Abel, Gary A.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Chisham, Gareth
ORCID: https://orcid.org/0000-0003-1151-5934; Watkins, Nicholas W..
2007
Investigating the turbulent structure of ionospheric plasma velocities on open and closed magnetic field lines.
In: Shaikh, Dastgeer; Zank, Gary P., (eds.)
Turbulence and nonlinear processes in astrophysical plasmas.
Melville, New York, American Institute of Physics, 307-312.
(AIP conference proceedings, 932).
Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279.
2007
Auroral substorm.
In: Riffenburgh, B., (ed.)
Encyclopedia of the Antarctic.
New York, Routledge, 108-109.
Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279.
2007
Magnetic storm.
In: Riffenburgh, B., (ed.)
Encyclopedia of the Antarctic.
New York, Routledge, 608-609.
Edwards, Andrew M.; Phillips, Richard A.; Watkins, Nicholas W.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Murphy, Eugene J,
ORCID: https://orcid.org/0000-0002-7369-9196; Afanasyev, Vsevolod; Buldyrev, Sergey V.; da Luz, M. G. E.; Raposo, E. P.; Stanley, H. Eugene; Viswanathan, Gandhimohan M..
2007
Revisiting Lévy flight search patterns of wandering albatrosses, bumblebees and deer.
Nature, 449 (7165).
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https://doi.org/10.1038/nature06199
Morley, S.K.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Tanskanen, E.I..
2007
A comparison of the probability distribution of observed substorm magnitude with that predicted by a minimal substorm model.
Annales Geophysicae, 25 (11).
2427-2437.
https://doi.org/10.5194/angeo-25-2427-2007
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Lester, M.; Milan, S.E.; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Bristow, W.A.; Grocott, A.; McWilliams, K.A.; Ruohoniemi, J.M.; Yeoman, T.K.; Dyson, P.L.; Greenwald, R.A.; Kikuchi, T.; Pinnock, M.; Rash, J.P.S.; Sato, N.; Sofko, G.J.; Villain, J.-P.; Walker, A.D.M..
2007
A decade of the Super Dual Auroral Radar Network (SuperDARN): scientific achievements, new techniques and future directions.
Surveys in Geophysics, 28 (1).
33-109.
https://doi.org/10.1007/s10712-007-9017-8
2006
Petkaki, P.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Kirk, T.; Watt, C.E.J.; Horne, R.B.
ORCID: https://orcid.org/0000-0002-0412-6407.
2006
Anomalous resistivity and the non-linear evolution of the ion-acoustic instability.
Journal of Geophysical Research, 111 (A1), A01205.
12, pp.
https://doi.org/10.1029/2004JA010793
Abel, G.A.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Smith, A.J.; Reeves, G.D..
2006
Association of substorm chorus events with drift echoes.
Journal of Geophysical Research, 111 (A11), A11220.
8, pp.
https://doi.org/10.1029/2006JA011860
Petkaki, P.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Walsh, A.P..
2006
Cluster observations of broadband electromagnetic waves in and around a reconnection region in the Earth's magnetotail current sheet.
Geophysical Research Letters, 33 (16), L16105.
5, pp.
https://doi.org/10.1029/2006GL027066
Abel, G.A.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Chisham, G.
ORCID: https://orcid.org/0000-0003-1151-5934.
2006
Spatial structure of ionospheric convection velocities in regions of open and closed magnetic field topology.
Geophysical Research Letters, 33 (24).
L24103.
https://doi.org/10.1029/2006GL027919
2005
Coleman, Iain J.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279.
2005
Fractal reconnection structures on the magnetopause.
Geophysical Research Letters, 32 (3), L03115.
4, pp.
https://doi.org/10.1029/2004GL021779
Abel, G.A.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Chisham, G.
ORCID: https://orcid.org/0000-0003-1151-5934.
2005
Comment on “Location of the reconnection line for northward interplanetary magnetic field” by K. J. Trattner, S. A. Fuselier, and S. M. Petrinec.
Journal of Geophysical Research, 110 (A10), A10208.
2, pp.
https://doi.org/10.1029/2004JA010973
Watkins, Nicholas W.; Credgington, Daniel; Hnat, Bogdan; Chapman, Sandra C.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Greenhough, John.
2005
Towards synthesis of solar wind and geomagnetic scaling exponents: a fractional Levy motion model.
Space Science Reviews, 121 (1-4).
271-284.
https://doi.org/10.1007/s11214-006-4578-2
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Sotirelis, T.; Greenwald, R.A..
2005
The accuracy of using the spectral width boundary measured in off-meridional SuperDARN HF radar beams as a proxy for the open-closed field line boundary.
Annales Geophysicae, 23 (7).
2599-2604.
https://doi.org/10.5194/angeo-23-2599-2005
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Lam, M.M.
ORCID: https://orcid.org/0000-0002-0274-6119; Abel, G.A.; Sotirelis, T.; Greenwald, R.A.; Lester, M..
2005
A statistical comparison of SuperDARN spectral width boundaries and DMSP particle precipitation boundaries in the afternoon sector ionosphere.
Annales Geophysicae, 23 (12).
3645-3654.
https://doi.org/10.5194/angeo-23-3645-2005
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Sotirelis, T.; Greenwald, R.A.; Lester, M.; Villain, J.-P..
2005
A statistical comparison of SuperDARN spectral width boundaries and DMSP particle precipitation boundaries in the morning sector ionosphere.
Annales Geophysicae, 23 (3).
733-743.
https://doi.org/10.5194/angeo-23-733-2005
2004
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Coleman, I.J.; Pinnock, M.; Hairston, M.R.; Lester, M.; Sofko, G..
2004
Measuring the dayside reconnection rate during an interval of due northward interplanetary magnetic field.
Annales Geophysicae, 22 (12).
4243-4258.
https://doi.org/10.5194/angeo-22-4243-2004
Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Chisham, G.
ORCID: https://orcid.org/0000-0003-1151-5934.
2004
On the probability distributions of SuperDARN Doppler spectral width measurements inside and outside the cusp.
Geophysical Research Letters, 31 (22), L22802.
4, pp.
https://doi.org/10.1029/2004GL020923
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2004
An investigation of latitudinal transitions in the SuperDARN Doppler spectral width parameter at different magnetic local times.
Annales Geophysicae, 22 (4).
1187-1202.
https://doi.org/10.5194/angeo-22-1187-2004
Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Morley, S.K.
ORCID: https://orcid.org/0000-0002-7761-660X.
2004
A minimal substorm model that explains the observed statistical distribution of times between substorms.
Geophysical Research Letters, 31 (12), L12807.
4, pp.
https://doi.org/10.1029/2004GL019989
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2004
A statistical comparison of SuperDARN spectral width boundaries and DMSP particle precipitation boundaries in the nightside ionosphere.
Geophysical Research Letters, 31 (2), L02804.
4, pp.
https://doi.org/10.1029/2003GL019074
2003
Petkaki, P.; Watt, C.E.J.; Horne, R.B. ORCID: https://orcid.org/0000-0002-0412-6407; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2003
Anomalous resistivity in non-Maxwellian plasmas.
Journal of Geophysical Research, 108 (A12), 1442.
11, pp.
https://doi.org/10.1029/2003JA010092
Rodger, A.S.; Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Coleman, I.J.; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Pinnock, M..
2003
Anti-parallel reconnection at the dayside magnetopause: ionospheric signatures and implications for the low latitude boundary layer.
In: Newell, P.T.; Onsager, T., (eds.)
Earth's low-latitude boundary layer.
Washington, D.C., American Geophysical Union, 311-318.
(Geophysical Monograph, 133).
Clarke, Richard W.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Watkins, Nicholas W..
2003
Application of computational mechanics to the analysis of natural data: an example in geomagnetism.
Physical Review E, 67 (1-2), 016203.
15, pp.
https://doi.org/10.1103/PhysRevE.67.016203
Farrugia, C.J.; Jordanova, V.K.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Cocheci, C.C.; Arnoldy, R.L.; Engebretson, M.; Stauning, P.; Rostoker, G.; Thomsen, M.F.; Reeves, G.; Yumoto, K..
2003
Large-scale geomagnetic effects of May 4, 1998.
Advances in Space Research, 31 (4).
1111-1116.
https://doi.org/10.1016/S0273-1177(02)00890-6
Farrugia, C.J.; Burlaga, L.F.; Jordanova, V.K.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Lawrence, G.; Matsui, H.; Cocheci, C.C.; Arnoldy, R.L.; Scudder, J.D.; Ogilvie, K.W.; Lepping, R.P..
2003
Power to the magnetosphere: May 4, 1998.
Advances in Space Research, 31 (4).
1117-1122.
https://doi.org/10.1016/S0273-1177902000891-8
Coleman, Iain J.; Chisham, Gareth ORCID: https://orcid.org/0000-0003-1151-5934; Pinnock, Michael; Freeman, Mervyn P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2003
Reply to comment by S.M. Petrinec and S.A. Fuselier on 'An ionospheric convection signature of antiparallel reconnection'.
Journal of Geophysical Research, 108 (A5), 1178.
3, pp.
https://doi.org/10.1029/2002JA009568
Pinnock, M.; Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Coleman, I.J.; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Hairston, M.; Villain, J.-P..
2003
The location and rate of dayside reconnection during an interval of southward interplanetary magnetic field.
Annales Geophysicae, 21 (7).
1467-1482.
https://doi.org/10.5194/angeo-21-1467-2003
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2003
A technique for accurately determining the cusp-region polar cap boundary using SuperDARN HF radar measurements.
Annales Geophysicae, 21 (4).
983-996.
https://doi.org/10.5194/angeo-21-983-2003
Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279.
2003
A unified model of the response of ionospheric convection to changes in the interplanetary magnetic field.
Journal of Geophysical Research, 108 (A1), 1024.
13, pp.
https://doi.org/10.1029/2002JA009385
2002
Chisham, G. ORCID: https://orcid.org/0000-0003-1151-5934; Coleman, I.J.; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279; Pinnock, M.; Lester, M..
2002
Ionospheric signatures of split reconnection X-lines during conditions of IMF Bz < 0 and |By| ∼ |Bz|: Evidence for the antiparallel merging hypothesis.
Journal of Geophysical Research, 107 (A10), 1323.
SMP 23-1-SMP 23-15.
https://doi.org/10.1029/2001JA009124
Watt, C.E.J.; Horne, R.B. ORCID: https://orcid.org/0000-0002-0412-6407; Freeman, M.P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2002
Ion-acoustic resistivity in plasmas with similar ion and electron temperatures.
Geophysical Research Letters, 29 (1), 1001.
4-1-4-4.
https://doi.org/10.1029/2001GL013451
Hnat, B.; Chapman, S.C.; Rowlands, G.; Watkins, N.W.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279.
2002
Scaling of solar wind epsilon and the AU, AL and AE indices by WIND.
Geophysical Research Letters, 29 (22), 2078.
4, pp.
https://doi.org/10.1029/2002GL016054
Smith, A.J.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Hunter, S.; Milling, D.K..
2002
VLF, magnetic bay, and Pi2 substorm signatures at auroral and midlatitude ground stations.
Journal of Geophysical Research, 107 (A12), 1439.
14, pp.
https://doi.org/10.1029/2002JA009389
Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Watkins, Nicholas W..
2002
The heavens in a pile of sand.
Science, 298 (5595).
979-980.
https://doi.org/10.1126/science.1075555
Abel, G.A.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279.
2002
A statistical analysis of ionospheric velocity and magnetic field power spectra at the time of pulsed ionospheric flows.
Journal of Geophysical Research: Space Physics, 107 (A12), 1470.
12, pp.
https://doi.org/10.1029/2002JA009402
2001
Partamies, Ni.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Kauristie, K..
2001
On the winding of auroral spirals: Interhemispheric observations and Hallinan's theory revisited.
Journal of Geophysical Research, 106 (A12).
28,913-28,924.
https://doi.org/10.1029/2001JA900093
Coleman, Iain J.; Chisham, Gareth ORCID: https://orcid.org/0000-0003-1151-5934; Pinnock, Mike; Freeman, Mervyn P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2001
An ionospheric convection signature of antiparallel reconnection.
Journal of Geophysical Research, 106 (A12).
28,995-29,007.
https://doi.org/10.1029/2001JA900084
Watkins, N.W.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Rhodes, C.S.; Rowlands, G..
2001
Ambiguities in determination of self-affinity in the AE-index time series.
Fractals, 9 (4).
471-479.
https://doi.org/10.1142/S0218348X01001123
Phan, T.D.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Kistler, L.M.; Klecker, B.; Haerendel, G.; Paschmann, G.; Sonnerup, B.U.Ö; Baumjohann, W.; Bavassano-Cattaneo, M.B.; Carlson, C.W.; DiLellis, A.M.; Fornacon, K.-H.; Frank, L.A.; Fujimoto, M.; Georgescu, E.; Kokubun, S.; Moebius, E.; Mukai, T.; Paterson, W.R.; Reme, H..
2001
Evidence for an extended reconnection line at the dayside magnetopause.
Earth Planets Space, 53 (6).
619-625.
Watkins, N.W.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Chapman, S.C; Dendy, R.O.
2001
Testing the SOC hypothesis for the magnetosphere.
Journal of Atmospheric and Solar-Terrestrial Physics, 63 (13).
1435-1445.
https://doi.org/10.1016/S1364-6826(00)00245-5
Watkins, N.W.; Oughton, S.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279.
2001
What can we infer about the underlying physics from burst distributions observed in an RMHD simulation?
Planetary and Space Science, 49 (12).
1233-1237.
https://doi.org/10.1016/S0032-0633(01)00064-2
Horne, Richard B. ORCID: https://orcid.org/0000-0002-0412-6407; Freeman, Mervyn P.
ORCID: https://orcid.org/0000-0002-8653-8279.
2001
A new code for electrostatic simulation by numerical integration of the Vlasov and Ampere equations using MacCormack's method.
Journal of Computational Physics, 171 (1).
182-200.
https://doi.org/10.1006/jcph.2001.6781
2000
Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279.
2000
Effect of magnetopause leakage on the lifetime of magnetospheric cavity modes.
Journal of Geophysical Research, 105 (A3).
5463-5470.
https://doi.org/10.1029/1999JA900483
Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Watkins, N.W.; Riley, D.J..
2000
Evidence for a solar wind origin of the power law burst lifetime distribution of the AE indices.
Geophysical Research Letters, 27 (8).
1087-1090.
https://doi.org/10.1029/1999GL010742
Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Watkins, N.W.; Riley, D.J..
2000
Power law distributions of burst duration and interburst interval in the solar wind: Turbulence or dissipative self-organized criticality?
Physical Review E, 62 (6).
8794-8797.
https://doi.org/10.1103/PhysRevE.62.8794
Smith, A.J.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Hunter, S..
2000
VLF, magnetic and Pi2 substorm signatures.
In: Wilson, A., (ed.)
Proceedings of the Fifth International Conference on Substorms, St. Petersburg, Russia, May 2000.
European Space Agency, 577-578.
(European Space Agency Special Paper, 443).
1999
Smith, A. J.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Wickett, M. G.; Cox, B. D..
1999
On the relationship between the magnetic and VLF signatures of the substorm expansion phase.
Journal of Geophysical Research, 104 (A6).
12351-12360.
https://doi.org/10.1029/1998JA900184
Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Farrugia, C. J..
1999
Solar wind input between substorm onsets during and after the October 18–20, 1995, magnetic cloud.
Journal of Geophysical Research, 104 (A10).
22729-22744.
https://doi.org/10.1029/1999JA900204
Nishitani, Nozomu; Ogawa, Tadahiko; Pinnock, Mike; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Dudeney, John R.; Villain, Jean-Paul; Baker, Kile B.; Sato, Natsuo; Yamagishi, Hisao; Matsumoto, Haruhisa.
1999
A very large scale flow burst observed by the SuperDARN radars.
Journal of Geophysical Research, 104 (A10).
22469-22486.
https://doi.org/10.1029/1999JA900241
1998
Farrugia, C. J.; Scudder, J. D.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Janoo, L.; Lu, G.; Quinn, J. M.; Arnoldy, R. L.; Torbert, R. B.; Burlaga, L. F.; Ogilvie, K. W.; Lepping, R. P.; Lazarus, A. J.; Steinberg, J. T.; Gratton, F. T.; Rostoker, G..
1998
Geoeffectiveness of three Wind magnetic clouds: A comparative study.
Journal of Geophysical Research, 103 (A8).
17261-17278.
https://doi.org/10.1029/98JA00886
Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Farrugia, C. J..
1998
Magnetopause motions in a Newton-Busemann approach.
NATO ASI Series. Series C: Mathermatical and physical sciences, 509.
15-26.
https://doi.org/10.1007/978-94-011-5214-3_2
Lewis, R. V.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Rodger, A. S.; Watanabe, M.; Greenwald, R. A..
1998
The behavior of the electric field within the substorm current wedge.
Journal of Geophysical Research, 103 (A1).
179-190.
https://doi.org/10.1029/97JA01987
Dudeney, J. R.; Rodger, A. S.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Pickett, J.; Scudder, J.; Sofko, G.; Lester, M..
1998
The nightside ionospheric response to IMF by changes.
Geophysical Research Letters, 25 (14).
2601-2604.
https://doi.org/10.1029/98GL01413
1997
Lewis, R. V.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Rodger, A. S.; Reeves, G. D.; Milling, D. K..
1997
The electric field response to the growth phase and expansion phase onset of a small isolated substorm.
Annales Geophysicae, 15 (3).
289-299.
https://doi.org/10.1007/s00585-997-0289-6
1996
Smith, A. J.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Reeves, G. D..
1996
Post midnight VLF chorus events, a substorm signature observed at the ground nearL= 4.
Journal of Geophysical Research: Space Physics, 101 (A11).
24641-24653.
https://doi.org/10.1029/96JA02236
1995
Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Farrugia, C. J..
1995
A statistical study of the possible effects of solar wind variability on the recurrence rate of substorms.
Journal of Geophysical Research, 100 (A12).
23607-23619.
https://doi.org/10.1029/95JA02688
Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Freeman, N. C.; Farrugia, C. J..
1995
A linear perturbation analysis of magnetopause motion in the Newton-Busemann limit.
Annales Geophysicae, 13 (9).
907-918.
https://doi.org/10.1007/s00585-995-0907-0
Morelli, J. P.; Bunting, R. J.; Cowley, S. W. H.; Farrugia, C. J.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Friis-Christensen, E.; Jones, G. O. L.; Lester, M.; Lewis, R. V.; Lühr, H.; Orr, D.; Pinnock, M.; Reeves, G. D.; Williams, P. J. S.; Yeoman, T. K..
1995
Radar observations of auroral zone flows during a multiple-onset substorm.
Annales Geophysicae, 13 (11).
1144-1163.
https://doi.org/10.1007/s00585-995-1144-2
Morrison, K.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279.
1995
The role of upstream ULF waves in the generation of quasi-periodic ELF-VLF emissions.
Annales Geophysicae, 13 (11).
1127-1133.
https://doi.org/10.1007/s00585-995-1127-3
1994
Yeoman, T.K.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Reeves, G.D.; Lester, M.; Orr, D..
1994
A comparison of midlatitude Pi 2 pulsations and geostationary orbit particle injections as substorm indicators.
Journal of Geophysical Research, 99 (A3).
4085-4093.
https://doi.org/10.1029/93JA03233
Fox, N. J.; Lockwood, M.; Cowley, S. W. H.; Freeman, M. P. ORCID: https://orcid.org/0000-0002-8653-8279; Friis-Christensen, E.; Milling, D. K.; Pinnock, M.; Reeves, G. D..
1994
EISCAT observations of unusual flows in the morning sector associated with weak substorm activity.
Annales Geophysicae, 12 (6).
541-553.
https://doi.org/10.1007/s00585-994-0541-2
1993
Morelli, J.P.; Bunting, R.J.; Cowley, S.W.H.; Farrugia, C.J.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Friis-Christensen, E.; Jones, G.O.L.; Lester, M.; Lewis, R.V.; Luhr, H.; Orr, D.; Pinnock, M.; Reeves, G.D.; Williams, P.J.S.; Yeoman, T.K..
1993
Plasma flow bursts in the nightside auroral zone ionosphere and their relation to geomagnetic activity.
Advances in Space Research, 13 (4).
135-138.
https://doi.org/10.1016/0273-1177(93)90325-6
1992
Cowley, S.W.H.; Morelli, J.P.; Freeman, M.P. ORCID: https://orcid.org/0000-0002-8653-8279; Lockwood, M.; Smith, M.F..
1992
Excitation and decay of flows in the magnetosphere-ionosphere system due to magnetic reconnection at the dayside magnetopause and in the geomagnetic tail.
In:
Proceedings of the International Conference on Substorms (ICS-1), Kiruna.
Paris, European Space Agency, 117-123.
(ESA special report, 335).
Farrugia, C.J.; Freeman, Mervyn P. ORCID: https://orcid.org/0000-0002-8653-8279; Burlaga, L.F..
1992
Magnetic cloud passage at Earth and associated substorm activity.
In:
Proceedings of the International Conference on Substorms (ICS-1), Kiruna.
Paris, European Space Agency, 371-376.
(ESA SP, 335).