Role of Specific Humidity Anomalies in Caribbean SST Response to ENSO

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概要

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• Remote influences of El Nino-Southern Oscillation (ENSO) on tropical Atlantic sea surface temperature (SST) are examined using reanalysis and in-situ observational datasets. During both the warm and cold events of ENSO, latent heat flux anomalies are the major mechanism for SST anomalies over the Caribbean Sea. Results from a linear decomposition of the latent heat flux anomalies indicate that the anomalous air-sea difference in specific humidity (Δq´) is the dominant term in January, one month after the ENSO's mature phase. Since anomalies of SST and saturation specific humidity at the sea surface are still small in January, Δq´is due mostly to changes in specific humidity in the lower atmosphere. Changes in surface air humidity and temperature, and their relationship to temperature variability in the upper troposphere during ENSO warm events are discussed.

• 社団法人日本気象学会の論文
• 2005-12-26

著者

• TANIMOTO Youichi

  Faculty of Environmental Earth Science and Graduate School of Environmental Science, Hokkaido Univer

• Tanimoto Youichi

  Faculty Of Environmental Earth Science And Graduate School Of Environmental Science Hokkaido Univers

• Tanimoto Youichi

  Fac. Of Environmental Earth Sci. And Graduate School Of Environmental Sci. Hokkaido Univ.

• CHIKAMOTO Yoshimitsu

  Graduate School of Environmental Earth Science, Hokkaido University

• Chikamoto Yoshimitsu

  Graduate School Of Environmental Earth Science Hokkaido University

関連論文

• A Peculiar Feature of the Seasonal Migration of the South American Rain Band
• An Evaluation of Reproducibility of the Pacific Decadal Oscillation in the CMIP3 Simulations
• Role of Specific Humidity Anomalies in Caribbean SST Response to ENSO
• Role of SST over the Indian ocean in influencing the intraseasonal variability of the Indian summer monsoon

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