Late Holocene (2 ka) sea level, river discharge and climate interrelationship in the Taiwan region
Resource
Journal of Asian Earth Sciences 18 (4): 499-505
Journal
Journal of Asian Earth Sciences
Pages
499-505
Date Issued
2000
Date
2000
Author(s)
Liew, Ping. -Mei
Hsieh, Meng. -Long
Abstract
Based on the palynological study of two alpine lakes of the central mountains and a lake at 460 m elevation in northeastern Taiwan, a warm event which lasted several hundred years from about cal 2 ka, followed a cool-dry interval from about cal 3.7-2.0 ka. Evidence indicates a warmer annual temperature of 1-2°C and relatively higher precipitation during the warm interval compared with the cool-dry interval. Sea level at cal 2-1.5 ka is estimated to have been 130-150 cm higher than at present based on data from the Penghu Islands off western Taiwan (Chen and Liu, Quaternary Research 45, 254-262, 1996). In northern Taiwan, the corresponding sea level rise is recognized by a widening of the estuary in the Taipei Basin (Lin, Development of Taipei City, pp. 159-246, 1981), which is consistent with the distribution of archaeological sites around cal 2 ka. The age of lower river terraces in northern (Lanyang) and southern (Erhjen) Taiwan, are consistently in the range cal. 2.5-1.5 ka. This suggests an island-wide morphological process, probably relating to climate change. This study discusses the inferred climate change and possible morphological responses. (C) 2000 Elsevier Science Ltd. All rights reserved.
Other Subjects
climate change; Holocene; paleoclimate; river discharge; sea level; Taiwan
Type
journal article
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