Climatic controls on hurricane patterns: a 1200-y near-annual record from Lighthouse Reef, Belize.
Climatic controls on hurricane patterns: a 1200-y near-annual record from Lighthouse Reef, Belize.
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DOI：
10.1038/srep03876
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发表时间：
2014-01-27
影响因子：
4.6
通讯作者：
Droxler AW
中科院分区：
文献类型：
--
作者：
Denommee KC;Bentley SJ;Droxler AW
热带气旋 (TC) 具有强大的破坏力，了解热带气旋模式的气候控制非常重要。在季节到几十年的时间尺度上，热带气旋轨迹、频率、强度和流域尺度气候变化之间的关系都有很好的仪器记录记录。几个世纪到几千年来，气候变化对热带气旋机制的影响仍然受到很少的限制。为了更好地理解这些关系，需要来自多个地点的跨越数千年的高时间分辨率的热带气旋袭击记录，但这样的记录很少见。在这里，我们报告了来自伯利兹灯塔礁蓝洞的古TC撞击的非常详细的沉积代理记录。我们的研究结果为其他高分辨率记录提供了重要补充，这些记录共同表明，活跃和不活跃的热带气旋模式之间的转变是与半球尺度海洋和大气环流模式（例如MDR海温和NAO模态）的变化同时发生的，而不是像之前所认为的那样与当地气候现象的变化同时发生。
Tropical cyclones (TCs) are powerful agents of destruction, and understanding climatic controls on TC patterns is of great importance. Over timescales of seasons to several decades, relationships among TC track, frequency, intensity and basin-scale climate changes are well documented by instrumental records. Over centuries to millennia, climate-shift influence on TC regimes remains poorly constrained. To better understand these relationships, records from multiple locations of TC strikes spanning millennia with high temporal resolution are required, but such records are rare. Here we report on a highly detailed sedimentary proxy record of paleo-TC strikes from the Blue Hole of Lighthouse Reef, Belize. Our findings provide an important addition to other high-resolution records, which collectively demonstrate that shifts between active and inactive TC regimes have occurred contemporaneously with shifts hemispheric-scale oceanic and atmospheric circulation patterns such as MDR SSTs and NAO mode, rather than with changes in local climate phenomena as has previously been suggested.
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