Academic Journal
Linking moisture and near-surface wind with winter temperature to reveal the Holocene climate evolution in arid Xinjiang region of China
| العنوان: | Linking moisture and near-surface wind with winter temperature to reveal the Holocene climate evolution in arid Xinjiang region of China |
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| المؤلفون: | Fuyuan Gao, Junhuai Yang, Dunsheng Xia, Hao Lu, Shuyuan Wang, Kaiming Li, Zhenqian Wang, Zhipeng Wu, Jiaxin Zhou, Fuxi Shi |
| المصدر: | Geoscience Frontiers, Vol 13, Iss 6, Pp 101433- (2022) |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2022 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Holocene climate change, Moisture, Temperature, Near-surface wind strength, Siberian high-pressure system, Mid-latitude Westerlies, Geology, QE1-996.5 |
| الوصف: | An increasing number of palaeo-climatic records have been reported to identify the Holocene climate history in the arid Xinjiang region of northwest China. However, few studies have fully considered the internal linkages within the regional climate system, which may limit our understanding of the forcing mechanisms of Holocene climate change in this region. Here, we systematically consider three major issues of the moisture/precipitation, temperature and near-surface wind relevant to the Holocene climate history of Xinjiang. First, despite there still has debated for the Holocene moisture evolution in this region, more climatic reconstructions from lake sediments, loess, sand-dunes and peats support a long-term regional wetting trend. Second, temperature records from ice cores, peats and stalagmites demonstrate a long-term winter warming trend during the Holocene in middle- to high-latitudes of Asia. Third, recent studies of aeolian sedimentary sequences reveal that the near-surface winds in winter gradually weakened during the Holocene, whereas the winter mid-latitude Westerlies strengthened in the Tienshan Mountains. Based on this evidence, in the arid Xinjiang region we propose an early to middle Holocene relatively cold and dry interval, with strong near-surface winds; and a warmer, wetter interval with weaker near-surface winds in the middle to late Holocene during winter. Additionally, we develop a conceptual model to explain the pattern of Holocene climate changes in this region. From the early to the late Holocene, the increasing atmospheric CO2 content and winter insolation, and the shrinking of high-latitude continental ice-sheets, resulted in increasing winter temperatures in middle to high latitudes in the Northern Hemisphere. Subsequently, the increased winter temperature strengthened the winter mid-latitude Westerlies and weakened the Siberian high-pressure system, which caused an increase in winter precipitation and a decrease in near-surface wind strength. This scenario is strongly supported by ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1674-9871 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S167498712200086X; https://doaj.org/toc/1674-9871; https://doaj.org/article/3c4b5f5a4f4749fb8cd41287befc8bfc |
| DOI: | 10.1016/j.gsf.2022.101433 |
| الاتاحة: | https://doi.org/10.1016/j.gsf.2022.101433 https://doaj.org/article/3c4b5f5a4f4749fb8cd41287befc8bfc |
| رقم الانضمام: | edsbas.E6B7BCA2 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 16749871 |
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| DOI: | 10.1016/j.gsf.2022.101433 |