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September 12, 2025Geophysical Research LettersOpen Access

Gradual Warming of Western Pacific Warm Pool Due To Weakening of Indonesian Throughflow During the Late Mid‐Pleistocene Transition

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Authors

QJQi JiaDNDirk NürnbergTAThomas J. Algeo

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Overview

This analysis reveals gradual warming and freshening in the Western Pacific Warm Pool, suggesting significant impacts from the Indonesian Throughflow.

Key Points

  • The Western Pacific Warm Pool experienced gradual warming and slight freshening during the late mid-Pleistocene transition.
  • Mg/Ca and δ18O records from the foraminifer Trilobatus sacculifer highlighted these changes between 0.9 and 0.6 million years ago.
  • Weakening of the Indonesian Throughflow led to increased oceanic heat accumulation and shifted regional salinity levels.
  • Findings indicate that these climatic changes possibly contributed to the expansion of the North American ice sheet.

Cite This Study

Jia et al. (2025) studied this question.

synapsesocial.com/papers/68d44a1d31b076d99fa52d57https://doi.org/10.1029/2025gl116662
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Upper ocean temperature change caused by the closing of the Indonesian Seaway from the late Miocene to early Pliocene2024
  2. 2Biomarker Constraints on Indo‐Pacific Warm Pool Temperature During the Late Pleistocene: The Role of Orbital Forcing2026
  3. 3Migrations of the Indo-Pacific Warm Pool through the past eight glacial cycles2024
  4. 4Changes in the Indonesian Throughflow Since the Late Miocene Based on Radiolarian Assemblages From ODP Site 710 in the Western Tropical Indian Ocean: Implications of the Indo‐Pacific Gateway (Indonesian Seaway)2026
  5. 5Late Miocene Warming in the Tropics Based on Planktonic Foraminiferal Assemblages2026