Secular temperature changes in Hawaii
Secular temperature changes in Hawaii
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DOI：
10.1029/2008gl034377
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发表时间：
2008-06-18
影响因子：
5.2
通讯作者：
Luke, Mark S. A.
中科院分区：
文献类型：
--
作者：
Giambelluca, Thomas W.;Diaz, Henry F.;Luke, Mark S. A.
虽然全球平均气温的上升趋势已得到深入研究，但一些区域气温趋势却鲜为人知。我们记录长期的温度变化在夏威夷群岛在过去的21站的指数的基础上，类似于85年。结果表明，在过去的30年中，地表温度上升相对较快，高海拔地区变暖更强。平均温度的大部分增加与最低温度比最高温度大得多的增加有关-净变暖约为日较差的3倍。在这里分析的大部分记录期间，夏威夷的表面温度随着太平洋年代际振荡（PDO）的变化而一致地变化。然而，近几十年来，长期变暖已开始占主导地位，因此，尽管最近与PDO相关的冷却，夏威夷的表面温度仍然很高。在高海拔地区，更大的变暖趋势可能会产生重大的生态影响。
While the upward trend in global mean temperature has been intensively studied, some regional temperature trends are less well known. We document secular temperature changes in the Hawaiian Islands for the past similar to 85 years based on an index of 21 stations. Results show a relatively rapid rise in surface temperature in the last similar to 30 years, with stronger warming at the higher elevations. The bulk of the increase in mean temperature is related to a much larger increase in minimum temperatures compared to the maximum-a net warming about 3 times as large resulting in a reduction of the diurnal range. For much of the period of record analyzed here, surface temperature in Hawaii has varied coherently with changes in the Pacific Decadal Oscillation (PDO). However, in recent decades, the secular warming has begun to predominate, such that despite the recent cooling associated with the PDO, surface temperatures in Hawaii have remained elevated. The greater warming trend at the higher elevations may have significant ecological impacts.