Preliminary Analysis on the Global Features of the NCEP CFSv2 Seasonal Hindcasts
Joint Authors
Silva, Gyrlene A. M.
Ambrizzi, Tercio
Leiva, Érico
Dutra, Lívia M. M.
Porfirio da Rocha, Rosmeri
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-21, 21 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-01-19
Country of Publication
Egypt
No. of Pages
21
Main Subjects
Abstract EN
The representation of the CFSv2 ocean-atmosphere ensemble hindcasts is investigated during Dec-Jan-Feb (DJF) and Jun-Jul-Aug (JJA) from 1983 to 2010.
The skill anomaly correlations showed that in some continents the forecasts do not have dependency with changes in the initial conditions.
Also, in both seasons the model has a higher skill at the 0-month lead time with the largest spatial biases occurring over the North America, South America, and Oceania.
Over the continents the largest biases in the nonlinearity of El Niño minus La Niña events are found over the eastern South Africa, part of Oceania, and central-southeastern parts of South America.
During DJF the main biases are related to double-ITCZ, strengthening of SPCZ, and deepening of the Aleutian and Icelandic low pressures.
The simulation of a warmer SST on the eastern of most austral oceans, the strengthening (weakening) of the Subtropical (Polar) Jet over the Southern Hemisphere, and the weakening of the zonal circulation near the Antarctic continent are also found in both seasons.
Over the central-eastern Equatorial Pacific a cooler bias in SST is found during JJA.
These biases are interpreted by analyses of the simulated global mean-state and their impact on the main patterns of variability.
American Psychological Association (APA)
Silva, Gyrlene A. M.& Dutra, Lívia M. M.& Porfirio da Rocha, Rosmeri& Ambrizzi, Tercio& Leiva, Érico. 2014. Preliminary Analysis on the Global Features of the NCEP CFSv2 Seasonal Hindcasts. Advances in Meteorology،Vol. 2014, no. 2014, pp.1-21.
https://search.emarefa.net/detail/BIM-491236
Modern Language Association (MLA)
Silva, Gyrlene A. M.…[et al.]. Preliminary Analysis on the Global Features of the NCEP CFSv2 Seasonal Hindcasts. Advances in Meteorology No. 2014 (2014), pp.1-21.
https://search.emarefa.net/detail/BIM-491236
American Medical Association (AMA)
Silva, Gyrlene A. M.& Dutra, Lívia M. M.& Porfirio da Rocha, Rosmeri& Ambrizzi, Tercio& Leiva, Érico. Preliminary Analysis on the Global Features of the NCEP CFSv2 Seasonal Hindcasts. Advances in Meteorology. 2014. Vol. 2014, no. 2014, pp.1-21.
https://search.emarefa.net/detail/BIM-491236
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-491236