各种遥感数据集观测到的气候变化下黄河源区的沙丘行为

IF 3.1 3区 地球科学 Q2 GEOGRAPHY, PHYSICAL Aeolian Research Pub Date : 2024-05-08 DOI:10.1016/j.aeolia.2024.100928
Lukas Dörwald , Frank Lehmkuhl , Lucie Delobel , Deguo Zhang , Xiaoping Yang , Georg Stauch
{"title":"各种遥感数据集观测到的气候变化下黄河源区的沙丘行为","authors":"Lukas Dörwald ,&nbsp;Frank Lehmkuhl ,&nbsp;Lucie Delobel ,&nbsp;Deguo Zhang ,&nbsp;Xiaoping Yang ,&nbsp;Georg Stauch","doi":"10.1016/j.aeolia.2024.100928","DOIUrl":null,"url":null,"abstract":"<div><p>Sand dunes are a landscape feature with a quick response time to climate change and human influences (e.g. grazing, greening projects, and fixation structures). Their migration rates and their development can help to gather information about changing environmental conditions over time. The Source Area of the Yellow River (SAYR), located upon the Tibetan Plateau, is highly complex with topographical, hydrological, and climatological influences on active dunes, making it a good study area for these interactions. Based on remote sensing datasets, spanning the last 54 years, 415 dunes were mapped for migration rate calculations. Further, climate data from ERA-5 reanalysis and a local climate station was used to assess their changes within a changing climate. Generally, dune migration rates are rather slow with an average of 3.62 m y<sup>-1</sup>. In accordance, the averaged resultant drift potential (RDP) values are lower than 10 m3/s<sup>−3</sup>(−|-). Further, we assessed the density development of the main active barchan dune field in direct premise of the Yellow River. Throughout the past 54 years, we observed the emergence of more than 5 new barchans per square kilometer. This increase is likely attributed to higher sand flux from the Yellow River, which has resulted from increased discharge due to declining snowfall and rising precipitation levels.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":null,"pages":null},"PeriodicalIF":3.1000,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1875963724000399/pdfft?md5=b0eb8f186bbcaf6e30d7b3c9e4eb9b24&pid=1-s2.0-S1875963724000399-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Dune behavior in the Source Area of the Yellow River under climate changes observed from various remote sensing datasets\",\"authors\":\"Lukas Dörwald ,&nbsp;Frank Lehmkuhl ,&nbsp;Lucie Delobel ,&nbsp;Deguo Zhang ,&nbsp;Xiaoping Yang ,&nbsp;Georg Stauch\",\"doi\":\"10.1016/j.aeolia.2024.100928\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Sand dunes are a landscape feature with a quick response time to climate change and human influences (e.g. grazing, greening projects, and fixation structures). Their migration rates and their development can help to gather information about changing environmental conditions over time. The Source Area of the Yellow River (SAYR), located upon the Tibetan Plateau, is highly complex with topographical, hydrological, and climatological influences on active dunes, making it a good study area for these interactions. Based on remote sensing datasets, spanning the last 54 years, 415 dunes were mapped for migration rate calculations. Further, climate data from ERA-5 reanalysis and a local climate station was used to assess their changes within a changing climate. Generally, dune migration rates are rather slow with an average of 3.62 m y<sup>-1</sup>. In accordance, the averaged resultant drift potential (RDP) values are lower than 10 m3/s<sup>−3</sup>(−|-). Further, we assessed the density development of the main active barchan dune field in direct premise of the Yellow River. Throughout the past 54 years, we observed the emergence of more than 5 new barchans per square kilometer. This increase is likely attributed to higher sand flux from the Yellow River, which has resulted from increased discharge due to declining snowfall and rising precipitation levels.</p></div>\",\"PeriodicalId\":49246,\"journal\":{\"name\":\"Aeolian Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.1000,\"publicationDate\":\"2024-05-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S1875963724000399/pdfft?md5=b0eb8f186bbcaf6e30d7b3c9e4eb9b24&pid=1-s2.0-S1875963724000399-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Aeolian Research\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1875963724000399\",\"RegionNum\":3,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"GEOGRAPHY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aeolian Research","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1875963724000399","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GEOGRAPHY, PHYSICAL","Score":null,"Total":0}
引用次数: 0

摘要

沙丘是一种对气候变化和人类影响(如放牧、绿化工程和固定结构)反应迅速的地貌特征。沙丘的迁移率及其发展有助于收集有关环境条件随时间变化的信息。位于青藏高原的黄河源头地区(SAYR)地形、水文和气候对活跃沙丘的影响非常复杂,因此是研究这些相互作用的良好区域。根据过去 54 年的遥感数据集,绘制了 415 个沙丘的迁移率计算图。此外,ERA-5 再分析和当地气候站的气候数据也用于评估沙丘在气候变化中的变化。一般来说,沙丘迁移速度相当缓慢,平均为 3.62 米/年-1。因此,平均结果漂移势(RDP)值低于 10 m3/s-3(-|-)。此外,我们还评估了黄河正前方的主要活动沙丘地的密度发展情况。在过去的 54 年中,我们观察到每平方公里出现了超过 5 个新的沙丘。沙丘密度的增加可能是由于降雪量减少和降水量增加导致黄河排沙量增加。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Dune behavior in the Source Area of the Yellow River under climate changes observed from various remote sensing datasets

Sand dunes are a landscape feature with a quick response time to climate change and human influences (e.g. grazing, greening projects, and fixation structures). Their migration rates and their development can help to gather information about changing environmental conditions over time. The Source Area of the Yellow River (SAYR), located upon the Tibetan Plateau, is highly complex with topographical, hydrological, and climatological influences on active dunes, making it a good study area for these interactions. Based on remote sensing datasets, spanning the last 54 years, 415 dunes were mapped for migration rate calculations. Further, climate data from ERA-5 reanalysis and a local climate station was used to assess their changes within a changing climate. Generally, dune migration rates are rather slow with an average of 3.62 m y-1. In accordance, the averaged resultant drift potential (RDP) values are lower than 10 m3/s−3(−|-). Further, we assessed the density development of the main active barchan dune field in direct premise of the Yellow River. Throughout the past 54 years, we observed the emergence of more than 5 new barchans per square kilometer. This increase is likely attributed to higher sand flux from the Yellow River, which has resulted from increased discharge due to declining snowfall and rising precipitation levels.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Aeolian Research
Aeolian Research GEOGRAPHY, PHYSICAL-
CiteScore
7.10
自引率
6.10%
发文量
43
审稿时长
>12 weeks
期刊介绍: The scope of Aeolian Research includes the following topics: • Fundamental Aeolian processes, including sand and dust entrainment, transport and deposition of sediment • Modeling and field studies of Aeolian processes • Instrumentation/measurement in the field and lab • Practical applications including environmental impacts and erosion control • Aeolian landforms, geomorphology and paleoenvironments • Dust-atmosphere/cloud interactions.
期刊最新文献
Aeolian sand cover on a granite peninsula (Hammeren, Bornholm, Baltic Sea) formed in three episodes during the past 11,600 years Speculation on an early Pleistocene origin of the Parker dunes of southwest Arizona, USA Transport and deposition of microplastics and microrubbers during a dust storm (Sarakhs, northeast Iran) Automatic identification of saltating tracks driven by strong wind in high-speed video using multiple statistical quantities of instant particle velocity Characterizing variability in geochemistry and mineralogy of western US dust sources
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1