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Winter Targeted Observing Periods during the Year of Polar Prediction in the Southern Hemisphere (YOPP-SH)

Bromwich, David H.
[1]; 
Gorodetskaya, Irina
[2]; 
Carpentier, Scott
[3]; 
Alexander, Simon
[4]; 
Bazile, Eric
[5]; 
Heinrich, Victoria J.
[6]; 
Massonnet, Francois
[7]; 
Powers, Jordan G.
[8]; 
[9]; 
Cayette, Arthur
[10]; 
Choi, Taejin
[11]; 
Chyhareva, Anastasiia
[12]; 
Colwell, Steven R.
[13]; 
Cordeira, Jason M.
[14]; 
Cordero, Raul R.
[15]; 
Doerenbecher, Alexis
[5]; 
Duran-Alarcon, Claudio
[2]; 
French, W. John R.
[4]; 
Gonzalez-Herrero, Sergi
[16]; 
Guyot, Adrien
[3]; 
Haiden, Thomas
[17]; 
Hirasawa, Naohiko
[18]; 
Imazio, Paola Rodriguez
[19]; 
Kawzenuk, Brian
[14]; 
Krakovska, Svitlana
[12]; 
Lazzara, Matthew A.
[20]; 
Litell, Mariana Fontolan
[1]; 
Manning, Kevin W.
[8]; 
Norris, Kimberley
[6]; 
Park, Sang-Jong
[11]; 
Ralph, F. Martin
[14]; 
Rowe, Penny M.
[21]; 
Sun, Qizhen
[22]; 
Vitale, Vito
[23]; 
Wille, Jonathan D.
[24]; 
Zhang, Zhenhai
[14]; 
Zou, Xun
[14]
  • 1
    University System of Ohio
  • 2
    Universidade do Porto
  • 3
    Bureau of Meteorology - Australia
  • 4
    Australian Antarctic Division
  • 5
    Meteo France
  • 6
    University of Tasmania
  • 7
    Universite Catholique Louvain
  • 8
    NSF Natl Ctr Atmospher Res
  • 9
    Centro de Investigación Gaia Antártica  
  • 10
    Naval Informat Warfare Ctr Atlantic
  • 11
    Korea Polar Research Institute (KOPRI)
  • 12
    Ministry of Education & Science of Ukraine
  • 13
    UK Research & Innovation (UKRI)
  • 14
    University of San Diego
  • 15
    Universidad de Santiago de Chile
  • 16
    Agencia Estatal de Meteorologia (AEMET)
  • 17
    European Centre for Medium-Range Weather Forecasts (ECMWF)
  • 18
    Research Organization of Information & Systems (ROIS)
  • 19
    CONICET Natl Weather Serv
  • 20
    University of Wisconsin System
  • 21
    NorthWest Research Associates
  • 22
    Natl Ctr Marine Environm Forecasting
  • 23
    Consiglio Nazionale delle Ricerche (CNR)
  • 24
    Swiss Federal Institutes of Technology Domain
DOI
Date Issued
2024-9
Type
Artículo
Journal
Bulletin of the American Meteorological Society
ISSN
0003-0007
1520-0477
Volume
105
Links
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.
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