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Temperature Evolution of the Indo-Pacific Warm Pool Over the Holocene and the Last Deglaciation

机译：全新世的印度温水游泳池的温度演变和最后的下游

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摘要

The Indo-Pacific Warm Pool (IPWP) contains the warmest surface ocean waters on our planet making it a major source of heat and moisture to the atmosphere. Changes in the extent and position of the IPWP likely impacted the tropical and global climate in the past and may also do in the future. With the aim to put recent ocean changes into a longer temporal context, we present new paleoceanographic sea surface temperature reconstructions from the heart of the Western Pacific Warm Pool, which is the warmest region within the IPWP, across the last 17,000 years. To provide an improved spatial and temporal regional context we use new and published sea surface temperature records from the IPWP and update previous compilation efforts (Linsley et al., 2010, https://doi.org/10.1038/ngeo1920). We similarly conclude that the IPWP was warmer in the early Holocene compared to the late Holocene. However, with the new data we are able to argue against a western displacement/expansion of the IPWP and suggest a warmer southern IPWP in the early Holocene. We explore the potential drivers of the Holocene IPWP cooling and propose a combination of processes including changes in the monsoonal winds associated with the position of the rain belt, the tropical Pacific mean climate, and upper water column mixing. The proposed climatic processes differentially impacted the IPWP subregions resulting in spatially diverse trends. Additionally, the late deglacial section of the records mostly show a gradual IPWP warming similar in structure to the atmospheric CO_2 and/or Antarctica rising temperatures.
机译：印度-太平洋暖池（IPWP）包含地球上最温暖的表层海水，使其成为大气热量和水分的主要来源。IPWP范围和位置的变化可能在过去和未来影响热带和全球气候。为了将最近的海洋变化置于一个更长的时间背景中，我们从西太平洋暖池的中心进行了新的古海洋表面温度重建，这是过去17000年IPWP中最温暖的区域。为了提供更好的时空区域背景，我们使用了IPWP中新发布的海面温度记录，并更新了之前的编译工作（Linsley等人，2010年，https://doi.org/10.1038/ngeo1920)我们同样得出结论，与全新世晚期相比，全新世早期的IPWP更温暖。然而，有了新的数据，我们能够反驳IPWP的西部位移/扩张，并提出在全新世早期IPWP南部变暖。我们探讨了全新世IPWP冷却的潜在驱动因素，并提出了一系列过程，包括与雨带位置、热带太平洋平均气候和上层水柱混合相关的季风变化。拟议的气候过程对IPWP次区域产生了不同的影响，导致了空间多样性趋势。此外，记录的冰消晚期部分大多显示IPWP逐渐变暖，其结构类似于大气CO_2和/或南极温度上升。

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  • 来源
    《Paleoceanography》 |2019年第7期|共17页
  • 作者

    Paola Moffa-Sanchez; Yair Rosenthal; Tali L. Babila; Mahyar Mohtadi; Xu Zhang;

  • 作者单位

    Department of Marine and Coastal Sciences Rutgers University New Brunswick NJ USA;

    Department of Marine and Coastal Sciences Rutgers University New Brunswick NJ USA;

    Ocean and Earth Science National Oceanography Centre University of Southampton Southampton UK;

    MARUM-Center for Marine Environmental Sciences University of Bremen Bremen Germany;

    Key Laboratory of Western China's Environmental Systems (Ministry of Education) College of Earth and Environmental Sciences Lanzhou University Lanzhou China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 海洋学;
  • 关键词

    Temperature Evolution; Indo-Pacific Warm; Pool Over;

    机译：温度进化;印度太平洋温暖;游泳池;

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