Satellite-detected sea surface chlorophyll-a penetrating fronts off the south coast of Java Island

IF 2.1 3区地球科学 Q2 OCEANOGRAPHY

Deep-Sea Research Part I-Oceanographic Research Papers Pub Date : 2025-09-18 DOI:10.1016/j.dsr.2025.104593

Tengfei Xu , Dingqi Wang , Qinsheng Wei , Shujiang Li , R.D. Susanto , Guanlin Wang , Fei Teng , T. Agustiadi , M. Trenggono , Priyadi Dwi Santoso , Zexun Wei

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Abstract

In this study, we report the phenomenon of sea surface chlorophyll-a (SSC) penetrating front south of Java Island based on satellite observations. The SSC penetrating front occurs frequently (∼17 times per month) during the upwelling season (June to November) and can also be observed (∼4 times per month) during the non-upwelling season (December to May). The offshore distance of the SSC penetrating front can reach up to 500 km and 350 km in the upwelling and non-upwelling seasons, respectively. Eddy-related advection along the eddy edges plays an important role in maintaining the SSC penetrating front by transporting nutrient-rich waters from the Java coast. The interannual variability of the SSC penetrating front is closely associated with the ENSO and IOD events, which tend to induce anomalous upwelling and enhanced mesoscale eddy activity, thereby leading to more frequent occurrences of the SSC penetrating fronts south of Java Island.

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爪哇岛南海岸外，卫星探测到的海面叶绿素-a穿透锋面

本文利用卫星观测资料报道了爪哇岛以南海面叶绿素-a （SSC）穿透锋现象。在上升流季节（6月至11月），SSC穿透锋频繁出现（每月~ 17次），在非上升流季节（12月至5月）也可以观察到（每月~ 4次）。在上升流季和非上升流季，南南流穿透锋的离岸距离分别可达500 km和350 km。沿涡缘的涡相关平流通过从爪哇海岸输送富营养水，在维持南中国海贯穿锋中起着重要作用。南纬c穿透锋的年际变化与ENSO和IOD事件密切相关，ENSO和IOD事件往往诱发异常上升流和中尺度涡活动增强，从而导致南纬c穿透锋在爪哇岛以南出现频率更高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Deep-Sea Research Part I-Oceanographic Research Papers 地学-海洋学

CiteScore

4.60

自引率

4.20%

发文量

144

审稿时长

18.3 weeks

期刊介绍： Deep-Sea Research Part I: Oceanographic Research Papers is devoted to the publication of the results of original scientific research, including theoretical work of evident oceanographic applicability; and the solution of instrumental or methodological problems with evidence of successful use. The journal is distinguished by its interdisciplinary nature and its breadth, covering the geological, physical, chemical and biological aspects of the ocean and its boundaries with the sea floor and the atmosphere. In addition to regular "Research Papers" and "Instruments and Methods" papers, briefer communications may be published as "Notes". Supplemental matter, such as extensive data tables or graphs and multimedia content, may be published as electronic appendices.