- 期刊
熱帶西太平洋海－氣通量和一維海洋混合層之模擬
Air-Sea Eddy Fluxes and the Mixed Layer of the Western Equatorial Pacific: Observations and One-Dimensional Model Simulation
摘要
本文利用TOGA-COARE的觀測資料，探討熱帶西太平洋海－氣渦流通量的變化，以及對海洋上層混合層的影響。同時，使用一維海洋混合層模式，研究海洋混合層對海－氣渦流通量的反應，並與觀測結果比較。資料分析顯示在不同的大氣條件下，海面各種能量通量有很大的不同。對流系統活躍時，太陽短波輻射明顯減少，同時因為對流下沖流的效應，使海－氣溫差和風應力變大，導致可感熱通量、潛熱通量增加。海洋混合層的發展明顯受到海－氣渦流動量通量的影響，其日夜變化則受控於海面淨熱通量的變化。大量降水時，在表層易形成低鹽度層。模式成功地模擬海面溫度和海洋混合層的日夜變化，以及大量降水所形成的低鹽度層。同時，模擬結果顯示降水所造成海面低鹽度層，會增加穩定度，阻礙海洋混合層的發展。
並列摘要
The Observational data of the R/V Hakuho-maru during TOGA-COARE IOP was used to investigate the variability of air-sea eddy fluxes and the oceanic mixed layer (OML). The results from the one-dimensional OML model were compared with the observations in this study.When the convection occur, the incoming shortwave radiation decrease. As the air-sea temperature difference and the wind stress increase, the sensible heat flux and latent heat flux increase. The momentum flux influence the evolution of OML. The diurnal variability of sea surface net heat flux causes diurnal variability of OML. Both in the observation and the model result show that a barrier layer forms due to heavy rain.The barrier layer does increase the stability of the OML and slow down the growth of OML. The predicted SST, the diurnal variation of the OML and the barrier layer due to large amount of precipitation were simulated reasonably in this model.
延伸閱讀
- 王溫和、林松錦（1997）。熱帶海洋渦流熱通量與東亞大氣環流之相關的初步探討。大氣科學，25(2)，173-194。https://www.airitilibrary.com/Article/Detail?DocID=02540002-199706-201404140005-201404140005-173-194
- 賈新興、吳清吉（2006）。熱帶西太平洋海－氣通量之研究。大氣科學，34(2)，127-141。https://www.airitilibrary.com/Article/Detail?DocID=02540002-200606-34-2-127-141-a
- Chen, M. T., Beaufort, L., & Cruise, T. S. S. P. O. T. I. I. (1998). 探索東亞季風、黑潮與西太平洋暖池系統之第四紀變化：IMAGES第三航次之高解析度古海洋學研究. Terrestrial, Atmospheric and Oceanic Sciences, 9(1), 129-142. https://www.airitilibrary.com/Article/Detail?DocID=10170839-199803-9-1-129-142-a
- Lin, Y. C. (2020). 在海氣耦合模式下探討熱帶太平洋氣候對中高緯度強迫之快慢反應 [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU202000563
- Chiang, T. L. (2010). Simulations and interpretations on mesoscale eddy, Warm Current, and typhoon-induced temperature drop in the South China Sea [doctoral dissertation, National Taiwan Normal University]. Airiti Library. https://www.airitilibrary.com/Article/Detail?DocID=U0021-1610201315194140