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The Year of Polar Prediction in the Southern Hemisphere (YOPP-SH)

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Title
The Year of Polar Prediction in the Southern Hemisphere (YOPP-SH)
Other Titles
남반구 극지예측의 해 (YOPP-SH)
Authors
Bromwich, David H.
Werner, Kirstin
Casati, Barbara
Powers, Jordan G.
Gorodetskaya, Irina, V.
Massonnet, Francois
Vitale, Vito
Heinrich, Victoria J.
Liggett, Daniela
Arndt, Stefanie
Barja, Boris
Bazile, Eric
Carpentier, Scott
Carrasco, Jorge F.
Choi, Taejin
Choi, Yonghan
Colwell, Steven R.
Cordero, Raul R.
Gervasi, Massimo
Haiden, Thomas
Hirasawa, Naohiko
Inoue, Jun
Jung, Thomas
Kalesse, Heike
Kim, Seong-Joong
Lazzara, Matthew A.
Manning, Kevin W.
Norris, Kimberley
Park, Sang-Jong
Reid, Phillip
Rigor, Ignatius
Rowe, Penny M.
Schmithusen, Holger
Seifert, Patric
Sun, Qizhen
Uttal, Taneil
Zannoni, Mario
Zou, Xun
Subject
Meteorology & Atmospheric Sciences
Issue Date
2020-10
Citation
Bromwich, David H., et al. 2020. "The Year of Polar Prediction in the Southern Hemisphere (YOPP-SH)". BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, 101(10): 1653-1676.
Abstract
The Year of Polar Prediction in the Southern Hemisphere (YOPP-SH) had a special observing period (SOP) that ran from 16 November 2018 to 15 February 2019, a period chosen to span the austral warm season months of greatest operational activity in the Antarctic. Some 2,200 additional radiosondes were launched during the 3-month SOP, roughly doubling the routine program, and the network of drifting buoys in the Southern Ocean was enhanced. An evaluation of global model forecasts during the SOP and using its data has confirmed that extratropical Southern Hemisphere forecast skill lags behind that in the Northern Hemisphere with the contrast being greatest between the southern and northern polar regions. Reflecting the application of the SOP data, early results from observing system experiments show that the additional radiosondes yield the greatest forecast improvement for deep cyclones near the Antarctic coast. The SOP data have been applied to provide insights on an atmospheric river event during the YOPP-SH SOP that presented a challenging forecast and that impacted southern South America and the Antarctic Peninsula. YOPP-SH data have also been applied in determinations that seasonal predictions by coupled atmosphere-ocean-sea ice models struggle to capture the spatial and temporal characteristics of the Antarctic sea ice minimum. Education, outreach, and communication activities have supported the YOPP-SH SOP efforts. Based on the success of this Antarctic summer YOPP-SH SOP, a winter YOPP-SH SOP is being organized to support explorations of Antarctic atmospheric predictability in the austral cold season when the southern sea ice cover is rapidly expanding.
URI
https://repository.kopri.re.kr/handle/201206/12054
DOI
https://doi.org/10.1175/BAMS-D-19-0255.1
Appears in Collections  
2019-2019, Investigation for the cause of east-west different climate responses in Antarctica (19-19) / Kim, Seong-Joong (PE19010)
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