Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11765/16229
Winter Targeted Observing Periods during the Year of Polar Prediction in the Southern Hemisphere (YOPP-SH)
Title: Winter Targeted Observing Periods during the Year of Polar Prediction in the Southern Hemisphere (YOPP-SH)
Authors: Bromwich, David H.Gorodetskaya, IrinaCarpentier, ScottAlexander, Simon P.Bazile, EricHeinrich, Victoria J.Massonnet, FrançoisPowers, Jordan G.Carrasco, JorgeCayette, ArthurChoi, TaejinChyhareva, AnastasiiaColwell, SteveCordeira, Jason M.Cordero, Raul R.Doerenbecher, AlexisDurán-Alarcón, ClaudioFrench, W. John R.González Herrero, Sergi ORCID RESEARCHERID Autor AEMETGuyot, AdrienHaiden, ThomasHirasawa, NaohikoRodríguez Imazio, PaolaKawzenuk, BrianKrakovska, SvitlanaLazzara, Matthew A.Fontolan Litell, MarianaManning, Kevin W.Norris, KimberleyPark, Sang-JongRalph, F. MartinRowe, Penny M.Sun, QizhenVitale, VitoWille, Jonathan D.Zhang, ZhenhaiZou, Xun
Keywords: Antarctica; Southern Ocean; Numerical weather prediction; Numerical analysis; Cloud microphysics; Numerical modeling
Issue Date: 2024
Publisher: American Meteorological Society
Citation: Bulletin of the American Meteorological Society. 2024, 105(9), p. E1662–E1684
Publisher version: https://doi.org/10.1175/BAMS-D-22-0249.1
Abstract: The Year of Polar Prediction in the Southern Hemisphere (YOPP-SH) held seven targeted observing periods (TOPs) during the 2022 austral winter to enhance atmospheric predictability over the Southern Ocean and Antarctica. The TOPs of 5–10-day duration each featured the release of additional radiosonde balloons, more than doubling the routine sounding program at the 24 participating stations run by 14 nations, together with process-oriented observations at selected sites. These extra sounding data are evaluated for their impact on forecast skill via data denial experiments with the goal of refining the observing system to improve numerical weather prediction for winter conditions. Extensive observations focusing on clouds and precipitation primarily during atmospheric river (AR) events are being applied to refine model microphysical parameterizations for the ubiquitous mixed-phase clouds that frequently impact coastal Antarctica. Process studies are being facilitated by high-time-resolution series of observations and forecast model output via the YOPP Model Intercomparison and Improvement Project (YOPPsiteMIIP). Parallel investigations are broadening the scope and impact of the YOPP-SH winter TOPs. Studies of the Antarctic tourist industry’s use of weather services show the scope for much greater awareness of the availability of forecast products and the skill they exhibit. The Sea Ice Prediction Network South (SIPN South) analysis of predictions of the sea ice growth period reveals that the forecast skill is superior to the sea ice retreat phase.
URI: http://hdl.handle.net/20.500.11765/16229
ISSN: 0003-0007
1520-0477
Appears in Collections:Artículos científicos 2023-2026


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