Year of Polar Prediction (YOPP) - Southern Hemisphere

Last modified on 2026-05-12

YOPP-SH video

YOPP-SH Winter Special Observing Period: mid April - August 31, 2022, completed

  • Targeted Observing Periods (TOP): images, photos and videos on
    • Antarctic-wide: May 9 - May 16
    • Antarctic-wide: June 2 - June 7
    • East Antarctica: July 1 - July 9
    • Antarctic-wide: July 14 - July 19
    • Antarctic Peninsula: July 23 - July 30
    • East Antartica: July 29 - August 3
    • Antarctic-wide: August 20 - August 30
  • Bromwich, D. H, I. V. Gorodetskaya, S. Carpentier, S. Alexander, E. Bazile, V. J. Heinrich, F. Massonnet, J. G. Powers, J. F. Carrasco, A. Cayette, T. Choi, A. Chyhareva, S. R. Colwell, J. M. Cordeira, R. R. Cordero, A. Doerenbecher, C. Durán-Alarcón, W. J. R. French, S. Gonzalez-Herrero, A. Guyot, T. Haiden, N. Hirasawa, P. R. Imazio, B. Kawzenuk, S. Krakovska, M. A. Lazzara, M. Fontolan Litell, K. W. Manning, K. Norris, S.-J. Park, F. M. Ralph, P. M. Rowe, Q. Sun, V. Vitale, J. D. Wille, Z. Zhang, and X. Zou, 2024: Winter Targeted Observing Periods during the Year of Polar Prediction in the Southern Hemisphere (YOPP-SH). Bull. Amer. Meteor. Soc., 105, E1662–E1684, https://doi.org/10.1175/BAMS-D-22-0249.1. Full Text (PDF)
  • Enhanced Weather Forecasting Initiatives Improve Predictive Capabilities Over and Around Antarctica - January 6, 2025. BPCRC News (link)
  • PCAPS discussion: Reflections after the 8th Year of Polar Prediction - Southern Hemisphere (YOPP-SH) Meeting and the path forward for increased Southern Hemisphere collaboration - June 13, 2024. (link)

  • 8th YOPP-SH Meeting was held hybrid in conjunction with the 19th Workshop on Antarctic Meteorology and Climate through the Byrd Polar & Climate Research Center, Columbus, Ohio: June 10-12 (WAMC) and 13-14 (YOPP-SH), 2024. See meeting website http://polarmet.osu.edu/WAMC_2024 for information and presentations.
  • The Year of Polar Prediction in the Southern Hemisphere (YOPP-SH): Achievements and Future Plans - D. Bromwich. YOPP Final Summit, August 31, 2022. (YouTube link)
  • The 7th YOPP-SH Meeting, Madison, WI, August 6, 2022 (link)

YOPP-SH Summer Special Observing Period (SOP): Nov. 16, 2018 - Feb. 15, 2019, completed

  • Bromwich, D. H., K. Werner, B. Casati, J. G. Powers, I. V. Gorodetskaya, F. Massonnet, V. Vitale, V. J. Heinrich, D. Liggett, S. Arndt, B. Barja, E. Bazile, S. Carpentier, J. F. Carrasco, T. Choi, Y. Choi, S. R. Colwell, R. R. Cordero, M. Gervasi, T. Haiden, N. Hirasawa, J. Inoue, T. Jung, H. Kalesse, S.-J. Kim, M. A. Lazzara, K. W. Manning, K. Norris, S.-J. Park, P. Reid, I. Rigor, P. M. Rowe, H. Schmithüsen, P. Seifert, Q. Sun, T. Uttal, M. Zannoni, and X. Zou, 2021: Year of Polar Prediction: A Focus on Antarctica. Bull. Amer. Meteor. Soc., 102, 515-522, Full Text (PDF)

  • Bromwich, D. H., K. Werner, B. Casati, J. G. Powers, I. V. Gorodetskaya, F. Massonnet, V. Vitale, V. J. Heinrich, D. Liggett, S. Arndt, B. Barja, E. Bazile, S. Carpentier, J. F. Carrasco, T. Choi, Y. Choi, S. R. Colwell, R. R. Cordero, M. Gervasi, T. Haiden, N. Hirasawa, J. Inoue, T. Jung, H. Kalesse, S.-J. Kim, M. A. Lazzara, K. W. Manning, K. Norris, S.-J. Park, P. Reid, I. Rigor, P. M. Rowe, H. Schmithüsen, P. Seifert, Q. Sun, T. Uttal, M. Zannoni and X. Zou, 2020: The Year of Polar Prediction in the Southern Hemisphere (YOPP-SH). Bull. Amer. Meteor. Soc., 101, E1653-E1676, https://doi.org/10.1175/BAMS-D-19-0255.1. Full Text (PDF)

YOPP Project Description

The Polar Prediction Project (PPP) YOPP MISSION:

Enable a significant improvement in environmental prediction capabilities for the polar regions and beyond, by coordinating a period of intensive observing, modelling, verification, user-engagement and education activities.

The Year of Polar Prediction (YOPP) is one of the key elements of the Polar Prediction Project. YOPP is scheduled to take place from mid-2017 to mid-2019.

YOPP will

  • cover an extended period of coordinated intensive observational and modelling activities in order to improve polar prediction capabilities on a wide range of time scales in both polar regions.

  • strongly engage in forecast-stakeholder interaction, verification and a strong educational component.

  • foster relationships with partners, provide common focussed objectives, and be held over a bit more than a one-year period in association with a field campaign providing additional observations.

  • coincide with, support, and draw on other related planned activities for polar regions.

  • be implemented in three different stages: a preparation phase (2013-2017), YOPP itself (mid-2017 - mid-2019), and a consolidation phase (2019-2022).


    • If you wish to subscribe to polarprediction@climate-cryosphere.org, the joint mailing list for polar weather and climate prediction and predictability by CliC and PPP (more than 400 subscribers), please send an e-mail to office@polarprediction.net

    For Southern Hemisphere field campaigns and other activties (39 total) endorsed through the YOPP (YOPP Explorer - Antarctic)

    YOPP-SH Publications:

    • Hines, K. M., P. M. Rowe, I. Gorodetskaya, A. Chyhareva, D. H. Bromwich, M. Fontolan-Litell, S.-H. Wang, S. Krakovska, C. Duran-Alarcon, and R. A. Stillwell, 2026: Skillful Polar WRF cloud modeling of a warm winter Atmospheric River at the Antarctic Peninsula. J. Geophys. Res. Atmos., 131, e2024JD043239. https://doi.org/10.1029/2024JD043239 Full Text (PDF)

    • Kristiansen, J., D. Liggett, J. Wilson, N. Caltabiano, D. Abdel-Fattah, C. Eayrs, P. Browne, B. Casati, V. J. Heinrich, P. Rodriguez Imazio, J. Jeuring, M. Lamers, G. Ljubicic, H. Nielsen, A. Orr, G. Svensson , P. Deb, L. Magnusson, and D. Bromwich, 2026: Enhancing Environmental Forecasting in the Polar Regions: A Look Into the New WMO WWRP Polar Coupled Analysis and Prediction for Services (PCAPS) Project. Bull. Amer. Meteor. Soc., https://doi.org/10.1175/BAMS-D-24-0287.1 Manuscript (PDF)

    • Zou, X., F. M. Ralph, D. H. Bromwich, S. T. Gille, I. V. Gorodetskaya, M. R. Mazloff, D. Lubin, I. Cerovečki, R. Sun, J. D. Wille, and Z. Zhang, 2026: Antarctica’s uncertain future: global sea-level rise from oceanic and atmospheric forcing, with a focus on atmospheric rivers. Front. Earth Sci., 14, 1761959, doi: 10.3389/feart.2026.1761959 Full Text (PDF)

    • Zou, X., P. M. Rowe, I. V. Gorodetskaya, A. Orr, D. H. Bromwich, D. Lubin, M. A. Lazzara, Z. Zhang, K. Brian, J. D. Wille, J. M. Cordeira, N. Hansen, J. Li, Pu Gan, and F. M. Ralph, 2026: Fohn-induced melting over Larsen C modulated by atmospheric river shape, direction and landfall location. Nat. Commun., https://doi.org/10.1038/s41467-026-71359-2. The full text is available at www.nature.com

    • Bromwich, D. H., S.-H. Wang, X. Zou, and A. Ensign, 2025: An Updated Reconstruction of Antarctic Near-Surface Air Temperatures at Monthly Intervals Since 1958. Earth System Science Data (ESSD), 17, 2953–2962, https://doi.org/10.5194/essd-17-2953-2025 Full Text (PDF)

    • Fontolan Litell, M., T. P. Norton, B. C. Rakoczy, E. Koudelka, S. D. Shuvo, D. H. Bromwich, M. A. Lazzara, and D. E. Mikolajczyk, 2025: The 19th workshop on Antarctic Meteorology and Climate and 8th Year of Polar Prediction in the Southern Hemisphere Meeting. Adv. Atmos. Sci., https://doi.org/10.1007/s00376-025-5348-y Full Text (PDF). The version of record of this article, first published in Advances in Atmospheric Sciences, is available online at Publisher’s website: https://doi.org/10.1007/s00376-025-5348-y

    • Jung, T., J. Wilson, E. Bazile, D. Bromwich, B. Casati, J. Day, E. De Coning, C. Eayrs, O. Godoy, H. Goessling, R. Grumbine, V. J. Heinrich, J. Inoue, S. J. S. Khalsa, J. Kristiansen, M. Lamers, D. Liggett, S. M. Olsen, D. Perovich, I. A. Renfrew, I. Sandu, M. D. Shupe, V. Smolyanitsky, G. Svensson, Q. Sun, T. Uttal, K. Werner, and Q. Yang, 2025: The Year of Polar Prediction (YOPP): Achievements, impacts and lessons learnt. Bull. Amer. Meteor. Soc., 106, E2519–E2543, https://doi.org/10.1175/BAMS-D-23-0226.1 Full Text (PDF)

    • Rowe, P. M., X. Zou, I. Gorodetskaya, R. A. Stillwell, R. R. Cordero, D. H. Bromwich, Z. Zhang, F. M. Ralph, and S. Neshyba, 2025: Comparison of cloud and radiation measurements to models over the Southern Ocean at Escudero Station, King George Island. J. Geophys. Res. Atmos., 130, e2025JD043563, https://doi.org/10.1029/2025JD043563 Full Text (PDF)

    • Rowe, P. M., X. Zou, I. Gorodetskaya, R. A. Stillwell, R. R. Cordero, E. Sepulveda, D. H. Bromwich, Z. Zhang , F. M. Ralph, and S. Neshyba, 2025: Observations of clouds and radiation over King George Island and implications for the Southern Ocean and Antarctica. J. Geophys. Res. Atmos., 130, e2024JD042787. https://doi.org/10.1029/2024JD042787 Full Text (PDF)

    • Bromwich, D. H, I. V. Gorodetskaya, S. Carpentier, S. Alexander, E. Bazile, V. J. Heinrich, F. Massonnet, J. G. Powers, J. F. Carrasco, A. Cayette, T. Choi, A. Chyhareva, S. R. Colwell, J. M. Cordeira, R. R. Cordero, A. Doerenbecher, C. Durán-Alarcón, W. J. R. French, S. Gonzalez-Herrero, A. Guyot, T. Haiden, N. Hirasawa, P. R. Imazio, B. Kawzenuk, S. Krakovska, M. A. Lazzara, M. Fontolan Litell, K. W. Manning, K. Norris, S.-J. Park, F. M. Ralph, P. M. Rowe, Q. Sun, V. Vitale, J. D. Wille, Z. Zhang, and X. Zou, 2024: Winter Targeted Observing Periods during the Year of Polar Prediction in the Southern Hemisphere (YOPP-SH). Bull. Amer. Meteor. Soc., 105, E1662–E1684, https://doi.org/10.1175/BAMS-D-22-0249.1. Full Text (PDF)
    • Tomanek, A. J., E. J. Koudelka, M. Fontolan Litell, T. P. Norton, M. J. Dice, I. I. Onsi, and M. A. Lazzara, 2024: The 18th Workshop on Antarctic Meteorology and Climate. Adv. Atmos. Sci., 41(12), 2495−2504, https://doi.org/10.1007/s00376-024-3144-8. Full Text (PDF)

    • Tomanek, A. J., M. A. Lazzara, D. E. Mikolajczyk, T. P. Norton, I. I. Onsi. D. H. Bromwich, and M. Fontolan Litell, 2023: The 17th Workshop on Antarctic Meteorology and Climate and 7th Year of Polar Prediction in the Southern Hemisphere Meeting. Adv. Atmos. Sci., 40(9), 1722-1729, https://doi.org/10.1007/s00376-023-3049-y. Full Text (PDF)

    • Bromwich, D. H., K. Werner, B. Casati, J. G. Powers, I. V. Gorodetskaya, F. Massonnet, V. Vitale, V. J. Heinrich, D. Liggett, S. Arndt, B. Barja, E. Bazile, S. Carpentier, J. F. Carrasco, T. Choi, Y. Choi, S. R. Colwell, R. R. Cordero, M. Gervasi, T. Haiden, N. Hirasawa, J. Inoue, T. Jung, H. Kalesse, S.-J. Kim, M. A. Lazzara, K. W. Manning, K. Norris, S.-J. Park, P. Reid, I. Rigor, P. M. Rowe, H. Schmithüsen, P. Seifert, Q. Sun, T. Uttal, M. Zannoni, and X. Zou, 2021: Year of Polar Prediction: A Focus on Antarctica. Bull. Amer. Meteor. Soc., 102, 515-522, Full Text (PDF)
    • Bromwich, D. H., K. Werner, B. Casati, J. G. Powers, I. V. Gorodetskaya, F. Massonnet, V. Vitale, V. J. Heinrich, D. Liggett, S. Arndt, B. Barja, E. Bazile, S. Carpentier, J. F. Carrasco, T. Choi, Y. Choi, S. R. Colwell, R. R. Cordero, M. Gervasi, T. Haiden, N. Hirasawa, J. Inoue, T. Jung, H. Kalesse, S.-J. Kim, M. A. Lazzara, K. W. Manning, K. Norris, S.-J. Park, P. Reid, I. Rigor, P. M. Rowe, H. Schmithüsen, P. Seifert, Q. Sun, T. Uttal, M. Zannoni and X. Zou, 2020: The Year of Polar Prediction in the Southern Hemisphere (YOPP-SH). Bull. Amer. Meteor. Soc., 101, E1653-E1676, https://doi.org/10.1175/BAMS-D-19-0255.1. Full Text (PDF)
    • YOPP-SH Planning Meeting Report 2, Boulder, CO (June 28-29, 2017)
    • WWRP Polar Prediction Project, 2016: Implementation Plan for the Year of Polar Prediction (YOPP) Version 2.0. Full Tex (pdf)
    • YOPP-SH Planning Meeting Report, Columbus, OH (June 6, 2016)
    • Bradley, A., F. Massonnet, and J. Baeseman, 2015: Climate and Cryosphere Contributions for the Year of Polar Prediction (YOPP). Full Text (pdf)
    • Year of Polar Prediction (YOPP) Summit Meeting Report, 2015. WMO Headquarters, Geneva, Switzerland, 13-15 July, 2015. Final YOPP Summit Report (pdf)
    • Newman, L., L. Talley, M. Mazloff, B. Galton-Fenzi, S. Ackley, P. Heimbach, F. Massonnet, J. Shi, and M. Sparrow, 2015: Southern Ocean community comment on the Year of Polar Prediction Implementation Plan. SOOS Report Series #2. Full Text (pdf)
    • WWRP Polar Prediction Project, 2014: Implementation Plan for the Year of Polar Prediction (YOPP). Full Tex (pdf)

    Links