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再分析數(shù)據(jù)集模擬印尼貫穿流的驗證研究

單位：1. 國防科技大學氣象海洋學院湖南長沙 410073;
2. 中國氣象局高影響天氣重點開放實驗室湖南長沙 410073

關(guān)鍵詞：印尼貫穿流海峽通道系泊數(shù)據(jù) 再分析數(shù)據(jù) 數(shù)據(jù)驗證

分類號：P731.35

出版年·卷·期（頁碼）：2025·42·第四期（11-25）

摘要：

印尼貫穿流（ITF）連通著太平洋和印度洋，且具有顯著的時空變化特征，但現(xiàn)有再分析數(shù)據(jù)集對其描述的能力尚不清楚。利用布放在入流和出流的系泊潛標，對多套再分析數(shù)據(jù)模擬的ITF流場結(jié)構(gòu)、最大流速、最大流速深度等要素變化特征進行驗證。結(jié)果表明：CMEMS再分析數(shù)據(jù)表現(xiàn)較好，在望加錫海峽、帝汶海峽和翁拜海峽處與觀測數(shù)據(jù)的相關(guān)系數(shù)分別為0.70、0.50和0.42，能夠再現(xiàn)ITF對氣候事件的響應(yīng)；HYCOM再分析數(shù)據(jù)表現(xiàn)次之，其主要缺點是不能模擬出帝汶海峽和翁拜海峽300 m以下的流場結(jié)構(gòu)；OFES再分析數(shù)據(jù)對望加錫海峽和翁拜海峽流速的模擬均偏小。

The Indonesian Throughflow（ITF） connects the Pacific Ocean and the Indian Ocean, which has the flow field with significant spatiotemporal variation. However, the ability of existing reanalysis datasets to describe the ITF is unclear. The ITF flow field structure, maximum velocity and maximum velocity depth of the reanalysis data are verified by using the mooring submerged buoys placed in the inflow and outflow. The results show that the CMEMS reanalysis data has a good performance, and the correlation coefficients between it and the mooring data in Makassar Strait, Timor Strait and Ombai Strait are 0.70, 0.50 and 0.42, respectively. And it can reproduce the response of ITF to climate events. In contrast, the HYCOM reanalysis data cannot simulate the flow field structure below 300 m in Timor Strait and Ombai Strait. The OFES reanalysis data has relatively smaller flow velocity in Makassar Strait and Ombai Strait.

參考文獻：

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