首页> 外文期刊>Journal of Climate >Icelandic Coastal Sea Surface Temperature Records Constructed: Putting the Pulse on Air-Sea-Climate Interactions in the Northern North Atlantic. Part I: Comparison with HadlSSTl Open-Ocean Surface Temperatures and Preliminary Analysis of Long-Term Pa
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Icelandic Coastal Sea Surface Temperature Records Constructed: Putting the Pulse on Air-Sea-Climate Interactions in the Northern North Atlantic. Part I: Comparison with HadlSSTl Open-Ocean Surface Temperatures and Preliminary Analysis of Long-Term Pa

机译:建立了冰岛沿海海表温度记录:将北大西洋北部的海-气-气候相互作用推向高潮。第一部分:与HadlSSTl海洋表面温度的比较以及长期Pa的初步分析

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A new comprehensive record of long-term Icelandic sea surface temperature measurements, which have been updated and filled in with reference to air temperature records, is presented. The new SST series reveal important features of the variability of climate in Iceland and the northern North Atlantic. This study documents site histories and possible resulting inconsistencies and biases, for example, changes in observing sites and instruments. A new 119-yr continuous time series for north Iceland SST is presented, which should prove particularly useful for investigating air—sea ice interactions around northern Iceland. As this is the only part of the country to be regularly engulfed by winter and/or spring sea ice, it is therefore highly sensitive toclimatic change. The coastal series correlate well overall with independent Hadley Centre Sea Ice and SST dataset version 1 (HadlSSTl) series from the adjacent open ocean (mean r = 0.59), although correlations are generally higher in summer than winterand for south and east Iceland compared with the west and north. The seasonal temperature range is generally twice as large at the coastal sites because of differential effects of radiation, melting, mixing, and advection of warmer or colder air or watermasses, as well as spatial resolution differences and smoothing in HadlSSTl. The long-term climatological averages and graphs for the 10 SST stations and/or their composites reveal decadal variations and trends that are generally similar to Icelandic air temperature records: a cold late-nineteenth-century, rapid warming around the 1920s, an overall warm peak circa 1940, cooling until an "icy" period circa 1970, followed by warming. Regional differences between sites include relatively greater (lesser)long-term variations for the eastern and southern (western and northern) Icelandic coasts, suggesting greater variability and influence of ocean current advection in the southeast. Moreover, Vestmannaeyjar SST data reveal that the late-nineteenth-centurycold period in the ocean was not confined to the cold currents off north and east Iceland but also affected the south coast markedly. The Stykkisholmur, Iceland, SST record is relatively noisy and shows very little decadal variation, which may largely be due to fjord ice in cold winters suppressing low temperatures. It is anticipated that researchers may find these Icelandic SST series of practical use as a historic measure of air-sea-climate interactions around Iceland.
机译:提出了一份新的长期冰岛海表温度测量的综合记录,该记录已参照空气温度记录进行了更新和填写。新的SST系列揭示了冰岛和北大西洋北部气候变化的重要特征。这项研究记录了场地的历史以及可能导致的不一致和偏差,例如,观测场地和仪器的变化。提出了一个新的119年冰岛北部SST连续时间序列,这对于研究冰岛北部周围的海冰相互作用特别有用。由于这是该国冬季和/或春季海冰经常吞没的唯一地区,因此对气候变化高度敏感。尽管与夏季相比,夏季比冬季和南部和东部冰岛的相关性通常更高,但沿海系列与独立的Hadley中心海冰和邻近海域的SST数据集版本1(HadlSSTl)系列总体上具有良好的相关性(平均值r = 0.59)。西部和北部。由于辐射,融化,混合以及对更热或更冷的空气或水团的平流作用,以及HadlSST1中的空间分辨率差异和平滑作用,季节性温度范围通常在沿海地区大两倍。 10个SST站和/或其组合的长期气候平均值和图表显示出年代际变化和趋势,这些变化和趋势通常类似于冰岛的气温记录:十九世纪末期的寒冷,1920年代前后的快速变暖,整体变暖大约在1940年达到顶峰,冷却至1970年左右为“冰冷”时期,然后变暖。站点之间的区域差异包括东部和南部(西部和北部)冰岛海岸的相对较大(较小)的长期变化,这表明东南部海流平流具有较大的可变性和影响力。此外,Vestmannaeyjar SST数据显示,海洋的19世纪末期并不局限于冰岛北部和东部的冷流,而且还明显影响了南海岸。冰岛的Stykkisholmur SST记录相对嘈杂,几乎没有年代际变化,这可能主要是由于寒冷冬季的峡湾冰抑制了低温。可以预料,研究人员可能会发现这些冰岛SST系列的实际用途,可以作为冰岛周围海-气-气候相互作用的历史性测度。

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