Arid
DOI10.1016/j.yqres.2008.12.001
The effect of climate change on the mobility and stability of coastal sand dunes in Ceara State (NE Brazil)
Tsoar, Haim1; Levin, Noam2; Porat, Naomi3; Maia, Luis P.4; Herrmann, Hans.5; Tatumi, Sonia H.6; Claudino-Sales, Vanda7
通讯作者Tsoar, Haim
来源期刊QUATERNARY RESEARCH
ISSN0033-5894
出版年2009
卷号71期号:2页码:217-226
英文摘要

The coast of Ceara State in NE Brazil is covered by vast fields of active and stabilized coastal sand dunes. Its tropical climate is characterized by two seasons, wet and dry, with wind intensity determined by the meridional shift of the Intertropical Convergence Zone. The wind power is negatively correlated with precipitation, and precipitation is negatively correlated with the difference between sea surface temperatures of the tropical Atlantic north and south of the equator. We present a model suggesting that during the Late Pleistocene wind power determined the mobility and stability of the dunes. Sand dunes accumulated during periods of high wind power (as it is today) and stabilized when wind power was low. Once the dunes were stabilized by vegetation they Could not be activated even by increased wind power. Samples that were taken for luminescence dating from 25 stabilized dunes along the coasts of Ceara gave ages ranging from 135 ka to < 100 yr. We postulate that these luminescence ages fall at the beginning of wet periods in NE Brazil characterized by low wind power. These paleoclimatic wet periods correlate well with the cold periods of stades in Greenland ice-core records. (c) 2008 University of Washington. All rights reserved.


英文关键词Coastal sand dunes Mobility Stability Climate change NE Brazil
类型Article
语种英语
国家Israel ; Brazil ; Switzerland
收录类别SCI-E
WOS记录号WOS:000263883500013
WOS关键词SEA-SURFACE TEMPERATURE ; NORTHEASTERN BRAZIL ; TROPICAL ATLANTIC ; AUSTRALIA ; DESERT ; MIGRATION ; EVENTS ; SINGLE ; QUARTZ ; TIME
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
来源机构Ben-Gurion University of the Negev ; Hebrew University of Jerusalem
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/162372
作者单位1.Ben Gurion Univ Negev, Dept Geog & Environm Dev, IL-84105 Beer Sheva, Israel;
2.Hebrew Univ Jerusalem, Dept Geog, IL-91905 Jerusalem, Israel;
3.Geol Survey Israel, IL-95301 Jerusalem, Israel;
4.Inst Ciencias Mar, LABOMAR, Fortaleza, Ceara, Brazil;
5.ETH Honggerberg, Inst Baustoffe IfB, Swiss Fed Inst Technol, CH-8093 Zurich, Switzerland;
6.Fac Tecnol Sao Paulo, Ctr Estadual Educ Tecnol, Lab Vidros & Datacao, Sao Paulo, Brazil;
7.Univ Fed Ceara, Dept Geog, BR-60451970 Fortaleza, Ceara, Brazil
推荐引用方式
GB/T 7714
Tsoar, Haim,Levin, Noam,Porat, Naomi,et al. The effect of climate change on the mobility and stability of coastal sand dunes in Ceara State (NE Brazil)[J]. Ben-Gurion University of the Negev, Hebrew University of Jerusalem,2009,71(2):217-226.
APA Tsoar, Haim.,Levin, Noam.,Porat, Naomi.,Maia, Luis P..,Herrmann, Hans..,...&Claudino-Sales, Vanda.(2009).The effect of climate change on the mobility and stability of coastal sand dunes in Ceara State (NE Brazil).QUATERNARY RESEARCH,71(2),217-226.
MLA Tsoar, Haim,et al."The effect of climate change on the mobility and stability of coastal sand dunes in Ceara State (NE Brazil)".QUATERNARY RESEARCH 71.2(2009):217-226.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Tsoar, Haim]的文章
[Levin, Noam]的文章
[Porat, Naomi]的文章
百度学术
百度学术中相似的文章
[Tsoar, Haim]的文章
[Levin, Noam]的文章
[Porat, Naomi]的文章
必应学术
必应学术中相似的文章
[Tsoar, Haim]的文章
[Levin, Noam]的文章
[Porat, Naomi]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。