The geography of Kamchatka
The geography of Kamchatka
复制标题
DOI：
10.1016/j.gloplacha.2015.06.003
复制
发表时间：
2015-11
影响因子：
3.9
通讯作者：
V. Jones;O. Solomina
中科院分区：
文献类型：
--
作者：
V. Jones;O. Solomina
本文简要回顾了堪察加地区的自然地理和人文地理，并总结了前人关于全新世气候动力学的研究。我们为《全球与行星变化》杂志题为“堪察加半岛全新世气候变化”的特刊的其余部分提供背景，其主要重点是利用湖泊沉积物记录进行古气候推断。本文从正在进行的树木年轮、冰芯和钻孔温度重建中获得了额外的视角，表明堪察加地区拥有丰富的古气候指标。代理信息充分涵盖了过去 200 年的时间，包括年度分辨率的重建。在此期间，树木年轮、冰芯、钻孔和冰川波动记录了1°C的变暖和普遍的冰川退缩，即从小冰期气候向现代气候的转变。尽管这些指标总体上具有不同的分辨率、准确性和季节性，但它们展示了过去两个世纪环境变化的连贯图景。树木年轮和冰芯记录长达四千六百年，它们提供了夏季气温的年际变化、堆积过程、火山喷发和火山泥流活动的信息。
This paper briefly reviews the physical and human geography of the Kamchatka region and summarises previous research on Holocene climate dynamics. We provide context for the rest of the Special Issue of the Journal Global and Planetary Change entitled ‘Holocene climate change in Kamchatka’, the primary focus of which is the use of lake sediment records for palaeoclimatic inferences. In this paper an additional perspective from ongoing tree ring, ice core and borehole temperature reconstructions illustrates that the Kamchatka region is rich in paleoclimatic proxies. The period of the last 200 years is sufficiently covered by the proxy information, including reconstructions with annual resolution. In this period the tree-rings, ice cores, boreholes, and glacier fluctuations recorded a 1 °C warming and a general glacier retreat, i.e. the transition from the Little Ice Age climate to the modern one. Although the proxies have different resolution, accuracy and seasonality in general they demonstrate a coherent picture of environmental changes in the last two centuries. The tree ring and ice core records are up to four-six hundred years long and they provide information on annual to decadal variability of summer temperature, accumulation processes, volcanic eruptions and lahar activity.