Deser, C., Terray, L., and Phillips, A. S.: Forced and Internal Components of Winter Air Temperature Trends over North America during the past 50 Years: Mechanisms and Implications, J. Climate, 29, 2237–2258, https://doi.org/10.1175/Jcli-D-15-0304.1, 2016.
Elias, E., Rango, A., Smith, R., Maxwell, C., Steele, C., and Havstad, K.: Climate Change, Agriculture and Water Resources in the Southwestern United States, J. Contemp. Wat. Res. Ed., 158, 46–61, https://doi.org/10.1111/j.1936-704X.2016.03218.x, 2016.
Hoerling, M., Eischeid, J., Kumar, A., Leung, R., Mariotti, A., Mo, K., Schubert, S., and Seager, R.: Causes and Predictability of the 2012 Great Plains Drought, B. Am. Meteorol. Soc., 95, 269–282, https://doi.org/10.1175/Bams-D-13-00055.1, 2014.
Horowitz, R. L., McKinnon, K. A., and Simpson, I. R.: Circulation and Soil Moisture Contributions to Heatwaves in the United States, J. Climate, 35, 8031–8048, https://doi.org/10.1175/jcli-d-21-0156.1, 2022.
Horton, D. E., Johnson, N. C., Singh, D., Swain, D. L., Rajaratnam, B., and Diffenbaugh, N. S.: Contribution of changes in atmospheric circulation patterns to extreme temperature trends, Nature, 522, 465–469, https://doi.org/10.1038/nature14550, 2015.
Hu, D. and Guan, Z.: Decadal Relationship between the Stratospheric Arctic Vortex and Pacific Decadal Oscillation, J. Climate, 31, 3371–3386, https://doi.org/10.1175/JCLI-D-17-0266.1, 2018.
Hu, Q. and Feng, S.: Variation of the North American summer monsoon regimes and the Atlantic multidecadal oscillation, J. Climate, 21, 2371–2383, https://doi.org/10.1175/2007jcli2005.1, 2008.
Hu, Q., Feng, S., and Oglesby, R. J.: Variations in North American Summer Precipitation Driven by the Atlantic Multidecadal Oscillation, J. Climate, 24, 5555–5570, https://doi.org/10.1175/2011JCLI4060.1, 2011.
Hu, Z. Z. and Huang, B. H.: Interferential Impact of ENSO and PDO on Dry and Wet Conditions in the US Great Plains, J. Climate, 22, 6047–6065, https://doi.org/10.1175/2009jcli2798.1, 2009.
Jezequel, A., Yiou, P., and Radanovics, S.: Role of circulation in European heatwaves using flow analogues, Clim. Dynam., 50, 1145–1159, https://doi.org/10.1007/s00382-017-3667-0, 2018.
Kaski, S. and Lagus, K.: Comparing self-organizing maps, in: Artificial Neural Networks – ICANN 96, edited by: von der Malsburg, C., von Seelen, W., Vorbrüggen, J. C., and Sendhoff, B., Springer, Berlin, Heidelberg, 809–814, https://doi.org/10.1007/3-540-61510-5_136, 1996.
Kiem, A. S., Frank, S. W., and Kuczera, G.: Multi-decadal variability of flood risk, Geophys. Res. Lett., 30, 1035, https://doi.org/10.1029/2002GL015992, 2003.
Kirchmeier-Young, M. C. and Zhang, X. B.: Human influence has intensified extreme precipitation in North America, P. Natl. Acad. Sci. USA, 117, 13308–13313, https://doi.org/10.1073/pnas.1921628117, 2020.
Kohonen, T.: The Self-Organizing Map, Proc. IEEE, 78, 1464–1480, https://doi.org/10.1109/5.58325, 1990.
Lehner, F., Deser, C., Simpson, I. R., and Terray, L.: Attributing the US Southwest's Recent Shift Into Drier Conditions, Geophys. Res. Lett., 45, 6251–6261, https://doi.org/10.1029/2018gl078312, 2018.
Liu, Y. G. and Weisberg, R. H.: A Review of Self-Organizing Map Applications in Meteorology and Oceanography, Self Organizing Maps – Applications and Novel Algorithm Design, 253–272, https://doi.org/10.5772/566, 2011.
Mankin, J. S., Simpson, I., Hoell, A., Fu, R., Lisonbee, J., Sheffield, A., and Barrie, D.: NOAA Drought Task Force Report on the 2020–2021 Southwestern U.S. Drought, NOAA Drought Task Force, MAPP, and NIDIS,
https://www.drought.gov/documents/noaa-drought-task-force-report-2020-2021-southwestern-us-drought (last access: 7 March 2023), 2021.
McKinnon, K. A. and Deser, C.: The Inherent Uncertainty of Precipitation Variability, Trends, and Extremes due to Internal Variability, with Implications for Western US Water Resources, J Climate, 34, 9605-9622, 10.1175/Jcli-D-21-0251-1, 2021.
Myoung, B. and Nielsen-Gammon, J. W.: The Convective Instability Pathway to Warm Season Drought in Texas. Part I: The Role of Convective Inhibition and Its Modulation by Soil Moisture, J. Climate, 23, 4461–4473, https://doi.org/10.1175/2010jcli2946.1, 2010.
Parton, W. J., Gutmann, M. P., Merchant, E. R., Hartman, M. D., Adler, P. R., McNeal, F. M., and Lutz, S. M.: Measuring and mitigating agricultural greenhouse gas production in the US Great Plains, 1870–2000, P. Natl. Acad. Sci. USA, 112, E4681–E4688, https://doi.org/10.1073/pnas.1416499112, 2015.
Pu, B., Dickinson, R. E., and Fu, R.: Dynamical connection between Great Plains low-level winds and variability of central Gulf States precipitation, J. Geophys. Res.-Atmos., 121, 3421–3434, 10.1002/2015jd024045, 2016.
Reusch, D. B., Alley, R. B., and Hewitson, B. C.: Relative Performance of Self-Organizing Maps and Principal Component Analysis in Pattern Extraction from Synthetic Climatological Data, Polar Geogr., 29, 188–212, https://doi.org/10.1080/789610199, 2005.
Ropelewski, C. F. and Halpert, M. S.: North-American Precipitation and Temperature Patterns Associated with the Elnino Southern Oscillation (Enso), Mon. Weather Rev., 114, 2352–2362, https://doi.org/10.1175/1520-0493(1986)114<2352:Napatp>2.0.Co;2, 1986.
Seager, R., Goddard, L., Nakamura, J., Henderson, N., and Lee, D. E.: Dynamical Causes of the 2010/11 Texas-Northern Mexico Drought, J. Hydrometeorol., 15, 39–68, https://doi.org/10.1175/Jhm-D-13-024.1, 2014.
Siler, N., Proistosescu, C., and Po-Chedley, S.: Natural Variability Has Slowed the Decline in Western US Snowpack Since the 1980s, Geophys. Res. Lett., 46, 346–355, https://doi.org/10.1029/2018gl081080, 2019.
Sippel, S., Meinshausen, N., Merrifield, A., Lehner, F., Pendergrass, A. G., Fischer, E., and Knutti, R.: Uncovering the forced climate response from a single ensemble member using statistical learning, J. Climate, 32, 5677–5699, https://doi.org/10.1175/jcli-d-18-0882.1, 2019.
Swales, D., Alexander, M., and Hughes, M.: Examining moisture pathways and extreme precipitation in the US Intermountain West using self-organizing maps, Geophys. Res. Lett., 43, 1727–1735, https://doi.org/10.1002/2015gl067478, 2016.
Terray, L.: A dynamical adjustment perspective on extreme event attribution, Weather Clim Dynam., 2, 971–989, https://doi.org/10.5194/wcd-2-971-2021, 2021.
Vatanen, T.: SOM-Toolbox, GitHub [code],
https://github.com/ilarinieminen/SOM-Toolbox (last access: 14 August 2021), 2021.
Vatanen, T., Osmala, M., Raiko, T., Lagus, K., Sysi-Aho, M., Oresic, M., Honkela, T., and Landesmaki, H.: Self-organization and missing values in SOM and GTM, Neurocomputing, 147, 60–70, https://doi.org/10.1016/j.neucom.2014.02.061, 2015.
Whan, K. and Zwiers, F.: The impact of ENSO and the NAO on extreme winter precipitation in North America in observations and regional climate models, Clim. Dynam., 48, 1401–1411, https://doi.org/10.1007/s00382-016-3148-x, 2017.
Yiou, P., Vautard, R., Naveau, P., and Cassou, C.: Inconsistency between atmospheric dynamics and temperatures during the exceptional 2006/2007 fall/winter and recent warming in Europe, Geophys. Res. Lett., 34, L21808, https://doi.org/10.1029/2007gl031981, 2007.
Zhang, Y., Wallace, J. M., and Battisti, D. S.: ENSO-like interdecadal variability: 1900–93, J. Climate, 10, 1004–1020, https://doi.org/10.1175/1520-0442(1997)010<1004:Eliv>2.0.Co;2, 1997.
Zhuang, Y. Z., Fu, R., and Wang, H. Q.: Large-Scale Atmospheric Circulation Patterns Associated With US Great Plains Warm Season Droughts Revealed by Self-Organizing Maps, J. Geophys. Res.-Atmos., 125, e2019JD031460, https://doi.org/10.1029/2019JD031460, 2020.
Zhuang, Y. Z., Erfanian, A., and Fu, R.: Dryness over the US Southwest, a Springboard for Cold Season Pacific SST to Influence Warm Season Drought over the US Great Plains, J. Hydrometeorol., 22, 63–76, https://doi.org/10.1175/Jhm-D-20-0029.1, 2021a.
Zhuang, Y. Z., Fu, R., Santer, B. D., Dickinson, R. E., and Hall, A.: Quantifying contributions of natural variability and anthropogenic forcings on increased fire weather risk over the western United States, P. Natl. Acad. Sci. USA, 118, e2111875118, https://doi.org/10.1073/pnas.2111875118, 2021b.
