DOI: 10.1007/s00382-011-1046-9
Scopus记录号: 2-s2.0-84859003777
论文题名: A proxy record of winter temperatures since 1836 from ice freeze-up/breakup in lake Näsijärvi, Finland
作者: Mudelsee M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2012
卷: 38, 期: 2017-07-08 起始页码: 1413
结束页码: 1420
语种: 英语
英文关键词: Block bootstrap resampling
; Documentary data
; Errors-in-variables regression
英文摘要: One obstacle on the way to a comprehensive spatial reconstruction of regional temperature changes over the past centuries is the sparseness of long winter temperature records. This paper reconstructs a proxy record of April and November-December temperatures in south-central Finland for the interval from 1836 to 1872 from breakup and freeze-up dates and ice-cover duration of a lake. Emphasis is on detecting the suitable winter months and quantifying the calibrations with measured temperatures (1873-2002). The calibration slope for the breakup date (0. 158°C/day) is larger than for freeze-up date (0. 119°C/day) or duration (0. 090°C/day). A comparison with results from other proxy records shows that the slope may depend also on the geographical site. Trend analyses of the full temperature records (1836-2002) indicate the existence of minor change-points at around 1867 (April temperature) and 1874 (November-December temperature), with warming rates thereafter of 1. 67°C per century (April) and 1. 16°C per century (November-December). Spectral analyses reveal peaks in the band between 2 and 5 year period, which may point to influences of the North Atlantic Oscillation, and less power in the decadal band (up to 42 year period). © 2011 Springer-Verlag. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55332
Appears in Collections: 过去全球变化的重建
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作者单位: Climate Risk Analysis, Schneiderberg 26, 30167 Hannover, Germany; Alfred Wegener Institute for Polar and Marine Research, Bussestrasse 24, 27570 Bremerhaven, Germany
Recommended Citation:
Mudelsee M.. A proxy record of winter temperatures since 1836 from ice freeze-up/breakup in lake Näsijärvi, Finland[J]. Climate Dynamics,2012-01-01,38(2017-07-08)