Items where Author is "Barnard, Dr Luke"

Article

Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172, Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, Barnard, L. A. ORCID: https://orcid.org/0000-0001-9876-4612, Brown, W. and Gyeltshen, D. (2025) Can a major geomagnetic and auroral disturbance originate from a solar active region close to the limb? Space Weather, 23 (8). e2025SW004517. ISSN 1542-7390 doi: 10.1029/2025SW004517

Watson, S., Scott, C. ORCID: https://orcid.org/0000-0001-6411-5649, Owens, M. ORCID: https://orcid.org/0000-0003-2061-2453, Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612 and Lang, M. (2025) Statistical analysis of comet disconnection events using STEREO HI and a data-assimilative solar wind model. The Astrophysical Journal, 982 (2). 66. ISSN 1538-4357 doi: 10.3847/1538-4357/adb978

Watson, S. R., Scott, C. J. ORCID: https://orcid.org/0000-0001-6411-5649, Owens, M. ORCID: https://orcid.org/0000-0003-2061-2453 and Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612 (2024) Solar wind interactions with comet C/2021 A1 Using STEREO HI and a data-assimilative solar wind model. The Astrophysical Journal, 970 (2). 101. ISSN 1538-4357 doi: 10.3847/1538-4357/ad50cf

Rutala, M. J., Jackman, C. M., Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, Tao, C., Fogg, A. R., Murray, S. A. and Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612 (2024) A multi‐model ensemble system for the Outer Heliosphere (MMESH): solar wind conditions near Jupiter. Journal of Geophysical Research: Space Physics, 129 (6). e2024JA032613. ISSN 2169-9380 doi: 10.1029/2024JA032613

Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172, Barnard, L. A. ORCID: https://orcid.org/0000-0001-9876-4612, Usoskin, I., Hayakawa, H., Pope, B. J. S. and McCracken, K. (2024) Reconstructing sunspot number by forward-modelling open solar flux. Solar Physics, 299 (1). 3. ISSN 0038-0938 doi: 10.1007/s11207-023-02241-3

Chi, Y., Shen, C., Liu, J., Zhong, Z., Owens, M. ORCID: https://orcid.org/0000-0003-2061-2453, Scott, C. ORCID: https://orcid.org/0000-0001-6411-5649, Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612, Yu, B., Heyner, D., Auster, H.-U., Richter, I., Wang, Y., Zhang, T., Guo, J., Sánchez-Cano, B., Pan, Z., Zou, Z., Xu, M., Cheng, L., Su, Z., Mao, D., Zhang, Z., Wang, C., Wu, Z., Wang, G., Xiao, S., Liu, K., Hao, X., Li, Y., Chen, M. and Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172 (2023) The dynamic evolution of multipoint interplanetary coronal mass ejections observed with BepiColombo, Tianwen-1, and MAVEN. The Astrophysical Journal Letters, 951 (1). L14. ISSN 0004-637X doi: 10.3847/2041-8213/acd7e7

Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612, Owens, M. ORCID: https://orcid.org/0000-0003-2061-2453, Scott, C. ORCID: https://orcid.org/0000-0001-6411-5649, Lang, M. and Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172 (2023) SIR-HUXt—A particle filter data assimilation scheme for CME time-elongation profiles. Space Weather, 21 (6). e2023SW003487. ISSN 1542-7390 doi: 10.1029/2023SW003487

James, L. A., Scott, C. J. ORCID: https://orcid.org/0000-0001-6411-5649, Barnard, L. A. ORCID: https://orcid.org/0000-0001-9876-4612, Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, Lang, M. S. and Jones, S. R. (2023) Sensitivity of model estimates of CME propagation and arrival time to inner boundary conditions. Space Weather, 21 (4). e2022SW003289. ISSN 1542-7390 doi: 10.1029/2022SW003289

Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612, Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, Scott, C. J. ORCID: https://orcid.org/0000-0001-6411-5649, Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172, de Koning, C. A., Amerstorfer, T., Hinterreiter, J., Möstl, C., Davies, J. A. and Riley, P. (2022) Quantifying the uncertainty in CME kinematics derived from geometric modeling of heliospheric imager data. Space Weather, 20 (1). e2021SW002841. ISSN 1542-7390 doi: 10.1029/2021SW002841

Jones, S. R., Scott, C. J., ORCID: https://orcid.org/0000-0001-6411-5649, Barnard, L. A. ORCID: https://orcid.org/0000-0001-9876-4612, Highfield, R., Lintott, C. J. and Baeten, E. (2020) The visual complexity of coronal mass ejections follows the solar cycle. Space Weather, 18 (10). e2020SW002556. ISSN 1542-7390 doi: 10.1029/2020SW002556

Owens, M. ORCID: https://orcid.org/0000-0003-2061-2453, Lang, M., Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612, Riley, P., Ben-Nun, M., Scott, C. J., Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172, Reiss, M. A., Arge, C. N. and Gonzi, S. (2020) A computationally efficient, time-dependent model of the solar wind for use as a surrogate to three-dimensional numerical magnetohydrodynamic simulations. Solar Physics, 295 (3). 43. ISSN 0038-0938 doi: 10.1007/s11207-020-01605-3

Haines, C., Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612, Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172 and Ruffenach, A. (2019) The variation of geomagnetic storm duration with intensity. Solar Physics, 294 (11). 154. ISSN 0038-0938 doi: 10.1007/s11207-019-1546-z

Barnard, L. A. ORCID: https://orcid.org/0000-0001-9876-4612, Owens, M. O. ORCID: https://orcid.org/0000-0003-2061-2453, Scott, C. J. ORCID: https://orcid.org/0000-0001-6411-5649 and Jones, S. R. (2019) Extracting inner‐heliosphere solar wind speed information from Heliospheric Imager observations. Space Weather, 17 (6). pp. 925-938. ISSN 1542-7390 doi: 10.1029/2019SW002226

Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172, Bentley, S. N., Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, Barnard, L. A. ORCID: https://orcid.org/0000-0001-9876-4612, Scott, C. J. ORCID: https://orcid.org/0000-0001-6411-5649, Watt, C. E. and Allanson, O. (2019) The development of a space climatology: 1. solar-wind magnetosphere coupling as a function of timescale and the effect of data gaps. Space Weather, 17 (1). pp. 133-156. ISSN 1542-7390 doi: 10.1029/2018SW001856

Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172, Bentley, S. N., Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, Barnard, L. A. ORCID: https://orcid.org/0000-0001-9876-4612, Scott, C. J. ORCID: https://orcid.org/0000-0001-6411-5649, Watt, C. E., Allanson, O. and Freeman, M. P. (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). pp. 157-179. ISSN 1542-7390 doi: 10.1029/2018SW002016

Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172, Bentley, S. N., Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, Barnard, L. A. ORCID: https://orcid.org/0000-0001-9876-4612, Scott, C. J. ORCID: https://orcid.org/0000-0001-6411-5649, Watt, C. E., Allanson, O. and Freeman, M. P. (2019) The development of a space climatology: 3. Models of the evolution of distributions of space weather variables with timescale. Space Weather, 17 (1). pp. 180-209. ISSN 1542-7390 doi: 10.1029/2018SW002017

Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172, Barnard, L. A. ORCID: https://orcid.org/0000-0001-9876-4612 and Macneil, A. R. (2018) Generation of inverted heliospheric magnetic flux by coronal loop opening and slow solar wind release. The Astrophysical Journal, 868 (1). L14. ISSN 0004-637X doi: 10.3847/2041-8213/aaee82

Jones, S. R., Barnard, L. A. ORCID: https://orcid.org/0000-0001-9876-4612, Scott, C. J. ORCID: https://orcid.org/0000-0001-6411-5649, Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453 and Wilkinson, J. (2017) Tracking CMEs using data from the Solar Stormwatch project; observing deflections and other properties. Space Weather, 15 (9). pp. 1125-1140. ISSN 1542-7390 doi: 10.1002/2017sw001640

Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172, Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612 and Usoskin, I. G. (2016) Tests of sunspot number sequences: 3. Effects of regression procedures on the calibration of historic sunspot data. Solar Physics, 291 (9). pp. 2829-2841. ISSN 0038-0938 doi: 10.1007/s11207-015-0829-2

Portas, A. M., Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612, Scott, C. ORCID: https://orcid.org/0000-0001-6411-5649 and Harrison, R. G. ORCID: https://orcid.org/0000-0003-0693-347X (2016) National Eclipse Weather Experiment use and evaluation of a citizen science tool for schools outreach. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 374 (2077). 20150223. ISSN 1364-503X doi: 10.1098/rsta.2015.0223 (Themed issue: Atmospheric effects of solar eclipses stimulated by the 2015 UK eclipse)

Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172, Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612 and Usoskn, I. G. (2016) An assessment of sunspot number data composites over 1845-2014. The Astrophysical Journal, 824 (1). 54. ISSN 1538-4357 doi: 10.3847/0004-637X/824/1/54

Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612, Scott, C.J. ORCID: https://orcid.org/0000-0001-6411-5649, Owens, M. ORCID: https://orcid.org/0000-0003-2061-2453, Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172, Crothers, S. R., Davies, J. A. and Harrison, R. A. (2015) Differences between the CME fronts tracked by an expert, an automated algorithm, and the Solar Stormwatch project. Space Weather, 13 (10). pp. 709-725. ISSN 1542-7390 doi: 10.1002/2015SW001280

Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612, Scott, C. ORCID: https://orcid.org/0000-0001-6411-5649, Owens, M. ORCID: https://orcid.org/0000-0003-2061-2453, Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172, Tucker-Hood, K., Wilkinson, J., Harder, B. and Baeten, E. (2015) Solar stormwatch: tracking solar eruptions. Astronomy & Geophysics, 56 (4). 4.20-4.24. ISSN 1366-8781 doi: 10.1093/astrogeo/atv131

Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172 and Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612 (2015) An arch in the UK. Astronomy and Geophysics, 56 (4). 4.25-4.30. ISSN 1366-8781 doi: 10.1093/astrogeo/atv132

Tucker-Hood, K., Scott, C. ORCID: https://orcid.org/0000-0001-6411-5649, Owens, M. ORCID: https://orcid.org/0000-0003-2061-2453, Jackson, D., Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612, Davies, J. A., Crothers, S., Lintott, C., Simpson, R., Savani, N. P., Wilkinson, J., Harder, B., Eriksson, G. M., Baeten, E. M. L. and Wan Wah, L. L. (2015) Validation of a priori CME arrival predictions made using real-time heliospheric imager observations. Space Weather, 13 (1). pp. 35-48. ISSN 1542-7390 doi: 10.1002/2014SW001106

Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, McCracken, K. G., Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172 and Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612 (2015) The heliospheric Hale cycle over the last 300 years and its implications for a “lost” late 18th century solar cycle. Journal of Space Weather and Space Climate, 5. A30. ISSN 2115-7251 doi: 10.1051/swsc/2015032

Report

Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612 and Owens, M. ORCID: https://orcid.org/0000-0003-2061-2453, (2021) Open Source modelling of the Sun's winds. Open Research Case Studies. Report. University of Reading doi: 10.48683/1926.00100589

Jones, S., Scott, C. ORCID: https://orcid.org/0000-0001-6411-5649 and Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612, (2019) Researching solar storms with citizen scientists: engaging with four thousand volunteer research assistants. Open Research Case Studies. Report. University of Reading

Conference or Workshop Item

Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453, Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172, Riley, P. and Barnard, L. ORCID: https://orcid.org/0000-0001-9876-4612 (2018) Long-term variations in the heliosphere. In: IAU Symposium 340, 2018-02-19 - 2018-02-23, Jaipur, India.