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The study of the spatio-temporal changes of drought in the Mongolian Plateau in 40 years based on TVDI

  • Cao Xiaoming
  • , Feng Yiming
  • , Wang Juanle
  • , Zhiqiang Gao*
  • , Jicai Ning
  • , Wei Gao
  • *此作品的通讯作者
  • Chinese Academy of Forestry
  • CAS - Institute of Geographical Sciences and Natural Resources Research
  • CAS - Yantai Institute of Coastal Research for Sustainable Development
  • Colorado State University

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

摘要

This paper presents a new drought assessment method by modifying the NDVI-Ts space, which named NDVI-Ts general space. Based on this method, the general dry side and wet side equation were established for the period of 1981 and 2010 in the Mongolian Plateau. The results showed that: 1) the NDVI-Ts general space was more stable for monitoring drought than that for the single time Remote Sensing data; 2) TVDI was lower in the areas with high latitude, high vegetation cover, well-growing vegetation, which indicated higher soil moisture.3) The dry level area was the largest one, and the normal area was the second largest, the wet level area was the third, the extremely dry and extremely wet area was the least.4)The results showed that the fluctuated area mainly occurred in the normal level and the dry level, the extremely wet level, the wet level and extremely dry level basically remained unchanged. It may be explored that, the aridification became more serious in the 1981 - 2012, the area transformation mainly occurred between the normal level and dry level.

源语言英语
主期刊名Remote Sensing and Modeling of Ecosystems for Sustainability XI
编辑Jinnian Wang, Ni-Bin Chang, Wei Gao
出版商SPIE
ISBN(电子版)9781628412482
DOI
出版状态已出版 - 2014
已对外发布是
活动Remote Sensing and Modeling of Ecosystems for Sustainability XI - San Diego, 美国
期限: 18 8月 2014 → 20 8月 2014

丛书

姓名Proceedings of SPIE - The International Society for Optical Engineering
卷9221
ISSN(印刷版)0277-786X
ISSN(电子版)1996-756X

会议

会议Remote Sensing and Modeling of Ecosystems for Sustainability XI
国家/地区美国
市San Diego
时期18/08/14 → 20/08/14

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