Dr. Willie Soon

Editorial Boards

1. 2020-present: Editorial Board Member for Geoscience (MDPI).
2. 2002-2016: Receiving Editor for New Astronomy (Elsevier).

Social Media

• Researchgate profile
• Google Scholar profile

Books

1. P. N. Okeke and W. Soon, Introduction to Astronomy (University of Nigeria Press, University Physics Series), 2004.
2. W. Soon and S. H. Yaskell, The Maunder Minimum and The Variable Sun-Earth Connection, World Scientific Publishing Company, 2004

Peer-reviewed publications

1. R. Connolly, Willie Soon, M. Connolly, S. Baliunas, J. Berglund, C. J. Butler, R. G. Cionco, A. G. Elias, V. M. Fedorov, H. Harde, G. W. Henry, D. V. Hoyt, O. Humlum, D. R. Legates, S. Luning, N. Scafetta, J.-E. Solheim, L. Szarka, H. van Loon, V. M. Velasco Herrera, R. C. Willson, H. Yan and W. Zhang (2021). How much has the Sun influenced Northern Hemisphere temperature trends? An ongoing debate. Research in Astronomy and Astrophysics (accepted for publication).
2. X.H. Zhao, Willie Soon, V. M. Velasco Herrera, Holocene millennial-scale solar variability and the climatic responses on Earth, Universe, 7, 36 (2021). Journal homepage
3. V. Velasco Herrera, Willie Soon, D. R. Legates, Does machine learning reconstruct missing sunspots and forecast a new solar minimum?, Advances in Space Research, in press (2021). Journal homepage
4. L. Szarka, Willie Soon, R. G. Cionco, How the astronomical aspects of climate science were settled? On the Milankovitch and Bacsak anniversaries, with lessons for today, Advances in Space Research, 67, 700-707 (2021). Journal homepage
5. Travis S. Metcalfe, Jennifer L. van Saders, Sarbani Basu, Derek Buzasi, William J. Chaplin, Ricky Egeland, Rafael A. Garcia, Patrick Gaulme, Daniel Huber, Timo Reinhold, Hannah Schunker, Keivan G. Stassun, Thierry Appourchaux, Warrick H. Ball, Timothy R. Bedding, Sebastien Deheuvels, Lucia Gonzalez-Cuesta, Rasmus Handberg, Antonio Jimenez, Hans Kjeldsen, Tanda Li, Mikkel N. Lund,Savita Mathur, Benoit Mosser, Martin B. Nielsen, Anthony Noll, Zeynep Celik Orhan, Sibel Ortel, Angela R. G. Santos, Mutlu Yildiz, Sallie Baliunas, Willie Soon, The evolution of rotation and magnetic activity in 94 Aqr Aa from Asteroseismology with TESS, Astrophysical Journal, 900: 154 (2020). Journal homepage
6. X.H. Zhao, Willie Soon, V. M. Velasco Herrera, Evidence for solar modulation on the millennial-scale climate change of Earth, Universe, 6, 153 (2020). Journal homepage
7. S. Qiu, N. Wang, Willie Soon, G. Lu, M. Jia, X. Dou, Sporadic sodium layers: A possible tracer for the conjunction between the upper and lower atmosphere, Atmospheric Chemistry and Physics Discussions, December 29 (2020). Journal homepage
8. C.C. Liu, H. Yan, H.B. Fei, G. Shi, P. Cheng, H.F. Wen, S.G. Kang, M. Li, Willie Soon, J. Dodson, W.J. Zhou, Z.Sh. An, Dynamic of Tridacna spp. population variability in northern SCS over past 4500 years derived from AMS 14C dating, Science of the Total Environment, 748, 141359 (2020). Journal homepage
9. C. O'hAiseadha, G. Quinn, R. Connolly, M. Connolly and Willie Soon. Energy and climate policy: An evaluation of global climate change expenditure 2011-2018. Energies, 13, 4839 (2020). Journal homepage
10. R. Connolly, M. Connolly, R.M. Carter and Willie Soon. How much human-caused global warming should we expect with business-as-usual (BAU) climate policies? A semi-empirical assessment. Energies, 13, 1365 (2020). Journal homepage
11. Rodolfo Gustavo Cionco, Willie Soon, Ana G. Elias, and Nancy Esther Quaranta, Latitudinal insolation gradients throughout the Holocene II-High frequency variations, Advances in Space Research, 66, 1992-2000 (2020). Journal homepage
12. Rodolfo Gustavo Cionco, Willie Soon, and Nancy Esther Quaranta, On the calculation of latitudinal insolation gradients throughout the Holocene: A new tool for solar forcing simulations, Advances in Space Research, 66, 720-742 (2020). Journal homepage
13. Suyog Garg, Bidya Binay Karak, Ricky Egeland, Willie Soon, Sallie Baliunas, Waldmeier effect in stellar cycles, Astrophysical Journal, 886, 132 (2019). Journal homepage
14. Willie Soon, Ronan Connolly, Michael Connolly, Peter O'Neill, Jingyun Zheng, Quansheng Ge, Zhixin Hao and Hong Yan (2019). Reply to Li & Yang's comments on "Comparing the current and early 20th century warm periods in China". Earth-Science Reviews, 189, 102950. Journal homepage
15. T. Heredia, F. Bazzano, R. G. Cionco, Willie Soon, F. Medina, and A. Elias, Searching for solar-like interannual to bidecadal effects on temperature and precipitation over a Southern Hemisphere location, Journal of Atmospheric and Solar-Terrestrial Physics, 193, 105094 (2019). Journal homepage
16. R. Connolly, M. Connolly, Willie Soon, D.R. Legates, R.G. Cionco and V. M. Velasco Herrera. Northern hemisphere snow-cover trends (1967-2018): A comparison between climate models and observations. Geosciences, 9(3), 135 (2019). Journal homepage
17. ChengCheng Liu, Hong Yan, Haobei Fei, Xiaolin Ma, Wenchao Zhang, Ge Shi, Willie Soon, John Dodson, Zhisheng An, Temperature seasonality and ENSO variability in northern South China Sea during Medieval Climate Anomaly interval as derived from the Sr/Ca ratios of Tridacna shell, Journal of Asian Earth Sciences, 180, 103880 (2019). Journal homepage
18. W. Soon, V.M. Velasco Herrera, R. G. Cionco, S. Qiu, S. Baliunas, R. Egeland, G. Henry, Co-variations of chromospheric and photometric variability of the young Sun analog HD 30495: Evidence for and interpretation of mid-term periodicities, Monthly Notices of the Royal Astronomical Society, 483: 2748-2757 (2019). Journal homepage
19. Shican Qiu, Willie Soon, Xiankang Dou, Xianghui Xie, Tao Li, Wanyin Wang, Mingjiao Jia, Chao Ban, Xin Fang, and Yihuan Tang, Sudden sodium layers: Their appearance and disappearance, Journal of Geophysical Research: Space Physics, 123, 10.1029/2017JA024883 (2018). Journal homepage
20. Willie Soon, Ronan Connolly, Michael Connolly, Peter O'Neill, Jingyun Zheng, Quansheng Ge, Zhixin Hao and Hong Yan, Comparing the current and early 20th century warming periods in China, Earth-Science Reviews, 185, 80- 101 (2018). Journal homepage
21. V.M. Velasco Herrera, J. Perez-Peraza, W. Soon, and J.C. Marquez-Adame, The Quasi-Biennial Oscillation of 1.7 years in Ground Level Enhancement Events, New Astronomy, 60, 7-13 (2018). Journal homepage
22. Rodolfo Gustavo Cionco, Jose Ernesto Valentini, Nancy Esther Quaranta, and Willie Soon, Lunar fingerprints in the modulated incoming solar radiation: In- situ insolation and latitudinal insolation gradients as two important interpretive metrics for paleoclimatic data records and theoretical climate modeling, New Astronomy, 58, 96-106 (2018). Journal homepage
23. Ronan Connolly, Michael Connolly, and Willie Soon, Re-calibration of Arctic sea ice extent datasets using Arctic surface air temperature records, Hydrological Sciences Journal, 62, 1317-1340 (2017). Journal homepage
24. Rodolfo Gustavo Cionco, and Willie Soon, Short-term Orbital Forcing: A quasi- review and a reappraisal of realistic boundary conditions for climate modeling, Earth-Science Reviews, 166, 206-222 (2017). Journal homepage
25. Ricky Egeland, Willie Soon, Sallie Baliunas, Jefferey Hall, Alexei Pevtsov, and Luca Bertello, The Mount Wilson Observatory S-Index of the Sun, Astrophysical Journal, 835: 25 (16 pp) (2017). Journal homepage
26. Velasco Herrera V.M., Soon, W., Velasco Herrera G., Traversi R and Horiouchi K, Generalization of the cross-wavelet functions, New Astronomy, 56, 86-93 (2017). Journal homepage
27. K. Olah, Zs. Kovari, K. Petrovay, W. Soon, S. Baliunas, Z. Kollath, K. Vida, Magnetic cycles at different ages of stars, Astronomy & Astrophysics, 590, A133 (2016). Journal homepage
28. Willie Soon, Ronan Connolly, Michael Connolly, Re-evaluating the role of solar variability on Northern Hemisphere temperature trends since the 19th century, Earth-Science Reviews, 150, 409-452 (2015). Journal homepage
29. I. G. Usoskin, et al. (with Willie Soon as one co-author), The Maunder Minimum (1645-1715) was indeed a grand minimum: A reassessment of multiple datasets, Astronomy & Astrophysics, 581, A95 (2015). Journal homepage
30. C. Monckton of Brenchley, W. Soon, D. R. Legates, W.M. Briggs, Keeping it simple: the value of an irreducibly simple climate model, Science Bulletin, 60, 1378-1390 (2015). Journal homepage
31. W. Soon, and D. R. Legates, Response to the comment on: "Soon, W., and Legates, D.R., solar irradiance modulation of equator-to-pole (Arctic) temperature gradients: empirical evidence for climate variation on multi-decadal timescales. Journal of Atmospheric and Solar-Terrestrial Physics, 93, (2013) 45-56" by F. Meunier and A. H. Reis", Journal of Atmospheric and Solar-Terrestrial Physics, 128, 92-93 (2015). Journal homepage
32. Hong Yan, Wei Wei, Willie Soon, ZhiSheng An, WeiJian Zhou, ZhongHui Liu, YuHong Wang, Robert M Carter, Dynamics of the Intertropical Convergence Zone over the Western Pacific During the Little Ice Age, Nature Geoscience, 8, 315-320 (2015). Journal homepage
33. C. Monckton of Brenchley, W. Soon, D. R. Legates, W.M. Briggs, Why models run hot: results from an irreducibly simple climate model, Science Bulletin, 60, 122-135 (2015). Journal homepage
34. Hong Yan, Willie Soon, YuHong Wang, A composite sea surface temperature record of the northern South China Sea for the past 2500 years: A unique look into seasonality and seasonal climate changes during warm and cold periods, Earth- Science Reviews, 141, 122-135 (2015). Journal homepage
35. K. M. Hiremath, H. Manjunath, and W. Soon, Indian Summer Monsoon Rainfall: Dancing with the Tunes of the Sun, New Astronomy, 35, 8-19 (2015). Journal homepage
36. Rodolfo Gustavo Cionco, and Willie Soon, A phenomenological study of the timing of solar activity minima of the last millennium through a physical modeling of the Sun-Planets Interactions, New Astronomy, 34, 164-171 (2015). Journal homepage
37. D. R. Legates, W. Soon, W.M. Briggs, and C. Monckton of Brenchley, Climate consensus and misinformation: A rejoinder to Agnotology, Scientific Consensus, and the Teaching and Learning of Climate Change, Science and Education, 24, 299-318 (2015). Journal homepage
38. David R. Legates, Willis Eschenbach, and Willie Soon, Arctic albedo changes are small compared with changes in cloud cover in the tropics (Letter), Proceedings of the (U.S.) National Academy of Sciences, 111, E2157-E2158 (2014). Journal homepage
39. Willie Soon, Victor Velasco, Selvaraj Kandasamy, Rita Traversi, Ilya G Usoskin, Chen-Tung A Chen, Jiann-Yuh Lou, Shuh-Ji Kao, Robert M Carter, Valery Pipin, Mirko Severi, Silvia Becagli, A review of Holocene solar-linked climatic variation on centennial to millennial timescales: Physical processes, interpretative frame- works and a new multiple cross-wavelet transform algorithm, Earth-Science Reviews, 134, 1-15 (2014). Journal homepage
40. W. Soon, and D. R. Legates, Solar Irradiance Modulation of Equator-to-Pole (Arctic) Temperature Gradients: Empirical Evidence for Climate Variation on Multi-decadal Timescales, Journal of Atmospheric and Solar-Terrestrial Physics, 93, 45-56 (2013). Journal homepage
41. D. R. Legates, W. Soon, and W.M. Briggs, Learning and teaching climate science: The perils of consensus knowledge using agnotology, Science and Education, 22, 2007-2017 (2013). Journal homepage
42. W. Soon, K. Dutta, D. R. Legates, V. Velasco, and W. Zhang, Variation in Surface Air Temperature of China During the 20th Century, Journal of Atmospheric and Solar-Terrestrial Physics, 73, 2331-2344 (2011). Journal homepage
43. R. Agnihotri, K. Dutta, and W. Soon, Temporal Derivative of Total Solar Irradiance and Anomalous Indian Summer Monsoon: An Empirical Evidence for a Sun-Climate Connection, Journal of Atmospheric and Solar-Terrestrial Physics, 73, 1980-1987 (2011). Journal homepage
44. J. S. Armstrong, K. C. Green, W. Soon, Research on Forecasting for the Man-made Global Warming Alarm, Energy & Environment, 22, 1091-1104 (2011). Journal homepage
45. W. Soon and D. R. Legates, Avoiding carbon myopia: Three considerations for policy makers concerning manmade carbon dioxide, Ecology Law Currents, 37, 1-9 (2010). Journal homepage
46. M. M. Katsova, M. A. Livshits, W. Soon, S. L. Baliunas, and D. D. Sokoloff, Differential Rotation of some HK-Project stars and the butterfly diagrams, New Astronomy, 15, 274-281 (2010). Journal homepage
47. K. Olah, Z. Kollath, T. Granzer, K. G. Strassmeier, A. F. Lanza, S. Jarvinen, H. Korhonen, S. L. Baliunas, W. Soon, S, Messina, and G. Cutispoto, Multiple and changing cycles of active stars. II. Results, Astronomy & Astrophysics, 501, 701-713 (2009). Journal homepage
48. K. C. Green, J. S. Armstrong, W. Soon, Validity of climate change forecasting for public policy decision making, International Journal of Forecasting, 25, 826-832 (2009). Journal homepage
49. W. Soon, Comments on HESS Opinion "A random walk on water" by D. Koutsoyiannis, Hydrology and Earth System Sciences Discussions, 6, C2852- C2856 (2009). Journal homepage
50. W. Soon, Solar Arctic-mediated climate variation on multidecadal to centennial timescales: Empirical evidence, mechanistic explanation, and testable consequences, Physical Geography, 30, 144-184 (2009). Journal homepage
51. J. Liu, B. Wang, Q. Ding, X. Kuang, W. Soon, E. Zorita, Centennial variations of the global monsoon precipitation in the last millennium: Results from ECHO-G model, Journal of Climate, 22, 2356-2371 (2009). Journal homepage
52. M. Dyck, W. Soon (as co-first authors) et al., "Response to Dyck et al. (2007) on polar bears and climate change in western Hudson Bay by Stirling et al. (2008)", Ecological Complexity, 5, 289-302 (2008). Journal homepage
53. J. S. Armstrong, K. C. Green, W. Soon, Polar bear population forecasts: A public-policy forecasting audit, Interfaces, 38, 382-405 (2008) (plus 3 comments and our reply). Journal homepage
54. G. W. Lockwood, B. A. Skiff, G. W. Henry, S. Henry, R.R. Radick, S.L. Baliunas, R.A. Donahue, and W. Soon, Patterns of photometric and chromospheric variations among sun-like stars: A 20-year perspective, Astrophysical J. Suppl. Series, 171, 260-303 (2007). Journal homepage
55. W. Soon, Implications of the secondary role of carbon dioxide and methane forcing in climate change: Past, present, and future, Physical Geography, 28, 97-125 (2007). Journal homepage
56. M. Dyck, W. Soon (as co-first authors) et al. Polar Bears of Western Hudson Bay and Climate Change: Warming Spring Air Temperatures as the "Ultimate" Survival Control Factor?, Ecological Complexity, 4, 73-84 (2007). Journal homepage
57. K. Olah, K. G. Strassmeier, T. Granzer, W. Soon, S. L. Baliunas, Changing stellar activity cycles, Astronomische Nachrichten, 328, 1072-1074 (2007). Journal homepage
58. S. Baliunas, P. Frick, D. Moss, E. Popova, D. Sokoloff and W. Soon (alphabetical listing), Anharmonic and standing dynamo waves: Theory and observation of stellar magnetic activity, Monthly Notices of the Royal Astronomical Society, 365, 181 (2006). Journal homepage
59. W. Soon, Variable solar irradiance as a plausible agent for multidecadal variations in the Arctic-wide surface air temperature record of the past 130 years, Geophysical Research Letters, 32, (2005). Journal homepage
60. S. Baliunas, P. Frick, D. Moss, E. Popova, D. Sokoloff and W. Soon (alphabetical listing), Anharmonicity of Stellar Cycles: A wavelet quantification, Solar Physics, 224, 179 (2004). Journal homepage
61. P. Frick, W. Soon, E. Popova and S. Baliunas, Time-spectra of chromospheric activity of old solar-type stars: Detection of rotational signals from Double Wavelet Analysis, New Astronomy, 9, 599 (2004). Journal homepage
62. J. Lin and W. Soon, Evolution of Morphological Features of CMEs Deduced from Catastrophe Model of Solar Eruptions, New Astronomy, 9, 611 (2004). Journal homepage
63. W. Soon, D. R. Legates and S. Baliunas, Estimation and Representation of Long- Term (> 40 years) Trends of Northern-Hemisphere-Gridded Surface Temperature: A Note of Caution, Geophysical Research Letters, 31, L03209 (2004). Journal homepage
64. W. Soon, S. Baliunas, and D. R. Legates, Comment on "On Past Temperature and Anomalous Late-20th Century Warmth", Eos, 84 (no. 44), 473 (2003). Journal homepage
65. W. Soon, S. Baliunas, C. Idso, S. Idso and D. R. Legates, Reconstructing Climatic and Environmental Changes of the Past 1000 Years: A Reappraisal, Energy & Environment, 14, 233 (2003). Journal homepage
66. W. Soon and S. Baliunas, Annual Progress Report on Global Warming: 2001- 2002, Progress in Physical Geography, 27, 448 (2003). Journal homepage
67. W. Soon, S. Baliunas, S. B. Idso, K. Ya. Kondratyev, and E. S. Posmentier, Reply to Comments on "Modeling climatic effects of anthropogenic CO2 emissions: Unknowns and uncertainties" by D. J. Karoly, J. F. B., Mitchell, M. Allen, G. Hegerl, J. Marengo, F. Zwiers, Climate Research, 24, 93 (2003). https://www.int-res.com/articles/cr2003/24/c024p093.pdf Journal homepage
68. W. Soon and S. Baliunas, Climatic and Environmental Changes of the Last 1000 Years, Climate Research, 23, 89 (2003). Journal homepage
69. J. Lin, W. Soon and S. Baliunas, Theories of Solar Eruptions: A Review, New Astronomy Reviews, 47, 53 (2003). Journal homepage
70. J. Lin, W. Soon and S. Baliunas, Eruptive processes in the solar atmosphere and the theories, (in Chinese), Chinese Science Bulletin, 47, 1601-1612 (2002). Journal homepage
71. W. Soon, S. Baliunas, S. B. Idso, K. Ya. Kondratyev, and E. S. Posmentier, Reply to Comments on "Modeling climatic effects of anthropogenic CO2 emissions: Unknowns and uncertainties" by James Risbey, Climate Research, 22, 187 (2002). Journal homepage
72. W. Soon, S. Baliunas, S. B. Idso, K. Ya. Kondratyev, and E. S. Posmentier, Modeling climatic effects of anthropogenic CO2 emissions: Unknowns and un- certainties, Climate Research, 18, 259 (2001). Journal homepage
73. W. Soon, S. Baliunas, K. S. Demirchan, S. B. Idso, K. Ya. Kondratyev, and E. S. Posmentier, The impact of anthropogenic CO2 emission on climate: Unresolved Problems (in Russian), Proceedings of the Russian Geographical Society, 133, 1 (2001).
74. W. H. Soon, E. S. Posmentier, and S. L. Baliunas, Climate hypersensitivity to solar forcing ? Annales Geophysicae, 18, 583 (2000). Journal homepage
75. W. H. Soon, S. L. Baliunas, E. S. Posmentier, and P. N. Okeke, Variations of solar coronal hole area and terrestrial lower tropospheric air temperature from 1979 to Mid-1998, New Astronomy, 4, 563 (2000). Journal homepage
76. G. W. Henry, S. L. Baliunas, R. A. Donahue, F. C. Fekel, and W. Soon, Photo- metric and Ca II H and K Spectroscopic Variations in Sun-like Stars with Planets III, Astrophysical J., 431, 415 (2000). Journal homepage
77. E. S. Posmentier, W. H. Soon, and S. L. Baliunas (equal contribution by Posmentier and Soon), Natural variability in an-ocean-atmosphere climate model, Journal of Physics Malaysia, 19, 157 (2000).
78. W. H. Soon, S. L. Baliunas, A. B. Robinson, and Z. W. Robinson, Environmental Effects of Increased Atmospheric Carbon Dioxide, Climate Research, 13, 149 (1999). Journal homepage
79. W. Soon, P. Frick, and S. Baliunas, Lifetime of surface features and stellar rotation: A wavelet time-frequency approach, Astrophysical J. Letters, 510, L135 (1999). Journal homepage
80. P. Frick, S. Baliunas, D. Galyagin, D. Sokoloff and W. Soon, Wavelet analysis of stellar chromospheric activity variations, Astrophysical J., 483, 426 (1997). Journal homepage
81. S. Baliunas, P. Frick, D. Sokoloff and W. Soon (alphabetical listing with W. Soon as lead author), Timescales and trends in the Central England Temperature Data (1659-1990): A Wavelet Analysis, Geophysical Research Letters, 24, 1351 (1997). Journal homepage
82. S. L. Baliunas, G. W. Henry, R. A. Donahue, F. C. Fekel, and W. H. Soon, Properties of Sun-like Stars with Planets: ?1 Cancri, ? Bootis, and ? Andromedae, Astrophysical J. Letters, 474, L119 (1997). Journal homepage
83. G. W. Henry, S. L. Baliunas, R. A. Donahue, W. H. Soon, and S. H. Saar, Properties of Sun-like Stars with Planets: 51 Pegasi, 47 Ursae Majoris, 70 Virginis, and HD 114762, Astrophysical J., 474, 503 (1997). Journal homepage
84. W. H. Soon, E. S. Posmentier, and S. L. Baliunas, Inference of solar irradiance variability from terrestrial temperature changes, 1880-1993: An astrophysical application of the sun-climate connection, Astrophysical J., 472, 891 (1996). Journal homepage
85. S. L. Baliunas, E. Nesme-Ribes, D. D. Sokoloff, W. H. Soon (alphabetical listing with W. Soon as lead author), A Dynamo Interpretation of Stellar Activity Cycles, Astrophysical J., 460, 848 (1996). Journal homepage
86. S. L. Baliunas, D. D. Sokoloff, W. H. Soon (alphabetical listing with W. Soon as lead author), Magnetic Field and Rotation in Lower Main Sequence Stars: An Empirical Time-Dependent Magnetic Bode's Relation?, Astrophysical J. Letters, 457, L99 (1996). Journal homepage
87. S. L. Baliunas, and W. H. Soon, Are Variations in the Length of the Activity Cycle Related to Changes in Brightness in Solar-type Stars? Astrophysical J., 450, 896 (1995). Journal homepage
88. H. J. Choi, W. H. Soon, R. A. Donahue, S. L. Baliunas, and G. W. Henry, A Study of Variability in a Sample of G-K Giants, Publications of the Astronomical Society of the Pacific, 107, 744 (1995). Journal homepage
89. V. C. Cristian, R. A. Donahue, W. H. Soon, S. L. Baliunas, and G. W. Henry, Pulsation Timescales and Amplitudes in a Sample of Bright Semi-Regular Variable Stars, Publications of the Astronomical Society of the Pacific, 107, 411 (1995). Journal homepage
90. S. L. Baliunas, R. A. Donahue, W. H. Soon, J. H. Horne, and others, Chromospheric variations in main-sequence stars. II, Astrophysical J., 438, 269 (1995). Journal homepage
91. W. H. Soon, S. L. Baliunas and Q. Zhang, Variations in surface activity of the Sun and solar-type stars, Solar Physics, 154, 385 (1994). Journal homepage
92. Q. Zhang, W. H. Soon, S. L. Baliunas, G. W. Lockwood, B. A. Skiff and R. R. Radick, A method of determining possible brightness variation of the Sun in past centuries from observations of solar-type stars, Astrophysical J. Letters, 427, L111 (1994). Journal homepage
93. W. H. Soon, Q. Zhang, S. L. Baliunas and R. L. Kurucz, The Mount Wilson Observatory metallicity index, CRV : Comparison to other photometric systems, Astrophysical J., 416, 787 (1993). Journal homepage
94. W. H. Soon, S. L. Baliunas and Q. Zhang, An interpretation of cycle periods of stellar chromospheric activity, Astrophysical J. Letters, 414, L33 (1993). Journal homepage
95. J. A. Kunc and W. H. Soon, Maximum principal quantum numbers of the atomic hydrogen in the solar chromosphere and photosphere, Astrophysical J., 396, 364 (1992). Journal homepage
96. W. H. Soon, Analytical cross sections and rate coefficients for H-H inelastic collisions, Astrophysical J., 394, 717 (1992). Journal homepage
97. J. A. Kunc and W. H. Soon, Analytical ionization cross sections for atomic collisions, J. Chem. Phys., 95, 5738 (1991). Journal homepage
98. J. A. Kunc and W. H. Soon, Electron Boltzmann equation in non-thermal plasmas, Phys. Rev. A, 43, 4409 (1991). Journal homepage
99. W. H. Soon and J. A. Kunc, Kinetics and continuum emission of negative atomic ions in partially-ionized plasmas, Phys. Rev. A, 43, 723 (1991). Journal homepage
100. W. H. Soon and J. A. Kunc, Radiation of partially-ionized atomic hydrogen, Phys. Fluids B, 2, 2833 (1990). Journal homepage
101. W. H. Soon and J. A. Kunc, Nitrogen-plasma continuum emission associated with N?(3P) and N?(1D) ions, Phys. Rev. A, 41, 4531 (1990). Journal homepage
102. W. H. Soon and J. A. Kunc, Thermal nonequilibrium in partially-ionized atomic oxygen, Phys. Rev. A, 41, 825 (1990). Journal homepage
103. J. A. Kunc and W. H. Soon, Collisional-radiative nonequilibrium in partially- ionized atomic nitrogen, Phys. Rev. A, 40, 5822 (1989). Journal homepage