Publications

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[27] Roach, L. A., Smith, M. M., Herman, A., and Ringeisen, D. (2024). Physics of the seasonal sea ice zone. Annual Review of Marine Science, 17, https://doi.org/10.1146/annurev-marine-121422-015323. [Download author accepted manuscript]

[26] Roach, L. A. and Meier, W.N. (2024). Sea ice in 2023. Nature Reviews Earth & Environment. https://doi.org/10.1038/s43017-024-00542-0. [Download paper]

[25] Roach, L. A., Mankoff, K., Romanou, A., Blanchard-Wrigglesworth, E., Haine, T., and Schmidt, G. A. (2023). Winds and meltwater together lead to Southern Ocean Surface cooling and sea ice expansion. Geophysical Research Letters, 50, e2023GL105948. https://doi.org/10.1029/2023GL105948

[24] Schmidt, G. A., Romanou, A., Roach, L. A., Mankoff, K., Li, Q., Rye, C. D., Kelley, M., Marshall, J. C. and Busecke, J. J. M. (2023). Anomalous meltwater from ice sheets and ice shelves is a historical forcing. Geophysical Research Letters, 50, e2023GL106530. https://doi.org/10.1029/2023GL106530

[23] Roach, L. A., Eisenman, I., Wagner, T. J. and Donohoe, A. (2023). Asymmetry in the seasonal cycle of zonal-mean surface air temperature. Geophysical Research Letters 50, e2023GL103403. https://doi.org/10.1029/2023GL103403

[22] Goosse, H., Allende Contador, S., Bitz, C. M., Blanchard-Wrigglesworth, E., Eayrs, C., Fichefet, T., Himmich, K., Huot, P.-V., Klein, F., Marchi, S., Massonnet, F., Mezzina, B., Pelletier, C., Roach, L. A., Vancoppenolle, M., and van Lipzig, N. P. M. (2023). Modulation of the seasonal cycle of the Antarctic sea ice extent by sea ice processes and feedbacks with the ocean and the atmosphere. The Cryosphere, 17, 407–425. https://doi.org/10.5194/tc-17-407-2023

[21] Roach L. A., Blanchard-Wrigglesworth, E., Ragen, S., Cheng, W., Armour, K. C., and Bitz, C.M. (2022). The impact of winds on AMOC in a fully-coupled climate model. Geophysical Research Letters 49, e2022GL101203. https://doi.org/10.1029/2022GL101203

[20] Cooper V. T., Roach L. A., Thomson J., Brenner S. D., Smith M. M., Meylan M. H., and Bitz C. M. (2022). Wind waves in sea ice of the western Arctic and a global coupled wave-ice model. Phil. Trans. R. Soc. A. 380:20210258. http://doi.org/10.1098/rsta.2021.0258. [Download paper]

[19] Roach, L. A., Eisenman, I., Wagner, T. J., Blanchard-Wrigglesworth, E., and Bitz, C. M. (2022). Asymmetry in the seasonal cycle of Antarctic sea ice due to insolation. Nature Geoscience. https://doi.org/10.1038/s41561-022-00913-6. [Download paper]. [Download Supplementary]

[18] Roach, L. A. and Blanchard-Wrigglesworth, E. (2022). Observed winds crucial for September Arctic sea ice loss. Geophysical Research Letters, 49, e2022GL097884. https://doi.org/10.1029/2022GL097884. [Download paper]

[17] Montiel, F., Kohout, A., and Roach, L. A. (2022). Physical drivers of wave attenuation in the marginal ice zone. Journal of Physical Oceanography, 52(5), 889-906. https://doi.org/10.1175/JPO-D-21-0240.1. [Download paper]

[16] Horvat, C. and Roach, L. A. (2022). WIFF1. 0: A hybrid machine-learning-based parameterization of Wave-Induced sea-ice Floe Fracture. Geoscientific Model Development 15(2), 803-814 https://doi.org/10.5194/gmd-15-803-2022

[15] Blanchard-Wrigglesworth, E., Donohoe, A., Roach, L. A., DuVivier, A., and Bitz, C. M. (2021). High-frequency sea ice variability in observations and models. Geophysical Research Letters, 48, e2020GL092356. https://doi.org/10.1029/2020GL092356

[14] Hosekova, L., Malila, M. P., Rogers, W. E., Roach, L. A., Eidam, E., Rainville, L., Kumar, N., and Thomson, J. (2020). Attenuation of ocean surface waves in pancake and frazil sea ice along the coast of the Chukchi Sea. Journal of Geophysical Research: Oceans, 125, e2020JC016746. https://doi.org/10.1029/2020JC016746

[13] Blanchard-Wrigglesworth, E., Roach, L. A., Donohoe, A., and Ding, Q. (2021). Impact of winds on Antarctic sea ice trends and variability. Journal of Climate, 1-47. https://doi.org/10.1175/JCLI-D-20-0386.1

[12] Kohout, A., Smith, M., Roach, L. A., Williams, G., Montiel, F., and Williams, M. (2020). Observations of exponential wave attenuation in Antarctic sea ice during the PIPERS campaign. Annals of Glaciology, 1-14. https://doi.org/10.1017/aog.2020.36

[11] Ackley, S. F., Stammerjohn, S., Maksym, T., Smith, M. M., Cassano, J., Guest, P., Tison, J.-L., Delille, B., Loose, B., Sedwick, P., DePace, L., Roach, L. A., and Parno, J. (2020). Sea ice production and air-ice-ocean-biogeochemistry interactions in the Ross Sea during the PIPERS 2017 autumn field campaign. Annals of Glaciology, 1-15. https://doi.org/10.1017/aog.2020.31

[10] Bracegirdle, T. J., Krinner, G., Tonelli, M., Haumann, F. M., Naughten, K. A., Rackow, T., Roach, L. A., and Wainer, I. (2020). Twenty first century changes in Antarctic and Southern Ocean surface climate in CMIP6. Atmospheric Science Letters, e984. https://doi.org/10.1002/asl.984

[9] Roach, L. A., Dörr J., Holmes, C. R., Massonnet, F., Blockley, E. W., Notz, D., Rackow, T., Raphael, M. N., O’Farrell, S. P., Bailey, D. A., and Bitz, C. M. (2020). Antarctic sea ice area in CMIP6. Geophysical Research Letters, 47, e2019GL086729. https://doi.org/10.1029/2019GL086729. [Download paper]. [Download Supplementary].

[8] Sea Ice Modelling Intercomparison Project Community [30 co-authors inc. Roach, L. A.] (2020). Arctic sea ice in CMIP6. Geophysical Research Letters, 47, e2019GL086749. https://doi.org/10.1029/2019GL086749

[7] Horvat, C., Flocco, D., Rees Jones, D. A., Roach, L. A., and Golden, K. M. (2020). The effect of melt pond geometry on the distribution of solar energy under first‐year sea ice. Geophysical Research Letters, 47. https://doi.org/10.1029/2019GL085956

[6] Roach, L. A., Bitz, C. M., Horvat, C., and Dean, S. M. (2019). Advances in modelling interactions between sea ice and ocean surface waves. Journal of Advances in Modeling Earth Systems, 11, 4167– 4181. https://doi.org/10.1029/2019MS001836

[5] Horvat, C., Roach, L. A., Tilling, R., Bitz, C. M., Fox-Kemper, B., Guider, C., Hill, K., Ridout, A., and Shepherd, A. (2019). Estimating the sea ice floe size distribution using satellite altimetry: theory, climatology, and model comparison. The Cryosphere, 13, 2869–2885. https://doi.org/10.5194/tc-13-2869-2019

[4] Roach, L. A., Horvat, C., Dean, S. M., and Bitz, C. M. (2018). An emergent sea ice floe size distribution in a global coupled ocean–sea ice model. Journal of Geophysical Research: Oceans, 123(6), 4322-4337. https://doi.org/10.1029/2017JC013692

[3] Roach, L. A., Smith, M. M., and Dean, S. M. (2018). Quantifying growth of pancake sea ice floes using images from drifting buoys. Journal of Geophysical Research: Oceans, 123(4), 2851-2866. https://doi.org/10.1002/2017JC013693

[2] Roach, L. A., Dean, S. M., and Renwick, J. A. (2018). Consistent biases in Antarctic sea ice concentration simulated by climate models. The Cryosphere, 12(1), 365-383. https://doi.org/10.5194/tc-12-365-2018

[1] Roach, L. A., Tett, S. F. B., Mineter, M. J., Yamazaki, K., and Rae, C. D. (2018). Automated parameter tuning applied to sea ice in a global climate model. Climate Dynamics, 50(1-2), 51-65. https://doi.org/10.1007/s00382-017-3581-5